IPC 6 English version F16K 13/00-F16K 51/02

F16K01300-F16K05102

SECTION F– MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F 16

ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F 16 K

VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING

13/

Other constructional types of cut-off apparatus (means for plugging pipes or hoses F 16 L 55/10); Arrangements for cutting-off [4]

13/

with both sealing faces shaped as small segments of a cylinder and the moving member pivotally mounted

13/

Arrangements for cutting-off [4]

13/

by means of liquid or granular medium [4]

Functional types

Note

Attention is drawn to Note (2) following the title of subclass G 05 D and also the subdivisions of that subclass, according to which pressure regulators and flow regulators, e.g. flow regulating valves with pressure compensator, even with the whole regulating system contained in a valve, operating with or without auxiliary power, are covered by groups G 05 D 16/00 or G 05 D 7/00, respectively. However, details of the valve parts, per se, are classified in the appropriate groups of this subclass. [2]

15/

Check valves (valves specially adapted for inflatable balls A 63 B 41/00)

15/

with guided rigid valve members

15/

with a hinged closure member

15/

shaped as balls

15/

with guided stems

15/

shaped as rings

15/

integral with, or rigidly fixed to, a common valve plate

15/

Springs for ring valves [3]

15/

with flexible valve members

15/

with tongue-shaped laminae

15/

with actuating mechanism; Combined check valves and actuated valves

15/

specially designed for inflatable bodies, e.g. tyres (connecting valves to inflatable elastic bodies B 60 C 29/00)

17/

Safety valves; Equalising valves (pressure relief devices for aerosol containers B 65 D 83/70)

17/

opening on surplus pressure on one side; closing on insufficient pressure on one side (check valves F 16 K 15/00)

17/

spring-loaded

17/

with special arrangements for adjusting the opening pressure

17/

with special arrangements for providing a large discharge passage

17/

with auxiliary valve for fluid operation of the main valve

17/

weight-loaded

17/

with fracturing member

17/

with fracturing diaphragm

17/

164

and remaining closed after return of the normal pressure

17/

168

combined with manually-controlled valves, e.g. a valve combined with a safety valve

17/

opening on surplus pressure on either side

17/

Equalising valves predominantly for tanks

17/

192

with closure member in the form of a movable liquid column

17/

194

weight-loaded

17/

196

spring-loaded

17/

Excess-flow valves (actuated in consequence of shock or similar extraneous influence F 16 K 17/36)

17/

actuated by the difference of pressure between two places in the flow line

17/

acting directly on the cutting-off member

17/

operating in either direction

17/

operating in one direction only

17/

spring-loaded

17/

acting on a servo-mechanism or on a catch-releasing mechanism

17/

in which the flow-energy of the flowing medium actuates the closing mechanism

17/

actuated in consequence of extraneous circumstances, e.g. shock, change of position

17/

of excessive temperature

17/

with fracturing member, e.g. fracturing diaphragm, fusible joint (valves with fracturing member opening on surplus pressure on one side F 16 K 17/14)

17/

Valves preventing penetration of air in the outlet of containers for liquids

21/

Fluid-delivery valves (specially adapted for aerosol containers B 65 D 83/44; for liquid handling B 67 D; for flushing devices for water-closets or the like E 03 D)

21/

providing a continuous small flow

21/

Self-closing valves, i.e. closing automatically after operation

21/

in which the closing movement, either retarded or not, starts immediately after opening

21/

with ball-shaped closing members

21/

with hydraulic brake cylinder acting on the closure member

21/

with hydraulically-operated opening means; with arrangements for pressure relief before opening

21/

with special means for preventing the self-closing

21/

closing after a predetermined quantity of fluid has been delivered (F 16 K 21/10 takes precedence)

21/

closed when a rising liquid reaches a predetermined level (float-actuated valves F 16 K 31/18)

21/

by means making use of air-suction through an opening closed by the rising liquid

23/

Valves for preventing drip from nozzles

24/

Devices, e.g. valves, for venting or aerating enclosures (equalising valves F 16 K 17/00; arrangement or mounting in pipes or pipe systems F 16 L 55/07; venting or aerating as an additional function of steam traps or like apparatus F 16 T; ventilation of rooms, vehicles, see the appropriate subclass, e.g. F 24 F) [2]

24/

the enclosure being itself a valve, tap, or cock [2]

24/

for venting only (F 16 K 24/02 takes precedence) [2]

24/

for aerating only (F 16 K 24/02 takes precedence) [2]

Details

Note

Details not provided for in the following groups are classified in the preceding groups.

25/

Details relating to contact between valve members and seats (movement of valve members other than for opening and closing F 16 K 29/00; sealing constructions, see the appropriate groups according to the type of valve)

25/

Arrangements using fluid issuing from valve members or seats

25/

Arrangements for preventing erosion, not otherwise provided for

27/

Construction of housings (methods for welding housings B 23 K); Use of materials therefor

27/

of lift valves (for reducing the flow resistance of screw-spindle lift-valves F 16 K 1/06)

27/

of sliding valves

27/

of taps or cocks

27/

of cutting-off parts of tanks, e.g. tank-cars [4]

27/

Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves

27/

Welded housings

27/

Covers for housings

29/

Arrangements for movement of valve members other than for opening or closing the valve, e.g. for grinding-in, for preventing sticking

29/

providing for continuous motion

31/

Operating means; Releasing devices

31/

electric; magnetic

31/

using a motor

31/

specially adapted for operating hand-operated valves or for combined motor and hand operation

