Bizarre Patents
Pillow with retractable umbrella
A pillow assembly having a supporting assembly and a retractable umbrella assembly that is easily transportable and allows a user to support his/her head while covering their face from sunlight.
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| Number | Title | Issue Date |
| 7240767 | Fixing structure of tail pipe of exhaust pipe A clamping member (2) for clamping a periphery of a rear-end open portion of an exhaust pipe (3) is accommodated in a front-end open portion (11) of a tail pipe (1). The clamping member (2) has a pair of plate parts (21, 22)... | 07/10/2007 |
| 7156202 | Method and apparatus for venting exhaust gas from an engine A muffler for coupling to an exhaust port of an internal combustion engine. The muffler includes a housing having an exhaust inlet configured to receive exhaust gas from the engine, at least one internal expansion chamber and an outlet opening. The muffler further i... | 01/02/2007 |
| 6050284 | RV generator auxiliary exhaust system method An auxiliary exhaust system is provided for releasable attachment to internal combustion engines as are used on electrical generators of recreational vehicles or the like. The auxiliary exhaust system is easy to assemble and disassemble and directs combus... | 04/18/2000 |
| 5839473 | RV generator auxiliary exhaust system and method An auxiliary exhaust system is provided for releasable attachment to internal combustion engines as are used on electrical generators of recreational vehicles or the like. The auxiliary exhaust system is easy to assemble and disassemble and directs combus... | 11/24/1998 |
| 5590524 | Damped heat shield A damped heat shield for a high temperature portion of a vehicle exhaust system. The heat shield has inner and outer metal layers of substantially different thicknesses and substantially different resonant frequencies, which causes the shield to damp vibr... | 01/07/1997 |
| 5058703 | Automotive exhaust noise attenuator To reduce noise, an automotive exhaust tailpipe has a convoluted surface at or near its outlet to generate pairs of counterrotating axial vortices within the exhaust gases just before or just as the gases exit the tailpipe. The convoluted surface may be t... | 10/22/1991 |
| 4792014 | Tail pipe for drafting engine exhaust gas A tail pipe for drafting an engine exhaust gas includes: a front perforated pipe connected to an engine exhaust silencer or muffler, an outer pipe jacketed outside the front pipe for leading environmental air therein, a central pipe connected on a rear en... | 12/20/1988 |
| 4778029 | Engine air inlet and silencer for motor vehicle A noise attenuating tube mounted in an engine compartment air intake hood duct of a motor vehicle to attenuate engine air intake noise in the hood is disclosed.... | 10/18/1988 |
| 4766983 | Muffler for V-type engine A muffler for work vehicle V-type internal combustion engines is disclosed, which is mounted in a horizontal sideway position, with its axis placed perpendicularly with the longitudinal vehicle axis, kept a proper distance from the chassis or vehicle body... | 08/30/1988 |
| 4679395 | Cleaning means for vehicle exhausting pipe A device which comprises an intake for extraneous air to which can be admixed the waste gas emanating from exhausting pipe in an accelerating cylinder to provide additional energy to drive a vehicle, to provide a noise-muffler function, and to dilute the ... | 07/14/1987 |
| 4616732 | Silencing system for exhaust gases from internal combustion engines A silencing system for exhaust gases from internal combustion engines, comprising an intermediate silencing device for connection to the exhaust manifold of an internal combustion engine, and a final silencing device series connected to the intermediate s... | 10/14/1986 |
| 4487289 | Exhaust muffler with protective shield An exhaust muffler having a protective shield to reduce noise radiation and to decrease the temperature of the exhaust gases being discharged from the muffler. The muffler is composed of an outer body enclosed at its ends by flanges, and an outer insulate... | 12/11/1984 |
| 4390079 | Muffler and exhaust extractor A muffler and exhaust extractor especially adapted for internal combustion engine powered vehicles such as over the road diesel tractors. The muffler and exhaust extractor generally stated comprises a pair of spaced curved airfoils for directing the airst... | 06/28/1983 |
| 4335575 | Exhaust back pressure reducer for internal combustion engine An exhaust gas pressure reducer for an internal combustion engine which is comprised of a housing having means for attaching the housing to the end of the exhaust pipe. The housing has one or more venturi restrictions and is open at the ends for creating ... | 06/22/1982 |
| 4331213 | Automobile exhaust control system An exhaust gas control system has a guiding pipe with a proximal inlet end for connecting to a distal end of an engine exhaust pipe. An expanding portion of the guiding pipe has a central rearward expanding cone and spiralling blades extending between the... | 05/25/1982 |
| 4323139 | Energy saving exhaust siphon A device is disclosed for attachment to the tailpipe of an exhaust system comprising a body portion placed around the tailpipe, but spaced apart from the tailpipe, in a manner that air may easily flow between the body portion and the tailpipe when the veh... | 04/06/1982 |
| 4313523 | Automotive exhaust system incorporating venturi to reduce back pressure A method and apparatus are provided for reducing back pressure within an exhaust system for an internal combustion engine by creating a venturi within the exhaust system and forcing air through the venturi to create suction for drawing exhaust gases away ... | 02/02/1982 |
| 4303143 | Exhaust gas control system An exhaust gas control system has a proximal end for connection to a distal end of an exhaust pipe and has a first divergent and convergent and second divergent portions. Curved spiralling blades extend around inner walls of the first divergent and conver... | 12/01/1981 |
| 4231221 | Exhaust silencer for exhaust systems of internal combustion engines, particularly internal combustion engine-operated manual appliances The invention relates to an exhaust silencer for internal combustion engines, particularly for manually operated appliances, in which a reduction of the contact and exhaust gas temperatures in order to prevent fire risks on contact with easily flammable o... | 11/04/1980 |
| 4100994 | Marine exhaust silencer A silencer quiets the exhaust output from a marine engine by injecting a spray of cooling water into the exhaust passageway to mix with and cool the exhaust gases before output from the passageway. The exhaust passageway preferably enlarges substantially ... | 07/18/1978 |
| 3952823 | Vehicle gas extractor This invention relates in the main to the extraction of gases from moving vehicles, by means of a chamber having long narrow discharge aperture, and being mounted in the air-flow past the vehicle. Features of the invention include the provision of aerofoi... | 04/27/1976 |
