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"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 7263829 | Pump A hydraulic pump apparatus having an internal sump formed by a housing having an internal portion and an end cap secured to the housing. A rotatable cylinder block is located in the sump and driven by an input shaft extending into the housing. The pump apparatus als... | 09/04/2007 |
| 7082756 | Device for detecting failure of hydraulic motor, and hydraulic vehicle A failure detection device for a hydraulic motor of the present invention comprises a hydraulic pump 3 that is driven by a prime mover 2; a hydraulic motor 1 that is driven by hydraulic oil discharged from the hydraulic pump 3; an abnorma... | 08/01/2006 |
| 7004062 | Elevator pit receptacle with float valve assembly An elevator pit receptacle and float valve assembly provide for the safe displacement and collection of seeped hydraulic fluid from an elevator cylinder/piston assembly. The receptacle is elevated above the ground yet is below the cylinder seepage ring. A float valv... | 02/28/2006 |
| 7001153 | Peristaltic injector pump leak monitor A pump leak monitor for use with a peristaltic pump comprises a pump housing and a pair of electrical contacts disposed along a bottom end of the pump housing. The electrical contacts are located such that the contacts are immersed in fluid when the pump is leaking.... | 02/21/2006 |
| 6393839 | Pressurized medium delivery device Pressurized medium delivery device with a pump, a suction pipe, at least one pressure pipe and a pressurized medium supply volume in a pressurized medium supply container.... | 05/28/2002 |
| 5623870 | Oil mist eliminator for a press oil control system An oil mist eliminator filter used with a dynamic oil control mechanism consisting of a vacuum-inducing jet-pump to vacuum oil leaking from about an oil seal, an oil seal located around the drive piston on the press slide, a drain port located about the h... | 04/29/1997 |
| 5557931 | Charge pump for axle driving apparatus including hydrostatic transmission Means for connecting auxiliary pumps and charge pumps to an axle driving apparatus to transfer power from a light duty vehicle engine to an output axle, wherein the charge and/or auxiliary pumps are mounted to the external housing for an integrated hydros... | 09/24/1996 |
| 5555727 | Auxiliary pumps for axle driving apparatus including hydrostatic transmission Means for connecting auxiliary pumps and charge pumps to an axle driving apparatus to transfer power from a light duty vehicle engine to an output axle, wherein the charge and/or auxiliary pumps are mounted to the external housing for an integrated hydros... | 09/17/1996 |
| 5469704 | Hydraulic drive apparatus comprising a cylinder The invention relates to a hydraulic drive apparatus having a cylinder. Said cylinder comprises a piston movably mounted in a working chamber, a piston rod which is guided towards the outside through a cylinder head and a wear resistant primary seal and a... | 11/28/1995 |
| 5467705 | Oil control system for a press A dynamic oil control mechanism for a press including a vacuum inducing ejector or jet-pump to vacuum oil leaking from about an oil seal. The oil seal is located around the drive piston on the press slide to prevent oil migration from the press crown to t... | 11/21/1995 |
| 5173019 | Pump including secondary containment with alarm system A pump assembly including an impeller mounted on a shaft for rotation in an impeller casing to move liquid through the casing, the shaft being supported by bearings located in a bearing housing which contains bearing lubricating fluid, a primary seal prov... | 12/22/1992 |
| 5146748 | Axle driving apparatus An axle driving apparatus which houses in a transmission casing thereof a hydraulic motor and a hydraulic pump of a hydro-static-transmission and disposes in the transmission casing a center section for connecting the hydraulic motor and hydraulic pump, t... | 09/15/1992 |
| 5050380 | Means for receiving and subsequently emptying hydraulic fluid from a hydraulic system A means for receiving and subsequently emptying hydraulic fluid from a hydraulic system is described. It comprises a working cylinder (1) and a supply conduit (8) disposed between a pump and the working cylinder for supplying hydraulic fluid at high press... | 09/24/1991 |
| 5042250 | High-back pressure power steering device A hydrostatic power steering device is disclosed, which may be either a fluid controller (15) or a torque generator 111. The device is of the type including a housing (19;135) defining a fluid inlet port (29;113) and a return port (31;115). The device inc... | 08/27/1991 |
| 4945724 | Apparatus for collecting hydraulic leakage fluid Hydraulic fluid leakage collection apparatus that includes an annular collection chamber that is carried in a cylindrical member within which a piston member is movable. A seal and wiper are carried by the clamp cylinder of an injection molding machine to... | 08/07/1990 |
| 4715180 | Hydraulic lift mechanism The invention contemplates hydraulic-lift mechanism which employs a power integrator in the connection between a charged hydraulic accumulator and the actuator for a vertically positionable load; the power integrator, additionally, has a prime-mover conne... | 12/29/1987 |
| 4445332 | Hydraulic hose assembly and method High-pressure hydraulic hoses are employed in hydrostatic drive systems to interconnect the transmission and motors thereof. It is imperative that fluid leakage be held to a minimum, or preferably eliminated, particularly where a vehicle employing the dri... | 05/01/1984 |
| 4432442 | Hydrodynamic torque-transfer unit, especially a hydrodynamic brake The disclosure concerns a hydrodynamic torque transfer unit, especially in the form of a hydrodynamic brake. The unit includes a working chamber with a stator and a rotor therein. The rotor is supported on a rotating shaft which has seals thereon outside ... | 02/21/1984 |
| 4425758 | Maintaining hydrostatic system control pressure A hydrostatic transmission (10) includes a variable displacement pump (12) for driving a fluid motor (14) in first and second directions. First and second high pressure conduits (20,22) connects the pump (12) and motor (14) in a continuous fluid circuit. ... | 01/17/1984 |
| 4329064 | Hydrostatic-mechanical drive for vehicular cement mixers In a cement-mixer truck having a mixing drum rotated via a step-up transmission by a hydrostatic motor in turn energized by a power pump driven by the vehicle engine, the motor is disposed in a chamber at least partially filled with coolant replenished by... | 05/11/1982 |
| 4241578 | Fluid storage tank for an industrial vehicle A hydraulic fluid storage tank for an industrial vehicle. A small surge tank (44) is mounted on top of a main tank (10) and communicates with the main tank via a drain back hole (49) formed in the top of the main tank. A first breather tube (46), having o... | 12/30/1980 |
| 4168652 | Power transfer unit A power transfer unit for transferring power between two separate hydraulic circuits comprising a casing, a pair of cylinder blocks in the casing, cylinders within each cylinder block, a piston in each cylinder, a leakage chamber within the casing, cam me... | 09/25/1979 |
| 4074782 | Hydraulic system of a skid steer loader A skid steer loader comprising an improved loader main frame and including an operator's compartment designed to present a low profile vehicle particularly suitable for low clearance applications. A improved hydraulic system for the vehicle includes a new... | 02/21/1978 |
| 4033127 | Hydraulically-powered vehicle accessory system supercharged by hydraulic vehicle drive system A hydraulic system for mobile industrial equipment wherein the wheels or tracks of the mobile equipment are driven by a hydraulic transmission system having an engine-driven pump assembly, and wherein the hydraulic accessories mounted on the equipment are... | 07/05/1977 |
| 3943717 | Contaminant removal from a hydraulic cylinder A hydraulic cylinder comprises a piston reciprocally mounted in a housing thereof. A pair of annular sealing means, slidably receiving a rod of the piston, are disposed on either side of an annular chamber which has pressurized fluid pumped therethrough f... | 03/16/1976 |
