This is the class for structure wherein operation of an engine* either
regulates or is regulated by the operation of a clutch*,
a gear transmission*, or a brake*.
SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
This class was formed from patents in previously existing
Classes 74 and 192 related to interrelated controls between an engine
and a transmission, clutch, or brake. Therefore the line between
this and other classes is the same as between Class 74 and Class
192 and other classes.
Electricity: Motive
Power Systems, especially
subclasses 3+ for the combination of a significant electrical
motor and a load device; and see the Class Definition, Load Device
Driven By The Motor (Including Power, Motion, Force, or Torque Transmitting
Devices) for a statement of the line between the classes.
Data Processing: Vehicles,
Navigation, and Relative Location,
subclasses 51+ for vehicle transmission control including significant
calculations but absent specific transmission control structure.
SECTION IV - GLOSSARY
The following glossary will define words or phrases used
in the class and subclass definitions and are identified by an asterisk
which appears after the word, or in the instance of a phrase, after
the last word of the phrase:
BRAKE:
Mechanism operable to stop a rotatable part with respect to
a stationary part. If a brake is used as a part of transmission
(i.e., in a planetary transmission to change gear ratio or direction),
such a brake is classified with transmission control rather than
brake control.
CLUTCH:
Mechanism operable to couple two relatively rotatable parts
together for common rotation or to uncouple such parts. The clutch* as
used in the definition of this class or subclasses is a clutch* that
may be used without a gear transmission* or in advance
of or behind a gear transmission* in a power train. If
a clutch is used as a part of transmission (i.e., in a planetary
transmission to change gear ratio or direction), such a clutch is
classified with transmission control rather than clutch control.
ENGINE:
A primary source of rotational energy.
GEARING POWER PATH:
Mechanism including relatively rotatable bodies having engaging
surfaces or which are drivingly connected by a belt or chain whereby
a rotatable body will impart to or receive rotary motion or power
from another rotary body by rolling contact.
GEAR TRANSMISSION:
Mechanism including at least one gearing power path*, said
mechanism being capable of changing the speed ratio* or
rotational direction between a mechanical output of an engine* and
a load*.
INPUT SHAFT:
Mechanism that receives rotational motion from an engine* and
transfers such motion to a gear transmission* or to a clutch*.
LOAD:
Mechanism that receives rotational motion from a gear transmission* or
clutch* to do useful work.
OUTPUT SHAFT:
Mechanism that receives rotational motion from a gear transmission* or
clutch* and transfers such motion to a load*.
SPEED RATIO:
Rotational velocity of an output shaft* divided
by the rotational velocity of an input shaft.*
This subclass is indented under the class definition. Subject matter wherein a gear transmission* is provided to drive
parallel vehicle wheels at different relative speeds to effect turning
of the vehicle and such means either regulates or is regulated by an
engine*.
This subclass is indented under subclass 3. Subject matter wherein means is provided to regulate the operation of a brake*,
and such regulation is interrelated with that of an engine*.
This subclass is indented under subclass 3. Subject matter wherein means is provided to regulate the operation of a clutch* and
such regulation is interrelated with that of an engine*.
This subclass is indented under subclass 2. Subject matter wherein means is provided to regulate the operation of a clutch* and
such regulation is interrelated with that of an engine*.
Electricity: Motive
Power Systems,
subclasses 9+ for the combination of electric motor and motion
or power transmitting mechanism driven thereby. See section I,E,6,
of the main class definition of Class 318 for a statement of the
line.
This subclass is indented under subclass 7. Subject matter wherein means are provided to regulate a clutch* and such
means affects or is affected by the engine* operation.
This subclass is indented under subclass 8. Subject matter wherein a means to apply a brake* is provided and
such means affects or is affected by the engine* or clutch* control.
This subclass is indented under subclass 8. Subject matter wherein the power to the engine* is automatically
disconnected after a predetermined amount of motion.
This subclass is indented under subclass 7. Subject matter wherein the electric engine* is connected to a
load* through a gear transmission* and the operation of
the gear transmission* regulates or is regulated by the
operation of the engine.
This subclass is indented under subclass 15. Subject matter wherein the regulation of the engine* or gear transmission* takes
place as the load* reaches a predetermined position.
This subclass is indented under subclass 15. Subject matter wherein the gear transmission* is regulated by
changing the position of the engine* with relation to its
support.
This subclass is indented under subclass 15. Subject matter wherein the regulation of the engine* includes
changing the direction of rotation of a shaft driven by the engine.
This subclass is indented under subclass 15. Subject matter wherein the operation of the engine* is regulated
in response to a variable parameter of the gear transmission* or
load*.
This subclass is indented under subclass 7. Subject matter wherein regulating means for the engine* is interrelated with
regulatory means for a brake* such that (a) when the brake* is
in a force applying position to prevent movement, the provision
of driving energy to the engine* is discontinued and (b)
when the brake* is removed from a force applying position,
driving energy to the engine* is provided.
