CLASS 343, COMMUNICATIONS: RADIO WAVE ANTENNAS |
700R | ANTENNAS: |
This subclass is indented under the class definition. Subject matter and limited by claimed subject matter to
coupling electrical energy between free space and restricted space, i.e., the
radiation or collection of such energy together with its transmission
to or from a transmitter or receiver, and not otherwise
classifiable.
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
701 | . Having electric space discharge device: |
This subclass is indented under subclass 700. Subject matter wherein the antenna includes an electric
discharge device, the space discharge of this device serving
as a portion of the antenna or the antenna coupling.
SEE OR SEARCH CLASS:
| |||||||||||
702 | . With radio cabinet: |
This subclass is indented under subclass 700. Subject matter wherein the antenna is combined with the
cabinet which encloses the receiving or transmitting structure in
such manner that a significant relationship exists between the antenna
and cabinet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
703 | . Measuring signal energy: |
This subclass is indented under subclass 700. Subject matter wherein the antenna is combined with structure
which tells the magnitude of the signal energy flowing to, in, or
from the antenna, and wherein a significant relationship exists
between the antenna and this measuring structure.
SEE OR SEARCH CLASS:
| |||||||||||||||
704 | . With ice clearer or preventer: |
This subclass is indented under subclass 700. Subject matter wherein the antenna includes means which
prevents or reduces ice, snow or sleet accumulation, such
as heating apparatus or material having a low freezing point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
705 | . With aircraft: |
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with, or
has at least a part in common with at least a part of, a
device peculiarity adapted to travel or be suspended in the air such
as an airplane, balloon, projectile, or guided
missile, and wherein a significant relationship exists
between the device and the active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
706 | .. Lighter-than-air device: |
This subclass is indented under subclass 705. Subject matter wherein at least a portion of the active
antenna is maintained in an elevated position by a lighter-than-air
device, e.g., balloon.
SEE OR SEARCH CLASS:
| |||||||
707 | .. Trailing type: |
This subclass is indented under subclass 705. Subject matter wherein the active antenna is an elongated
flexible mass suspended from the aircraft, or the active
antenna is suspended from the aircraft by an elongated flexible
support so that the antenna will trail from the aircraft as by the
relative motion between the aircraft and the surrounding air.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
708 | .. Aircraft part of active antenna or vice versa: |
This subclass is indented under subclass 705. Subject matter wherein the active antenna and the device
have a common portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
709 | . Waterborne (e.g., buoyant or with watercraft): |
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with, or
has at least a part in common with at least a part of a device peculiarly adapted
for travel or to be suspended in water, such as a surface
ship, submarine, torpedo, buoy or other
floating structure and wherein a significant relationship exists
between the device and the active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||
710 | .. Watercraft part of active antenna or vice versa: |
This subclass is indented under subclass 709. Subject matter wherein the active antenna and the device
have a common portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
711 | . With vehicle: |
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with, or
has at least a part in common with at least a part of, vehicle
structure or accessories peculiarly adapted for use with a vehicle, and
wherein a significant relationship exists between the antenna and
vehicle or accessory structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
712 | .. Vehicle part of active antenna or vice versa: |
This subclass is indented under subclass 711. Subject matter wherein the active antenna and vehicle structure
or accessory have a common portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
713 | .. Supported by vehicle body: |
This subclass is indented under subclass 711. Subject matter wherein the body of the vehicle serves as
a support or supporting base for the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
714 | ... Antenna adjustable from inside body: |
This subclass is indented under subclass 713. Subject matter wherein the active antenna or a portion thereof
is movably supported on the vehicle body together with structure
controlled within the body for moving the antenna for such purposes
as adjusting the operative position of the antenna or moving the
antenna from an operative to an inoperative position, e.g., extending
or retracting a rod antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
715 | ... Rod type: |
This subclass is indented under subclass 713. Subject matter wherein the active antenna is of the rod
type as defined in subclass 900, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
716 | ... Running board: |
This subclass is indented under subclass 713. Subject matter wherein the portion of the body supporting the antenna is the running board. | |
717 | .. Supported underneath vehicle: |
This subclass is indented under subclass 711. Subject matter wherein the antenna, when in operative
position, is supported under the vehicle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
718 | . Body-attached or connected: |
This subclass is indented under subclass 700. Subject matter wherein the antenna is shaped to fit the
body or to be supported by body, or including structure
whereby the antenna is secured to the body to be freely portable
by the body under operative conditions, or structure which
enables the body to operate as an antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
719 | . Buried underground or submerged under water: |
This subclass is indented under subclass 700. Subject matter wherein the active portion of the antenna
is claimed to be at least partially buried under the ground or submerged
in water under operative conditions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
720 | . Combined with diverse-type art device: |
This subclass is indented under subclass 700. Subject matter wherein the antenna is combined with other
devices or structures having an added purpose or independent utility
other than to perfect the antenna, i.e., the
other devices or structures are not directly related to the primary
function of the antenna, which is the emission or collection
of electromagnetic wave energy together with the conveying of such
energy to or from the transmitter or receiver leadin.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||
721 | .. Light: |
This subclass is indented under subclass 720. Subject matter wherein the diverse type art device is a
light.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
722 | . With lumped reactance filter in active antenna: |
This subclass is indented under subclass 700. Subject matter wherein an active antenna includes an elongated
portion having lumped inductance and capacity in series or shunt
with the active portion remote from the lead-in terminals
to pass a particular frequency or band of frequencies and to block
another frequency or band of frequencies.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||
723 | . Single adjustable length electrically long linear antenna: |
This subclass is indented under subclass 700. Subject matter wherein the antenna is a single end fed elongated
linear mass of appreciable electrical length, and is physically
adjustable in its length, usually for tuning the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||
724 | . Convertible to different antennas: |
This subclass is indented under subclass 700. Subject matter wherein the active antenna is constructed
so that it may be changed into a different species of active antenna
as, for example, by switching means connecting
the active portion or portions in a different arrangement to the
source or load or by adding to or removing part of the radiating
or collecting element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||
725 | . Plural separate diverse type: |
This subclass is indented under subclass 700. Subject matter including two antennas each of different
type, whose active radio wave radiating or collecting elements
are physically separate and distinct.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||||||||||||||||||||||
726 | .. Including balanced doublet and loop-type antennas: |
This subclass is indented under subclass 725. Subject matter wherein one of the diverse type antennas
is of the loop type and one other of the diverse type antennas is
of the center-fed balanced doublet type, as defined
in subclasses 741, 793, and 866, below.
