Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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 |
| 7421995 | Rotary valve system and engine using the same Rotary valve system for controlling communication with a port in an internal combustion engine which, in one disclosed embodiment, has a crankshaft, compression and expansion pistons connected to the crankshaft for reciprocating movement within compression and expan... | 09/09/2008 |
| 7371265 | Continuous hydrogen and alcohol generator from coal A gas generator with the sole input of air, water and coal that continuously produces hydrogen and carbon monoxide and further reacts these two gases into alcohol. This gas generator/reactor is using its own by-products and is therefore also self sustaining. ... | 05/13/2008 |
| 7334558 | Slide body internal combustion engine An internal combustion engine includes a slide body having a plurality of rigidly mounted pistons on opposite ends of the slide body. The slide body reciprocates and is connected to a flywheel by shaft and bearing which extends through an angled track in the slide b... | 02/26/2008 |
| 7331315 | Two-stroke engine with fuel injection A two-stroke internal combustion engine is provided with a fuel injector. The two-stroke internal combustion engine may have at least one transfer passage, an air channel, and a fuel injector. The transfer passage is between a crankcase and a combustion chamber of t... | 02/19/2008 |
| 7328674 | Rotary valve system and engine using the same Rotary valve system for controlling communication with a port in an internal combustion engine which, in one disclosed embodiment, has a crankshaft, compression and expansion pistons connected to the crankshaft for reciprocating movement within compression and expan... | 02/12/2008 |
| 7325520 | Rotary valve system and engine using the same Rotary valve system for controlling communication with a port in an internal combustion engine which, in one disclosed embodiment, has a crankshaft, compression and expansion pistons connected to the crankshaft for reciprocating movement within compression and expan... | 02/05/2008 |
| 7255082 | Rotary valve system and engine using the same Rotary valve system for controlling communication with a port in an internal combustion engine which, in one disclosed embodiment, has a crankshaft, compression and expansion pistons connected to the crankshaft for reciprocating movement within compression and expan... | 08/14/2007 |
| 7213546 | Engine airflow management system A rotary valve assembly for an internal combustion engine is herein disclosed. The rotary valve assembly comprises a valve body having a number of ports formed therethrough and a bore that intersects these ports such that a valve cylinder inserted into the bore may ... | 05/08/2007 |
| 7213547 | Valve A valve is constructed to strike a balance between providing relatively high sealing yet low friction as components of the valve move. The valve includes a port and an actuator movable relative to the port. A member is disposed between the port and the actuator. The... | 05/08/2007 |
| 7140342 | Slotted cylindrical tube rotary valve assembly This invention is a slotted cylindrical rotary valve assembly for an internal combustion engine, comprising of two sets of gear driven slotted cylindrical tubes in a cradle apparatus. Each set has two tubes located co-axially and rotates co-axially, and each tube is... | 11/28/2006 |
| 7111603 | Heli-shaft The HELI-SHAFT intake exhaust manifold system is comprised of a shaft with two helical and parallel runners cutout around its length. Surrounding the shaft is a sleeve of the same length to enclose and separate the two runners. The intake runner has an opening at th... | 09/26/2006 |
| 7063065 | Four cycle, piston-driven, rotary ported intake and exhaust super atmospherically charged on demand internal combustion engine Disclosed in the field of the four-cycle reciprocating piston internal combustion engine is an invention for a rotary ported intake and exhaust system and super-atmospherically charged on demand engine. This invention replaces the inefficient reciprocating valve sys... | 06/20/2006 |
| 6994316 | Rotor valve and seal A rotor valve (10) having a rotor seal (34) containing a centrally disposed opening (52) for directing an external pressure (Pe) to a rear surface (35) of the seal for applying a sealing force against a sealing surface (36 | 02/07/2006 |