This subclass is indented under subclass 21. Subject matter wherein the regulating means for the brake* comprises structure
which converts rotational motion into translational motion by sliding
engagement with an eccentric member.
This subclass is indented under subclass 7. Subject matter wherein regulating means is provided to govern operation
of a brake*, and wherein movement of the brake regulating
means to a force applying position interrupts flow of electricity
to the engine.*
This subclass is indented under subclass 24. Subject matter wherein the regulating means uses electric current to move the
brake* to a force applying position.
This subclass is indented under subclass 24. Subject matter wherein the regulating means uses the force of positively
or negatively pressurized liquid or gas to move the brake* to
a force applying position.
This subclass is indented under subclass 7. Subject matter wherein a regulating means for interrelated engine* and brake* control
is operable to alternatively (a) vary an amount of driving energy
provided to the engine* or (b) move the brake* to
a force applying or release position.
This subclass is indented under subclass 27. Subject matter wherein the regulating means for the brake* uses
the force of positively or negatively pressurized liquid or gas
to move the brake* to a force applying position.
This subclass is indented under subclass 27. Subject matter wherein the regulating means for the brake* uses
electric current to move the brake* to a force applying position.
This subclass is indented under the class definition. Subject matter wherein the engine* is of the type comprising a rotatable
shaft carrying blades, which shaft is caused to rotate by the reaction
on its blades of a moving gas generated by the burning of fuel.
This subclass is indented under the class definition. Subject matter wherein the engine* is an internal combustion engine
and includes means to increase the pressure of the air supply thereto.
This subclass is indented under the class definition. Subject matter wherein the operation of the engine* regulates or
is regulated by the operation of a gear transmission*.
This subclass is indented under subclass 34. Subject matter wherein the gear transmission* is of the planetary-type
having at least three relatively rotatable elements, one element
constituting an input and the other two outputs, such that a change
in speed in one of the outputs has a direct effect on the speed of
the other output.
Motor Vehicles,
subclass 197 for wheel slip control during vehicle acceleration
by reducing power to wheel; and subclasses 248+ for four-wheel
drive with differential, where there is significant vehicle structure.
Planetary Gear Transmission
Systems or Components, for planetary gear transmission, per se, and particularly
subclasses 220+ for differential transmissions.
This subclass is indented under subclass 34. Subject matter wherein the gear transmission* is of a type having
a steplessly changeable speed ratio* and includes toothless
gearing that transmits force by frictional contact.
This subclass is indented under subclass 37. Subject matter wherein the continuously variable friction transmission
is combined with a hydraulic or pneumatic torque transmitting means.
This subclass is indented under subclass 37. Subject matter wherein the continuously variable friction transmission
is combined with a means to regulate a clutch*.
This subclass is indented under subclass 37. Subject matter wherein the continuously variable friction transmission
is combined with a means to regulate a brake*.
This subclass is indented under subclass 37. Subject matter wherein the continuously variable friction transmission
is combined with a gear transmission* of a different type
and the control of one gear transmission* affects the control
of the other gear transmission*.
This subclass is indented under subclass 37. Subject matter wherein the regulation of the engine* and gear
transmission* result in a constant velocity of the transmission
output shaft*.
This subclass is indented under subclass 37. Subject matter wherein the gear transmission* is regulated, at
least in part, by a device providing a memory of desirable engine* performance.
This subclass is indented under subclass 37. Subject matter wherein the continuously variable friction transmission comprises
an endless flexible band entrained about parallel pulleys.
This subclass is indented under subclass 44. Subject matter wherein the belt drive is regulated by a device operated
by pressure of a liquid or gas, and the regulation affects or is
affected by the operation of an engine*.
This subclass is indented under subclass 45. Subject matter wherein the regulation of the fluid pressure is effective
to change the transmission speed ratio*.
This subclass is indented under subclass 46. Subject matter wherein the speed ratio* change is in response
to sensing that the load* is attempting to drive the engine*.
This subclass is indented under subclass 48. Subject matter wherein the electrical regulation is by pulse width modulation
of on-off signals to the valve.
This subclass is indented under subclass 37. Subject matter wherein the steplessly variable friction transmission is
regulated by a device operated by pressure of a liquid or gas.
This subclass is indented under subclass 34. Subject matter wherein either the weight or momentum of a fluid mass or
a fluids" resistance to flow is effective to retard the
rotation of an element of a planetary transmission.
(1)
Note. See the definition of Class 475 for definition of a
planetary gear set.
This subclass is indented under subclass 34. Subject matter wherein the combination of a hydraulic or pneumatic torque
transmitting means and a gear transmission* is interrelated
with control of the engine*.