| |||
727 | .. Including balanced doublet-type antenna: |
This subclass is indented under subclass 725. Subject matter wherein one of the diverse type antennas
is of the center-fed balanced doublet type as defined in
subclass 793, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
728 | .. Including loop-type antenna: |
This subclass is indented under subclass 725. Subject matter wherein one of the diverse type antennas
is of the loop type as defined in subclasses 741 and 866 below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||
729 | . Plural diverse-type antennas using same active element: |
This subclass is indented under subclass 700. Subject matter including two antennas each of different
type, whose active radio wave radiating or collecting elements
are at least partly in common.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
730 | .. Including balanced doublet-type antenna: |
This subclass is indented under subclass 729. Subject matter wherein one of the antennas is of the balanced
doublet type as classified in subclass 793, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
731 | . Traveling wave type: |
This subclass is indented under subclass 700. Subject matter wherein an elongated conducting mass of appreciable
electrical length with respect to the wave length of the signal
energy (usually greater than a half-wave length) is coupled
to free space continuously along its length to transmit signal energy
between the mass and free space along its length; the mass being
inherently adapted to, or being arranged to, or
including structure to give the mass a delay or acceleration characteristic
in the direction of propagation of the radio wave in space to which
the mass is coupled so that the wave of electric energy conducted
along the mass remains in phase with the associated radio wave moving
in space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
732 | .. Circular loop: |
This subclass is indented under subclass 731. Subject matter wherein the elongated conducting mass forms
substantially a circle in a single plane.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
733 | .. Rhombic: |
This subclass is indented under subclass 731. Subject matter wherein the elongated conducting mass is
formed in two co-extensive portions, each portion
being connected at the corresponding end to a lead-in terminal, the portions
diverging and then converging to form a diamond or rhombus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
734 | ... With feedback: |
This subclass is indented under subclass 733. Subject matter including a circuit extending from the end of the conducting mass opposite the lead-in terminals around the mass to the antenna leadin or to associated circuitry for conveying, for example, the nonradicated energy back to the antenna input. | |
735 | .. Balanced V: |
This subclass is indented under subclass 731. Subject matter wherein the conducting mass is composed of
two diverging portions, each portion connected at the apex
to a transmitter or receiver in a balanced manner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
736 | .. Inverted V: |
This subclass is indented under subclass 731. Subject matter wherein the conducting mass is formed as
a V, and lying usually in a substantially vertical plane
with the apex of the V uppermost, and one end of the mass
being connected to an unbalanced lead-in terminal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
737 | .. Plural: |
This subclass is indented under subclass 731. At least two antennas, each above, which
are independently operable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
738 | .. With reflecting transformer: |
This subclass is indented under subclass 731. Subject matter wherein the conducting mass is composed of
two adjacent coextensive wires with a termination at the end opposite
the coupling end, a signal wave which is picked up by the
wires and which is conducted along the wires to the termination
being returned over the wires in phase opposition in the respective wires, i.e., the
wires are effective as a balanced line for this returned energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
739 | . With terminating resistance at open end: |
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
a resistance at the end electrically remote from the lead-in
terminal to the transmitter or receiver, the resistance
being connected to form a closed electric loop across the transmitter
or receiver.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
740 | .. Balanced type: |
This subclass is indented under subclass 739. Subject matter wherein the active antenna includes the return
circuit as an active portion thereof, thus forming two
similar active portions, which are connected respectively
to balanced lead-in terminals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||
741 | . High frequency type loops: |
This subclass is indented under subclass 700. Subject matter wherein a current path of appreciable electrical
length is arranged as a substantially closed active loop having
an appreciable electrical dimension between all opposing points
on the loop together with structure or proportions to maintain a
desired current distribution around the loop.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
742 | .. Plural: |
This subclass is indented under subclass 741. Subject matter including two or more loops, each
as defined in subclass 741 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
743 | .. Feed coupling at spaced points on loop: |
This subclass is indented under subclass 741. Subject matter wherein the antenna feed line is connected
at two or more spaced points along the perimeter of the closed loop.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
744 | .. With series reactance in loop: |
This subclass is indented under subclass 741. Subject matter wherein the closed loop includes inductance
or capacity in series around the current path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
745 | . With variable reactance for tuning antenna: |
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
an adjustable inductance or capacity, distinct and separate
from the active antenna, the inductance or capacity providing
a reactance which combines with the inherent reactance of the active
antenna to establish a resonance in a circuit including the antenna, this
resonance being at a frequency other than the natural electrical
resonant frequency of the antenna, adjustment of the inductance
or capacity changing this resonance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||||
746 | .. Slot type: |
This subclass is indented under subclass 745. Subject matter wherein the active antenna is of the slot
type as defined in subclass 767 below.
| |||
747 | .. Balanced doublet type: |
This subclass is indented under subclass 745. Subject matter wherein the active antenna is of the center-fed
balanced doublet type as defined in subclass 793 below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
748 | .. Loop type: |
This subclass is indented under subclass 745. Subject matter wherein the active antenna is of the loop
type as defined in subclass 866, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
749 | . With lumped reactance for loading antenna: |
This subclass is indented under subclass 700. Subject matter wherein a resonant active antenna includes
an elongated portion of appreciable electrical length having lumped
inductance or capacity directly in series or shunt with the elongated
portion (to modify the standing wave pattern existing along
the portion, or to change the effective electrical length of
the portion).
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||
750 | .. Adjustable reactance: |
This subclass is indented under subclass 749. Subject matter wherein the lumped inductance or capacity
is adjustable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
751 | .. Plural antennas: |
This subclass is indented under subclass 749. Subject matter including at least two antennas as defined
therein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
752 | .. Reactance at free end of active antenna: |
This subclass is indented under subclass 749. Subject matter wherein the lumped inductance or capacity
is connected at the free end of the active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
753 | . With spaced or external radio wave refractor (e.g., lens): |
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
structure spaced from or external to the active antenna which transmits
waves going to or from the active antenna, and is shaped
or positioned to delay or accelerate transmitted waves an amount
which varies over the wave front, to alter the direction
or propagation of the waves emitted from the structure with respect
to the waves impinging on the structure, or to bring the
wave to a focus, or to alter the wave front (such
as to convert a spherical wave front to a planar wave front or vice versa).
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||
754 | .. With scanning, sweeping, or orienting: |
This subclass is indented under subclass 753. Subject matter wherein structure is included which permits
or effects scanning, sweeping, or orienting of
the antenna beam.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
755 | .. With reflector: |
This subclass is indented under subclass 753. Subject matter including a reflector, or wherein the
refractor is also adapted to perform a reflecting function.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||
756 | . With polarization filter or converter: |
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
structure which acts directly on the radio wave to filter out wave
energy of an undesired polarization or to modify the polarization
pattern of the wave.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
757 | . With means for moving directive antenna for scanning, sweeping or orienting: |
This subclass is indented under subclass 700. Subject matter wherein the complete antenna is movably (e.g., pivoted
or rotatably) supported for motion as a unit or wherein
the reflector and antenna are supported to be relatively movable, together
with structure that effects or is peculiarly adapted to effect motion
of the antenna or relative motion between the antenna and reflector
in such fashion that the radiation pattern is scanned, swept
or oriented.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||||||||||
758 | .. Plural relatively movable: |
This subclass is indented under subclass 757. Subject matter combined with another relatively movable
antenna, together with structure that effects relative
motion between the complete antennas or between the active antenna portions
or the reflectors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
759 | .. Spiral motion: |
This subclass is indented under subclass 757. Subject matter wherein the directive antenna is supported
for movement of the axis of its beam over a spiral path and wherein
the means for moving includes structure which causes the antenna
to move its beam axis cyclically over a spiral path.
