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VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING { ( devices for emptying and evacuating the excess liquid in valves or conduits F16L 55/07) }
Lift valves {or globe valves} , i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces ( { in combination with sliding valves F16K 3/246 , F16K 3/267} ; diaphragm valves F16K 7/00)
References relevant to classification in this group
This subclass/group does not cover:
Informative references
Attention is drawn to the following places, which may be of interest for search:
In combination with sliding valves
Diaphragm valves
with screw-spindle (F16K 1/12 to F16K 1/28 take precedence; actuating mechanisms with screw-spindles F16K 31/50)
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Informative references
Attention is drawn to the following places, which may be of interest for search:
For the actuation mechanism
with a cut-off member rigid with the spindle, e.g. main valves
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with streamlined valve member around which the fluid flows when the valve is opened
Definition statement
This subclass/group covers:

The valve member is within the flow passage.

Illustrative example:

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{with stationary valve member and moving sleeve}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{actuated by fluid}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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References relevant to classification in this group
This subclass/group does not cover:
Valves actuated by fluid in general
with ball-shaped valve member ( check valves F16K 15/04)
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Informative references
Attention is drawn to the following places, which may be of interest for search:
Check valves
Safety/equalising valves
Fluid delivery valves of the self-closing type
Venting valves
with pivoted closure-members
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with a plurality of closure members}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with pivoted discs or flaps
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with axis of rotation arranged externally of valve member
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Movable sealing bodies
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{the movement being caused by the flowing medium}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with valve members that, on opening of the valve, are initially lifted from the seat and next are turned around an axis parallel to the seat
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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specially adapted for pressure containers
Definition statement
This subclass/group covers:

High-pressure valves, generally used in connection with pressure containers. See also F17C (Gas vessels) and G05D (Pressure regulators).

Illustrative example:

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Informative references
Attention is drawn to the following places, which may be of interest for search:
Connectors used in connection with pressure containers / the connectors comprising valves
{only shut-off valves, i.e. valves without additional means}
Definition statement
This subclass/group covers:

Valves used for opening/closing the flow path, without other functions (e.g. regulation) or other valves on the same valve body (e.g. safety valves).

{with valve member and actuator on the same side of the seat}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with a valve member, e.g. stem or shaft, passing through the seat}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{Shut-off valves with additional means}
Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:
Additional means
Valves or devices, used for other functional purposes than only opening/closing the valve (e.g. regulation, safety, monitoring).
{Additional means used in combination with the main valve}
References relevant to classification in this group
This subclass/group does not cover:
Flow regulation
Special rules of classification within this group

The application focuses on the "other" functions of the main valve.

Glossary of terms
In this subclass/group, the following terms (or expressions) are used with the meaning indicated:
Additional means
Valves or devices, used for other functional purposes than only opening/closing the valve (e.g. regulation, safety, monitoring).
{Connecting means}
Definition statement
This subclass/group covers:

Details of the (permanent) connection of the valve to the container.

References relevant to classification in this group
This subclass/group does not cover:
Connectors per se (quick connectors with valves)
Details ( details of more general applicability F16K 25/00 to F16K 51/00)
Definition statement
This subclass/group covers:

Details (e.g. shape, materials, function) of valve members, seats, attaching members to spindles, preventing rotation, additional adjustment (with additional means) of the flow and other arrangements of the valve member for modifying the rate of flow (see sub-classes).

Cutting-off parts, e.g. valve members, seats (F16K 1/06 , F16K 1/12 , F16K 1/14 , F16K 1/26 take precedence )
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{contacting in the closed position, over a substantial axial length, a seat surface having the same inclination}
Definition statement
This subclass/group covers:

E.g. "needle" valves.

{the seats being in series}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with additional cleaning or venting means between the two seats}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Attachment of sealing rings
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Attaching valve members to screw-spindles
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Preventing rotation of valve members
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Means for additional adjustment of the rate of flow
Definition statement
This subclass/group covers:

Additional means for adjusting the rate of flow in combination with the cutting-off parts.

Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
Definition statement
This subclass/group covers:

Only the valve member modifies the flow during the actuation of the valve.

Illustrative example:

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Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing (F16K 5/00 takes precedence; in barrages or weirs E02B 8/04)
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{Curtain gate valves}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{Guillotine or blade-type valves, e.g. no passage through the valve member}
Definition statement
This subclass/group covers:

Blade-type: no through-hole is present in the valve member.

Illustrative example:

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with a closure member in the form of an iris-diaphragm
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with circular plates rotatable around their centres
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with special arrangements for separating the sealing faces or for pressing them together
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with wedge-shaped arrangements of sealing faces
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{by means of toggle links}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{by means of cams}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{by means of hydraulic forces}
Definition statement
This subclass/group covers:

The closure members are pushed towards the seats by hydraulic forces.

Illustrative example:

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References relevant to classification in this group
This subclass/group does not cover:
Fluid actuation of the valve
{by movement of toggle links}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{by means of hydraulic forces}
Definition statement
This subclass/group covers:

The seat members are pushed towards valve members by hydraulic forces.