This subclass is indented under subclass 52. Subject matter wherein the fluid torque transmitting means is made up of at
least two rotary coaxial vaned elements forming a fluid filled torus,
one of the elements being an input element and the other an output element.
This subclass is indented under subclass 53. Subject matter wherein the engine* is regulated by a control signal
from the fluid torque transmitting means or the gear transmission*.
This subclass is indented under subclass 53. Subject matter wherein the gear transmission* comprises intermeshing gears
on parallel shafts and wherein the axes of the shafts are fixed.
(1)
Note. This is to be distinguished from planetary gearing
wherein an axis of a planetary gear is not fixed; but, instead, it
rotates about another axis.
This subclass is indented under subclass 55. Subject matter wherein there is provided means to stop the output element
of the fluid torque transmitting means.
This subclass is indented under subclass 55. Subject matter wherein a clutch* is provided to connect the input
and output elements of the fluid torque transmitting means or connect
the input element to the gear transmission*, bypassing
the fluid torque transmitting means.
This subclass is indented under subclass 55. Subject matter wherein the operation of the fluid torque transmitting means
is regulated or a condition thereof is effective to regulate the
gear transmission*.
This subclass is indented under subclass 53. Subject matter wherein means is provided to stop a part of the gear transmission* or
load from rotation and such stoppage does not directly change a
gear speed ratio*.
(1)
Note. A nonratio brake is one that does not directly effect
a ratio change; e.g, anticreep, parking brake, synchronization
brake, etc.
This subclass is indented under subclass 53. Subject matter wherein the gear transmission* is controlled by
a condition of the fluid torque transmitting means.
(1)
Note. The gear transmission may be controlled, for example,
by regulating a clutch* associated with the fluid drive,
a ratio changing clutch* or brake*, or the system
pressure of the gear transmission* control system.
Machine Element or
Mechanism,
subclass 731.1 for the combination of a fluid drive and nonplanetary
gearing with a condition responsive control but no engine control.
Planetary Gear Transmission
Systems or Components,
subclass 42 , 49, and 61+ for the combination of
planetary gearing and fluid drive where a gear transmission
is controlled by a condition of the fluid drive, but without
an engine control.
This subclass is indented under subclass 53. Subject matter wherein a clutch* is operable to connect the input
and output elements of the fluid torque transmitting means or to
connect the input element thereof to the gear transmission*,
bypassing the said fluid means.
(1)
Note. Where the clutch* control is responsive to
a condition of the fluid drive see subclass 61.
This subclass is indented under subclass 62. Subject matter wherein the clutch* is regulated during a change
in speed ratio* of the gear transmission*.
This subclass is indented under subclass 62. Subject matter wherein operation of the clutch* is controlled
in response to means detecting velocity or change in velocity of
a part associated therewith.
This subclass is indented under subclass 53. Subject matter wherein means is provided to regulate the angle or position
of the vane(s) within the torus to change the speed and direction
of the fluid therein.
This subclass is indented under subclass 53. Subject matter wherein the fluid torque transmitting means may be emptied
or filled for the purpose of changing the amount of slippage between
the elements.
(1)
Note. These devices are often used in place of a friction
clutch*, for speed ratio* control.
Planetary Gear Transmission
Systems or Components,
subclass 34 , 42, 50, 64, and 69 for planetary gearing and fill
and empty-type fluid units in the absence of an engine control.
This subclass is indented under subclass 52. Subject matter wherein the speed ratio of the fluid torque transmitting means
is regulated by the engine*.
This subclass is indented under subclass 68. Subject matter wherein there is included a gear transmission* of
the planetary type which is also regulated by the engine*.
(1)
Note. See Class 475 for the definition of, and structure
involving planetary transmission, per se.
This subclass is indented under subclass 34. Subject matter wherein a means is provided to regulate a clutch* and said
regulation is interrelated with that of the engine* or
gear transmission*.
This subclass is indented under subclass 70. Subject matter wherein in addition to the interrelated engine*,
gear transmission* and clutch* controls, means
is provided to regulate a brake*, and such brake regulating
means affects or is affected by at least one of the other controls.
This subclass is indented under subclass 71. Subject matter wherein the heat level of or surrounding the engine*,
gear transmission*, clutch*, or brake* is
effective as a control signal.
This subclass is indented under subclass 70. Subject matter wherein means are provided to sense a heat level and
means responsive to such sensing are provided to regulate the
operation of the engine*, gear transmission*,
or clutch*.
This subclass is indented under subclass 70. Subject matter wherein means are provided to regulate the operation of a
clutch*, an engine*, and a gear transmission*.
Data Processing: Vehicles,
Navigation, and Relative Location,
subclasses 51+ for vehicle transmission control including significant
calculations but absent specific transmission structure.