| 6976464 | Semi-rotating valve assembly for use with an internal combustion engine The present invention is directed to a semi-rotating valve assembly that may be used in conjunction with an internal combustion engine. The semi-rotating valve of the present invention comprises a valve shaft disposed substantially within a valve housing, wherein th... | 12/20/2005 |
| 6779504 | Spherical rotary intake valve for spherical rotary valve engine assembly An improved spherical rotary intake valve for a spherical rotary valve assembly for internal combustion engine, the improved rotary intake valve having a drum body of spherical section defined by two parallel planes of a sphere disposed symmetrically about the cente... | 08/24/2004 |
| 6755171 | Twin rotary valves for a four stroke internal combustion engine A rotary valve that includes three sealing blades and four sealing rings. Two on each end. The valve assembly rotates at one half of crank speed, for a (single cylinder four-cycle engine.) This aligns timing of the port in the valve with the port of the cylinder hea... | 06/29/2004 |
| 6691664 | Direct port rotary valve mechanism with variable timing for internal combustion engines Disclosed is a variably timed rotary valve mechanism for controlling the air/fuel intake into and exhaust gases out of an internal combustion engine. There are two rotary valve shafts, one intake and one exhaust, that contain two intake and two exhaust va... | 02/17/2004 |
| 6651605 | Rotary valve for piston engine A rotary valve assembly for an internal combustion engine includes a rotatable tubular valve body having a pair of diametrically opposed fluid flow holes that are intermittently aligned with the intake and inlet port of the cylinder as the body rotates. T... | 11/25/2003 |
| 6595177 | Rotary sleeve port for an internal combustion engine A porting apparatus in an internal combustion engine delivers and exhausts gas in a combustion space. A pair of cylinders each have a cylinder wall mounted for rotation within a head of an engine block. The cylinders each provide a pair of apertures in di... | 07/22/2003 |
| 6578538 | Rotary valve for piston engine A rotary valve assembly for an internal combustion engine includes a rotatable tubular valve body having a pair of diametrically opposed fluid flow holes that are intermittently aligned with the intake and inlet port of the cylinder as the body rotates. T... | 06/17/2003 |
| 6443116 | Valve device for an internal combustion engine The invention refers to a valve device for a combustion engine which includes a combustion chamber (1) and at least one channel (5) for communication between the combustion chamber (1) and an external space. The valve device includes a rotatable valve bod... | 09/03/2002 |
| 6443110 | Rotary valve head system for multi-cylinder internal combustion engines A rotary valve head system for a multi-cylinder engine includes hollow intake and exhaust rotary valve tubes having multiple apertures registerable with an engine intake or exhaust manifold according to a timing mechanism linked to the rotary valve tube. ... | 09/03/2002 |
| 6390048 | Valve apparatus for internal combustion engine A gas valve apparatus for an internal combustion engine having a combustion chamber. The gas valve apparatus includes a rotary intake valve located between an outer intake port and inner intake port at the combustion chamber and a rotary exhaust valve loc... | 05/21/2002 |
| 6378481 | Four-stroke internal combustion engine with a rotary-spool valve In a four-stroke internal combustion engine with a rotary-spool valve as the inlet valve, the cylinder head has a valve shaft supported transversely with respect to the cylinder axis, which valve shaft has a passage extending inclined with respect to the ... | 04/30/2002 |
| 6308676 | Cooling system for rotary valve engine An improved cooling system for an internal combustion engine employing spherical rotary intake and exhaust valves which are fixedly mounted on a rotating shaft means, the improvement comprising the forming of the shaft means with a longitudinal throughbor... | 10/30/2001 |
| 5906180 | Rotary valve assembly for an internal combustion engine An engine apparatus for an internal combustion engine which includes a first rotary valve having an indentation adapted to open an intake passage to allow air to be introduced into a combustion chamber, and a second rotary valve having an indentation to a... | 05/25/1999 |
