Patents by Inventor Constantine Kosarzecki
Constantine Kosarzecki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5546980Abstract: A cartridge valve for installation in a manifold having a receiving cavity which includes an inlet port and an outlet port. The cartridge valve includes a cavity adaptor for engaging the cartridge valve with the receiving cavity in the manifold, a cage assembly which includes a floating cage body within a portion of the cavity adaptor, and a control device which controls the flow through the cartridge valve. The cavity adaptor has walls defining a primary bore and the cage body has walls defining a second bore. The cavity adaptor and the cage body are sized and dimensioned so that an interior dimension of the cavity adaptor is greater than an exterior dimension of the corresponding portion of the cage body. The dimensional difference between the interior surface of the cavity adaptor and the exterior surface of the cage body defines a radial passage. A knob assembly associated with the cartridge valve includes a split collet which is positively retained on a handle portion.Type: GrantFiled: February 2, 1995Date of Patent: August 20, 1996Inventor: Constantine Kosarzecki
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Patent number: 5158150Abstract: A hydraulic system for powering a vehicle for human transporation. The output of a hydraulic pump is connected to at least one hydraulic motor by a hydraulic circuit, the motor(s) being mechanically connected to drive the vehicle. The hydraulic circuit establishes the direction of fluid flow through the motor(s). The pressure drop across at least a portion of the hydraulic circuit is monitored and the flow of fluid to the circuit is regulated accordingly.Type: GrantFiled: January 24, 1992Date of Patent: October 27, 1992Assignee: Hydra-Powr, Inc.Inventors: Stanley C. Askeland, Constantine Kosarzecki
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Patent number: 4921547Abstract: A proportional priority flow regulator valve structure comprising a cartridge-type modulated orifice valve element (MOS) in a composite multiple element valve assembly. The MOS valve operates in an hydraulic circuit to receive pressurized fluid from a source of supply and responds to variations in fluid pressure and fluid flow rates acting hydraulically on a pair of inter-dependent spring-biased spools of the valve to provide a modulated orifice for delivery of a controlled fluid flow.Type: GrantFiled: July 26, 1989Date of Patent: May 1, 1990Assignee: Vickers IncorporatedInventor: Constantine Kosarzecki
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Patent number: 4653527Abstract: A pressure relief valve is disclosed. The pressure relief valve comprises a valve housing including fluid passageways, a poppet valve disposed within the housing, a piston disposed within the housing, and spring means disposed intermediate the piston and the poppet valve for biasly urging apart the piston and the poppet valve. The poppet valve has a valve seat which, together with a portion of the housing, defines a variable valve area. The piston has a piston area, relatively greater than the variable valve area, for modulating flow through, and pressure drop across, the poppet valve. The pressure relief valve preferably includes an orifice disposed within the housing for selectively controlling flow of hydraulic fluid through the housing passageways to the piston. The housing preferably includes an elongated cage within which the poppet valve is longitudinally slidable.Type: GrantFiled: October 21, 1985Date of Patent: March 31, 1987Assignee: Modular Controls CorporationInventor: Constantine Kosarzecki
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Patent number: 4531536Abstract: A novel flow divider-combiner valve unit is disclosed. A valve body includes fluid passageway means for controlling fluid flow through the divider-combiner valve unit. The fluid passageway means comprises: a cavity, first, second and third passageways; first and second pressure-responsive elements; and biasing elements for retaining the pressure-responsive elements substantially in open positions until a predetermined substantial pressure differential exists in the divider-combiner valve unit. The biasing elements also enable the pressure-responsive elements to move substantially independently of each other toward closed positions when a first pressure differential in the divider-combiner valve unit exceeds the predetermined pressure differential. The biasing elements additionally cause the pressure-responsive elements to move substantially in unison when a second pressure differential in the divider-combiner valve unit exceeds the predetermined pressure differential.Type: GrantFiled: September 6, 1984Date of Patent: July 30, 1985Assignee: Modular Controls CorporationInventor: Constantine Kosarzecki
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Patent number: 4341148Abstract: There is disclosed a new and improved hydraulic sequencing valve of the type which includes a movable valve spool within the body to sequence operation of the valve. An aperture through one spool or chamber is arranged for direct fluid communication with a tank port upon initial movement of the spool to increase the differential fluid pressure across the chambers and accelerate the sequencing movement of the spool.Type: GrantFiled: September 30, 1980Date of Patent: July 27, 1982Assignee: Modular Controls CorporationInventor: Constantine Kosarzecki
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Patent number: 4300584Abstract: A hydraulic sequencing valve is disclosed. A hollow spool is slidably carried in a valve body for motion between a first position in which fluid is caused to flow out a valve first port and a second position in which fluid is caused to flow into the first port. An annular partition is provided within the spool hollow, which divides the spool hollow into two chambers. When a pressure rise is experienced within the spool, a pre-set valve element trips, reducing pressure within one spool chamber. This pressure change shifts the spool to a second position. A check valve is provided in a separate valve body conduit. This check valve operates to assure that the valve spool remains in its second position until the valve and associated hydraulic system have completed the full cycle of operation.Type: GrantFiled: June 6, 1980Date of Patent: November 17, 1981Assignee: Modular Controls CorporationInventor: Constantine Kosarzecki
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Patent number: 4223693Abstract: A counterbalance valve assembly for use in a hydraulic system of the type including a hydraulic cylinder for raising and lowering a load provides gradual and continuous exhaustion of hydraulic fluid from the cylinder to facilitate smooth lowering of the load. The assembly includes a counterbalance valve having an outer barrel and an inner barrel forming an annular channel therebetween through which the exhausted fluid passes. The outer barrel includes an inner valve seat and the inner barrel includes an outer relief valve surface which engages in the annular channel to form a relief valve. The inner barrel is movable in a linear direction within the outer barrel for opening and closing the relief valve as the load is lowered. To avoid abrupt changes in the exhausted cylinder fluid flow rate, and thus to avoid abrupt variations in the load lowering rate, the relief valve surface has a long tapered configuration rendering the exhausted fluid flow rate less sensitive to inner barrel movement.Type: GrantFiled: July 27, 1978Date of Patent: September 23, 1980Assignee: Modular Controls CorporationInventor: Constantine Kosarzecki
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Patent number: 4078574Abstract: A modular hydraulic valve is disclosed, which comprises a valve manifold and a number of valve cartridge elements disposed at least partly within cavities defined in the valve manifold. To encourage interchangeability and reduce manufacturing costs, each cavity includes a number of axially aligned steps of progressively decreasing diameter. The outermost steps of each cavity is defined by a diameter identical with the outermost step diameter of all other cavities, regardless of whether those other cavities define one or more than one additional steps. Likewise, the second outermost step in each cavity is defined by another diameter which is substantially identical with the second step diameter of all other cavities having two or more steps.Type: GrantFiled: October 22, 1976Date of Patent: March 14, 1978Assignee: Modular Controls CorporationInventor: Constantine Kosarzecki