Quotables
"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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7793635 | Rotary piston type internal combustion engine The rotary piston type internal combustion engine (E1) comprises an output shaft (1), a rotor (2), a housing (4), an annular operation chamber (5) formed by the rotor and housing on at least one side of the rotor in the axial direc... | 09/14/2010 |
| 7434563 | Rotary engine The rotary engine includes a cylinder body having a cylinder chamber, an intake port, an exhaust port, and a spark plug, and a rotor which is received in the cylinder chamber to eccentrically rotate while coming into contact at seal faces thereof with an inner circu... | 10/14/2008 |
| 7421982 | Independent combustion chamber-type internal combustion engine The present invention is directed to an internal combustion engine for making suction, compression, explosion, expansion and exhaust strokes in an operating chamber of variable volume defined between a housing and a piston. The internal combustion engine includes: a... | 09/09/2008 |
| 7398757 | Toroidal engine method and apparatus A rotary motion device having piston valves that define an open region that are adapted to engage a power tooth of the power ring as the power ring rotates around the piston valves and the piston valves rotate about their own separate axis that is fixed with respect... | 07/15/2008 |
| 7341041 | Toroidal engine with variable displacement volume A novel rotary engine of the kind having a toroidal cylinder and a set of pistons on a rotating circular piston assembly provides instantaneous adjustment of the displacement volume of the engine by varying the intake and expansion stroke length on the circular path... | 03/11/2008 |
| 7308884 | Rotary engine A circular column-shaped flywheel rotor 4 that rotates inside a rotor housing 1 in which a cylindrical-shaped hollow section is formed; a piston head 34 that is located on the flywheel rotor 4 so that it can come in sliding contact with t... | 12/18/2007 |
| 7305963 | Blade-thru-slot combustion engine, compressor, pump and motor This is simple and efficient rotary machine that can be implemented as compressor, pump, motor and mainly as internal combustion engine. The engine comprises a housing, a rotor(s) with a radial blade(s), a chamber(s) swept by the blade(s), an intersecting planar val... | 12/11/2007 |
| 7270106 | Free-planetary gear moderated nutating (athena) engine In a nutating engine (or more generally a rotary displacement device) the cycling of combustion occurs between inner and outer spherical surfaces. The combustion chambers are additionally defined only by the surfaces of teeth of specially designed gears. These gears... | 09/18/2007 |
| 7185625 | Rotary piston power system The rotary piston power system includes a housing having a drum and a cover rotatably mounted on the drum. The drum has high pressure and low pressure ports defined in its peripheral wall and a central separator wall having arcuate end faces and a pair of semicylind... | 03/06/2007 |
| 7100566 | Operating method for a rotary engine and a rotary internal combustion engine The invention relates to propulsion engineering and particularly to internal-combustion engines. The problem solved by the present invention is improving fuel efficiency and ecological compatibility, as well as providing the ability to set advance ignition at higher... | 09/05/2006 |
| 6953020 | Control of auto-ignition timing for combustion in piston engines by prechamber compression ignition A method and system of controlling auto-ignition timing in an internal combustion engine cylinder in which the timing of auto-ignition in prechambers that are coupled to the cylinder is precisely controlled. The auto-ignition in the prechambers is produced by a comp... | 10/11/2005 |
| 6945217 | Rotary machine Rotor having a pair of parallel side surfaces and a cured perimeter surface therebetween formed of contiguous mutually tangential curves each including a major portion defining a first major arc subtending a predetermined angle at a predetermined center of rotation,... | 09/20/2005 |
| 6758188 | Continuous torque inverse displacement asymmetric rotary engine An internal combustion rotary engine generating continuous torque throughout an entire combustion cycle by an inverse displacement of a moving chamber and stationary convex surface is described. A rotary engine having one or more of asymmetric chambers, asymmetric c... | 07/06/2004 |
| 6684825 | 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, o... | 02/03/2004 |
| 6606973 | Rotary engine A rotary engine utilizes an expansion chamber and an oscillating rotary piston to capture the energy of expanding combustion gases through out substantially all of each revolution of the piston. The movement of the oscillating rotary piston is guided by t... | 08/19/2003 |
| 6543406 | Rotary piston combustion engine The invention relates to a 4-phase rotary piston combustion engine. The embodiment of the engine consists of the engine body (1) where the main cylinder (2) is located; the piston (4) which revolves in the main cylinder and a cylindrical piston body is a ... | 04/08/2003 |
| 6539913 | Rotary internal combustion engine The present invention provides an internal combustion engine and a method of manufacturing the internal combustion engine. The internal combustion engine comprises a housing, a first rotor, first and second impellers and a compression cam. In a preferred ... | 04/01/2003 |
| 6530357 | Rotary internal combustion engine The present invention pertains to rotary internal combustion engines and essentially relates to an engine including a body that comprises an inner cylindrical cavity as well as side covers. The cavity comprises a rotor-piston which is concentrically mount... | 03/11/2003 |
| 6298821 | Bolonkin rotary engine The disclosed Bolonkin rotary engine has high energy efficiency and can be used as an internal combustion engine, a compressor, a pump, or as a motor working on compressed gas or liquid. Bolonkin rotary engine comprises a housing, a rotor mounted in the h... | 10/09/2001 |
| 6276329 | Rotary machine A rotary machine, usable as an engine or as a pump, has a toroidal cylinder (25) which is swept by continuously rotating disc-like piston (34). The cylinder has a double disc valve arrangement (42, 44) at one point, so that it can be divided into a compre... | 08/21/2001 |