This subclass is indented under subclass 70. Subject matter wherein the gear transmission* control regulates
the operation of a clutch* and an engine*.
This subclass is indented under subclass 70. Subject matter wherein operation of the engine* or gear transmission* regulates
the operation of a clutch*.
This subclass is indented under subclass 70. Subject matter wherein operation of the clutch* or gear transmission* regulates
the operation of an engine*.
This subclass is indented under subclass 34. Subject matter wherein means are provided to regulate a brake* and operation
of said brake regulating mean is interrelated with the operation
of the engine* or gear transmission*.
This subclass is indented under subclass 92. Subject matter wherein, in a vehicle drive, means are provided to prevent the
vehicle from moving forward when the engine* is at idle
and the vehicle is stopped.
This subclass is indented under subclass 94. Subject matter wherein the gear transmission* is controlled by
fluid and the means to or regulate the brake* affects the force
exerted by the fluid.
This subclass is indented under subclass 92. Subject matter wherein the operation of either the engine*, gear
transmission*, or brake* is prevented by the
operation of one of the others.
This subclass is indented under subclass 34. Subject matter wherein means are provided to sense (1) a condition or change
in condition of the atmosphere surrounding the engine or gear transmission* or (2)
the presence or absence of indicative means on a prescribed record
or (3) a signal from a source not physically connected to the engine*, gear
transmission* or load* or (4) the heat level of
a part of the engine or gear transmission*; and, in response
to the sensing, regulate the operation of the engine* or
gear transmission*.
This subclass is indented under subclass 97. Subject matter wherein means are provided to sense a heat level, and means
responsive to such sensing regulates the operation of the engine* or
gear transmission*.
This subclass is indented under subclass 34. Subject matter wherein the engine* is an internal combustion engine
and regulation of the engine* includes means to regulate
the discharge of undesirable engine waste gas constituents.
This subclass is indented under subclass 34. Subject matter wherein the engine* is of a type requiring periodic
ignition for continued operation and the means to regulate the operation
of the engine includes means to regulate or interrupt the periodic
ignition to enable a gear transmission* speed ratio* change.
This subclass is indented under subclass 101. Subject matter wherein the ignition takes place at a particular time with respect
to the operation of the engine* parts and the regulation
of the engine* includes regulation of the ignition timing.
This subclass is indented under subclass 101. Subject matter wherein the ignition is interrupted for a predetermined
time regardless of whether the speed ratio* change is completed
or not.
This subclass is indented under subclass 101. Subject matter wherein the engine* is an air breathing engine* and
means are provided to sense the pressure at the intake of the engine
and in response thereto regulate the interruption of the periodic
ignition.
This subclass is indented under subclass 101. Subject matter wherein the interruption of the ignition is initiated by
placing a manual control for energy input to the engine* in
a predetermined position.
This subclass is indented under subclass 105. Subject matter wherein means is provided to sense a condition or change
in condition and in response thereto prevent the manual control
from initiating the interruption of the ignition.
This subclass is indented under subclass 34. Subject matter wherein means is provided to regulate a supply of energy
to the engine* and such regulation is affected by the
operation of the gear transmission*.
This subclass is indented under subclass 107. Subject matter wherein the engine* is regulated such that a load* shaft
of the gear transmission* remains at an unchanging velocity.
This subclass is indented under subclass 107. Subject matter wherein energy input supplied to the engine* is
modified by decreasing the supply while the gear transmission* speed
ratio* is being changed.
This subclass is indented under subclass 107. Subject matter wherein energy input supplied to the engine is regulated by
a condition or change of condition of an output shaft* of
the gear transmission*.
This subclass is indented under subclass 107. Subject matter wherein means are provided to sense the selection of a particular
gear transmission* speed ratio*, and, in response
to such sensing, means are provided to affect the energy input supplied
to the engine*.
This subclass is indented under subclass 111. Subject matter wherein the means to sense the selection is capable of disengaging
all speed ratios*, and, in response thereto, is effective
to decrease energy input to the engine* to a minimum while
allowing the engine* to continue operating.
This subclass is indented under subclass 112. Subject matter wherein energy supply to the engine* is changeable while
all gear speed ratios* are disengaged.
This subclass is indented under subclass 34. Subject matter wherein in a vehicle drive, means are provided to prevent the
vehicle from moving forward when the engine is at idle and the vehicle
is stopped.
This subclass is indented under subclass 34. Subject matter wherein the operation of the gear transmission* is
regulated by the operation of the engine*.
This subclass is indented under subclass 115. Subject matter wherein a manual means is movable to a first position to effect
engagement of a speed ratio* of the gear transmission* or
to a second position to effect disengagement of all ratios and
wherein means is provided to limit impulsive forces within the
gear transmission* when the gear transmission* is
shifted between first and second positions.