SEE OR SEARCH CLASS:
| |||||
760 | .. With signal, indicator or alarm: |
This subclass is indented under subclass 757. Subject matter together with signal, alarm, or indicator
structure which is responsive to the scan, sweep or orientation
of the antenna, independent in its operation from the collected
or radiated signal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
761 | .. Reflector and antenna relatively movable: |
This subclass is indented under subclass 757. Subject matter wherein the reflector and active antenna
are supported to be relatively movable, together with structure
that effects or is peculiarly adapted to effect relative motion
between the antenna and reflector element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
762 | .. Wave guide type antenna: |
This subclass is indented under subclass 757. Subject matter wherein the active antenna is of the wave
guide type as defined in subclass 772 below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
763 | .. Rotary or rotary oscillatory motion: |
This subclass is indented under subclass 757. Subject matter wherein the antenna is rotatably supported
together with structure for imparting continuous or oscillating
angular motion to the complete antenna as a unit relative to its
support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
764 | ... Loop-type antenna: |
This subclass is indented under subclass 763. Subject matter wherein the rotatable antenna is of the loop
type as defined in subclass 866, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
765 | ... In different planes: |
This subclass is indented under subclass 763. Subject matter wherein the antenna is supported for rotation
in different planes (i.e., rotatable
about two or more angularly disposed axes) together with
structure for imparting continuous or oscillating angular motion
to the antenna as a unit in these planes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
766 | ... Motor-driven: |
This subclass is indented under subclass 763. Subject matter wherein the means imparting motion to the
antenna is a motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||
767 | . Slot type: |
This subclass is indented under subclass 700. Subject matter including a conducting surface, such
as a metallic sheet which may be flat or curved, and an
aperture in the surface, which may be completely surrounded
by the surface or extended inwardly from an edge of the surface, together
with coupling means which establishes a potential difference at
spaced points along the aperture or extracts received energy from
these points, these points usually being across the aperture, the
surface furnishing a conductive path between these spaced points
to permit current to flow therebetween.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
768 | .. With periodic control of slot or coupling: |
This subclass is indented under subclass 767. Subject matter wherein structure is provided for modifying
the transmission characteristic of a slot or its coupling, the
structure being normally operated in a cyclical or repetitive manner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
769 | .. Ring-shaped slot: |
This subclass is indented under subclass 767. Subject matter wherein the aperture is shaped as a narrow
annulus on a flat conducting surface or a band removed from the
wall of a conducting cylinder.
| |||
770 | .. Plural: |
This subclass is indented under subclass 767. Subject matter including two or more apertures in a surface, or
two or more surfaces each having at least one aperture, all
as defined in subclass 767, above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
771 | ... With wave guide coupling: |
This subclass is indented under subclass 770. Subject matter wherein at least one of the apertures is
combined with a wave guide (or resonant cavity) for
energizing the aperture or conducting energy therefrom.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
772 | . Wave guide type (e.g., horn): |
This subclass is indented under subclass 700. Subject matter wherein a wave guide is provided between
free space and a generator or receiver of radio wave energy, or
between free space and a nonwave guide coupling or connecting structure
which establishes in or collects from the wave guide radio wave
energy, the wave guide constraining this energy in its passage
to or from free space, and being directly connected with
free space without any intervening nonwave guide coupling (such
as a probe and dipole).
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
773 | .. Biconical horn type: |
This subclass is indented under subclass 772. Subject matter wherein the wave guide has its opposing surfaces
formed as conical or flared surfaces of revolution on a common axis, the spacing
between the surfaces increasing from the apices towards the peripheries, the
coupling to the source or collector extending from the apices, as
by a coaxial line or wave guide, through one of the surfaces
of revolution, the surfaces guiding the wave energy between
the apices and the peripheries.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
774 | ... Stacked: |
This subclass is indented under subclass 773. Subject matter wherein a plurality of bi-conical horn
type antennas as defined in subclass 773 above are spaced along
a common axis, their respective axes coinciding with the
common axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
775 | ... With reflector: |
This subclass is indented under subclass 773. Subject matter wherein the bi-conical horn type antenna
as therein defined is combined with external conductive structure
which reradiates into free space impinging radio waves coming from
or going to the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
776 | .. Plural: |
This subclass is indented under subclass 772. Subject matter wherein two or more wave guides are provided
at the connection to free space to result in two or more wave guide
paths each directly coupled to free space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
777 | ... With control of individual antenna (e.g., lobe switching or steering): |
This subclass is indented under subclass 776. Subject matter wherein at least one antenna has in its wave
guide path or its coupling to the transmitter or receiver, structure
such as a switch or adjustable impedance, which alters the
amplitude or phase of the energy passing through the path or coupling
to modify the radiation or polarization pattern of the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
778 | ... With phasing: |
This subclass is indented under subclass 776. Subject matter wherein the wave guide or coupling path of
the respective antennas have significant phase characteristics in
the transmission of energy therethrough, to modify the
relative phase relationship of the transmitted radio wave energy
of the respective antennas at their coupling to space, or
to modify the relative phase relationship of the received radio wave
energy in passing through the antennas and/or coupling
paths.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
779 | ... With reflector: |
This subclass is indented under subclass 776. Subject matter wherein the plural wave guides as defined
therein are combined with external conductive structure (usually
metallic) which reradiates into free space impinging radio waves
coming from or going to the wave guides.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
780 | .. "Pillbox" type: |
This subclass is indented under subclass 772. Subject matter wherein the wave guide includes two parallel
plates which are closed along a portion of their perimeter by a
reflector, the spacing between the plates being small compared
to their surface dimensions, the plates being electrically
open to free space over a relatively large portion of their perimeter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
781R | .. With external reflector or director: |
This subclass is indented under subclass 772. Subject matter wherein the wave guide antenna as defined
therein is combined with external conductive structure (usually
metallic) which reradiates into free space impinging radio waves
coming from or going to the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
782 | ... With means reducing re-radiation into active antenna: |
This subclass is indented under subclass 781. Subject matter wherein structure or arrangement is provided
to reduce reflection or the effect or reflection of the transmitted
wave energy from the reflector back into the active transmitting
antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
781P | ... Plural reflectors |
This subclass has no definition. | |
781CA | ... With main and subreflector (Casse-grain type) |
This subclass has no definition. | |
783 | .. With internal-wave refraction means: |
This subclass is indented under subclass 772. Subject matter wherein the wave guide contains a mass (usually
dielectric) which freely passes radio waves, and
which is shaped or positioned to delay or accelerate waves passing therethrough
an amount which varies over the wave front for such purposes as
focusing, changing direction, or changing the
wave front as from circular to planar.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
784 | .. With closure: |
This subclass is indented under subclass 772. Subject matter wherein the wave guide has a mass extending
across the wave guide adjacent the end coupling the wave guide to
free space, the mass being of material which freely passes electromagnetic
wave energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
785 | .. Dielectric type (e.g., polystyrene rod): |
This subclass is indented under subclass 772. Subject matter wherein the wave guide is formed of an elongated
dielectric mass, which may be hollow, the source
or receiver of energy being adjacent one end of the mass and the coupling
for radiation to or from free space occurring along the sides or
at the other end.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
786 | .. With horn: |
This subclass is indented under subclass 772. Subject matter wherein the wave guide diverges, or
flares, in at least one dimension towards free space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
787 | . Including magnetic material: |
This subclass is indented under subclass 700. Subject matter including magnetic material which modifies
the inductance of the active portion of the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
788 | .. Loop type: |
This subclass is indented under subclass 787. Subject matter wherein the active antenna comprises a coil
of one or more turns adapted to be connected at its ends to a pair
of leadin terminals.