| 6065874 | Linear bearing Prior art linear bearings generally have a roller element which, in such a reciprocating motion application, tend to creep or slide along the surfaces upon which they roll. This is due to unequal frictional forces between the rolling surfaces. The linear ... | 05/23/2000 |
| 6062188 | Rotary piston type internal combustion engine A rotor provided in a cylindrical rotor holding bore in a housing is supported rotatably in the holding bore via a shaft member extending coaxially with the rotor holding bore, and the rotor has one projecting portion, a gently inclined curved pressurizat... | 05/16/2000 |
| 5755197 | Rotary engine A rotary internal combustion engine is disclosed having a housing with a compression chamber and an expansion chamber which can be separate chambers with separate rotors located therein or a combined chamber with a single double-lobed rotor located therei... | 05/26/1998 |
| 5579733 | Rotary engine with abutments A rotary motor with a pair of abutments that move relative to a rotor through the rotation of gears operatively connected to both the abutments and the rotor. The abutments and rotor are located within a housing such that the inner cavity of the housing i... | 12/03/1996 |
| 5251594 | Nutating internal combustion engine A nutating internal combustion engine is disclosed including a disc having cone-shaped surfaces and a centrally disposed sphere positioned within a symmetrical, spherical-segment shaped chamber which is adapted to contain the disc and has a central bearin... | 10/12/1993 |
| 5138993 | Rotary wavy motion type engine A rotary wavy motion type engine is disclosed, and the engine includes: a center housing 1 and side housing 2,2'. The center housing 1 is provided with an exhaust hole 1', and the center and side housing form a frame and an internal chamber. A disc shaped... | 08/18/1992 |
| 4967707 | Rotary engine A rotary internal combustion engine comprising an external rotor housing with a wall defining an internal cylindrical chamber, an inlet for supplying compression fluid, an ignition assembly for igniting fluid within the chamber, a transfer assembly for tr... | 11/06/1990 |
| 4895117 | Internal combustion engine An internal combustion engine includes a set of gas chambers including a compression chamber for compressing a fuel/gas mixture and a combustion and exhaust chamber for combusting the fuel/gas mixture and for exhausting the waste gases. The compression ch... | 01/23/1990 |
| 4760701 | External combustion rotary engine An external combustion rotary engine comprising a motor member, a free-piston combustion member and a storage tank serving also as a heat exchanger and located between the motor and the combustor. The motor rotors rotate inside an enveloping structure ecc... | 08/02/1988 |
| 4683852 | Internal combustion engine having rotating pistons A novel internal combustion engine has a single toroidal cylinder and a set of pistons, e.g. four, which are set in a circle and rotate in the toroid. The toroid can be interrupted by separating walls to form, with the pistons, compression or expansion ch... | 08/04/1987 |
| 4423710 | High compression rotary engine A rotary internal combustion engine comprising a cylinder bore in a stator sealed between parallel end walls; a power shaft concentric with the cylinder bore journaled in bearings in the end walls; an annular eccentric piston fixed onto the engine shaft j... | 01/03/1984 |
| 4399654 | Power plant having a free piston combustion member A power plant including a vane type engine having fuel compression means and a gas expansion means. Air or an air-fuel mixture compressed by the vanes in the compression means is fed to a free piston combustion member where burning takes place and gases a... | 08/23/1983 |
| 4342295 | Rotary internal combustion engine A rotary internal combustion engine comprising a cylinder in a stator sealed between parallel end plates, a power shaft concentric with the cylinder bore and journaled in bearings in the end walls, an annular eccentric rotor fitted onto the shaft, and an ... | 08/03/1982 |
| 4342297 | Rotary internal combustion engine A rotary internal combustion engine comprising a cylinder in a stator sealed between parallel end plates, a power shaft concentric with the cylinder bore and journaled in bearings in the end walls, an annular eccentric rotor fitted onto the shaft, and an ... | 08/03/1982 |
| 4342296 | Rotary internal combustion engine A rotary internal combustion engine comprising a cylinder in a stator sealed between parallel end plates, a power shaft concentric with the cylinder bore and journaled in bearings in the end walls, an annular eccentric rotor fitted onto the shaft, and an ... | 08/03/1982 |
| 4337741 | Rotary internal combustion engine A rotary internal combustion engine comprising a housing, a rotor-receiving chamber in the housing, a rotor which is mounted for rotation in the rotor-receiving chamber, at least five discrete combustion chambers which are separated by lobe portions of th... | 07/06/1982 |
| 4311121 | Rotary device An improved rotary device is provided which can be used either as an internal combustion engine or a compressor. The device includes a housing having an interior cylindrical chamber; a rotary piston with at least one, but preferably three protruding lobes... | 01/19/1982 |
| 4286555 | Rotary internal combustion engine A rotary internal combustion engine comprising a cylinder in a stator sealed between parallel end plates, a power shaft concentric with the cylinder bore and journaled in bearings in the end walls, an annular eccentric rotor fitted onto the shaft, and an ... | 09/01/1981 |
| 4200084 | Rotary piston engine A disc is fixedly secured to a main shaft for rotation therewith between a cover member and a housing. The disc carries four piston lugs equally disposed about its periphery and which extend radially therefrom for rotary passage through an annular action ... | 04/29/1980 |
| 4096846 | Rotary fluid pressure engine A rotary fluid pressure engine having good fuel efficiency and low pollutant emissions. An annnular chamber of uniform cross-section forms a cylinder housing. An endless rotor is centrally positioned and movable in the cylinder housing. The rotor comprise... | 06/27/1978 |