This subclass is indented under subclass 116. Subject matter wherein the gear transmission* is regulated by
pumped fluid and the said shift affects the force exerted by the
fluid.
This subclass is indented under subclass 115. Subject matter wherein a speed ratio* change is controlled in
response to sensing that the load* is attempting to drive
the engine.
This subclass is indented under subclass 115. Subject matter wherein means for the regulation of the gear transmission* includes
a signal responsive to the rate of change of velocity with respect
to time of a gear transmission* part or a load* driven thereby.
This subclass is indented under subclass 115. Subject matter wherein the engine* is an air breathing, fuel burning
type and the gear transmission* is regulated by air pressure
at the intake of the engine or by a means to feed the fuel.
This subclass is indented under subclass 121. Subject matter wherein a manual means is provided to choose a gear speed
ratio* of the gear transmission* but the change
to said ratio is not effected until a manual control for fuel to
the engine* is placed in a particular position.
This subclass is indented under subclass 121. Subject matter wherein the gear transmission* uses toothed positively engaging
elements to change from one speed ratio* to another, and
including the sliding of a gear on a shaft to effect ratio change.
This subclass is indented under subclass 123. Subject matter wherein means are provided to equalize the speed of the parts
of the engaging elements before they are engaged.
This subclass is indented under subclass 121. Subject matter wherein means are provided to prohibit the changing of the
speed ratio* of the gear transmission* when such
change may harm the engine* or gear transmission.
This subclass is indented under subclass 125. Subject matter wherein the speed ratio* change that is prohibited
is that which would change the direction of rotation of a gear transmission* load* shaft.
This subclass is indented under subclass 121. Subject matter wherein a reciprocating valve is effective to trigger the actuation
of a speed ratio* change in the gear transmission* said
valve being regulated by a signal responsive to the input manifold
pressure or engine fuel control.
(1)
Note. Usually the valve is controlled by both an engine signal
and vehicle speed responsive signal.
This subclass is indented under subclass 127. Subject matter wherein the regulation of the valve is such that should
a given signal level be necessary to move the valve in one direction,
movement in a second direction must overcome a greater signal level.
This subclass is indented under subclass 127. Subject matter wherein two valves are regulated by signals responsive to input
manifold pressure or engine* fuel control to trigger actuation
of two speed ratio* changes.
Data Processing: Vehicles,
Navigation, and Relative Location,
subclasses 51+ for vehicle transmission control including significant
calculations but absent specific transmission structures.
This subclass is indented under subclass 131. Subject matter wherein significance is attributed to means for changing from
a high speed ratio* to a lower speed ratio*.
This subclass is indented under subclass 132. Subject matter wherein a forced downshift is effected by moving a manual
engine* fuel control to a predetermined position.
This subclass is indented under subclass 131. Subject matter wherein significance is attributed to a manual valve movable
to choose various gear speed ratios* of the gear transmission* and
movable to a predetermined position to prevent normal operation
of a shift valve.
This subclass is indented under subclass 130. Subject matter wherein significance is attributed to means for changing from
a high speed ratio* to a lower speed ratio*.
This subclass is indented under subclass 135. Subject matter wherein a forced downshift is effected by moving a manual
engine* fuel control to a predetermined position.
(1)
Note. See subclass 133 and the notes thereunder for other
accelerator triggered controls.
This subclass is indented under subclass 130. Subject matter wherein significance is attributed to a manual valve movable
to choose various gear speed ratios* of the gear transmission* and
movable to a predetermined position to prevent normal operation
of a shift valve.
Data Processing: Vehicles,
Navigation, and Relative Location,
subclasses 51+ for vehicle transmission control including significant
calculations but absent specific transmission structure.
This subclass is indented under subclass 138. Subject matter wherein significance is attributed to means for changing from
a high speed ratio* to a lower speed ratio*.
This subclass is indented under subclass 127. Subject matter wherein significance is attributed to means for changing from
a high speed ratio* to a lower speed ratio*.
This subclass is indented under subclass 140. Subject matter wherein a forced downshift is effected by moving a manual
engine* fuel control to a predetermined position.
(1)
Note. See subclass 133 and the notes thereunder for other
accelerator triggered controls.
This subclass is indented under subclass 127. Subject matter wherein significance is attributed to a manual valve movable
to choose various gear speed ratios* of the gear transmission* and
movable to a predetermined position to prevent normal operation
of a shift valve.
This subclass is indented under subclass 121. Subject matter wherein a speed ratio* of the gear transmission* is engaged
by a fluid actuated piston forming a movable wall of a chamber and
means is provided to regulate the buildup or release of fluid pressure
in one or more of such chambers.
This subclass is indented under subclass 143. Subject matter wherein significance is attributed to regulating pressure
in the chamber on a shift from a high speed ratio* to a
lower speed ratio*.