| |||
789 | . Within conductive apertured wall: |
This subclass is indented under subclass 700. Subject matter wherein a definite space is provided beneath
an aperture in a conducting surface, and at least one antenna
is mounted in the space with its active portion at least partially beneath
the surface to transmit or receive radio wave energy when so mounted.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
790 | . Active sleeve surrounds feed line: |
This subclass is indented under subclass 700. Subject matter wherein an active antenna element, which
may be a complete antenna or a portion of one (such as
an arm of a dipole), is formed as a cylinder, prisms, or
frustum of a cone or prism, or defines such a surface (such as
series of circularly arranged parallel wires), is
combined with a feed line which supplies radiating energy to or
from this antenna element or to or from another antenna element; and
which enters the cylinder at one end and extends within the cylinder
at least a portion of the distance to the other end; and
where the feed line is electrically coupled to this cylinder the
coupling is remote from the entrance end, there being a
substantial insulating space between the inner surface of the sleeve
and the portion of the feed line extending within the cylinder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
791 | .. With coaxial active rod: |
This subclass is indented under subclass 790. Subject matter wherein an active rod, which may
be hollow, forms an extension of and is electrically connected
to the feed line and is coaxial with the active sleeve.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
792 | .. Doublet type: |
This subclass is indented under subclass 790. Subject matter wherein the sleeve is combined with a mass
having a substantially similar external shape, and wherein
the sleeve and mass are fed in balanced relation, at least
one of the feed lines extending from one end within the sleeve at
least a portion of the distance to the other end.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
792.5 | . Logarithmically periodic: |
This subclass is indented under subclass 700. Subject matter including a series of electrically coupled
radiating masses spaced along an axis of the antenna, the
spacing of the masses from a fixed point on the axis and a dimension
of corresponding masses progressively increasing along the axis
in a manner approximating a geometrical or logarithmic progression.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
793 | . Balanced doublet - centerfed (e.g., dipole): |
This subclass is indented under subclass 700. Subject matter wherein two active conducting masses, which
are substantially alike, are physically symmetrically disposed
on opposite sides of electrically balanced, antenna lead-in terminals, each
of the masses being connected to a respective terminal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||||||
794 | .. Diverse-type doublets: |
This subclass is indented under subclass 793. Subject matter including two doublets as defined respectively
in two of the subsequent subclasses 795, 801, 802, 803, 804, 805, 806, 808, 809, 811, and
823, or wherein two doublets each within the scope of subclass
793 above, have structurally different radiating masses
to present significantly different electrical properties or radiation
properties.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
795 | .. Sheet or wing type: |
This subclass is indented under subclass 793. Subject matter wherein the conductive masses are each formed
as a sheet, or each formed as a closed portion (e.g., closed
loop) defining a sheet-like surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
796 | .. Helically or angularly staggered plural doublets: |
This subclass is indented under subclass 793. Subject matter including a plurality of doublets spaced
along an axis, an adjacent two of these doublets being
similar and angularly spaced with respect to each other around the
same axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
797 | .. Plural crossed (e.g., turnstile): |
This subclass is indented under subclass 793. Subject matter including at least two like doublets, the
conductive masses of each doublet being elongated in shape and collinearly arranged, the
doublets crossing one another at their midpoints.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
798 | ... Plural groups (e.g., stacked): |
This subclass is indented under subclass 797. Subject matter wherein a plurality of doublets as therein
defined is combined with a second distinct plurality of doublets
as therein defined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
799 | .. Plural circumferentially arranged: |
This subclass is indented under subclass 793. Subject matter wherein at least three doublets have their
midpoints arranged on the circumference of a circle and equally
spaced around this circumference; or wherein three doublets so
arranged are disclosed in the specifications, and it is
claimed that a plurality of doublets have a circumferential arrangement, or
are in circular array, or are in cylindrical formation, or
equivalent terminology; or wherein at least two doublets
are so arranged and have their arms so curved that all the arms
lie in a circle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||
800 | ... Plural groups (e.g., stacked): |
This subclass is indented under subclass 799. Subject matter wherein a plurality of doublets as herein
defined is combined with a second distinct plurality of doublets
as therein defined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
801 | .. Three or more collinear units form doublet: |
This subclass is indented under subclass 793. Subject matter wherein the active conductive masses are
of elongated shape and are longitudinally divided into at least
three discrete portions which are substantially aligned along their
longitudinal axes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
802 | .. Distributed reactance added to arms: |
This subclass is indented under subclass 793. Subject matter wherein each conducting mass includes in
addition to its own inherent reactance a distributed reactance in
series or in shunt with the mass, at least a part of the
distributed reactance being spaced on the radiating mass from the
antenna lead-in terminals, i.e., the
distributed reactance is not physically and electrically entirely
disposed between the conducting mass and the antenna lead-in
terminals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||
803 | .. Folded: |
This subclass is indented under subclass 793. Subject matter wherein the two active conductive masses
include elongated conductors which extend outwardly from the antenna
lead in terminals together with an additional elongated conductor
or conductors extending along the length of and close to the first
conductors to form a transmission line therewith, the first
and second conductors being joined at the outer ends as by bending
to present a substantially increased radiation resistance at the
antenna lead in terminals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
804 | ... Multiple conductor type: |
This subclass is indented under subclass 803. Subject matter wherein the second conductors comprise a
plurality of conductors in parallel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
805 | .. Arms angularly adjustable (e.g., rabbit ears): |
This subclass is indented under subclass 793. Subject matter wherein the two active conductive masses
are elongated and are supported adjacent the lead-in terminals
by structure permitting relative angular movement with respect to
one another, as by a pivot or hinge, for such purposes
as folding or electrically adjusting the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
806 | .. Bent arms (e.g., zigzag type): |
This subclass is indented under subclass 793. Subject matter wherein each of the separate conductive masses
constitutes a rod having a bend or curve therein remote from the
lead-in terminal to constitute a change in direction of the
rod, and all portions on both sides of the bend being radiators
or collectors of radio wave energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
807 | .. Tapered, thick, or enlarged arms: |
This subclass is indented under subclass 793. Subject matter wherein each mass constitutes an elongated
portion which is tapered, or significantly thickened or
enlarged over at least a portion of its length, such as
a thick elongated rod, cylinder, or cone, for
impedance matching, broadbanding, or presenting
a larger area for wave energy radiation or collection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||
808 | .. Plural-rod arm forming V (e.g., conical arrangement): |
This subclass is indented under subclass 793. Subject matter wherein each conductive mass is composed
of a plurality of straight linear rods which diverge from and are
electrically connected at a common point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
809 | .. Arms non-linearly arranged (e.g., resonant V type): |
This subclass is indented under subclass 793. Subject matter wherein the conductive masses are straight
