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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| Application No. | Application Title | Issue Date |
| 20120068474 | MICROSYSTEMS FOR CONVERTING PRESSURES AND COMPRESSION The invention relates to a microsystem for converting a difference in pressures in a fluid into mechanical movement, this microsystem comprising:—an inlet nozzle (6) for compressed fluid and an outlet nozzle (8) for expanded fluid,—at least two arms (<... | 03/22/2012 |
| 20110303184 | Internal combustion engine A Wankel-type rotary engine comprising a longitudinal housing divided on two parts by a partition having a window, a rotor passed through the window and engaged with an end wall sliding in the cavity, and forming together with the cavity, end wall and partition working ... | 12/15/2011 |
| 20110186006 | METHOD FOR PROVIDING A THERMO-DYNAMIC CYCLE OF A COMBUSTION ENGINE, IN PARTICULAR OF A ROTARY TYPE WITH A DOUBLE CENTER OF ROTATION The invention regards to a method for providing a thermo-dynamic cycle of the internal combustion engine (1), with double center of rotation, for better exploitation of the propulsion in the phase of combustion from the mixture gas, characterized from the fact th... | 08/04/2011 |
| 20110023814 | Isochoric Heat Addition Engines and Methods Engines and methods execute a high efficiency hybrid cycle, which is implemented in a volume within an engine. The cycle includes isochoric heat addition and over-expansion of the volume within the engine, wherein the volume is reduced in a compression portion of the cy... | 02/03/2011 |
| 20110017169 | ROTARY COMBUSTION ENGINE AND HYDRAULIC MOTOR A rotary engine and a hydraulic motor including non-rotary outer and inner casings; a power shaft with an eccentric part; a driving eccentric ring between the outer and inner casings and mounted on the eccentric part; a combustion or pressure chamber between the eccentr... | 01/27/2011 |
| 20100326753 | Rotary Piston Internal Combustion Engine Power Unit A power unit (14) which has a spark-ignition engine unit (1) of the Wankel type including a three flanked rotary piston (R) mounted on an eccentric shaft (63) rotating eccentrically within a cavity within a two lobed epitroochoidal inner peripheral ... | 12/30/2010 |
| 20100300400 | ROTARY INTERNAL COMBUSTION ENGINE Internal Combustion Engine, Rotary Engine Type, with Distinct Conception, Durability and Performance, Applied to all Types of Vehicle or Industrial Equipment, represented by an inventive solution of a rotary engine, which aggregates value by promoting a distinct concept... | 12/02/2010 |
| 20100132658 | Star engine Star Engine is a four stroke internal combustion engine, which converts the eccentric motion of the center of the rotor directly to a rotary motion of a main shaft. This engine is formed by the principle a small circle rolling inside a larger one ( | |
| 20100122685 | Spherical two stroke engine system The invention relates to heat engines and more specifically to positive displacement internal combustion engines, and is particularly concerned with rotary and oscillating spherical engines i.e. engines, in which piston executes rotary/oscillating motion and combustion ... | 05/20/2010 |
| 20100108021 | ROTARY PISTON ENGINE The invention relates to a rotary piston engine with a frame, a cylinder liner mounted rotatably in the frame, a rotor mounted coaxially in the cylinder liner and a gear mechanism connecting the frame, the cylinder liner and the rotor, where the gear mechanism is outsid... | 05/06/2010 |
| 20100012077 | Internal combustion two stroke rotary engine system The invention provides the proper form for the rotary positive displacement internal combustion engine. The construction of the engines according to the invention is based on a specific form of four bar mechanism and features unique simplicity (only three moving parts, ... | 01/21/2010 |
| 20090308347 | PLANETARY ROTARY ENGINE A planetary engine includes a charge compression system for compressing a charge of air and/or an air and fuel mixture that is precompressed by rotation of the rotors and supplied into a combustion chamber through a rotary valve that may be actively adjusted during oper... | 12/17/2009 |
| 20090101103 | ROTARY PISTON ENGINE AND METHOD FOR DESIGNING THE SAME A rotary piston engine includes a generally triangular rotor, a pair of side housings, a rotor housing which is assembled with the rotor and the pair of side housings to define three working chambers, an intake port formed in at least one of the side housings, and an ex... | 04/23/2009 |
| 20080149066 | Aspiration plate for planetary rotary internal combustion engine An apparatus for an aspiration plate for a rotary internal combustion engine. The engine has three rotating members that orbit about the center of a three-armed rotor as the rotor rotates within a housing with three lobes. The tips of the rotating members engage the lob... | 06/26/2008 |
| 20050284440 | Rotary machine and thermal cycle A rotary machine having a housing with rotary components disclosed within. The rotary machine is configurable as an internal combustion rotary engine, an external combustion rotary engine, a gas compressor, a vacuum pump, a liquid pump, a drive turbine, or a drive turbi... | 12/29/2005 |
| 20050145213 | Electric power generator assembly An electric power generator assembly comprises a rotary piston engine having a housing, which defines a chamber. A rotary piston having an oval contour is rotatably guided in this chamber. A variable volume working chambers are defined between the wall of the chamber an... | 07/07/2005 |
| 20050139189 | ADAPTER, TO INTERFACE COUNTER-ROTATING TORQUE PRODUCING ENGINE MECHANISMS WITH STATIONARY SUPPORT ACCESSORIES, FOR TORQUE FREE OUTPUT AND TORQUE SENSITIVE ENVIRONMENTS The present invention is a novel hydraulic/electric, rotating interface for torque producing engines, including internal combustion engines, which enables a rigidly mounted motor to isolate the power/torque producing components from other stationary accessories, to prov... | 06/30/2005 |
| 20050098143 | Two-cycle engine for counter-rotation especially for aviation applications A counter-rotating 2 cycle piston engine with a combustion chamber and an output shaft rotatably mounted to rotate independently about the same propeller centerline of an aircraft. the Internal combustion power is transmitted to the output shaft by means of a convention... | 05/12/2005 |