This subclass is indented under subclass 144. Subject matter wherein a variable enclosed space is placed in communication
with the chamber to control the buildup or release of fluid in such
chamber.
(1)
Note. Included under this definition are "trimmer" valves
which exhaust pressure in a fluid line until pressure builds up
in an adjoining chamber and shuts off the exhaust.
This subclass is indented under subclass 145. Subject matter wherein control of fluid to or from said chamber is by means
of an electrically operated valve.
Data Processing: Vehicles,
Navigation, and Relative Location,
subclasses 51+ for vehicle transmission control including significant
calculations but absent specific transmission structure.
This subclass is indented under subclass 144. Subject matter wherein the piston is actuated by fluid pressure to engage
a gear speed ratio* and is also actuated by fluid pressure
to disengage the said ratio.
This subclass is indented under subclass 144. Subject matter wherein the regulation of buildup or release of fluid pressure
is controlled by the velocity of a gear transmission* part.
This subclass is indented under subclass 144. Subject matter wherein control of fluid pressure to or from said chamber
is by means of an electrically operated valve.
Data Processing: Vehicles,
Navigation, and Relative Location,
subclasses 51+ for vehicle transmission control including significant
calculations but absent specific transmission structure.
This subclass is indented under subclass 143. Subject matter wherein a variable enclosed space is placed in communication
with the chamber to control the buildup or release of fluid in such
chamber.
(1)
Note. Included under this definition are "trimmer" valves
which exhaust pressure in a fluid line until pressure builds up
in an adjoining chamber and shuts off the exhaust.
This subclass is indented under subclass 150. Subject matter wherein a movable piston functions to vary the capacity of
the accumulator space, and a signal representing input manifold
pressure or engine* fuel control biases the piston to
change the resistance to movement of the piston.
This subclass is indented under subclass 150. Subject matter wherein control of fluid to or from said chamber is by means
of an electrically operated valve.
Data Processing: Vehicles,
Navigation, and Relative Location,
subclasses 51+ for vehicle transmission control including significant
calculations but absent specific transmission structure.
This subclass is indented under subclass 143. Subject matter wherein the piston is actuated by fluid pressure to engage
a gear speed ratio* and is also actuated by fluid pressure
to disengage the said ratio.
This subclass is indented under subclass 143. Subject matter wherein the regulation of buildup or release of fluid pressure
is controlled by the velocity of a gear transmission* part.
This subclass is indented under subclass 143. Subject matter wherein control of fluid pressure to or from the chamber is
by means of an electrically operated valve.
Data Processing: Vehicles,
Navigation, and Relative Location,
subclasses 51+ for vehicle transmission control including significant
calculations but absent specific transmission structure.
This subclass is indented under subclass 121. Subject matter wherein the gear transmission* is controlled by
fluid pressure which is regulated by engine* intake pressure
or means to feed the fuel.
This subclass is indented under subclass 156. Subject matter wherein a pump is the source of fluid pressure and the engine* intake
pressure or fuel feed is effective to control the volumetric capacity
of said pump.
This subclass is indented under subclass 156. Subject matter wherein a pump is the source of fluid pressure and feeds fluid
to a valve effective to regulate said pressure in response to engine* intake
pressure or fuel feed.
This subclass is indented under subclass 160. Subject matter wherein the electric signal is variable and effective to
variably regulate a fluid pressure by pulse width modulation of
on-off signals to the valve.
This subclass is indented under subclass 158. Subject matter wherein the valve is also influenced by means sensing the particular
gear speed ratio* engaged at that time.
This subclass is indented under subclass 34. Subject matter wherein a manual lever is utilized to regulate operation
of a gear transmission* and the lever supports means movable
relative thereto which means is operative to regulate an engine*.
This subclass is indented under the class definition. Subject matter wherein the operation of the engine* regulates or
is regulated by the operation of a clutch*.
This subclass is indented under subclass 166. Subject matter wherein a hydraulic or pneumatic torque transmitting means
is interrelated with clutch* control.
This subclass is indented under subclass 168. Subject matter wherein the clutch control is responsive to a signal derived from
the velocity of a moving part.
This subclass is indented under subclass 170. Subject matter wherein means are provided to control the engine* and such
means is interrelated with clutch* and brake* control.
This subclass is indented under subclass 174. Subject matter wherein the additional parameter is torque experienced by the
load*, and the clutch is disengaged when the torque exceeds
a predetermined valve.
This subclass is indented under subclass 166. Subject matter wherein significant is attributed to timing of movement
of clutch* element during engagement.
This subclass is indented under the class definition. Subject matter wherein operation of the engine* regulates or is regulated
by the operation of a brake*.
This subclass is indented under subclass 182. Subject matter including means to detect a parameter or change in a parameter
and having means responsive thereto to regulate operation of the
engine* or brake*.