and linear, and which are angularly disposed to form a
V.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
810 | .. Plural: |
This subclass is indented under subclass 793. Subject matter including two or more separate and independent
doublets as therein defined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||||||||
811 | ... Fishbone-type array: |
This subclass is indented under subclass 810. Subject matter wherein the respective arms of the doublets
are connected by two straight parallel closely spaced nonradiating
or noncollecting feed lines, the signal source or load
being connected at one end of these lines together with structure
substantially eliminating standing waves on these lines, as
by terminating the end of the lines opposite the signal source or load
in a resistance equal to the characteristic impedance of the lines.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
812 | ... Parallel arrangement: |
This subclass is indented under subclass 810. Subject matter wherein each arm of one doublet is physically
parallel to each arm of another doublet, the arms of these
doublets being substantially straight and linear.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
813 | .... Parallel and collinear arrangement: |
This subclass is indented under subclass 812. Subject matter wherein in addition to the parallel arranged
doublets, a further doublet is provided, whose
two arms together with the two arms of one of the parallel arranged
doublets lie along a single straight line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
814 | .... With coupling network: |
This subclass is indented under subclass 812. Subject matter including a passive network (which
may be resistive, inductive or capacitive or any combination
thereof) for transmitting signal energy between the doublets
and a source or a receiver of such signal energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
815 | .... With parasitic element (e.g., reflector or director): |
This subclass is indented under subclass 812. Subject matter wherein the doublets are combined with conductive
structure (usually metallic, e.g., rod) which
reradiates into free space impinging radio waves coming from or
going to the antennas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
816 | ... With coupling network: |
This subclass is indented under subclass 810. Subject matter including a passive network (which
may be resistive, inductive, or capacitive or
any combination thereof) for transmitting signal energy
between the doublets and a source or a receiver of such signal energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
817 | ... With parasitic element (e.g., reflector or director): |
This subclass is indented under subclass 810. Subject matter wherein the plural antennas are combined
with conductive structure which reradiates into free space impinging
radio waves coming from or going to the active antennas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
818 | .. With parasitic element (e.g., reflector or director): |
This subclass is indented under subclass 793. Subject matter wherein the two active conductive masses
are combined with conductive (usually metallic) structure (e.g., a
rod) which reradiates into free space impinging radio waves
coming from or going to the antenna, the velocity of the
reradiated wave having a component which is in the same direction (director) as, or
in the opposite direction (reflector) to, that
of the velocity of the impinging wave.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||
819 | ... With reflector and director: |
This subclass is indented under subclass 818. Subject matter including both a director and reflector as
defined in the above subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
820 | .. With coupling network or impedance in the leadin: |
This subclass is indented under subclass 793. Subject matter wherein the doublet antenna is combined with
a passive network (which may be resistive, inductive
or capacitive or any combination thereof) for transmitting
signal energy between the doublet and a source or receiver of such
signal energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
821 | ... Balanced to unbalanced circuit: |
This subclass is indented under subclass 820. Subject matter wherein the passive coupling network includes
four terminals, one pair of which are connected to the
balanced doublet and the other pair being for connection to a source
or receiver of signal energy or a circuit network leading thereto; the
impedance across the pair of terminals connected to the balanced doublet
being symmetrical and the network impedance across the other pair
of terminals being asymmetrical with respect to a given potential
plane (e.g., ground), this
latter impedance being effective to convert symmetrical potential
applied at the symmetrical pair of terminals (for connection
to the balanced doublet) to asymmetrical potential applied
at the other pair of terminals or vice versa.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
822 | ... Impedance matching network: |
This subclass is indented under subclass 820. Subject matter wherein the passive coupling network includes
one or more impedance elements constructed or proportioned to substantially
eliminate the reflected wave energy between the doublet antenna
and the receiver or signal energy source, caused by impedance differences.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
823 | .. Adjustable length: |
This subclass is indented under subclass 793. Subject matter wherein the overall physical length of the
two active conducting masses is adjustable, as by the length
of at least one of the masses being adjustable or by the relative spacing
of the masses being adjustable, for such purposes as tuning
or collapsing the doublet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
824 | . Planar array of linear antennas: |
This subclass is indented under subclass 700. Subject matter wherein a plurality of physically separate
straight linear radiating type conductors lie in a planar unique
surface; or the claims recite that the linear conductors
are arranged in a plane, or equivalent subject matter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||
825 | . Fractional, multiple, or full wave length linear type: |
This subclass is indented under subclass 700. Subject matter wherein the antenna is a straight linear
conductor such as a rod, wire or stub and wherein the claims
recite a particular length, series of length, range
of length, or limit of length of this conductor in terms
of its operating wave length, or the claims recite a physical length
in numerical terms (e.g., number
of feet) and in the latter case the context of the disclosure
establishes that such terms are an appreciable part of the operating
wave length.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||||||||
826 | .. Plural: |
This subclass is indented under subclass 825. Subject matter including a plurality of physically separate
linear, radiating type conductors, at least one
of the conductors having a length as recited in subclass 825.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||
827 | ... Collinear arrangement: |
This subclass is indented under subclass 826. Subject matter wherein the linear conductors have their
longitudinal axes lying substantially on a common straight line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
828 | .. Non-uniformity in antenna: |
This subclass is indented under subclass 825. Subject matter wherein the linear antenna has an abrupt
change in its cross-sectional dimension or has a substantially
nonradiating branch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
829 | .. With grounding structure, including counterpoises: |
This subclass is indented under subclass 825. Subject matter together with structure including ground
or structure most closely associated with or simulating ground, and
such structure being connected to the terminal of the signal receiver
or source opposing the active antenna terminal (i.e., having
the signal receiver or source interposed between the active antenna and
this structure), for establishing a reference potential
level for operating the active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
830 | ... With coaxial feed line: |
This subclass is indented under subclass 829. Subject matter including a coaxial feed line, the
active antenna being connected to the inner conductor at the end
of this line and the grounding structure being connected to the outer
conductor at the end of this line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
831 | .. Stub type: |
This subclass is indented under subclass 825. Subject matter wherein the linear conductor is thickened
or enlarged in cross section to produce such shapes as cylindrical, conical, diamond, double
diamond, and spheroidal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
832 | . Active antenna as reflector: |
This subclass is indented under subclass 700. Subject matter wherein the claimed subject matter includes
an active antenna designated as a reflector, or includes
an energized or active reflector (i.e., coupled
to a signal source or to a receiver).
