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.
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| Number | Title | Issue Date |
| 8038493 | Exhaust system with a catalyst for a marine propulsion device A catalyzed exhaust system for an outboard motor engine rotates its catalyst device in a catalyst housing above an adapter plate which supports the engine and separates it from the driveshaft housing. The exhaust gas is directed initially in an upwardly direction an... | 10/18/2011 |
| 7625257 | Exhaust gas recirculation cooling system for an engine of an outboard motor An outboard motor is provided with an exhaust gas recirculation (EGR) system that provides a heat exchanger which reduces the temperature of the exhaust gas prior to introducing the exhaust gas to the cylinders of the engine. The heat exchanger can be integral to th... | 12/01/2009 |
| 7390232 | Exhaust system for a marine engine An exhaust system for a marine propulsion system includes first through fifth exhaust conduit members, including a pair of serially connected marine exhaust elbows laterally spanning the engine. ... | 06/24/2008 |
| 7367857 | Exhaust structure for small watercraft To provide an exhaust structure for a small watercraft that can cool exhaust gas, reduce the size and weight, and thereby cost of a backflow prevention chamber. An exhaust structure for a small watercraft is configured to be able to cool exhaust gas in the course of... | 05/06/2008 |
| 7361282 | Separator of floating components A buoyant component separator is disclosed for removing at least some floating contaminants from fluids. The component separator may be used with a marine engine exhaust system to reduce particulate matter and unburned fuel contained in liquid coolant before it is j... | 04/22/2008 |
| 7343892 | Air-cooled diesel outboard motor An air-cooled diesel outboard motor comprising an air-cooled diesel engine. The diesel engine includes a vertical crankshaft, an exhausting port and a drive-leg. The drive leg includes a gear-box, a propeller and a water pump in a lower unit, a water cooling exhalat... | 03/18/2008 |
| 7314044 | Marine emissions control A marine engine has an exhaust system including a catalyst cooled by a flow of coolant, a coolant injector that injects coolant into the flow of exhaust at a point downstream of the catalyst, and a sensor arranged to sense a characteristic of the flow of exhaust, su... | 01/01/2008 |
| 7288010 | Personal watercraft A personal watercraft including a body including a hull and a deck covering the hull from above, an engine accommodated in an interior of the body, and an exhaust system that is accommodated in the interior of the body. The exhaust system includes an upstream muffle... | 10/30/2007 |
| 7160161 | Reduced pressure mixing device for marine vessel exhaust gas A reduced pressure mixing device is for marine vessel exhaust gas with water, with the gas/water mixture that is produced in the device being passed out into the water in which the ship is floating. The device is designed such that gas and water flow through and to ... | 01/09/2007 |
| 7156710 | Exhaust system for small-sized boat An exhaust system for a small-sized boat which can efficiently reduce exhaust noises in a low frequency band includes a water muffler provided at one location along exhaust pipes extending from an engine disposed in a boat body. The inside of the water muffler is di... | 01/02/2007 |
| 7095241 | Anisotropic conductive connector, probe member, wafer inspecting device, and wafer inspecting method Disclosed herein are an anisotropically conductive connector, by which good conductivity is retained over a long period of time even when it is used repeatedly over many times or repeatedly used under a high-temperature environment, and applications thereof. The ani... | 08/22/2006 |
| 7065961 | Exhaust system with an integral moisture trap A moisture trap is formed as an integral part of the wall of an exhaust conduit. Tapered surfaces can be provided to direct condensate downwardly and into a reservoir of the moisture trap where the moisture is retained until the temperature of the exhaust system rea... | 06/27/2006 |
| 7001231 | Dual water injector for primary and idle relief exhaust passages A water cooling system for an outboard motor provides a water conduit that extends through both an idle exhaust relief passage and a primary exhaust passage. Water within the water conduit flows through first and second openings to distribute sprays or streams of wa... | 02/21/2006 |
| 6976892 | Water-cooled vertical engine, outboard motor equipped with water-cooled vertical engine, and outboard motor A water-cooled vertical engine is provided with an exhaust guide cooling water jacket and an exhaust manifold cooling water jacket formed in an engine compartment exhaust passage, a cylinder block cooling water jacket formed in a cylinder block, and a cylinder head ... | 12/20/2005 |
| 6929520 | Cooling method for a marine propulsion system A method for cooling a marine propulsion system directs a portion of a recirculating stream of cooling water to a first port of an exhaust manifold so that a cooling jacket of the exhaust manifold can be maintained in a filled condition. Water flows upwardly through... | 08/16/2005 |
| 6821171 | Cooling system for a four cycle outboard engine A cooling system for a marine engine conducts water from a coolant pump through the cylinder head and exhaust conduit prior to conducting the cooling water through the cylinder block. This raises the temperature of the water prior to its entering the cooling passage... | 11/23/2004 |
| 6820419 | Marine wet exhaust system A marine wet exhaust system (10) which injects water into the exhaust flow for cooling and attenuating noise includes a particulate capture and containment system (14) for removing particulates and fluid contaminants from the exhaust gas and the waste ... | 11/23/2004 |
| 6808433 | Exhaust system located on one side of the hull of a personal watercraft An exhaust system for a personal watercraft that places components of the exhaust vehicle on one side of the watercraft, so that the exhaust system takes less space in the watercraft. ... | 10/26/2004 |
