Bizarre Patents
Ballistic resistant body covering
A ballistic resistant body covering for protecting the torso, groin and neck area from ballistic missiles.
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 |
| 7836816 | Retaining ring for fluid pressure cylinder A cylinder tube includes a cylinder hole therein through which a piston is displaceably inserted. A head cover and a rod cover are installed respectively into ends of the cylinder hole. Locking rings, each having a bent section, a pair of arm sections that extend fr... | 11/23/2010 |
| 7784395 | Zero emissions reciprocating pump A sealing system for a pump having a plunger includes a housing having an internal chamber adapted to receive a portion of the plunger. Primary and secondary seals are located within the internal chamber and adapted to sealingly engage the plunger. The primary seal ... | 08/31/2010 |
| 7726231 | Utility pump A lightweight, inexpensive, corrosion proof, utility pump having a flexible member forming a sliding interference fit with a pump rod with the flexible member confined between a pump rod bushing and an end cap to prevent leakage and a method of converting an inexpen... | 06/01/2010 |
| 7607383 | System for backup rod seal for hydraulic cylinder A rod sealing system for use with a hydraulic cylinder is disclosed. The hydraulic cylinder has a cylinder tube and a cylinder head defining a working chamber. A piston is disposed for linear reciprocable movement within the working chamber and is connected to a pis... | 10/27/2009 |
| 7568424 | Method and apparatus for sealing an ultrahigh-pressure fluid system A seal carrier is provided for an ultrahigh-pressure fluid system having a plunger configured to reciprocate therein along a longitudinal axis when the ultra-high pressure fluid system is in operation, the seal carrier having an inner surface provided with a first p... | 08/04/2009 |
| 7458314 | Gas spring A gas spring (1) comprises a piston rod (4) projecting from an open end of a cylinder (2) so as to be able to elongate and contract axially, and a dust seal (10) which is in contact with the piston rod (4) to prevent dust from inva... | 12/02/2008 |
| 7421782 | Method for manufacturing internal combustion engine piston A method is provided for efficiently manufacturing a high quality internal combustion engine piston having an annular cavity allowing for good circulation of cooling fluid. An annular groove is formed at the circumferential edge of the top face of a piston crown, or... | 09/09/2008 |
| 7412920 | End cap assembly A fluid activated cylinder assembly including an end cap having an annular protrusion and a hollow cylinder having an end zone. The cylinder applies compressive force to the annular protrusion in the end zone. The end zone having no accommodating cavity and no accom... | 08/19/2008 |
| 7360318 | Apparatus for aligning female connector in fixture for use in reconditioning of articulated connector An apparatus for aligning a female articulated connector while it is still mounted to the end structure of a rail car in a reconditioning fixture is disclosed. The apparatus is a centering tool having a generally annular cylindrical arc shape for placement against t... | 04/22/2008 |
| 7356938 | Bore gauge apparatus for use in reconditioning articulated connector An apparatus for measuring a reconditioned portion of an articulated connector engaged in a reconditioning fixture while it is still mounted to the end structure of a rail car is disclosed. The gauge is a generally cylindrical arc with an inner side and outer side. ... | 04/15/2008 |
| 7353748 | Linear actuator and method for processing the same A bent section, which is bent substantially perpendicularly toward a main cylinder body, is formed at one end of a slide table. Further, a pair of ball-rolling grooves, in which a plurality of ball bearings roll, are formed on side surfaces of the slide table oppose... | 04/08/2008 |
| 7343849 | Cylinder apparatus A piston, which is provided in a cylinder tube, is connected to a pair of guide rods by the aid of a plate. The guide rods are arranged displaceably in the axial direction along guide holes of the cylinder tube. The displacement of the piston is guided by the guide ... | 03/18/2008 |
| 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 |
| 7329105 | Multi-directional pump A multi-directional pump is disclosed generally comprising a housing with inlet and outlet ports, a pumping device disposed therein, a first chamber in fluid communication with the inlet port, and a second chamber in fluid communication with the first chamber. The f... | 02/12/2008 |
| 7313999 | Piston for a reciprocating machine A piston includes a piston body fitted into a cylinder bore and having a sliding peripheral surface disposed in sliding contact with the inner peripheral surface of the cylinder bore. The sliding peripheral surface of the piston body and the inner peripheral surface... | 01/01/2008 |
