Class 251/280 - Toggle

Subclass of Class 251 - Valves and valve actuation
Definition: Apparatus including toggle mechanism.
No. of patents: 29
Last issue date: 12/04/2007

Number	Title	Issue Date
7303176	Controller Force amplifying means 5 comprises a tapered member 41 extending vertically downward from the lower end of an operating rod 3, a disk member 42 provided at the upper end of a valve stem 16, and front and rear pivotal members 43,...	12/04/2007
7097148	Scissor thrust valve actuator Apparatus for actuating a valve includes a support frame and at least one valve driving linkage arm, one end of which is rotatably connected to a valve stem of the valve and the other end of which is rotatably connected to a screw block. A motor connected to the fra...	08/29/2006
6886589	Float valve The float valve (11) controls water level e.g. in an associated plant pot. A housing (21) has a water inlet (25) with an inlet port (26), a float (31) able to rise and fall with the level of the water in the housing (21), a ...	05/03/2005
6708723	Inwardly opening mechanical vent system An inwardly opening mechanical vent system is provided for use in a fluid tank having a bottom loading valve and a vent formed in an upper tank surface. The vent system includes a spring interposed between a vent valve and a body extending downwardly into the tank t...	03/23/2004
6179172	Cargo discharge gate A basket gate (18) mechanism, typically for use in the cargo holds (12), of bulk carriers (10), includes two opposed gate segments (50, 51) which shut along a central line. Each gate segment (50, 51) is supported at its ends by pairs of different length a...	01/30/2001
6053251	Reduced travel operating mechanism for downhole tools A reduced travel operating mechanism for downhole tools is provided. The reduced travel operating mechanism (57) includes a load ratio system (59) which may include compression ring (102) disposed within circumferential guide pocket (123) and a linkage sy...	04/25/2000
5967486	Automated actuator for pull-open, push-closed valves A valve actuator having a pivotal cam-lever driven push-pull mechanical linkage system. A power mechanism moves a cam-lever member which then moves a connecting rod to move a push-pull member to lift out or push in a conventional valve stem. This then ope...	10/19/1999
5556072	Controller A controller comprises a valve body having a valve element and a valve seat defining therebetween a fluid channel openable and closable with reciprocating upward and downward movement of a valve stem, a casing fixed to an upper portion of the valve body, ...	09/17/1996
5411059	Multiple flow rate fluid control valve assembly A multiple flow rate fluid control valve assembly in which the mode of fluid flow is interfaced with the rate of fluid flow has a mode control valve having a switch for selectively setting the valve to either of a continuous fluid flow mode or a pulse flu...	05/02/1995
5230361	Snap action toggle valve actuator assembly A snap action toggle valve actuator assembly for use in a fluid holding tank. Movement of a float or other movable actuating element causes pivotal movement of pivot arm, which compresses a spring. When the float element reaches a predetermined level, the...	07/27/1993
4869459	Valve operators A spring return valve operator for actuating a valve is comprised of a spring return actuator which is loadmatched to a valve load and extracts a large fraction of its spring energy storage capacity, and a controlled actuator which is load matched to the ...	09/26/1989
4726391	Rotary switching device provided with an axially displaceable conical chamber The invention relates to a rotary switching device having a conical chamber permitting modification of the supply to the apparatus to which it is allocated, by reversing the fluids or the directions of circulation of the fluids in the ducts. This switchin...	02/23/1988
4684491	Nozzle seal retaining assembly and positioning assembly therefor A retaining assembly holds a nozzle seal in the nozzle of a nuclear steam generator vessel. The assembly includes two arcuate beams generally following the curvature of the vessel wall, one beam lying generally alongside the divider plate and the other ex...	08/04/1987
4684103	Lever-amplified actuating means for valves and other devices Lever-amplified actuating means for valves and other devices which may be used to replace heretofore employed hydraulic jacks capable of transforming a small force traveling a great distance into a large force being motivated over a small distance, and wh...	08/04/1987