This subclass is indented under subclass 182. Subject matter including at least two operationally different and distinct brakes*,
each having a regulation means, and at least one of the brake regulating
means is interrelated with regulating means for the engine*.
This subclass is indented under subclass 182. Subject matter wherein engine* regulating means is operable to
govern the energy input to the engine* and includes mechanism
to set and lock the engine regulating means at a desired position;
combined with apparatus to disengage the setting and locking mechanism
simultaneously with activation of the brake*.
This subclass is indented under subclass 189. Subject matter wherein the setting and locking mechanism is actuated by
a structure using electric current.
This subclass is indented under subclass 190. Subject matter wherein a magnetic attracting force is used to prevent movement
of the engine* regulating means.
This subclass is indented under subclass 189. Subject matter wherein the setting and locking mechanism includes structure
to lock the engine* regulating means against movement and
further includes a device to actuate the locking structure; wherein said
structure and device is operated by force other than fluid pressure.
This subclass is indented under subclass 192. Subject matter wherein said structure or device comprises (a) a cylindrical
bar with a continuous helical rib projecting from the external surface
which is engaged by interfitting projections on a member for transferring
force, (b) a bar with notch or teeth projecting transversely from
a longitudinal surface which is engaged by interfitting projections
on a member for transferring force, or (c) a unidirectionally rotatable
force transmitting member.
This subclass is indented under subclass 182. Subject matter wherein regulating means for the brake* includes
mechanism to set and lock the brake regulating means at a desired
position; combined with apparatus to disengage the setting and locking mechanism
simultaneously with regulation of the engine*.
This subclass is indented under subclass 194. Subject matter including means to detect movement, velocity or rate of change
of velocity, and having an actuator responsive to such detection
to effect operation of the locking mechanism.
This subclass is indented under subclass 195. Subject matter wherein the brake* is regulated by fluid under
pressure flowing through a passage, and the locking mechanism comprises
a fluid restricting device within the passage movable between open, shut,
or partially open positions by structure comprising a ferrous core
moved longitudinally inside a cylindrical coil of wire by magnetic
force generated by flow of electric current in the wire.
This subclass is indented under subclass 197. Subject matter wherein the brake* is regulated by fluid under
pressure flowing through a passage, and the locking mechanism comprises
a fluid restricting device within the passage movable between open, shut,
or partially open positions by structure comprising a ferrous core
moved longitudinally inside a cylindrical coil of wire by magnetic
force generated by flow of electric current in the wire.
This subclass is indented under subclass 182. Subject matter wherein regulating means for the engine* is interrelated with
regulating means for the brake* such that (a) when the
brake* is in a force applying position to prevent movement,
the provision of driving energy to the engine* is discontinued and
(b) when the brake* is removed from a force applying position,
driving energy to the engine* is provided.
This subclass is indented under subclass 199. Subject matter wherein the driving energy for the engine* is a
combustible material which is burned to expand within a combustion
chamber to drive a piston in the chamber.
This subclass is indented under subclass 200. Subject matter wherein the regulating means for the brake* moves
the brake* into an operating position by the action of
fluid flowing through a passage, and the regulating means of the
engine* operates a fluid restricting device in the passage
between open, shut, and partially open positions.
This subclass is indented under subclass 201. Subject matter wherein the fluid within the passage is at a lower pressure than
the environment so that as pressure is selectively removed therefrom
environmental pressure moves the brake* into a force applying
position.
This subclass is indented under subclass 203. Subject matter wherein the engine* is of a type requiring periodic
ignition of a fluid by flow of electric current, and wherein movement
of the brake* to a force applying position produces a discontinuity
in the flow of electric current.
This subclass is indented under subclass 203. Subject matter wherein the engine* is driven by fluid energy,
and wherein movement of the brake* into a force applying position
causes engine* regulating means to reduce or exclude the
quantity of driving fluid supplied to the engine.
This subclass is indented under subclass 205. Subject matter wherein the regulating means of the engine* includes
a drive fluid passage having a restrictor operable between open,
shut, or partially open positions, and wherein movement of an element
of the brake*moves the restrict or from an open to a shut
or partially open position.
This subclass is indented under subclass 205. Subject matter wherein the engine* regulating means increases
or decreases the quantity of driving fluid to the engine*,
and wherein actuation of the brake* prohibits the engine
regulating means from increasing the quantity of driving fluid supplied
to the engine.
This subclass is indented under subclass 182. Subject matter wherein the engine* is driven by fluid energy and
wherein engine regulating means varies the quantity of driving fluid
passing to the engine*, and wherein operation of the regulating
means to reduce the quantity of driving fluid to the engine also
moves the brake* into a force applying position.
This subclass is indented under subclass 182. Subject matter wherein interrelated engine* and brake* regulating means
alternatively (a) varies an amount of driving energy supplied to
the engine and (b) moves the brake* into a force applying
or releasing position.