| |||
833 | . Antenna with parasitic director: |
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
conductive (usually metallic) structure, (e.g., a
rod) which reradiates into free space impinging radio waves
coming from or going to the active antenna, the velocity
of the reradiated wave having a component in the direction of velocity
of the impinging wave, thereby to modify the radiation
pattern of the active antenna, there being no significant potential
relationship between the active antenna and the conductive structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
834 | . Antenna with parasitic reflector: |
This subclass is indented under subclass 700. Subject matter wherein an active antenna is combined with
conductive structure (usually metallic, e.g., screen
rod or plate) which returns or reradiates back into free
space impinging radio waves coming from or going to the active antenna, the
velocity of the returned wave having a component in a direction
opposite to the direction of velocity of the impinging wave, thereby
to modify the radiation pattern of the active antenna, there
being no significant potential relationship between the active antenna
and the conductive structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||
835 | .. Plural active antennas: |
This subclass is indented under subclass 834. Subject matter including two or more active antennas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
836 | ... Plural reflectors: |
This subclass is indented under subclass 835. Subject matter including two or more reflectors as defined
in subclass 834.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
837 | .. Plural reflectors: |
This subclass is indented under subclass 834. Subject matter including two or more reflectors as defined
in subclass 834 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
838 | ... Including a screening reflector: |
This subclass is indented under subclass 837. Subject matter wherein a first reflector is positioned behind
an active antenna and a second reflector (screen reflector) is
positioned in front of the antenna, the second reflector
redirecting diverging rays emanating from the active antenna in
transmission, and shielding the active antenna in reception
from undesired energy when coming from a direction other than that
of the desired received energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
839 | .. Reflector and active antenna relatively movable: |
This subclass is indented under subclass 834. Subject matter wherein means are provided permitting relative
movement or adjustment between the reflector or a part thereof and
the active antenna or a part thereof under operative conditions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
840 | .. Parabolic-type reflector with active antenna at focus: |
This subclass is indented under subclass 834. Subject matter wherein the reflector presents a reflecting
surface having a parabolic contour in at least one plane, and
the active antenna is positioned at the focus of the parabola.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
841 | . With electrical shield: |
This subclass is indented under subclass 700. Subject matter wherein a conductive or low reluctance structure, such
as a wire, plate, or grid, is combined
with the antenna to reduce, as by dissipation through a
resistance or by conduction to ground, undesired radiation, or
electric or magnetic fields, which are directed toward
the antenna from an external source, or which emanate from
the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||
842 | .. Loop-type antenna: |
This subclass is indented under subclass 841. Subject matter wherein the antenna is of the loop type as
defined in subclass 866, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
843 | . Having an appreciable wave length dimension: |
This subclass is indented under subclass 700. Subject matter wherein the claims recite the active antenna
or portion, section, or part thereof as having
a dimension which is a fractional part or multiple (including
unity) of the operating wave length of the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
844 | . Plural antennas spaced a fractional or full wave length apart: |
This subclass is indented under subclass 700. Subject matter including a plurality of antennas spaced
a physical distance apart, which distance is an appreciable
part of a wave length or number of wave lengths at the operating
frequency of the antennas; or including a plurality of
antennas combined with structure which of necessity results in the
antennas being spaced a physical distance apart, which
distance is an appreciable part of a wave length or number of wave
lengths at the operating frequency of the antennas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||
845 | . With ground connection spaced from feed line connection: |
This subclass is indented under subclass 700. Subject matter wherein the antenna has a connection to ground
at some point on the antenna physically or electrically spaced on
the antenna from the point of connection of the transmitter or receiver
leadin to the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
846 | . With grounding structure (including counterpoises): |
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
structure including ground or structure most closely associated
with or simulating ground, and such structure being connected
to the terminal of the signal receiver or source opposing the active
antenna terminal (i.e., having
the signal receiver or source interposed between the active antenna
and this structure), for establishing a reference
potential level for operating the active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
847 | .. Insulated from or capacity coupled to ground: |
This subclass is indented under subclass 846. Subject matter wherein the structure most closely associated
with ground is insulated from or capacitively coupled to the natural ground
to aid in the function of the natural ground, particularly
where variations or limitations of the characteristics of the natural ground
interfere with its proper function.
| |||
848 | .. Artificial or substitute grounds (e.g., ground planes): |
This subclass is indented under subclass 846. Subject matter wherein the grounding structure for the antenna
includes conductive structure used in place of the earth and which
grounding structure is distinct from the earth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
849 | .. Modified natural grounds: |
This subclass is indented under subclass 846. Subject matter wherein the natural earth ground is modified
by the addition of structure or material in direct contact with
or within the earth to modify or maintain the radiation reflecting
or absorbing characteristics or electrical conducting properties
of the natural ground.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
850 | . With coupling network or impedance in the leadin: |
This subclass is indented under subclass 700. Subject matter wherein an active antenna is combined with
a passive network (which may be resistive, inductive, or
capacitive or any combination thereof) for transmitting
the signal energy between the active antenna and a source or receiver
of such signal energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||
851 | .. With radiation suppressor (e.g., shield): |
This subclass is indented under subclass 850. Subject matter wherein the coupling network, or
the leadin associated with the coupling network includes structure
or is arranged for minimizing undesired radiation effects to or
from the coupling network or the leadin.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||
852 | .. Plural path with impedance matching: |
This subclass is indented under subclass 850. Subject matter including a plurality of interrelated signal
paths of which the passive coupling network is at least a part, and
wherein the circuit elements of this arrangement are positioned
and proportioned to reduce wave reflections arising from the interrelation
of the signal paths.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
853 | .. With plural antennas: |
This subclass is indented under subclass 850. Subject matter including a plurality of antennas and a passive
coupling network or a combination of such networks, the
antennas being directly connected to such network or networks.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
855 | ... Loop antennas: |
This subclass is indented under subclass 853. Subject matter wherein the antennas are of the loop type
as defined in subclass 866, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
856 | .. Antenna forms transformer primary or secondary: |
This subclass is indented under subclass 850. Subject matter wherein the active antenna forms the secondary
or primary winding of a transformer magnetically coupled from a
primary or to a secondary winding for connecting from or to a signal
source or receiver, respectively.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
857 | .. Coupling at spaced points on antenna: |
This subclass is indented under subclass 850. Subject matter wherein the coupling network includes a plurality
of electrical paths, which may include a balanced path, connected
to physically spaced points on the active portion of the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
858 | .. Coupled to plural leadins: |
This subclass is indented under subclass 850. Subject matter wherein the passive network has one termination
to which an antenna is connected, and has in addition a
plurality of distinct terminations, adapted to be connected
to a plurality of transmitters and/or receivers; the coupling
network providing a branched electrical path from the antenna termination
to the other terminations.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
859 | .. Balanced to unbalanced circuit: |
This subclass is indented under subclass 850. Subject matter wherein the passive coupling network includes
four terminals, one pair of which are for connection to
the antenna and the other pair for connection to a source or receiver of
signal energy; the network impedance across one pair of
terminals being symmetrical and the network impedance across the
other pair of terminals being unsymmetrical with respect to a given
potential plane (e.g., ground), these impedances
being effective to convert symmetrical potential applied at the
symmetrical pair of terminals to unsymmetrical potential at the other
pair of terminals or vice versa.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
860 | .. Impedance matching network: |
This subclass is indented under subclass 850. Subject matter wherein the passive coupling network includes
one or more impedance elements constructed or proportioned to substantially
eliminate the reflected wave energy between the antenna and the
receiver or signal energy source, caused by impedance differences.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
861 | ... Adjustable: |
This subclass is indented under subclass 860. Subject matter wherein at least one of the impedance elements
has an adjustable electrical characteristic.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
862 | ... Including long line element: |
This subclass is indented under subclass 860. Subject matter in which at least one of the elements of
the impedance matching network has distributed electrical parameters.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
863 | .... Tapered: |
This subclass is indented under subclass 862. Subject matter wherein the distributed parameter electrical
element of the impedance matching network lies along the path of
wave propagation through the network and has a physical dimension
progressively increasing or decreasing along the path of propagation
to result in a corresponding change in electrical parameters of
the distributed parameter element.