31/

using a magnet

31/

using a permanent magnet

31/

with additional mechanism between armature and closure member

31/

with additional hand operating means [2]

31/

actuated by fluid (fluid-actuated check valves F 16 K 15/00; fluid-actuated safety valves F 16 K 17/00)

31/

122

the fluid acting on a piston (F 16 K 31/143, F 16 K 31/163, F 16 K 31/363, F 16 K 31/383 take precedence) [2]

31/

124

servo actuated [2]

31/

126

the fluid acting on a diaphragm, bellows, or the like (F 16 K 31/145, F 16 K 31/165, F 16 K 31/365, F 16 K 31/385 take precedence) [2]

31/

128

servo actuated [2]

31/

for mounting on, or in combination with, hand-actuated valves

31/

143

the fluid acting on a piston

31/

145

the fluid acting on a diaphragm

31/

with a mechanism, other than pulling- or pushing-rod, between fluid motor and closure member (with float F 16 K 31/18)

31/

163

the fluid acting on a piston

31/

165

the fluid acting on a diaphragm

31/

actuated by a float (floats F 16 K 33/00; float-actuated valves in steam-traps F 16 T 1/20, in boilers F 22 D 5/08)

31/

actuating a lift valve

31/

with the float rigidly connected to the valve

31/

with a transmission with parts linked together from a single float to a single valve

31/

with the valve guided for rectilinear movement and the float attached to a pivoted arm

31/

with two or more floats actuating one valve

31/

actuating a gate valve or sliding valve

31/

actuating a tap or cock

31/

acting on pilot valve controlling the cut-off apparatus

31/

in which fluid from the conduit is constantly supplied to the fluid motor

31/

363

the fluid acting on a piston (F 16 K 31/38 takes precedence)

31/

365

the fluid acting on a diaphragm

31/

in which the fluid works directly on both sides of the fluid motor, one side being connected by means of a restricted passage and the motor being actuated by operating a discharge from that side (F 16 K 31/40 takes precedence)

31/

383

the fluid acting on a piston

31/

385

the fluid acting on a diaphragm

31/

with electrically-actuated member in the discharge of the motor

31/

by means of electrically-actuated members in the supply or discharge conduits of the fluid motor (F 16 K 31/40 takes precedence)

31/

Mechanical actuating means

31/

for remote operation

31/

actuated by mechanical timing-device, e.g. with dash-pot (self-closing valves F 16 K 21/16)

31/

with screw-spindle

31/

with crank, eccentric, or cam

31/

524

with a cam

31/

528

with pin and slot

31/

with toothed gearing

31/

with pinion and rack

31/

without stable intermediate position, e.g. with snap action

31/

comprising a movable discharge-nozzle

31/

Handles

31/

Pedals or like operating members, e.g. actuated by knee or hip

31/

responsive to temperature variation (dependant on excessive temperature F 16 K 17/38; control of fire-fighting equipment A 62 C 37/00; devices for preventing bursting of water pipes by freezing E 03 B 7/10) [4]

31/

electrically or magnetically actuated, e.g. by magnets with variable magnetic characteristics [4]

31/

actuated by fluid pressure or volumetric variation in a confined chamber [4]

31/

mechanically actuated, e.g. by a bimetallic strip [4]

31/

Operating means or releasing devices specifically adapted to enhance the speed of valve response [4]

33/

Floats for actuation of valves or other apparatus

35/

Means to prevent accidental or unauthorised actuation

35/

to be locked or disconnected by means of a push or pull

35/

yieldingly resisting the actuation

35/

using a removable actuating or locking member, e.g. a key (F 16 K 35/10, F 16 K 35/12 take precedence)

35/

requiring setting according to a code, e.g. permutation locks

35/

with locking caps or locking bars

35/

with sealing wire

35/

interlocking two or more valves

35/

with locking member actuated by magnet

37/

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

39/

Devices for relieving the pressure on the sealing faces

39/

for lift valves

39/

for sliding valves

39/

for taps or cocks

41/

Spindle sealings

41/

with stuffing-box

41/

with at least one ring of rubber or like material between spindle and housing

41/

with at least one ring attached to both spindle and housing

41/

with at least one ring provided with axially-protruding peripheral closing-lip

41/

with diaphragm, e.g. shaped as bellows or tube

41/

with approximately flat diaphragm

41/

with conical flange on the spindle which co-operates with a conical surface in the housing

41/

with a flange on the spindle which rests on a sealing ring

41/

sealing only when the closure member is in the opened position

43/

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

47/

Means in valves for absorbing fluid energy (for pipes F 16 L 55/00)

47/

for preventing water-hammer or noise

47/

for decreasing pressure, the throttle being incorporated in the closure member

47/

with a throttle in the form of a helical channel

47/

for decreasing pressure and having a throttling member separate from the closure member

47/

in which the medium in one direction must flow through the throttling channel, and in the other direction may flow through a much wider channel parallel to the throttling channel

47/

the throttling channel being of helical form

47/

the throttling member being a perforated membrane

47/

the throttling member being a cone

49/

Means in or on valves for heating or cooling (for pipes F 16 L 53/00; thermal insulation in connection with pipes or pipe systems F 16 L 59/16)

51/

Other details not peculiar to particular types of valves or cut-off apparatus

51/

specially adapted for high-vacuum installations [2]

F16K - F16K 11/24