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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 |
| RE42654 | Seal assembly A seal for acceptance in an annular gland in a piston comprises an annular primary sealing element, an annular secondary sealing element disposed radially inwardly of the primary sealing element, and a pair of axially spaced back up rings disposed in axially spaced ... | 08/30/2011 |
| 7988156 | Additive pump A seal assembly, for an additive pump having a reciprocating piston, is provided. The seal assembly includes a seal carrier having first and second components each having a bore therein to receive the piston. Each component has an end face arranged to abut one anoth... | 08/02/2011 |
| 7510195 | High temperature and high pressure compressor piston ring A piston ring for use at temperatures above 350° F. at pressures greater than or equal to about 2000 psi, comprising a gap having a gap width about 1.4 to about 2.0 times greater than a thickness of the piston ring; a height about 4.5 to about 6.4 times larger than... | 03/31/2009 |
| 7431305 | Oil scraper ring ring groove arrangement for pistons of internal combustion engines The invention relates to an oil scraper ring groove ring arrangement for pistons of internal combustion engines. The inventive arrangement comprises a disk that is provided with parallel flanks and a bearing surface having an asymmetrical crowned form with a vertex ... | 10/07/2008 |
| 7360511 | Opposed piston engine A two-cycle, opposed piston engine with side-mounted crankshafts and cylinders isolated from mechanical stresses of the engine includes tailored cooling of cylinders and symmetrical cooling of the interior surfaces of piston crowns. Each opposed piston includes a co... | 04/22/2008 |
| 7354045 | Oil ring It is a main object of the present invention to provide an oil ring which is capable of reducing sliding friction even in a high speed revolution region of a piston, and capable of reducing the consumption of oil. To achieve the object, the present invention provide... | 04/08/2008 |
| 7341258 | Cammed seal assembly with sealing ring having an angled leg portion and foot portion with elastomeric energizer element A seal assembly seals first and second operational surfaces spaced apart by a gap. The first surface includes a seal groove having a base surface and first and second side surfaces. A sealing element in the seal groove has a foot portion extending parallel to the ba... | 03/11/2008 |
| 7302961 | Surge relief valve A surge relief valve comprising a main valve body having a dome port and an inlet port. The inlet port is in fluid communication with a first fluid. The invention further includes a dome reservoir connected to the main valve body via the dome port and arranged to ho... | 12/04/2007 |
| 7234704 | Wiping and/or sealing element as well as process for sealing a piston and clamping and/or support element The present invention pertains to a wiping and/or sealing element for sealing a piston (11) guided movably in a housing (10) with a seal held in a groove (21, 30). The present invention pertains, furthermore, to a process for sealing a movable p... | 06/26/2007 |
| 7228787 | Method for joining the functional parts of hydraulic or pneumatic working devices, and joining connection Joining connections are presented for joining the functional parts of hydraulic or pneumatic operating devices the joining connections including a first part exhibiting an external wall section and a second part exhibiting an internal wall section, which are joined ... | 06/12/2007 |
| 7156056 | Two-cycle, opposed-piston internal combustion engine In a two-cycle, opposed-piston internal combustion engine with optimized cooling and no engine block, the opposed pistons are coupled to a pair of crankshafts by connecting rods that are subject to substantially tensile forces acting between the pistons and the cran... | 01/02/2007 |
| 7140291 | Oil-free/oil-less air compressor with an improved seal An oil-free/oil-less air compressor with a piston positioned for reciprocating in a bore, the piston having a first piston ring assembly made from a rigid, high temperature polymer, and a second piston ring assembly comprising a first portion that engages the bore, ... | 11/28/2006 |
| 7044472 | Combined steel oil control ring A combined steel oil control ring is provided which has steel side rails and a steel spacer expander. The spacer expander includes ear portions for contacting the side rails. The ear portions are substantially equally spaced with respect to each other along the inte... | 05/16/2006 |
| 7036823 | Side rail and combined oil control ring incorporated with the side rails for reduction of oil consumption A side rail is formed into a ring shape having its generally rectangular section that has an outer surface 3 formed with a pair of edge surfaces 5 of small radius, and an intermediate surface 6 of large radius of curvature formed between the edg... | 05/02/2006 |
| 6959930 | Combination oil scrapper ring/gas seal assembly A ring assembly, including a first oil scraper ring, a center oil scraper ring and a gas seal ring, adapted for disposition in a single groove of a packing cup which can be stationarily mounted over and around a reciprocally movable piston rod of a gas compressor. T... | 11/01/2005 |
| 6860485 | Piston ring The present invention provides a piston ring comprising a piston ring main body and an expander ring arranged on an inner peripheral surface thereof, the expander ring comprising two oil expander rings, one of which is housed in a space in a spiral of the other. The... | 03/01/2005 |
| 6811156 | Seal for hydraulically sealing a piston rod A seal for hydraulically sealing a piston rod that travels axially into and out of a housing, preferably in a hydraulic dashpot. The seal comprises a preferably resilient-plastic sealing component (5). The sealing component is provided with one or more sharp ... | 11/02/2004 |
| 6719298 | Bonded piston seal for power steering A seal assembly which acts as a piston in a vehicle power steering unit. The seal includes a casing and an elastomeric seal body and is affixed to a movable rack at two attachment points. One point is the tail portion of an axial flange swaged into a groove in the r... | 04/13/2004 |
| 6705616 | Piston ring device in internal combustion engine In order to increase in concentration of HC in an exhaust gas due to an axial gap between a ring groove and a piston ring, when an internal combustion engine is at a lower temperature, particularly, during the starting or the low-speed operation of the internal comb... | 03/16/2004 |