| 5724926 | Rotary valve assembly for an internal combustion engine A mode changer for an internal combustion engine comprises a body member disposed within a housing. The body member may be adapted to communicate with an outer surface of a rotary valve. A resilient member may be disposed in the housing capable of biasing... | 03/10/1998 |
| 5711265 | Rotary valve drive mechanism An improved drive mechanism for rotary valves of the type used in internal combustion engines indexes the valves in selected attitudes of rotation to align the valve passage with an inlet or exhaust port and hold the valve in alignment for a selectable du... | 01/27/1998 |
| 5690069 | Internal combustion engine having rotary distribution valves A multi-cylinder internal combustion engine comprising a cylinder assembly with intake ports and exhaust ports arranged in register, wherein the distribution system for opening and closing said intake and exhaust ports include two rotary pipes each consis... | 11/25/1997 |
| 5655494 | Variable roller valve system for internal combustion engine A dynamic seal for containing gas flow between a roller valve and a cylinder in an internal combustion engine. Vents from the cylinder cavity allow pressure therefrom, particularly on the compression and power strokes, to exert a force against the back of... | 08/12/1997 |
| 5642699 | Rotary valve system A rotary valve system for a four stroke engine is provided. The rotary valve system includes: an engine having a plurality of cylinders, a crankshaft, a fuel injector and an exhaust manifold; an intake valve assembly rotatably mounted within the engine in... | 07/01/1997 |
| 5623901 | Time twister cylinder head for use in internal combustion engines A time twister cylinder head includes two rotary valves driven by a timing belt coupled to the engine crankshaft by belts and pulleys to describe a desired rate of rotation of the valves with respect to rotation of the crankshaft. Each valve is generally ... | 04/29/1997 |
| 5579732 | Electromechanical valve system The electromechanical valve system consists of a new system for opening and closing intake and exhaust valves on internal combustion motor vehicle engines by using electric pulses from the electronic control module (ECM) to electromagnets surrounding ball... | 12/03/1996 |
| 5579730 | Rotary valve head assembly and related drive system for internal combustion engines A rotary valve head assembly including a split head assembly, a rotary spool assembly, spool drive assemblies, and bearing and spool lubrication components. The split head assembly has bores for containing the spool assembly, bearings and spool seals, and... | 12/03/1996 |
| 5572967 | Variable roller valve system for internal combustion engine A variable roller valve system for use in an internal combustion engine. A Sliding Iris™ feature provides separate, independent, and continuous control over the aperture sizes of the intake and exhaust valve ports while the engine is running. The valve ... | 11/12/1996 |
| 5503124 | Rotary valve with seal supporting tongue A rotary valve (10) for an internal combustion engine, of the hollow cylindrical type, having one or more openings (14) arranged to pass periodically over a window in the cylinder head bore, characterized in that the valve (10) also incorporates at least ... | 04/02/1996 |
| 5431130 | Internal combustion engine with stroke specialized cylinders A multi-cylinder reciprocating piston internal combustion engine is divided into a working section and a compressor section, with the working section supporting the combustion function and the compressor dedicated solely to infusion of intake charge into ... | 07/11/1995 |
| 5417188 | Double effect distribution sequential valve shaft assembly A double-effect distribution sequential valve shaft assembly for use within a cylinder head cover of internal combustion engines or other valve-type distribution systems, includes a rotating valve shaft with openings from side to side in the vertical plan... | 05/23/1995 |
| 5410996 | Rotary valve assembly used with reciprocating engines An improved rotary valve assembly that is rotated by chain, belt or gears that are driven by a reciprocating engine which has intake and exhaust rotary valves that have ports and interior channels that are sequentially positioned to allow the intake and e... | 05/02/1995 |
| 5372104 | Rotary valve arrangement A rotary valve arrangement for engines and the like has sealing members and rings inset into the valve rotor which rotates within a loosely fitted rotor sleeve so that only the sealing elements are in contact. The rotor sleeve is mounted between a cylinde... | 12/13/1994 |
