"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 5519267 | Energy saving electromotive engine An energy saving electromagnetic motor in which a pressure tank provides pressurized fluid to a turbine, rotating the turbine and a crankshaft. The crankshaft is connected via a clutch and axle to a skin comprising a plurality of magnets, which thus revol... | 05/21/1996 |
| 5048292 | Dual pump traverse and feed system A single rod three chamber fluid motor is driven in a forward stroke which includes a rapid initial advance followed by a relatively short and slow feed stroke under high pressure. The rapid advance is performed by a closed loop system in which a high dis... | 09/17/1991 |
| 4680930 | Hydraulic control circuit and valve assembly A hydraulic power and control system for operating a reciprocating hydraulic mechanism including pump means connected to the hydraulic mechanism, a continuous torque hydraulic motor, a direction control driven by the motor to sequentially direct hydraulic... | 07/21/1987 |
| 4581893 | Manipulator apparatus with energy efficient control Manipulator apparatus is provided with an energy efficient control arrangement. The control arrangement in a point-to-point mode of operation utilizes a servo valve to selectively admit fluid from a pressurized source to one end of a cylinder. A piston is... | 04/15/1986 |
| 4571939 | Hydraulic well pump A hydraulic well pump for operating a pump sucker rod string including a hydraulic cylinder assembly for raising and lowering the sucker rod string and a fluid counterbalancing system for offsetting the combined weight of the reciprocating service equipme... | 02/25/1986 |
| 4404800 | Gas energized engine system A Gas Energized Engine System, according to the present invention, is adapted to drive a piston type gas energized engine having a piston and cylinder system that is operatively interconnected with a crankshaft that transmits rotary force to any suitable ... | 09/20/1983 |
| 4184331 | Pumping system A pumping system for pumping liquid clay or slip into a filter press comprises a hydraulically-powered double-acting ram for pumping the slip and a hydraulic control circuit for the ram. The control circuit includes a pair of hydraulic pumps one of which ... | 01/22/1980 |
| 4043122 | Fluid cam assembly Apparatus for imparting reciprocating motion to a double-acting hydraulic piston and cylinder motor assembly. Hydraulic fluid is supplied through pressure lines alternately to opposite ends of the cylinder by two pumps. The pumps are operated so that one ... | 08/23/1977 |
| 3940930 | Hydraulic system for injection molding machine A fixed platen is supported in the machine frame, and a movable platen is connected to two parallel rods which project rearwardly through the fixed platen. Each rod carries a first piston and each piston is slidably received in a first cylinder. These cyl... | 03/02/1976 |