SEE OR SEARCH CLASS:
| |||
864 | .... Quarter-wave transformer: |
This subclass is indented under subclass 862. Subject matter wherein the impedance matching network element
having distributed electrical parameters lies along the path of
wave propagation through the network and is an odd integral number (including
unity) of quarter-wave lengths long.
SEE OR SEARCH CLASS:
| |||
865 | .. Balanced coupling network to balanced antenna: |
This subclass is indented under subclass 850. Subject matter wherein the coupling network and antenna
are electrically balanced.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
866 | . Loop type: |
This subclass is indented under subclass 700. Subject matter including a coil of one or more turns adapted
to be connected at its ends to a pair of lead-in terminals, and
further adapted to establish in or receive from space radio wave energy
together with a frame for establishing a particular shape or pattern
of shapes for the coil, or the coil has sufficient rigidity
to establish a shape without the frame.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||
867 | .. Plural; plural or tapped coils: |
This subclass is indented under subclass 866. Subject matter including a plurality of distinct coils or
windings, or including one or more taps on a coil or winding
to vary the effective number of coil or winding turns; or
including a plurality of loop type antennas as defined in subclass
866 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
868 | .. Adjustable configuration, area or coil length: |
This subclass is indented under subclass 866. Subject matter wherein a coil or winding and/or
the frame of a single loop type antenna is formed of flexible or
relatively movable parts to permit change in the shape, area, or
length of the coil or winding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
869 | .. With rotatable support: |
This subclass is indented under subclass 866. Subject matter wherein a support for the loop antenna is
provided, which permits the antenna to be rotated about
at least one axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
870 | .. With connector or terminals: |
This subclass is indented under subclass 866. Subject matter wherein the loop type antenna is combined
with an electrical connector or terminals whereby the winding of
the loop may be connected or coupled to other apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
871 | .. With collapsible or foldable frame: |
This subclass is indented under subclass 866. Subject matter wherein the frame is composed of relatively
movable parts or is of flexible material so that the loop may be
folded or collapsed to occupy less space as when it is not in use.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
872 | . With housing or protective covering: |
This subclass is indented under subclass 700. Subject matter wherein a unitary covering or housing is
provided which substantially surrounds the antenna in operation, and
which freely passes radio waves so as not to interfere materially
with the transmission or reception of the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||
873 | .. Antenna embedded, potted, or coated: |
This subclass is indented under subclass 872. Subject matter wherein the antenna is embedded or potted
in, or coated by a protective cover or support.
SEE OR SEARCH CLASS:
| |||||||
874 | . Mast or tower type: |
This subclass is indented under subclass 700. Subject matter including a tower or mast which transmits
or receives radio waves; the tower or mast having structure
which facilitates this transmission or reception of radio waves, or
the tower or mast serving, in addition, as a support for
other radio wave radiating or receiving structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
875 | .. Sectional: |
This subclass is indented under subclass 874. Subject matter wherein the antenna mast or tower is composed
of multiple discrete vertical sections.
SEE OR SEARCH CLASS:
| |||
876 | . Switching between antennas and lines: |
This subclass is indented under subclass 700. Subject matter including an antenna and a switch for electrically
connecting the antenna selectively to two or more lines, or
including two or more antennas and a switch for connecting a line
selectively to these antennas, or including a plurality
of antennas and a switch for making selective connections among
these antennas and a plurality of lines.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||
877 | . With reel for antenna: |
This subclass is indented under subclass 700. Antennas together with a reel on which the antenna may be
wound.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
878 | . With support for antenna, reflector or director: |
This subclass is indented under subclass 700. Antennas including structure for maintaining the antennas
or parts thereof in a fixed position or path of movement (adjustable) with
respect to some other body or the earth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||
879 | .. For plural separate antennas: |
This subclass is indented under subclass 878. Subject matter wherein the support is peculiarly adapted
to support two or more separate and distinct antennas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
880 | .. Adjustable or collapsible support: |
This subclass is indented under subclass 878. Subject matter wherein the support is composed of multiple
parts which are relatively movable or adapted to receive the antenna
to permit adjustment, collapse, or knock-down
of the support and/or the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||
881 | ... Foldable: |
This subclass is indented under subclass 880. Subject matter wherein the support is composed of multiple
parts which are so joined together that the parts have different
relative positions in use and non-use to permit the antenna
to be folded into a more compact space when not in use.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
882 | ... Pivoted or rotatable: |
This subclass is indented under subclass 880. Subject matter wherein the support has parts relatively
pivoted or rotatable to permit the antenna mounted on one of the
parts to be pivoted or rotated, or the support receives
the antenna in pivoted or rotatable relation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||
883 | ... Telescoping: |
This subclass is indented under subclass 880. Subject matter wherein the support is constructed of multiple
sections capable of sliding motion within each other to be extensible
or retractable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
884 | .. Plural wire transmission line or wave guide as support: |
This subclass is indented under subclass 878. Subject matter wherein the support for the antenna also
constitutes a transmission line, such as a coaxial line
or wave guide, for feeding the signal energy to or from
the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
885 | .. Stress distributing or static discharging means for support: |
This subclass is indented under subclass 878. Subject matter combined with means to modify the electrical
characteristics of the support.
SEE OR SEARCH CLASS:
| |||||
886 | .. Horizontally suspended between poles or standards: |
This subclass is indented under subclass 878. Subject matter wherein the support includes two or more
spaced apart poles, standards, or other upright
members which maintain an antenna or antenna component therebetween
in a substantially horizontal and elevated position.
