Bizarre Patents
A coffin, for allowing inclination for display of a deceased person in a natural position.
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 |
| 7934965 | Exhaust system for small watercraft An exhaust system for a small watercraft for effectively reducing exhaust noise and allowing a high output of an engine to be easily obtained at the time of high speed operation. An exhaust outlet of an exhaust pipe extending from an engine provided in a watercraft ... | 05/03/2011 |
| 7892057 | Outboard motor with idle relief valve An idle exhaust relief passage is provided with a valve that can inhibit flow through the passage in response to certain operating conditions of an engine of an outboard motor. More particularly, operation above a predetermined threshold can be used to inhibit flow ... | 02/22/2011 |
| 7513811 | Idle exhaust structure for outboard motor An outboard motor can include a case that extends longitudinally and can be supported on a hull of a boat. An engine can be supported on the upper surface side of the case and a cowling can be supported on the upper end portion of the case for covering the engine fr... | 04/07/2009 |
| 7195528 | Outboard motor exhaust system In an outboard motor exhaust system having a first exhaust gas passage discharging engine exhaust gas into water and a shift actuator operating a shift mechanism to establish one from among a forward position, a reverse position and a neutral position, there are pro... | 03/27/2007 |
| 6966284 | Outboard motor There is provided an outboard motor (1), comprising: an intake valve (17) and an exhaust valve (18) provided to a cylinder head (14); a camshaft (20) arranged substantially vertically in the cylinder head to open and close the inta... | 11/22/2005 |
| 6783413 | Exhaust system for outboard motor An exhaust system for an outboard motor includes an internal combustion engine. An intermediate member supports the engine. A housing unit depends from the intermediate member. An exhaust system guides exhaust gases from the engine. The exhaust system includes a mai... | 08/31/2004 |
| 5954022 | Oil pan mounting arrangement for four cycle outboard motor A four cycle outboard motors that have water cooled engines and an oil pan that is formed in the upper portion of the drive shaft housing. An exhaust pipe collects exhaust gases from an exhaust guide and delivers to a cavity that is formed in the oil pan ... | 09/21/1999 |
| 5470263 | Method and apparatus for improving reverse thrust of a marine drive A marine drive has a reverse thrust cup on the propeller shaft between the propeller hub and the rear retaining nut. The reverse thrust cup permits the propeller hub to slide on the propeller shaft fore and aft. When the marine drive is in the forward dir... | 11/28/1995 |
| 5298794 | Electrical anticorrosion device for marine propulsion device This invention primarily relates to an electrical anticorrosion device for a marine propulsion arrangement. More particularly, the invention relates to a cathodic protection arrangement which is suitable for use with an inboard/outboard propulsion unit. A... | 03/29/1994 |
| 4995233 | Automatically controlled exhaust assembly for marine stern drive A stern drive marine propulsion system (2) has an inboard engine (4) with an exhaust (6), an outboard drive unit (8) and propeller (14) operatively coupled to the engine and separated therefrom by a transom (10) having two exhaust passages (28 and 34) the... | 02/26/1991 |
| 4965997 | Exhaust system for outboard motor Embodiments of outboard motors incorporating improved exhaust gas systems for preventing the ingestion of water into the cylinders of an alternate firing multiple chamber internal combustion engine. The exhaust passages are provided with a restricted comm... | 10/30/1990 |
| 4960398 | Stern drive marine propulsion system with automatic trim control and exhaust control A stern drive marine propulsion system, including an exhaust discharge control mechanism for selectively routing exhaust to an above-water outlet and to a below-water outlet, and an automatic trim control mechanism, is provided with circuitry interconnect... | 10/02/1990 |
| 4773215 | Exhaust control assembly for marine stern drive A stern drive marine propulsion system (2) has an inboard engine (4) with an exhaust (6), an outboard drive unit (8) operatively coupled to the engine (4) and separated therefrom by a transom (10) having two exhaust passages (28 and 34) therethrough, and ... | 09/27/1988 |
| 4036162 | Marine propulsion device having increased reverse thrust Disclosed herein is a marine propulsion device which comprises an engine having an exhaust port for discharging exhaust gas, and which also comprises a lower unit having an exhaust tube in communication with the exhaust port. The lower unit includes a cav... | 07/19/1977 |
| 3967446 | Exhaust relief silencing apparatus for marine propulsion systems A tuned exhaust gas relief system for marine propulsion systems, for example an outboard motor, includes a lower drive shaft housing coupled to a two stroke engine by a pair of intermediate stacked exhaust extension plates. The housing directs the exhaust... | 07/06/1976 |
| 3943876 | Water jet boat drive A water-jet is mounted rigidly entirely outboard of the boat and driven from an inboard engine by an interconnecting chaft through the transom. The tail nozzle is mounted concentric of and spaced from the pump chamber of the jet and extends rearwardly the... | 03/16/1976 |
