Class 92/13.3 - Stroke of one working member adjustable relative to another

Subclass of Class 92 - Expansible chamber devices
Definition: Apparatus in which the extent of movement of said working
No. of patents: 39
Last issue date: 07/31/2007

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Number	Title	Issue Date
7249936	Dual capacity compressor A dual capacity compressor, which can maintain a fixed eccentricity and stable operation, even when the compressor is rotated in both the regular and reverse directions in order to provide multiple compression capacities, is provided. This dual capacity compressor i...	07/31/2007
7100743	Crank shaft in dual capacity compressor A crankshaft in a dual capacity compressor is disclosed, which causes oil contained in a lower portion of the compressor to flow up to an upper portion thereof with respect to all the rotational directions of a motor. A crank shaft (100) includes a driving sh...	09/05/2006
6755624	Dual capacity compressor A dual capacity compressor, which can maintain a fixed eccentricity and stable operation, even when the compressor is rotated in both the regular and reverse directions in order to provide multiple compression capacities, is provided. This dual capacity compressor i...	06/29/2004
6651546	Multi-stroke cylinder A multi-stroke air cylinder providing a precisely directed and controlled stroke in the face of lateral, torsional and tilting loads on a tooling plate. The multi-stroke cylinder utilizes a plurality of mechanically linked pneumatic or hydraulic pistons h...	11/25/2003
6190137	Reversible, variable displacement compressor A reciprocating piston compressor having at least one cylinder, a reciprocable piston disposed in the cylinder, a crankshaft rotatable in both a forward and a reverse direction, the crankshaft having a cylindrical eccentric portion, a latching member pivo...	02/20/2001
5570769	Linear and rotary actuator combination A rotary actuator and a linear actuator are combined to provide an output shaft with independent linear and rotary motion. The linear actuator causes the rotary actuator to move linearly, and there is a guide which restricts the movement of the rotary act...	11/05/1996
5561980	Tandem master cylinder A tandem master cylinder having a small-diameter cylinder formed on the same axis as a cylinder bore in a floating piston, communicating with a primary fluid pressure chamber and a secondary fluid pressure chamber. A small-diameter piston is movably inser...	10/08/1996
5558005	Multi-section actuator Actuator (1) adapted to be actuated by pressurized fluid as shown for example in FIG. 3, having a plurality of piston-cylinder units (A, B, C, D, E, F) arranged one behind the other and displaceable in the direction of a longitudinal axis (9), in which ad...	09/24/1996
5404983	Turn-act multiaction device A multi directional actuator capable of moving a shaft in at least two directions independently including one linear and one rotary movement. A base plate is provided to receive a first actuator having a linearly moving shaft which is extended from and re...	04/11/1995
5207061	Master cylinder with externally adjusted secondary compensation The master cylinder (10) with externally adjusted secondary compensation comprises a tandem master cylinder (10) having primary and secondary piston assemblies (20, 30) disposed within a stepped bore (12). The portion of the bore containing the secondary ...	05/04/1993
5195419	Method for assembling a piston-and-cylinder unit and force transmission element There is presented a method for assembling a tandem master cylinder and a vacuum brake power booster of a hydraulic brake system for automotive vehicles. Air is injected via the pressure connections (19, 36) of the pressure chambers (11, 18) associated wi...	03/23/1993
5154107	Method for adjusting the lost motion in a tandem master cylinder and tandem master cylinder for carrying out this method The tandem master cylinder comprises, in a bore, a primary piston defining with a secondary piston a primary chamber, the secondary piston defining with the bottom of the bore a secondary chamber, the primary and secondary chambers having respectively pri...	10/13/1992
4811624	Hydraulically actuated stroke adjusting device In a stroke adjusting device on pumps, in particular proportioning pumps, a hydraulic actuation occurs due to the fact that a hollow shaft, which guides in its interior a sliding shaft, is formed as a hydraulic cylinder, in which the sliding shaft, design...	03/14/1989
4766803	Variable stroke hydraulic cylinder control linkage A control linkage for varying the length of stroke of a hydraulic cylinder is disclosed wherein a slide member is telescopically received within a bracket member, one of these members being connected to the extension end of the hydraulic cylinder while th...	08/30/1988
4639169	Mineral mining installation A mineral mining installation comprises a roof support unit and an advance mechanism. The roof support unit has a floor sill constituted by two floor girders. The advance mechanism comprises a hydraulic advance ram, the advance ram having a relatively-dis...	01/27/1987
4538506	Cylinder with two-step movement In a cylinder with two-step movement there is in a housing (7) a first piston (6) which slides in contact with the inside of the housing. A second piston (10), which supports a piston rod (11), which moves sealingly through a first end-piece (8) also slid...	09/03/1985
4509903	Catalyst slave pump The novel slave pump having a piston rod having a fluid passage through which catalyst is discharged for ultimate use. The slave pump also has an exterior casing which holds it together without contacting the catalyst or other fluids being pumped. A novel...	04/09/1985
4494447	Self-latching eccentric cam for dual stroke compressor or pump For a dual capacity refrigerant compressor of the type which has an eccentric cam rotatable on a crankpin between two opposite positions which changes the total eccentricity of the crankpin and cam so as to obtain two different stroke lengths, the rotatio...	01/22/1985
4479419	Dual capacity reciprocating compressor A multi-cylinder compressor 10 particularly useful in connection with northern climate heat pumps and in which different capacities are available in accordance with reversing motor 16 rotation is provided with an eccentric cam 38 on a crank pin 34 under a...	10/30/1984
