(0)F16K:4/5:

(0)F16K:4/5:

IPC6

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

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

F16K

5/6

F16K021/00 - F16K031/72

21

/

00

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)

providing a continuous small flow

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

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

with ball-shaped closing members

with hydraulic brake cylinder acting on the closure member

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

with special means for preventing the self-closing

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

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

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

Valves for preventing drip from nozzles

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]

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

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

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.

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)

Arrangements using fluid issuing from valve members or seats

Arrangements for preventing erosion, not otherwise provided for

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

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

of sliding valves

of taps or cocks

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

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

Welded housings

Covers for housings

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

providing for continuous motion

Operating means; Releasing devices

electric; magnetic

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

using a permanent magnet

with additional mechanism between armature and closure member

with additional hand operating means [2]

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

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]

servo actuated [2]

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]

servo actuated [2]

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

the fluid acting on a piston

the fluid acting on a diaphragm

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

the fluid acting on a piston

the fluid acting on a diaphragm

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)

actuating a lift valve

with the float rigidly connected to the valve

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

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

with two or more floats actuating one valve

actuating a gate valve or sliding valve

actuating a tap or cock

acting on pilot valve controlling the cut-off apparatus

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

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

the fluid acting on a diaphragm

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)

the fluid acting on a piston

the fluid acting on a diaphragm

with electrically-actuated member in the discharge of the motor

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

Mechanical actuating means

for remote operation

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

with screw-spindle

with crank, eccentric, or cam

with pin and slot

with toothed gearing

with pinion and rack

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

comprising a movable discharge-nozzle

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

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]

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

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

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

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

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