References relevant to classification in this group
This subclass/group does not cover:
Fluid actuation of the valve
with sealing faces shaped as surfaces of solids of revolution (F16K 13/02 takes precedence; with resilient valve members F16K 3/28)
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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References relevant to classification in this group
This subclass/group does not cover:
Taps and cocks
Multiple-way (e.g. more than two) sliding valves with sealing faces shaped as surfaces of solids of revolution
{Packings (F16K 3/246 takes precedence ) }
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{Combination of a sliding valve and a lift valve}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with fluid passages in the valve member
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with a transverse bore in the valve member}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with a sleeve sliding in the direction of the flow line}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{Combination of a sliding valve and a lift valve (F16K 3/262 , F16K 3/265 take precedence ) }
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with resilient valve members
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Details
Definition statement
This subclass/group covers:

Constructional details of the valve member, guiding and attachment to the spindle, lubrication and other details of special arrangements for influencing the flow.

{Plug valves;} Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary ( taps of the lift-valve type F16K 1/00)
References relevant to classification in this group
This subclass/group does not cover:
Multiple way taps or cocks
with plugs having conical surfaces; Packings therefor
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with plugs having cylindrical surfaces; Packings therefor
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with plugs having spherical surfaces; Packings therefor
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Details
Definition statement
This subclass/group covers:

Details of the valve member's sealing not covered by F16K 5/02 to F16K 5/06; Lubrication; Other means for adjusting the flow.

with tubular diaphragm
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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constrictable by external radial force
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{by electric or magnetic means}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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by means of a screw-spindle, cam, or other mechanical means { (F16K 7/045 takes precedence ) }
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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by means of fluid pressure
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with inflatable member
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{the seat being formed on the bottom of the fluid line}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{the seat being formed on a rib perpendicular to the fluid line}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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arranged to be deformed against a flat seat
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with diaphragm secured at one side only, e.g. to be laid on the seat by rolling action
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with a compressible solid closure member
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
References relevant to classification in this group
This subclass/group does not cover:
Faucet diverter valves
with all movable sealing faces moving as one unit
Definition statement
This subclass/group covers:

A common valve member seals several seats

with movable valve members positioned between valve seats
Definition statement
This subclass/group covers:

Stationary valve seats and a movable valve member.

Illustrative example:

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with valve seats positioned between movable valve members
Definition statement
This subclass/group covers:

Stationary seats positioned between movable valve members.

Illustrative example:

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with pivoted closure members, e.g. butterfly valves
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with ball-shaped valve members
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{moving in a combined straight line and rotating movement}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with flat slides}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{comprising locking elements}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{comprising means to avoid jamming of the slide or means to modify the flow}
Definition statement
This subclass/group covers:

Including means for modifying the flow for avoiding the jamming of the slide.

Illustrative example:

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{comprising particular spool-valve sealing means}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with flluid passages through the valve member (F16K 11/0704 , F16K 11/0708 , F16K 11/0712 take precedence ) }
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with pivoted closure members
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with pivoted and linearly movable closure members
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with two or more closure members not moving as an unit
Definition statement
This subclass/group covers:

Multiple-way valves with either a common acutating means or separate actuating means for every valve member.

Other constructional types of cut-off apparatus ( means for plugging pipes or hoses F16L 55/10) ; Arrangements for cutting-off
Definition statement
This subclass/group covers:

Valve arrangements which do not belong per se to any of the previous constructional classes or having a function which cannot be classified under the existing functional classes.

with both sealing faces shaped as small segments of a cylinder and the moving member pivotally mounted
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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with a breakable closure member
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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by means of liquid or granular medium
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Check valves ( valves specially adapted for inflatable balls A63B 41/00)
Special rules of classification within this group

Valves classified in F16K 17/00 can also be classified in this class when structural features so entitle.

with guided rigid valve members
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Safety valves; Equalising valves, {e.g. pressure relief valves}
Special rules of classification within this group

Check valves (F16K 15/00) can be classified in this sub-class when their function can be identified as falling under this title.

{reacting to pressure and temperature}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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References relevant to classification in this group
This subclass/group does not cover:
Actuated by temperature only
{specially adapted for shelters}
Definition statement
This subclass/group covers:

Adapted for bomb-shelters.

Arrangements of valves and flow lines specially adapted for mixing fluids ( multiple-way valves F16K 11/00)
Definition statement
This subclass/group covers:

When no details of the valve members or seats are disclosed in the document.

Fluid-delivery valves, {e.g. self-closing valves} ( for liquid handling B67D ; for flushing devices for water-closets or the like E03D)
Definition statement
This subclass/group covers:

Valves that are either self-closing or provide a continuous small flow.

