Class 251/99 - With spring

Subclass of Class 251 - Valves and valve actuation
Definition: Devices wherein the pivotally mounted handle is spring biased
No. of patents: 40
Last issue date: 06/08/2010

Number	Title	Issue Date
7731153	Handle for valves A handle (1) for valves (4) comprising a connecting region (2) for connecting the handle (1) to a spindle (5) of the valve (4), an actuating arm (3) for actuating the valve (4), a locking lever (8) arran...	06/08/2010
7284742	Flow control valve A flow control valve for controlling water flow, for example through a refrigeration unit condenser spray cooling system. The valve includes an arm that carries a paddle adapted to be placed in an air stream for deflection by an air current. Movement of the paddle c...	10/23/2007
7150076	Handlebar fixing device A handlebar fixing device of a motorized cart including a head tube formed on the upper section and a seat formed on the lower section, a connection tube formed with a shifter structure, a handlebar having a fan-shaped connection plate formed on the lower section wi...	12/19/2006
7093615	Water saving faucet valve A water saving faucet valve includes an elongated body having inlet and outlet ends, and high and low pressure chambers interconnected by a coaxial flow channel. A valve stem is slidably retained in the flow channel to move between a lowered position, in which water...	08/22/2006
7000468	Electronic level gauge Disclosed is a fluid level gauge for sensing the level of fluid in a dispenser. The level gauge includes an inlet port communicating with the fluid and a check valve in communication with the inlet port. The check valve includes a membrane which allows air to pass. ...	02/21/2006
6962319	Safety switch for a water dispenser A safety switch for a water dispenser includes a sealing ring movably received in the channel to alternatively block communication between the inlet and the outlet, a guiding rod securely received in the sealing ring and having a first spring compressibly mounted ar...	11/08/2005
6810901	Air compressor with foot-actuated condensate valve A foot-actuated condensate drain for an air compressor tank. The foot-actuated condensate drain includes a lever that is connected to a valve on the bottom of the air compressor tank. Movement of the lever, for example by a user's foot, causes the drain valve to ope...	11/02/2004
6592096	Safety device for taps for pasteurizing machines Safety device for taps provided with a disk shutter sliding in a tubular sector shaped like the arc of a circle, constituting the product outlet duct of a pasteurizing machines used in the production of creams, soups or the like. The shutter disk is conne...	07/15/2003
6450063	Folding handle A folding handle for attachment to a rotatable shaft element. The handle includes a handle body 10 having a cavity 17 within which a mounting block 20 is engaged. The mounting block 20 has oppositely projecting pivot members 21 slidingly engaged in recess...	09/17/2002
6347784	Limited-rotation valve-control knob with override A valve having a housing from which projects a stem rotatable about an axis has an actuating assembly with an abutment ring fixed on the housing, formed with an annular slot, and having an abutment projecting radially into the slot. A knob mounted on and ...	02/19/2002
6325355	Spring handle angle cock A handle mechanism to be mounted to a stem of a valve element. The mechanism includes a socket to be fixed to the stem of the valve element, a handle portion including a clevis having a pair of legs and a base joining the legs and pivotally connected to t...	12/04/2001
6036170	Service valve heads which may be connected to soft drink bottles or the like Improvements in service valve heads which may be connected to soft drink bottles or the like, wherein a valve body is obtained, a liquid circulation channel being provided between the spout and the fishing tube, said channel having a check valve. The rod ...	03/14/2000
6032922	Fluid flow control valve and actuating mechanism A fluid flow control valve is provided comprising a valve seat inside a housing for defining a passage opening in the housing and a valve seal positioned against the valve seat for closing off fluid flow. A push rod extends from the valve seal and through...	03/07/2000
6003735	Hand-portable safety-canister w/vari-flow thumb-valve A much safer, and more convenient to use, flammable-liquid storage-container of the hand-portable 1-5 gallon blow-molded/polyethylene-plastic type; featuring a special direct thumb-actuated ballvalve, with geneeric-variations, configured to enable si...	12/21/1999
5899439	Handle with adjustable stop for flow-control valve A valve has a valve housing and a stem projecting from the housing and rotatable relative thereto about an axis. A handle assembly for the valve has an abutment directed angularly in one direction of the axis and fixed relative to the housing, a knob, and...	05/04/1999
5887850	Spring loaded valve handle A unitary handle structure to be secured to the shaft of the valve and cooperate with the stops on the body to delimit and lock the valve element in its open and closed positions. The handle structure includes a socket portion fixed to the stem of the val...	03/30/1999
5622201	Bucket valve with removable handle A bucket valve with a removable handle includes a tubular valve body, a piston disposed with the valve body and a crank arm integrally formed of a central sleeve and two spaced fingers. The fingers are pivotally retained to the piston. A drive shaft is dr...	04/22/1997
5544854	Remote control of cut-out cock A remote handle operating mechanism for a cut-out cock located on the back side of a pipe bracket on which the service and emergency portions of a railroad brake control valve device are mounted at the front side thereof. A push-pull rod extends from the ...	08/13/1996
5449144	Faucet valve with safety handle A faucet for controlling the dispensing of liquids includes a valve body having a valve chamber with a valve element movable between first and second positions for controlling flow between an inlet and the outlet. An operating stem extends from the valve ...	09/12/1995
5290008	Discharge controlling device for faucets This invention is directed to a discharge controlling device for faucet, characterized in that a control lever is used to push a throttle pin axially positioned within the center of the housing, such that the pin is slidably moved up and down and engages ...	03/01/1994