(1)
Note. The interrelated regulating means usually comprises
(a) single working element moveable by a human operator for alternative
regulation of the engine or the brake; or (b) plural working elements engage
able by a human foot wherein the foot is moveable in more than one
direction for alternative regulation of the engine or of the brake.
This subclass is indented under subclass 209. Subject matter wherein the interrelated engine* and brake* regulating means
are caused to function by engagement with the terminal part of
a human leg; i.e., foot.
This subclass is indented under subclass 210. Subject matter wherein the interrelated engine* and brake* regulating means
comprises working members which are attached to each other and are
independently operated by separate engagement with the foot.
This subclass is indented under subclass 210. Subject matter wherein the interrelated engine* and brake* regulating means
comprises a single member-engaged by the foot, and the member is
alternatively or simultaneously (a) turned about a relatively fixed
axis and (b) moved linearly; i.e., translated.
This subclass is indented under subclass 212. Subject matter wherein the relatively fixed axis is located between the ends
of the member such that either end of the member can be moved about
the axis.
This subclass is indented under subclass 210. Subject matter wherein the interrelated engine* and brake* regulating means
comprises a single member engaged by the foot, which member is alternatively
(a) turned about a first relatively fixed axis and (b) turned about
a second relatively fixed axis.
This subclass is indented under subclass 210. Subject matter wherein the interrelated engine* and brake* regulating means
comprises a single member engaged by the foot, which member is turned
about a relatively fixed axis, and the axis is located between the
ends of the member such that either end of the member can be moved
about the axis.
This subclass is indented under subclass 210. Subject matter wherein the interrelated engine* and brake* regulating means
comprises a single member engaged by the foot which member is alternatively
moved back and forth on each displaceably held terminus.
This subclass is indented under subclass 210. Subject matter wherein the interrelated engine* and brake* regulating means
comprise a single member engaged by the foot whereby force is applied
at one end only to turn that member about a relatively fixed axis
and whereby initial turning movement regulates one of the engine* or
brake*, and continued rotation regulates the other of the
engine* or brake*.
This subclass is indented under subclass 209. Subject matter wherein the interrelated engine* and brake* regulating means
includes a flow path for liquid or gas.
This subclass is indented under the class definition. A collection of patents wherein the total mass of the vehicle regulates a power
delivery control.
This subclass is indented under the class definition. A collection of patents wherein the angle of inclination of the road surface regulates
a power delivery control.
CONTROL SIGNAL IS ENGINE PARAMETER OTHER THAN MANIFOLD
PRESSURE OR FUEL CONTROL:
This subclass is indented under the class definition. A collection of patents wherein a condition of the engine other than manifold pressure
or fuel control regulates a power delivery control.
This subclass is indented under the class definition. A collection of patents wherein mean to change the direction of travel of a vehicle
regulates a power delivery control.
This subclass is indented under the class definition. A collection of patents wherein the time rate of change of the velocity of an element
regulates a power delivery control.
MEANS DETECTING OR AMELIORATING THE EFFECTS OF MALFUNCTION OR
POTENTIAL MALFUNCTION:
This subclass is indented under the class definition. A collection of patents wherein means are provided for sensing an abnormal condition
or potentially abnormal condition and neutralizing a consequence
of the abnormal condition or potentially abnormal condition.
A collection of patents under collection 906 wherein duplicate
means are provided to neutralize the effects of an abnormal or potentially abnormal
condition.
This subclass is indented under the class definition. A collection of patents wherein two or more transmissions are in series and their
power delivery controls are interrelated.
This page is produced by the Office of Classification Support (Office of Patent Classification) for the Reference Tools Project.
Note: The Patent
and Trademark Depository Library Program (PTDLP) administers a nationwide
network of public, state and academic libraries designated as Patent and
Trademark Depository Libraries authorized by 35 U.S.C. 13 to: Disseminate
Patent and Trademark Information Support Diverse Intellectual Property
Needs of the Public. PTDL Contact Information
Note: For information/comments on electronic information products, such
as purchasing USPTO data, or to discuss system requirements for magnetic
tape products, contact:
KEY: =online
business system =fees =forms=help =laws/regulations =definition
(glossary)
The Inventors
Assistance Center is available to help you on patent
matters.Send questions about USPTO programs and services
to theUSPTO
Contact Center (UCC). You can suggest USPTO webpages
or material you would like featured on this section by E-mail
to the webmaster@uspto.gov.
While we cannot promise to accommodate all requests, your suggestions
will be considered and may lead to other improvements on the
website.
![[Search a list of Patent Appplications for class 477]](../as.gif)
CLASS 477,![[List of Patents for class 477 subclass 1]](../ps.gif)
1
=online
business system 
=fees 
=forms
=help 
=laws/regulations 
=definition
(glossary)