Valves for preventing drip from nozzles
Informative references
Attention is drawn to the following places, which may be of interest for search:
Nozzles, spray heads or other discharge apparatus for spraying or atomising
Devices, e.g. valves, for venting or aerating enclosures ( equalising valves F16K 17/00 ; arrangement or mounting in pipes or pipe systems F16L 55/07 ; venting or aerating as an additional function of steam traps or like apparatus F16T ; ventilation of rooms, vehicles, see the appropriate subclass, e.g. F24F)
Informative references
Attention is drawn to the following places, which may be of interest for search:
Fuel tanks
for venting only (F16K 24/02 takes precedence )
Definition statement
This subclass/group covers:

The air (or fluid) from the circuit is released.

for aerating only (F16K 24/02 takes precedence )
Definition statement
This subclass/group covers:

Fluid (air) is admited in the circuit.

References relevant to classification in this group
This subclass/group does not cover:
Venting of plumbing installations, waste pipes
Details relating to contact between valve members and seat ( sealing constructions, see the appropriate groups according to the type of valve; movement of valve members other than for opening and closing F16K 29/00)
Definition statement
This subclass/group covers:

Materials and arrangements of valve members and seats not otherwise provided for

Arrangements using fluid issuing from valve members or seats
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{Housing formed from a plurality of the same valve elements}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{Actuating devices;} Operating means; Releasing devices { (regulating means G05D) }
References relevant to classification in this group
This subclass/group does not cover:
Magnetic constructions with armature (actuators)
Control or regulation of electric motors
{actuated by temperature variation ( thermo-electric F16K 31/025) }
References relevant to classification in this group
This subclass/group does not cover:
Shape memory alloy
Sensitive elements producing movements (e.g. bimetallic strips).
{operated without a stable intermediate position, e.g. with snap action (F16K 31/56 takes precedence ) }
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{actuated by piezo-electric means}
Informative references
Attention is drawn to the following places, which may be of interest for search:
Piezo-electric devices
electric { (F16K 31/004 takes precedence ) } ; magnetic
References relevant to classification in this group
This subclass/group does not cover:
Magnetic circuits and magnets in general
using a motor
References relevant to classification in this group
This subclass/group does not cover:
Details of the magnetic circuit of the motor
{Multiple-way valves}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with cylindrical slides}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with flat slides}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{the valve element being at least partially ball-shaped}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with movable valve member positioned between seats}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{with fixed seats positioned between movable valve members}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{the armature and the valve member forming one element (F16K 31/0651 takes precedence ) }
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{Armature and valve member being one single element}
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Handles { form, features or function of taps or faucet handles for domestic plumbing installations E03C 1/04}
References relevant to classification in this group
This subclass/group does not cover:
Form, features and function of taps or faucets handles
Floats for actuation of valves or other apparatus { ( float actuated valves F16K 31/18) }
Definition statement
This subclass/group covers:

Construction of the float per se.

Means to prevent accidental or unauthorised actuation
Definition statement
This subclass/group covers:

Locking or interlocking the valve actuating device. Not the lock per se.

Informative references
Attention is drawn to the following places, which may be of interest for search:
Locks
Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
Informative references
Attention is drawn to the following places, which may be of interest for search:
Testing or monitoring control systems or parts; Electric testing
{For recording or indicating the functioning of a valve in combination with test equipment}
References relevant to classification in this group
This subclass/group does not cover:
Testing or monitoring control systems or parts; Electric testing
Above ground control means for valves in boreholes or wells
Testing static or dynamic balance of machines or structures; Investigate fluid-tightness (leaks)
Devices for relieving the pressure on the sealing faces
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Spindle sealings
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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{by fluid}
Definition statement
This subclass/group covers:

It refers to sealings by fluid in general, not only liquid.

with stuffing-box; {Sealing rings}
Definition statement
This subclass/group covers:

Sealings with stuffing-box OR sealing ring.

Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
Definition statement
This subclass/group covers:

Illustrative example of subject matter classified in this group.

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Other details not peculiar to particular types of valves or cut-off apparatus
Informative references
Attention is drawn to the following places, which may be of interest for search:
Housings
Subject matter not provided for in other groups of this subclass
Informative references
Attention is drawn to the following places, which may be of interest for search:
Microvalves
{Micro-valves ( micro-devices B81B 1/00 ; manufacture or treatment of devices or systems in or on a substrate B81C 1/00 ; micro-fluidic structures B01L 3/5027 ; micro-pumps F04B 19/006) }
Relationship between large subject matter areas

B01F 13/0059 - Micromixers.

B01L 3/00 - Containers or dishes for laboratory use.

B81B 1/00 - Micro-capillary devices in general.

B81B 7/00 - Micro-structural systems (Auxiliary parts of micro-structural devices or systems.)

B81C 1/00 - Microstructural technology.

B01J 19/0093 - Microreactors.

F04B 19/006 - Micropumps.

F04B 43/043 - Membrane micropumps.

G01N 27/447 - Electrophoresis for analysis in microdevices.

See also: B81B 2201/054 - Micro-valves, B81B 2203/0127 - Diaphragms, membranes for micro-electromechanical structures.

This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013