| 6651987 | Seal for preventing leakage of fluid from opening formed in side wall of work tank of wire cut electric discharge machine A seal for preventing leakage of fluid from an opening (42) formed in a side wall (41) of a work tank (40) of a wire electric discharge machine comprises a slide plate (1) movable with respect to the work tank for closing the opening, and a rail member (2... | 11/25/2003 |
| 6439203 | Seal arrangement A seal arrangement having a bore within which a component is to be received, in use, the seal arrangement comprising a seal member formed from a resilient material, the seal member having an inner periphery and an outer periphery and being provided with a... | 08/27/2002 |
| 6428014 | Piston sealing ring assembly A piston sealing ring assembly (70) for sealing the piston/cylinder interface of a double-acting gas compressor including a first and second cut piston sealing ring (54,72) each bounded by first and second planar surfaces (6,8), the first piston sealing r... | 08/06/2002 |
| 6419234 | Oil sealing ring The present invention relates to an oil sealing ring, especially that used in piston of internal combustion engine or compressor. This oil sealing ring comprises a base ring (2) with a split. An elastic ring (3) is provided in the inner circumference surf... | 07/16/2002 |
| 6398225 | Seal for a rotary valve for high temperature and high pressure fluids An improved seal for a rotary valve for high temperature and high pressure fluids. A removable seal member adapted for disposition between a valve body and a valve member rotatably disposed in the valve body is provided. In one aspect of the invention, th... | 06/04/2002 |
| 6382940 | High pressure plunger pump housing and packing A Y-block fluid section plunger pump housing has a cylinder bore which is transversely elongated at its intersection with suction and discharge bores to provide stress relief and a reduction in housing weight. An integral suction valve retainer arm furthe... | 05/07/2002 |
| 6378872 | Seal assembly In an annular groove carried by one of a pair of reciprocally movable members, a pin extending into the annular groove and a sidewall of the other one of the pair of reciprocally movable members, a seal assembly comprising a ring carried by an annular bod... | 04/30/2002 |
| 6378875 | Sealing ring The invention relates to a sealing ring for sealing a piston rod of a piston compressor. The sealing ring comprises three segments, wherein the segments have portions extending in the circumferential direction of the sealing ring, which form an overlappin... | 04/30/2002 |
| 6347575 | Low emission piston and ring for internal combustion engine A piston and compression ring combination with a piston having a generally cylindrical configuration for mounting in a cylinder of an internal combustion engine, an annular groove adjacent the top of the piston; and a piston ring having an upper inwardly ... | 02/19/2002 |
| 6322080 | Sealing arrangement Sealing arrangement for a piston rod with a circular cross-section, comprising a one-piece sealing ring with a parting joint and compensation clearance as well as a cover ring surrounding the sealing ring in the peripheral direction, with the sealing ring... | 11/27/2001 |
| 6286837 | Compressor piston rod packing ring set A set of piston rod packing rings for use in each of the packing cups of a gas compressor is disclosed. The packing ring set includes segmented first and second rings constructed of a material such as plastic, nylon, Teflon or bronze. The segments of the ... | 09/11/2001 |
| 6283478 | Piston ring structural body and method of mounting the piston ring structural body The present invention provides a piston ring structural body composed of an outer ring continuously formed of a resinous material, an inner ring continuously formed of a resinous material and a ring tensile force applying member for pressing the outer rin... | 09/04/2001 |
| 6257590 | Sealing structure and method of mounting piston ring structural body for use in the sealing stucture The present invention provides a sealing structure employing a piston ring structural body of a type wherein an outer ring continuously formed of a resinous material is pressed radially outwards by a metal coil expander via a metal inner ring provided wit... | 07/10/2001 |
| 6254103 | Seal A seal comprises a support member having an outer periphery of substantially circular form, and a resilient seal member mounted upon the support member, the seal member, when occupying a relaxed condition, having an outer periphery of generally circular f... | 07/03/2001 |
| 6217030 | Seal assembly A seal for acceptance in an annular gland in a piston comprises an annular primary sealing element, an annular secondary sealing element disposed radially inwardly of the primary sealing element, and a pair of axially spaced back up rings disposed in axia... | 04/17/2001 |
| 6193236 | Packing seal having at least two axially adjacent segment rings A packing seal is provided which is intended in particular for reciprocating piston engines and which can be placed into a circumferential groove of a piston of such a reciprocating piston engine. The packing seal includes a first segment ring (1), which ... | 02/27/2001 |
| 6105970 | Seal arrangement A sealing arrangement for establishing a seal between two machine elements, such as a rod or piston undergoing axial motion within a housing. A rod or piston seal is arranged in a groove of the second machine element, which typically is the housing of the... | 08/22/2000 |
| 6073935 | Leaktight seal device for lower arm of a spark erosion machine or electrical discharge machining (EDM) device The leakproof sealing device for the lower arm of a spark erosion machine (also known as an electrical discharge machining (EDM) device) is made to fit a variety of existing spark erosion machines, each having different size windows. A slidable metal band... | 06/13/2000 |
| 6039321 | Piston ring device for use in a combustion engine of a vehicle A piston ring device for use in a combustion engine of a vehicle includes a compressing ring, a zigzag-shape oil ring and an auxiliary ring which is piled up from the auxiliary ring and combined with each other, so that the piston ring device can be easil... | 03/21/2000 |
| 5988649 | Fractured seal ring A seal ring for placement in the space between a radial groove of a cylindrical member and a housing forming a bore in which the cylindrical member is movably positioned, which is free of scoring and has a fracture line through its thickness to form oppos... | 11/23/1999 |
| 5934175 | Cylindrical working member and system employing same An improved cylindrical working member and associated system comprising a simple cylindrical sleeve having an outer surface with two spaced grooves surrounding a cylindrical land. At the other end, a single groove is formed. A "SANDWICH" consisting of a s... | 08/10/1999 |
