Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 5203172 | Electromagnetically powered hydraulic engine A hydraulic engine apparatus and method that converts pulsed electromagnetic energy into mechanical force and motion. The engine apparatus produces usable mechanical power by pumping action made possible by a reciprocating piston in a cylinder acting on a... | 04/20/1993 |
| 5148067 | Latching linear motor A linear motor provides stepwise, incremental advance of a moveable output member. First and second, spaced latches are movably coupled to the output member. A selectively energizible driver engages and moves the first latch into fixed engagement with the... | 09/15/1992 |
| 4874299 | High precision pump A precision pump for moving small volumes of fluid includes an electromagnet in which is reciprocally mounted an armature carrying a diaphragm on one end such that upon reciprocal movement of the armature an alternating high and low pressure can be create... | 10/17/1989 |
| 4749893 | Magnetically actuated engine This invention is an engine with reciprocating piston slidingly mounted within a cylinder and connected to a rotatable shaft. The piston is driven back and forth within the cylinder by a pair of electromagnets to obtain rotary power. A secondary winding a... | 06/07/1988 |
| 4697113 | Magnetically balanced and centered electromagnetic machine and cryogenic refrigerator employing same A cryogenic refrigerator includes opposing pistons driven by linear electromagnetic machines. Magnetic elements on armatures reciprocate adjacent to first and second flux paths and a transfer of flux between the flux paths with movement of either armature... | 09/29/1987 |
| 4684834 | Electromagnetic motor An electromagnetic motor apparatus is used for converting electrical energy into rotary motion and includes a housing having a crankshaft rotably mounted therein. A plurality of stators form cylinders and are mounted onto the housing. A plurality of armat... | 08/04/1987 |
| 4631455 | Method and apparatus for converting a conventional internal combustion engine into a high speed electric motor and generator An electric starter motor and generator is integrated into the structure of an internal combustion engine by making the ferromagnetic pistons of the engine the relatively moving elements in the starter and generator. A coil is solenoidally wound around ea... | 12/23/1986 |
| 4631430 | Linear force motor A linear force motor has an elongated body provided with an annular chamber therewithin. An armature is arranged within the chamber for axial movement relative thereto. Two axially-spaced permanent magnets, with their like poles arranged to face one anoth... | 12/23/1986 |
| 4578604 | Solenoid actuators Solenoid actuators which include a stator assembly comprising a plurality of spaced parallel poles having coplanar end faces and symmetrically spaced side faces. An armature is mounted for attraction to and motion with respect to said stator, at least a c... | 03/25/1986 |
| 4523114 | Magnetic reciprocating motor A magnetic reciprocating motor including a block with a crankshaft journalled therein and a cylinder with inboard and outboard portions mounted thereon. A piston with a piston magnet is slidably disposed in the cylinder inboard portion. A carrier assembly... | 06/11/1985 |
| 4517477 | Magnetic motor A plurality of permanent magnets are arranged to have spaced apart alternating opposite poles at the peripheral of the rotor. A stator magnet alternately attracts the first pole and repels the second pole of each sequential permanent magnet to cause rotat... | 05/14/1985 |
| 4510420 | Servo rotary motor A modified form of apparatus is disclosed, and the preferred and illustrated embodiment thereof utilizes a pulse width modulator circuit to control the duty cycle pulses applied to coils for rotating an engine. The pulse width modulator (PWM) cooperates w... | 04/09/1985 |
| 4498032 | High torque digital stepping motor and control Three radially extending push rods (26, 28, 30) make contact with an undulating cam surface on the periphery of a cam (10). The push rods (26, 28, 30) are driven inwardly by electrical solenoids (94, 96, 98) or fluid motors (106, 108, 110). At the end of ... | 02/05/1985 |
| 4473763 | Solenoid motor A solenoid motor comprising a crankshaft with a plurality of solenoid means positioned adjacent thereto. Each solenoid means comprises a cylindrical core with an electrical coil wound therearound. A piston means is slidably mounted in each of said cores a... | 09/25/1984 |
| 4395649 | Linear electromagnetic vibrator An electrically driven linear vibrator has swing drive for vibrating troughs, jarring tables or the like comprises a stator with an exciter winding, an armature guided for linear movement in a direction transverse to the field produced by the stator and a... | 07/26/1983 |