5288053	Discharge controlling device for faucets This invention is directed to a discharge controlling device for faucet, characterized in that a control lever is used to push a throttle pin axially positioned within the center of the inner sleeve, such that the pin is slidably moved up and down and eng...	02/22/1994
5275200	Oil draining control valve The oil draining control valve comprises a valve housing having a fluid passage and a shaft housing; a valve body pivotally housed in the fluid passage of the valve housing; a rotary shaft also rotatably housed in the shaft housing and engaged with the va...	01/04/1994
5127428	Poppet valve assembly and method of making same A poppet valve assembly and method of making same are provided and such assembly comprises a housing; a flow passage in the housing with the passage having a central axis and being adapted to flow a fluid in either direction therethrough; a poppet structu...	07/07/1992
5072913	Spring loaded locking handle for angle cock or the like A spring loaded locking handle assembly for an angle cock or the like wherein the helical windings of a torsion type spring are mounted on a fulcrum pin about which the handle proper of a two-piece, locking style handle assembly is pivotally connected to ...	12/17/1991
5069421	Safety device for a pneumatic tool A safety device for a pneumatic tool having a body and an operation lever and a valve stem lowered by the operation lever has an axially movable pivot shaft by which the operation lever is pivoted to one end of the main body of the pneumatic tool. A stop ...	12/03/1991
5056678	Access port sealing device An access port cover is fitted with a sealing plug that is adapted to fit inside a conduit to provide an occluding seal. The conduit is also fitted with an inner flap that is automatically closed and latched when the cover is closed and latched. In a pref...	10/15/1991
4802313	Abrasive blasting system An abrasive blasting system which includes an improved mixing and control valve assembly together with an improved manually operable discharge nozzle assembly. The mixing and control valve assembly comprises a housing defining first and second chambers co...	02/07/1989
4784330	High pressure spraying gun A high pressure spraying gun has a jet pipe, a pressure water supply element, two trigger levers for right-handed and left-handed actuation, and only one blocking valve arranged to selectively block and to release pressure water through flow through the j...	11/15/1988
4658907	Fire extinguisher safety pin tag holder A safety pin for fire extinguishers. The pin has a prong interfitted in registering holes of the extinguisher to prevent operation until removed by grasping a finger loop and extracting the pin. The finger loop is connected to a stabilizer extension of th...	04/21/1987
4610282	Liquid carbonating apparatus A portable machine for carbonating liquid contained in a bottle is adapted to support the bottle (5) by the neck (81) through a bayonet connection and for a seal (64) which closes the bottle neck to be driven into engagement with the bottle neck by a pist...	09/09/1986
4568059	Ball valve A ball valve for medium and low pressure service includes a valve body, a valve member positioned in the valve body, circlips attached to the valve body, and provided at the upstream side and downstream side of the valve member, and sealing members provid...	02/04/1986
4460153	Lever operator for a valve control and actuating mechanism A lever operator for use primarily with valves of the plug type in which a tapered plug is raised to unseat associated slips and then rotated to a valve open position during opening of the valve and is rotated to a valve close position and lowered to seat...	07/17/1984
4456219	Spring-locking handle mechanism A spring-locking handle mechanism in which a flat piece of spring stock is formed in a generally U-shaped configuration to provide a locking spring, one leg of which bears against the underside of the socket portion of a conventional two-piece locking han...	06/26/1984
4397445	Safety valve unions The present invention relates to safety valve unions wherein the rotating plug is shaped so as to retain when it is in open position the terminal end of the male element which is released when said plug has been brought into closed position. The opposite ...	08/09/1983
4305421	Fluid dispensing system A system for dispensing fluid from a container. The container is pressurized by supplying gas into the container thereby forcing the fluid out of the container through a siphon tube and an outlet valve in the container. The system utilizes a valve assembl...	12/15/1981
4225087	Lock-off means for airless sprayer An automatic safety mechanism for airless spray equipment such as airless spray guns of the type having a trigger mechanism for actuating a gun spraying mechanism is provided. The safety mechanism comprises a lock mechanism for automatically locking the t...	09/30/1980
4216911	High-pressure liquid-jet gun A high-pressure liquid-jet gun has a pistol-type housing provided with a valve having an actuation member displaceable between a closed position and an open position to release liquid from an end of the housing. A safety lever is displaceable on the housi...	08/12/1980
4126294	Adapter valve mechanism for transportation tank A fabricated adapter valve for mounting on the exterior of a transportation tank for liquid, such as for instance gasoline or oil, providing for coupling with a compatible loading coupler of a loading island, for loading the liquid into the transportation...	11/21/1978
4109673	Combination gladhand and shutoff cock A combination gladhand and shutoff cock includes a dust cover attached to the shutoff cock operating handle and closing the gladhand body air outlet when the shutoff cock is in a closed position. There is a latch effective between the shutoff cock handle ...	08/29/1978
4069836	Brake pipe end cock with double-ended handle to permit operation from either side of the car A brake pipe end cock provided with a pair of operating handles disposed respectively on opposite sides of the end cock, whereby the end cock may be operated from either side of the car, because one handle, which is self-locking on one side, is connected ...	01/24/1978

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Class 251/99 - With spring