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An extension member is attachable to a trailer hitch and extends away from the vehicle and is connected to a seating frame supporting a toilet seat.
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| Number | Title | Issue Date |
| 7357172 | Check valve with a spiral coil seal A seal for a check valve for a metal molding machine. The seal is provided by the combination of a peripheral groove in an outer surface of the check valve and a helically wound core in the groove. The helically wound coil is expandable into sealing engagement with ... | 04/15/2008 |
| 7341256 | Seal ring A seal ring which maintains a stable sealing performance over a long term is provided. In a first seal portion, linear contact portions which come into linear contact with the sidewall surface of an annular groove on the unsealed fluid side are continuously extended... | 03/11/2008 |
| 7070017 | Rotating apparatus for construction machine A swing mechanism for a construction machine having a grease bath seal. A grease bath can be disposed on a vehicular base carrier of the machine, and can be coupled with a swing frame. The grease bath seal can then act to prevent intrusion of pollutants or other for... | 07/04/2006 |
| 6712366 | Seal assembly for limiting the movement of a seal within a seal housing An improvement in a seal assembly of the type including a seal element retained by a seal housing, where one of the seal element and the seal housing is constructed from a compressible material, where the seal element includes a seal engagement surface and where the... | 03/30/2004 |
| 6457721 | Piston ring locator A piston and split piston ring assembly having a piston ring locator to prevent substantial rotation of the piston ring in a ring groove. A notch is provided in a wall of the ring groove and an abutment pocket is formed by the ends of the split piston rin... | 10/01/2002 |
| 5996545 | Internal combustion engine with a horizontal cylinder In order to prevent penetration of lubricant into the combustion chamber, a piston for an internal combustion engine has a labyrinthine pressure equalizing passage between the combustion chamber and the crankcase. For this purpose, the piston ring closest... | 12/07/1999 |
| 5664536 | Self-locating piston ring for a two-stroke engine A self-locating piston ring for a piston of a two-stroke engine. The piston is slidable in the cylinder bore of a two-stroke engine and is provided with a circumferential groove. A recess extends radially inward from a portion of the groove. A split pisto... | 09/09/1997 |
| 5203294 | Horizontal cylinder arrangement for an internal combustion engine A four-cycle internal combustion engine which has one or more horizontally disposed cylinder bores and a piston supported for horizontal reciprocation in each cylinder bore. Each piston includes a ring structure wherein a plurality of compression rings ar... | 04/20/1993 |
| 4966068 | Split ceramic piston ring arrangement with nested biasing ring A piston-ring arrangement for use in an internal combustion engine including a cylinder with a piston axially displaceable within the cylinder and at least one piston ring guided in the cylinder. The cylinder, piston and piston-ring are made of a ceramic ... | 10/30/1990 |
| 4962691 | Mounting structure of a multiple piston ring This invention relates to a mounting structure of a multiple piston ring for various internal combustion engines. A plurality of piston rings are all wrapped in a cylindrical groove formed upon an outer surface of a piston so that a gap of one piston ring... | 10/16/1990 |
| 4883029 | Piston and piston ring construction A piston assembly comprising a piston reciprocally movable along an axis and including a generally cylindrical outer surface having therein a circumferentially extending groove partially defined by a surface having therein a recess, and a piston ring loca... | 11/28/1989 |
| 4367702 | Internal combustion engine with automatic compression release An internal combustion engine is illustrated having an engine block, a cylinder located in the engine block, and a cylinder head defining an end wall of the cylinder. A piston is housed in the cylinder and defines with the cylinder and the cylinder head a... | 01/11/1983 |
| 4358121 | Ring gap seal A ring gap seal for use on the top compression ring of a piston in an internal combustion engine, an air compressor, a fluid pump, a refrigeration pump, or a rotating shaft seal. In one embodiment, the ring gap seal comprises a lip portion adapted to be s... | 11/09/1982 |
| 4256067 | Oblong piston rings for internal combustion engine An internal combustion engine has an oblong piston mounted to reciprocate within an oblong cylinder. The piston is elongated in a direction parallel to the axis of the crankshaft and is provided with piston rings which have sliding contact with the surfac... | 03/17/1981 |
| 4213427 | Rotary engine A four-cycle rotary engine having a generally tubular cylindrical housing with end covers rotatably supporting an output shaft extending axially of the housing, an annular cylinder block assembly, secured to and surrounding the output shaft, has a plurali... | 07/22/1980 |