4637588	Non-bolted ringless nozzle dam A nozzle dam for providing a fluid-tight seal across a primary fluid nozzle in the plenum of a nuclear steam generating vessel includes an elongated shaft coupled at one end thereof to an anchor assembly frictionally engageable with the inner surface of t...	01/20/1987
4549719	Mechanical amplifying means for valves and other devices Mechanical amplifying means for valves and other devices which may be used to replace heretofore employed hydraulic jacks capable of transforming a small force traveling a great distance into a large force being motivated over a small distance, and where ...	10/29/1985
4535817	Drive for an oscillatory mechanical system A resiliently prestressed oscillatory system having two discrete operative positions is located by means of toggle levers in the limit positions of the oscillation. One of the toggle levers is in the extended state in the associated operative position and...	08/20/1985
4513629	Shock responsive device An actuator responsive to seismic or other shock forces includes a first swinging arm yieldingly urged pivotally in one direction and releasably retained against such swinging movement by shock responsive means acting to permit swinging movement of the ar...	04/30/1985
4454896	Automatic battery water filler A lightweight acid-resistant plastic dispenser having a handle housing enclosing a valve and valve-operating mechanism and remote therefrom on a rigid tubular extension a plastic water nozzle and a flexible hose connected to a water source. The nozzle of ...	06/19/1984
4442862	Link bar operator for rotating blade dampers An operator for rotating blade dampers including a frame and a plurality of interconnected blades adapted for rotation within the frame, which operator comprises a pair of pivotally interconnected members operatively associated with the blades of the damp...	04/17/1984
4338967	Universal link bar operator and actuator for rotating blade air, smoke, and fire dampers A universal operator is disclosed for rotating blade air, smoke and fire dampers, said dampers comprising a frame and a plurality of interconnected blades within said frame, said interconnection being in the form of a link bar which adapts all of said bla...	07/13/1982
4285493	Valve operator A fail-safe-open actuator for actuating valves and the like which comprises a pair of opposed cylinders joined to define piston chambers, the axes of which are generally perpendicular to a valve stem. Pistons in the cylinders are connected to the valve st...	08/25/1981
4265141	Mechanical force multiplier This multiplier includes a first link unit in a force transferring relationship with one of an actuator and a device to be actuated. A second link unit is pivotably connected to the first link unit in a force transferring relationship with the other of th...	05/05/1981
4251049	Tank valve apparatus A tank valve apparatus particularly adapted for effecting rapid discharge of the liquid contents of a tanker truck or the like, the apparatus being characterized by an improved valve opening apparatus actuated by an air cylinder. The cylinder includes a s...	02/17/1981
4220313	Valve operator The present invention provides a valve operator whereby movement of linkage arms connected to a spring loaded movable pressure plate and to a valve stem support opens and closes the valve diaphragm. A manual override clutch assembly disengages the drive m...	09/02/1980
4206900	Valve operator An actuator for actuating valves and the like which comprises a pair of opposed cylinders, the axes of which are generally perpendicular to a valve stem. Pistons in the cylinders are connected to the valve stem by toggle links, the pistons being resilient...	06/10/1980
4205820	Control valves An installation control valve preferably for use in a fire fighting installation has a pivotal valve disc with an axis spindle to which is connected a lever. A lever retaining mechanism co-operates with the lever and is releasably held to resist lever and...	06/03/1980
4141533	Hydraulically operated shutoff valve A fast closing shutoff valve having a self-contained hydraulic actuating system and an emergency pneumatic back-up system. The hydraulic system includes an accumulator for a high closing rate with a minimum size pump. The actuating system operates through...	02/27/1979
3972452	Dispenser closure The invention relates to a dispenser closure formed of elastomeric material which is suitable for fitting to the discharge spout of a liquid container formed of a flexible film material such as polyethylene film and housed in a cardboard casing. The closu...	08/03/1976

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Class 251/280 - Toggle