4442754	Robotics positioning system In this fluid powered positioning system, a sliding assembly includes a slide plate that moves linearly with respect to a frame. A plurality of "working" linear cylinder actuators are mounted to the frame. Each includes a piston and a rod which extends th...	04/17/1984
4416588	Air compressor for paint pumps A combination airless paint pump and air compressor wherein a prime mover drives an eccentric cam wheel within an oil reservoir housing. A piston, movably received within a housing bore is engageable with a periphery of the cam wheel to load an hydraulic ...	11/22/1983
4392508	Proportional mixing system with water motor drive A proportional mixing system with water motor drive is provided for mixing water with one or more chemicals in selected proportions. The system is completely water driven and automatically meters out a set amount of water for mixing in desired proportion ...	07/12/1983
4391291	Apparatus for reconstituting a concentrate An apparatus of the prime mover type for reconstituting a liquid concentrate. Water under pressure, supplied by a municipal system, alternately flows into and out of opposite ends of a first cylinder in which a double-acting piston is slideably mounted, t...	07/05/1983
4388052	Fixed displacement pump with variable capacitance flow regulator A fixed displacement pump including a variable capacitance flow regulator for absorbing the excess fluid flow from the pump which is not required by a hydraulic system. The variable capacitance flow regulator, in a hydraulic embodiment, includes a pair of...	06/14/1983
4236877	Highly accurate low volume metering pump Disclosed is a dual pump with priming reservoir assembly for dispensing a fluid chemical at a low flow rate into a substance with which the fluids is to be mixed. It includes adjacent primary and secondary piston-type pumps and a separation chamber or pri...	12/02/1980
4231723	Metering and conveyor arrangement A metering and conveyor arrangement for liquids to be mixed, in which several parallel-connected delivery pumps are actuated by a drive unit. Each liquid is assigned to a pair of delivery pumps. Each pair consists of two piston pumps alternately performin...	11/04/1980
4225110	Actuator for converting linear to rotary motion An actuator is provided for converting linear to rotary motion to manipulate a valve. Preferably, the actuator has a rotor which is rotatable about an axis and is operably associatable with the valve member. A pair of motors, preferably actuated by pressu...	09/30/1980
4203570	Power-operated loading gate for centrifugal machines incorporating an auxiliary drive device A loading gate assembly for a heavy cyclical centrifugal machine used for separating liquid from solids includes a hollow body forming a spout outlet, a face surrounding the end of the outlet and a gate slidable on the face between a fully closed position...	05/20/1980
4189070	Reaction injection molding machine A machine for metering and mixing two or more liquids, which are rapidly reactive to form a solid polymer, immediately prior to the injection of the liquids into a molding machine. The machine is characterized by two or more metering cylinders into which ...	02/19/1980
4186649	Regulators A regulator for regulating the output of an output shaft is discosed, the regulator comprising a number of chambers to and from which working medium can be fed and discharged in dependence upon control means to effect axial movement of the output shaft vi...	02/05/1980
4182387	Automatic filling machine A filling machine for filling several containers with predetermined amounts of a product in which the several filling units are actuated by a common driving member; the common driving member itself is actuated by two eccentric drive mechanisms each includ...	01/08/1980
4090818	Adjustable metering pump A reciprocating adjustable stroke positive displacement fluid pump is provided with an expandable chamber driven in the displacement or feed direction by an eccentric drive acting through a driven member. The eccentric drive moves the expandable chamber t...	05/23/1978
4087970	Hydrostatic transmission control A hydrostatic transmission drive pump swash plate control including a control arm and a cam which are mounted on axes perpendicular to one another. The control arm is connected to the swash plate to effect simultaneous movement of the control arm and swas...	05/09/1978
4076465	Volumetric proportioning diluter A reciprocating device for proportionating volumes of two distinct and different fluids within the same housing by a simultaneous fluid drawing from a supply source into the separate compartments provided inside an elongated housing of differential diamet...	02/28/1978
4061080	Position regulator A position regulator is provided which is effective to control, via a control unit, a pressure medium circuit to operate at different working pressures. The regulator comprises two or more pressure transmitting elements which divide an internal space into...	12/06/1977
4031778	Drive system A double-eccentric variable drive system is disclosed comprising a drive shaft, two eccentrics mounted on the drive shaft to be driven thereby, and means for varying the eccentricity of both of the eccentrics simultaneously. The means in question comprise...	06/28/1977
4028018	Non-pulsing apparatus Variable stroke pumping apparatus suitable for pumping chemicals in a pulseless manner irrespective of the stroke. The apparatus comprises a plurality of pumps connected in flow paths extending between a fluid inlet and outlet and a central housing contai...	06/07/1977
3969046	Metering pump system A system for metering and pumping a plurality of fluids is diclosed. The system includes a pumping stage which has a plurality of piston pumps extending from a rigid support to a rack hinged at one end. A valve stage is provided having a valve body with a...	07/13/1976
3965758	Controllable pumps Two or more reciprocating pumps are controlled to deliver fluids in adjustable proportions. The pumps are connected to respective actuating levers. Each lever is reciprocated about a pivot, whose position along the lever is adjustable to vary the stroke l...	06/29/1976

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Class 92/13.3 - Stroke of one working member adjustable relative to another