SEE OR SEARCH CLASS:
| |||||||
887 | .. Streamline-shaped support: |
This subclass is indented under subclass 878. Subject matter where the support for the antenna or reflector
has a stream-line configuration to permit an unbroken flow
of fluid past the support free from turbulence and with the least
resistance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
888 | .. For supporting rod-like end portion of antenna: |
This subclass is indented under subclass 878. Subject matter wherein the supported antenna has a rod-like
end portion, and the support is peculiarly adapted to engage
this rod-like end portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
889 | ... Rod retractible into support: |
This subclass is indented under subclass 888. Subject matter wherein the rod type antenna is retractable
into the end supporting means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
890 | .. Antenna on post, standard or tower: |
This subclass is indented under subclass 878. Subject matter wherein the support includes a post, standard
or tower extending vertically to maintain the antenna or component
thereof in an elevated position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
891 | ... Antenna along length of post: |
This subclass is indented under subclass 890. Subject matter wherein the post, standard or tower
has an antenna wire extending along its length, and constitutes
the sole support for the wire.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
892 | .. Antenna on bracket: |
This subclass is indented under subclass 878. Subject matter wherein the support is an overhanging structure
attached to and projecting from some body such as a wall or post
and engages the antenna or a component thereof outside the body, and
is laterally offset from or suspended from the body to maintain
the antenna or component in a fixed position or path of movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
893 | . Plural antennas: |
This subclass is indented under subclass 700. Combinations of two or more antennas and not specially provided
for above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||||||||||
894 | . With signal, indicator or alarm: |
This subclass is indented under subclass 700. Antennas having a signal, indicator or alarm responsive
to a condition of the antenna or its components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
895 | . Spiral or helical type: |
This subclass is indented under subclass 700. Subject matter wherein the antenna includes a wound conductor, and
the winding advances in a single plane (spiral), or
over a surface of a solid such as cylinder (helix) or
sphere.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
896 | . Rods or wire form cage or hollow post: |
This subclass is indented under subclass 700. Subject matter wherein the antenna is formed of conductive
rods, wires or mesh screens enclosing a space and wherein
such rods, wires or screens are connected together galvanically to
form a single electrical mass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
897 | . Mesh, woven, braided or multiple strip: |
This subclass is indented under subclass 700. Subject matter wherein the antenna is formed of conductive
strips or strands in mesh, braided, or woven form, or
interwoven with non-conductor strips or strands, or
wherein the antenna is formed of multiple conductive strips in sheet
or planar form not provided for elsewhere.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
898 | . Hollow metallic body: |
This subclass is indented under subclass 700. Subject matter wherein a substantial portion of the active
antenna is hollow and of metal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
899 | . Having area increasing means (e.g., spiniferous, metal ball on top): |
This subclass is indented under subclass 700. Subject matter wherein the antenna is so formed as to present
a larger surface to the radio wave transmitting medium; or
wherein additional elements are combined with the antenna for increasing
the surface presented to the radio wave propagating medium; or wherein
elements are provided which are adapted to be electrically connected
to the antenna to increase the surface presented to the radio wave
propagating medium.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||
900 | . Rod type: |
This subclass is indented under subclass 700. Subject matter wherein the antenna is of substantially fixed
or stiff elongated form of no claimed significant electrical length.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
901 | .. Telescoping: |
This subclass is indented under subclass 900. Subject matter wherein the elongated antenna is composed
of multiple sections capable of sliding motion within each other
to be extensible or retractable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
902 | ... Fluid pressure actuated: |
This subclass is indented under subclass 901. Subject matter including structure which provides adjustment
of the telescoping position of the antenna sections in response
to change in the pressure of a fluid.
SEE OR SEARCH CLASS:
| |||||||||||
903 | ... Flexible rod actuated: |
This subclass is indented under subclass 901. Subject matter including a flexible rod for adjusting the
telescoping position of the antenna sections in response to movement
of the rod.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
904 | . Combined: |
This subclass is indented under subclass 700. Subject matter wherein the antenna is combined with other
structure which perfects it, and which combinations are
not provided for above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
905 | .. With transmission line: |
This subclass is indented under subclass 904. Subject matter wherein the other structure includes a transmission
line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
906 | .. With electrical connector: |
This subclass is indented under subclass 904. Subject matter combined with electrical connector structure
for connecting an antenna to transmission or feed lines or other
apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
907 | . Antenna components: |
This subclass is indented under subclass 700. Components and elements not constituting a complete antenna
which are limited to use in antennas and which are not provided
for in any preceding subclass or in any other class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
908 | .. Active antenna component of particular shape: |
This subclass is indented under subclass 907. Subject matter wherein the conductor or other component
of the active antenna has a distinctive contour or shape.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||
909 | .. Refracting means and radio wave energy filters (e.g., lenses and polarizers): |
This subclass is indented under subclass 907. Subject matter including components which transmit therethrough
a radio wave which impinges thereon from space and returns the wave
to space after it has passed through and which modify the wave in
transmission therethrough usually by delaying or accelerating some
portions of the wave more than others, as follows: (a) alters
the direction of propagation of the wave, as by refraction; (b) brings
the wave front to a focus or converts a plane wave front to a spherical
wave front or vice versa (c) changes the type
of polarization, e.g., converts a
plane polarized wave to a circularly polarized wave, or
rotates the plane of polarization; (d) filters
one or more polarization components (e) filters
one or more frequency components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||
910 | ... Zoned type: |
This subclass is indented under subclass 909. Subject matter wherein the component presents to the wave
front a propagating medium whose surface offers abrupt changes in
propagating characteristic.
| |||
911R | ... Dielectric type: |
This subclass is indented under subclass 909. Subject matter wherein the component includes in the propagating
path a material having a significant dielectric characteristic.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
911L | .... Luneberg type |
This subclass has no definition. | |
912 | .. Reflector or director: |
This subclass is indented under subclass 907. Subject matter wherein the component constitutes a conductive
structure (usually metallic) which is adapted
to return or to reradiate into free space a substantial portion
of the impinging radio wave energy coming from or going to an associated
active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
913 | ... With impedance: |
This subclass is indented under subclass 912. Subject matter wherein the reflector or director is combined
with an impedance connected or coupled to the reflector or director.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
914 | ... Diverse curvature: |
This subclass is indented under subclass 912. Subject matter wherein different portions of the reflector or director surface have different curvatures, e.g., paraboloidal, plane, spherical or cylindrical. | |
915 | ... Collapsible, foldable or adjustable: |
This subclass is indented under subclass 912. Subject matter wherein the reflector or director is composed
of relatively movable parts for collapsing, folding or
adjusting the reflector or director; so that it may occupy
a smaller space or the curvature of its surface may be changed, or
its electrical characteristics may be varied.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
916 | ... Made of detachable parts: |
This subclass is indented under subclass 912. Subject matter wherein the reflector or director is composed
of parts which may readily be assembled or disassembled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
700MS | . Microstrip |
This subclass has no definition. | |
FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
This subclass has no definition. | |
DIG1 | WITH VIBRATION DAMPER OR WIND CATCHER |
This subclass has no definition. | |
DIG2 | SATELLITE-MOUNTED ANTENNA |
This subclass has no definition. | |