| 4384221 | Motor A motor includes two reciprocating electromagnets. The magnets are energized at positions when the total repulsive forces of the electromagnets can be applied to a single crankshaft. The electromagnets are energized when the crankshaft is 90° past top de... | 05/17/1983 |
| 4359673 | Electromagnetically actuated linear reciprocating self-timed motor An electromagnetically actuated, linear reciprocating self-timed motor employs plural reciprocating electromagnet pistons which oscillate between opposed fixed electromagnets having primary and secondary coils. The fixed electromagnets are alternately ene... | 11/16/1982 |
| 4345174 | Electromagnetic engine An electromagnetic engine and method capable of producing a high amount of mechanical power at a high efficiency. An electromagnet or piston operates within a cylinder having a stepped bore therein. The cylinder reciprocates while the piston only pivots. ... | 08/17/1982 |
| 4317058 | Electro-magnetic reciprocating engine An electro-magnetic reciprocating engine and method for converting an internal combustion engine to an electro-magnetic reciprocating engine wherein the cylinders are replaced with nonferromagnetic material and the pistons reciprocally disposed therein ar... | 02/23/1982 |
| 4300067 | Permanent magnet motion conversion device A permanent magnet motion conversion device includes spaced stationary permanent magnets and a carriage having permanent magnets located adjacent the ends of the carriage. The carriage shuttles back and forth between the permanent magnets as a result of m... | 11/10/1981 |
| 4187440 | Electromagnetic engine Intermediate ram operated electromagnetically connects at least two cylinders to operate them reciprocally and drive a vehicle or the like.... | 02/05/1980 |
| 4129795 | Electromagnetic piston engine The subject of this invention is a piston engine without cranks and crankshaft. Its pistons are operated by neither steam nor gaseous combustion. It depends on electrical energy, but in a manner quite different from those of the conventional electric cars... | 12/12/1978 |
| 4128020 | Energy storage and transmission apparatus An apparatus for storing and transmitting mechanical energy which utilizes a flywheel having a plurality of flywheel magnets located about the periphery thereof. An actuator is disengagably coupled to the flywheel for supplying rotary kinetic energy there... | 12/05/1978 |
| 4093880 | Magnetically operable engine A combination device for developing a mechanical output from electrical energy which uses at least one electrical magnet solenoid, and preferably a plurality of same, together with an associated timing mechanism for actively controlling the time and degre... | 06/06/1978 |
| 4024421 | Magnetically operable engine or power plant A magnetically operable engine or power plant embodying a rotary crankshaft having two or more offset cranks which, by means of respective connecting rods pivoted thereto, and also to the sliding cores or armatures of electromagnets, are actuated to apply... | 05/17/1977 |
| 4020370 | Electric motor for general purposes The within invention, which is directed to effective use of electric energy is concerned with an improved electric motor which, as a substitute for the conventional operative arrangement of rotor and field coils, instead has the rotor urged through moveme... | 04/26/1977 |
| 4019103 | Electromagnetic motor and generator An electromagnetic motor and generator is disclosed having a pair of solenoids wound on a cylinder, each of said solenoids comprising three separate but connected windings. A magnetizable piston is positioned for reciprocation in the cylinder and is conne... | 04/19/1977 |
| 4012675 | Switching system for solenoid reciprocator A switching system for a solenoid reciprocator motor of a type which has a piston arranged to reciprocate into and out of a solenoid. The switch is an SCR rectifier and the trigger lead to close the switch is pulsed by a commutator operating in unison wit... | 03/15/1977 |
| 3967146 | Magnetic motion conversion device A motor utilizing permanent magnets or electromagnets wherein the magnets are arranged with like poles facing one another in a normally repelling position. A magnetic flux field suppressor having a non-magnetic portion and a magnetically permeable portion... | 06/29/1976 |
| 3942913 | Rotating cylinder wheel and ball-piston wheel motor, generator, and pump assembly There is disclosed a cylinder wheel connected in rotary engagement with a ball-piston wheel, the cylinder wheel having a multiplicity of cylindrical cavities, each cavity having at least one coil with a plurality of electrically conductive turns circularl... | 03/09/1976 |
