Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7325651 | Motorcycle exhaust system To provide a motorcycle exhaust system, which is less susceptible to the elevated temperature of the exhaust gases and vibrations induced by the motorcycle combustion engine (E) and in which the sectional area of the exhaust passage can be properly adjusted independ... | 02/05/2008 |
| 7325474 | Silencer The present invention relates to a silencer easily cleanable inside. This silencer comprises a casing cylinder and a segment member housed in the casing cylinder to constitute a sound reducing means. The silencer further comprises a segment member fastening means fo... | 02/05/2008 |
| 7244108 | Hermetic compressor with an improved cylinder head-suction muffler assembly This invention relates to a hermetic compressor used on a refrigerant cycle such as a refrigerator, and discloses a low noise compressor designed to attenuate a resonance sound in a compression chamber and intake pressure pulsing more operatively at a position adjac... | 07/17/2007 |
| 7240768 | Flapper finger valve A flapper finger valve assembly for use in an exhaust system. The flapper finger valve includes a tube having a plurality of orifices therethrough. The flapper finger valve assembly also includes a plurality of flapper finger valves generally having a C-shape wherei... | 07/10/2007 |
| 6932189 | Device for noise structuring in a motor vehicle A device for noise structuring in a motor vehicle has a plurality of gas-carrying lines connected to an internal combustion engine. At least two of the gas-carrying lines are acoustically linked together by at least one connection. ... | 08/23/2005 |
| 6899199 | Flapper finger valve assembly A flapper finger valve assembly for use in an exhaust system. The flapper finger valve includes a tube having a plurality of orifices therethrough. The flapper finger valve assembly also includes a plurality of flapper finger valves generally having a C-shape wherei... | 05/31/2005 |
| 6382348 | Twin muffler A twin muffler includes two muffling units connected in parallel to the exhaust post of an engine through a manifold, each muffling unit having a front accumulation chamber, a rear accumulation chamber, a perforated inner tube connected between the front ... | 05/07/2002 |
| 5959263 | Bypass muffler This invention relates to an exhaust gas muffler assembly for internal combustion engines which is operable in both a muffled or unmuffled mode. In exterior appearance, the bypass muffler of this invention looks like a conventional muffler having a shell ... | 09/28/1999 |
| 5804777 | Suction noise muffler for hermetic compressor A suction noise muffler for a hermetic compressor which is capable of enabling a smooth flow of a refrigerant gas and reducing a suction noise by forming a predetermined shaped refrigerant gas flow guide path and a plurality of noise reducing sections, wh... | 09/08/1998 |
| 5743088 | Triad exhaust system A triad exhaust system comprising a diverter rotatably engaged with a muffler and an exhaust pipe. The diverter has a plurality of ports which are alignable with a muffler intake and an exhaust pipe intake. When the diverter is rotated to a "BOTH" positio... | 04/28/1998 |
| 5452578 | Exhaust cutout device An improved exhaust cutout device is provided for an engine having a collector pipe from a header and an exhaust pipe to a muffler. The device consists of a mechanism for diverting exhaust gases. Elements are for fluidly coupling the diverting mechanism b... | 09/26/1995 |
| 5097664 | Method for controlling exhaust system of vehicle There is provided a method for controlling an exhaust system of a vehicle including a controller for controlling an open-close operation of an on-off valve which is provided at an intermediate portion of one of a pair of exhaust pipes arranged in parallel... | 03/24/1992 |
| 4926635 | Exhaust system for multi-cylinder engine An exhaust system for a V-type six-cylinder engine having first and second banks each having three engine cylinders. The exhaust system includes first and second exhaust systems which are respectively connected to the first and second banks to be supplied... | 05/22/1990 |
| 4926636 | Engine-control apparatus Disclosed is an engine-control apparatus in which an exhaust passageway of the engine is provided with plural sound deadening passages. A portion of the plural sound deadening passages is designed to be opened or closed by a shift valve on the basis of a ... | 05/22/1990 |
| 4920747 | Header dump assembly The heater dump assembly comprises an inlet port; an exhaust port; and a bypass port disposed between the inlet port and the exhaust port. The bypass port may be selectively sealed with a closure assembly to route the exhaust gasses from the exhaust manif... | 05/01/1990 |
| 4913260 | Gas silencing system with controlling sound attenuation A gas silencing system for controlled sound attenuation of the exhaust gas in a motor vehicle comprises a sound attenuation muffler for exhaust gases. The system also includes means providing a bypass passage for gas to flow around at least part of the mu... | 04/03/1990 |
| 4903486 | Performance responsive muffler for internal combustion engines A muffler responsive to exhaust flow rate is provided for an internal combustion engine. The muffler includes a body having a variable restrictor located downstream from an inlet port and upstream from an outlet port of the muffler. The variable restricto... | 02/27/1990 |
| 4901528 | System for suppressing noise due to exhaust gas from motor vehicle In an automotive vehicle installed with a V-6 engine, engine revolution speed and engine load are detected and a selector valve provided in a silencer is normally closed but it is opened when the engine revolution speed exceeds a predetermined engine revo... | 02/20/1990 |
| 4866933 | Exhaust silencer An exhaust silencer for a car includes a housing, a partitioning diaphragm plate, a conduction pipe for conducting therethrough an exhaust gas from the car engine, an exhaust pipe exhausting thereout the exhaust gas to the atmosphere, an exhaust conduit c... | 09/19/1989 |
| 4840030 | Tail pipe structure of control type muffler A tail pipe structure of a control type muffler having a first outlet pipe and a second outlet pipe provided with a control valve inserted therein, wherein the first outlet pipe is in communication with the downstream side of the control valve of the seco... | 06/20/1989 |
| 4779705 | Header exhaust adapter The apparatus would include a body portion positionable intermediate the exhaust manifold and the muffler or the catalytic converters if the car is adapted with such, so that exhaust gases, under a first condition, can flow through the body portion and in... | 10/25/1988 |