| 6802750 | Exhaust system for watercraft The invention relates to an exhaust system for watercraft, having an exhaust pipe which leads from an engine system to an exhaust gas outlet, wherein a through-flow means for degrading the energy of seawater gushing through the exhaust gas outlet into said exhaust p... | 10/12/2004 |
| 6769944 | Exhaust and drain structure for vessels To effectively cool a water muffler. Exhaust gas from an engine is discharged through an exhaust pipe having a water jacket into a water muffler together with water passed through the water jacket. A water outlet port of the exhaust pipe is directed toward an upper ... | 08/03/2004 |
| 6764361 | Personal watercraft Disclosed is a personal watercraft capable of obtaining a high horsepower in a high engine speed even when a four-cycle engine is mounted in the personal watercraft limited in length. The personal watercraft adapted to eject water from an outlet port to be propelled... | 07/20/2004 |
| 6752671 | Water jet propulsion type outboard engine A water jet propulsion type outboard motor which includes: a power source; a driving system; a housing; a curved tubular duct member; guide blades; and an impeller. The duct member is fixed to the housing on which the power source is mounted, and having a suction po... | 06/22/2004 |
| 6736687 | Method for discharging waste gas from submarines without a signature The invention relates to a method and a device for discharging signature free exhaust gas from underwater vehicles, the exhaust gas being a by-product of the production of electric energy in energy converters and being directed by means of pressure into a pipe lengt... | 05/18/2004 |
| 6659820 | Jet-propulsion watercraft Disclosed is a jet-propulsion watercraft capable of maintaining cooling capability in an exhaust passage even when one cooling water passage is clogged with substances. The jet-propulsion watercraft comprises: an engine having a cooling water passage; an ... | 12/09/2003 |
| 6634913 | Cooling arrangement for outboard motor An outboard motor includes a housing unit and an engine. The engine defines a first exhaust passage and a first lubricant passage. The first exhaust passage generally extends on a first side of the outboard motor. The first lubricant passage generally ext... | 10/21/2003 |
| 6120335 | Catalytic exhaust system for watercraft A personal watercraft includes a catalytic exhaust system in order to reduce discharge of pollutants. The exhaust system includes an exhaust passage and a catalyzer that is located within an expansion chamber of the exhaust passage. A water jacket is prov... | 09/19/2000 |
| 5671779 | Exhaust pipe structure in outboard engine system An exhaust pipe for guiding an exhaust gas from an engine into an exhaust gas expansion chamber defined within an extension case is connected to a protrusion of an oil pan which is mounted on a lower surface of a mount case that supports the engine at its... | 09/30/1997 |
| 5644914 | Exhaust pressure pulsation control apparatus for a marine propulsion system An exhaust pressure pulsation control apparatus for a marine propulsion system has a front ring and a reflector disk located downstream of the front ring. There is a space between the front ring and the reflector disk that is sufficiently large so that th... | 07/08/1997 |
| 5463990 | Outboard motor with four-stroke engine and exhaust gas discharge system therefor Disclosed herein is an outboard motor comprising a cylinder block including a lower horizontal drive shaft housing mounting surface, and a cylinder head mounting surface extending upwardly from the drive shaft housing mounting surface, a drive shaft housi... | 11/07/1995 |
| 5212949 | Exhaust gas cleaning system for a marine propulsion unit An exhaust gas cleaning system is provided for use with a watercraft engine. A plurality of horizontally positioned exhaust ports are located within an engine cylinder head. An exhaust manifold communicates with each of the exhaust ports at a first end an... | 05/25/1993 |
| 5149284 | Exhaust system for an outboard motor This invention is adapted to be embodied in an outboard motor that is comprised of a power head having an internal combustion engine surrounded by a protective cowling. The engine includes an exhaust port in communication with an exhaust pipe for discharg... | 09/22/1992 |
| 5035664 | Marine propulsion device gear arrangement A marine propulsion device comprising a housing adapted to be mounted on the transom of a boat, a first gear rotatably supported by the housing and adapted to be drivingly connected to a propeller, a pump, and a second gear which is driven by the first ge... | 07/30/1991 |
| 5006085 | Marine propulsion device with removable clutch assembly A marine propulsion device comprising a gear housing adapted to be mounted on the transom of a boat, a clutch assembly including a clutch housing, a shaft rotatably supported within the clutch housing and adapted to be drivingly connected to a propeller, ... | 04/09/1991 |
| 4993979 | Marine propulsion device A marine propulsion device comprising a gear housing adapted to be mounted on a transom of a boat, a first gear rotatably supported by the gear housing and adapted to be driven by an engine, a second gear which is rotatably supported by the gear housing, ... | 02/19/1991 |
| 4959033 | Marine propulsion device cover arrangement A stern drive unit comprising a metal upper gear housing which is adapted to be mounted on the transom of a boat for pivotal movement relative thereto about a generally vertical steering axis and about a generally horizontal pivot axis, a generally vertic... | 09/25/1990 |
| 4504238 | Fluid cooler for marine drives A fluid cooler for hydraulic or other fluids in the marine drive is provided in the exhaust pipe of a marine drive so that cooling water in the exhaust pipe may remove heat from fluid in the cooler. The cooler may comprise fins on the exterior of the port... | 03/12/1985 |
| 4350010 | Exhaust system for an outboard engine An outboard engine has a casing, an internal combustion engine with a water cooling circuit and an exhaust pipe. The exhaust pipe discharges exhaust gases into an expansion chamber, and gases from the expansion chamber are discharged into the body of wate... | 09/21/1982 |
