Class 251/109 - With spring

Subclass of Class 251 - Valves and valve actuation
Definition: Devices wherein the latch is spring biased.
No. of patents: 28
Last issue date: 03/25/2008

Number	Title	Issue Date
7347406	Shut-off valve and method of shutting off opening of vacuum chamber A shut-off valve disposed between openings formed to a vacuum chamber includes a casing, a valve body disposed inside the casing and having a shaft rotating around a central axis of the valve body, a drive unit for driving the valve body to rotate the shaft, and an ...	03/25/2008
7083157	Valve with lock-out mechanism and method of using the same A valve assembly includes a valve body having a fluid chamber and a fluid inlet and fluid outlet. A poppet assembly is movably disposed within the chamber and includes a poppet head. The chamber includes a valve seat and is interposed between the fluid inlet and out...	08/01/2006
7011291	Handle for valves A handle (2) as actuating device for valves (1) is proposed, comprising a fastening head (10) for fastening to a spindle (7) of the valve (1) and an actuating arm (11) for rotatably actuating the spindle, the spindle (7	03/14/2006
6959909	Actuating handle assembly A handle assembly mountable on a valve is disclosed. The assembly includes a head having a receptacle engageable with a rotatable shaft on the valve and a grip projecting outwardly from the head to facilitate turning of the head for actuating the valve. An arcuate s...	11/01/2005
6598850	Butterfly valve locking apparatus A locking device for a butterfly type valve is provided with an actuating shaft extending through a bore provided in a conduit in which the valve is located; the inner end of the shaft carries a locking arm that is movable upon rotation of the shaft betwe...	07/29/2003
6367775	Universal fill valve Fill valve 10 controls the flow of propane from a fill line FL to a control valve CV mounted on a propane use tank T. The fill valve includes a valve body 12 having a propane inlet 20, an elongate sleeve 24 and a discharge housing 22 surrounding the elong...	04/09/2002
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
6098954	Valve-actuating handle with end-position override A water valve has a fixed valve housing, a knob pivotal on the housing about a knob axis and formed with a radially throughgoing aperture, and an abutment projecting radially from the housing. The aperture passes the abutment on rotation of the knob on th...	08/08/2000
6086045	Tap with safety mechanism A tap attached to one end of a water pipe or a connecting pipe of a water dispenser, and controlling the flow of water or liquid by opening and closing an outlet by the operation of a handle actuated by the leverage, the tap including a body having a shaf...	07/11/2000
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
5836352	Environmental fill valve Fill valve 10 controls the flow of propane from a fill line FL to a control valve CV mounted on a propane use tank T. The fill valve includes a valve body 12 having a propane inlet 20, an elongate sleeve 24 and a discharge housing 22 surrounding the elong...	11/17/1998
5647389	Indexable latching handle assembly for quarter-turn rotary valves An indexable latching handle assembly for quarter-turn rotary valves which permits the arc of operation to be oriented as necessary to avoid surrounding obstacles and enhance ease of operation. This handle assembly has a latching device capable of latchin...	07/15/1997
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
5217201	Hot water faucet safety apparatus An apparatus receiving a valve stem through a central support tube includes a housing extending upwardly relative to a rear distal end of the support tube. The valve stem includes a truncated conical handle mounted at an outer distal end of the valve stem...	06/08/1993
4944325	Butterfly valve for erosive fluid streams A butterfly valve having a central cavity larger than the access ports. A disc is disposed within the central cavity to sealingly engage the interior of the valve. A molded elastomeric liner covers the interior of the valve and the disc. By utilizing a ce...	07/31/1990
4815693	Valve with actuating handle operable in different quadrants A valve has a housing to which a 360 degree notch plate is integrally connected. A valve member mounted within the housing control fluid flows and rotates though substantially 90 degrees between maximally open and closed positions. A valve stem extends up...	03/28/1989
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
4678159	Manually actuated fluid flow control valve and method of making same A manually actuated fluid flow control valve assembly and method of making same are provided wherein the valve assembly has an associated support structure and has a manually operated handle operatively connected to a closure device for the valve assembly...	07/07/1987
4469119	Pilot valve with fusible lockout knob There is disclosed an apparatus for manually locking a pilot valve in an "in service" position independent of an actuating, or pilot fluid pressure. The apparatus may be either manually disengaged or will be automatically disengaged whenever the ambient t...	09/04/1984
4304256	Torque transmitting assembly for rotary valve member A torque transmitting assembly for effecting rotation of a valve member such as a butterfly valve is hermetically sealed to the valve housing. It includes a rotor member having a plurality of circumferentially spaced permanent magnets of opposite polarity...	12/08/1981
4254667	Safety throttle for power tools A safety interlock for power tools for preventing inadvertent operation of the tool; the interlock must be moved before the tool control throttle can be actuated....	03/10/1981
4232817	Adjustment control for a thermostatic valve An adjustment control for a thermostatic valve consists of a non-rotatable component to the valve on which is mounted a rotatable knob for setting the temperature control, the knob having a maximum rotation of about one revolution. A releasable auxiliary ...	11/11/1980
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
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
4018292	Power tool with device for preventing unintentional turn-on of drive motor The power tool has a drive motor and a turn-on switch device activatable for turning on the drive motor. A manual activator is mounted for swinging movement in a predetermined plane of motion and in a predetermined direction from a normal position to an a...	04/19/1977
4016684	Safety lever lock A safety operating lever for hand tools or the like is disclosed. The lever is pivotally mounted at one end to the tool housing. Rotating of the lever about its pivot activates a valve causing the tool to operate. A safety lever lock is pivotally mounted ...	04/12/1977
3931954	Petcock An improved petcock for controlling the flow of a liquid from a container. The petcock includes a housing comprising an inlet and outlet passage joined at their inner ends by a frusto-conic valve chamber opening external of the housing through a circular ...	01/13/1976

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Class 251/109 - With spring