| 7311036 | Pneumatic cylinder A pneumatic cylinder has a shaft member having a piston and a piston rod combined with each other in an axial direction, a cylinder body supporting the shaft member with the piston rod protruding outwardly therefrom so as to freely reciprocate linearly, and porous a... | 12/25/2007 |
| 7310833 | Swimming pool lift and transfer bar A lift is provided to facilitate access to swimming pools and spas. The lift includes a base and a mast extending therefrom. An arm pivotally connects to the mast. A seat assembly connects to the arm. An overhead support is positioned above the seat assembly. A firs... | 12/25/2007 |
| 7246491 | Actuator An actuator includes a hollow cylinder which has a first portion and a second portion. The inner diameter of the first portion is larger than that of the second portion. A piston is inserted in the cylinder. The actuator has a gas generator which supplies a gas into... | 07/24/2007 |
| 7240607 | Removable end plug A pressure assembly including a cylinder, an end plug and a split ring band. The cylinder has an end, an inner surface and an outer surface. The end plug is inserted into the end of the cylinder, the end plug having an outer surface that is in partial contact with t... | 07/10/2007 |
| 7240606 | Crimped piston to rod joint A method for assembling a piston on a rod, and resultant piston and rod assembly, uses one or more lock rings that are mechanically deformed radially inwardly into respective locking grooves in the rod, thereby axially locking the lock ring to the rod. The lock ring... | 07/10/2007 |
| 7234678 | Protection system for turbo machine and power generating equipment A limit switch 6 is placed on an end portion of the trip rod 4, which converts the mechanical deviation of the trip rod 4 into an electrical signal. The electrical signal from the limit switch 6 is transmitted to quick acting solenoid val... | 06/26/2007 |
| 7225725 | Bi-directional pneumatic motor A pneumatic motor for providing bi-directional linear motion including a motor housing having a cylinder bore and a piston mounted on a piston rod positioned in the cylinder bore. The ends of the piston rod extend beyond the ends of the cylinder bore. The cylinder b... | 06/05/2007 |
| 7225722 | Linear drive A linear drive has a drive housing on which a carriage is able to run. For guiding the carriage two guide units are provided, which jointly lie in a guide plane extending perpendicularly to the upright axis of the drive housing. The guide units flank the carriage on... | 06/05/2007 |
| 7219594 | Coolant system for piston and liner of reciprocating pumps A reciprocating pump assembly includes piston rod that is movable and reciprocates in order to pump a fluid. The piston rod has a piston portion at an end that stokes within a piston chamber. The pump assembly also includes a piston rod sleeve that houses the piston... | 05/22/2007 |
| 7217105 | Integrated pump and wash pump A pump apparatus is provided which comprises a first displacement pump and a ceramic valve construction formed of a ceramic rotor, a ceramic stator having flat surfaces which are positioned in sealing relationship and a second displacement pump having check valves. ... | 05/15/2007 |
| 7214039 | Integrated ratio pump and check valve apparatus A pump apparatus is provided which comprises a plurality of displacement pumps each connected to a check valve apparatus. The displacement pumps each comprises a reciprocating piston within a housing having an interior wall spaced apart from the piston. The check va... | 05/08/2007 |
| 7210397 | Scotch yoke engine A scotch yoke type fluid device where the or each piston (32) has its own slider (18) and its own pair of sliding surfaces (30) disposed on the same side of the big end bearing (16) of the crank (12). The main crank axis (14... | 05/01/2007 |
| 7204035 | Displacement measuring system for a piston-cylinder assembly A piston rod is guided with freedom of axial movement in a cylinder, where the position of the piston rod is detected by a first position-measuring device, which travels along with the piston rod, and by a second position-measuring device on the cylinder side. The t... | 04/17/2007 |
| 7188471 | Submersible power plant A submersible power plant 10 comprises a submersible enclosure 12 having at least one intake valve 16 for admitting water at high pressure from the surrounding sea into and air space in the enclosure. An air shaft from the air space 96 is... | 03/13/2007 |
| 7165487 | Cylinder protective apparatus for preventing strange noise Disclosed is a cylinder protective apparatus for preventing strange noise in which an impact damper is fixed to an inner side of a cylinder cover to prevent collision between the cylinder cover and a cylinder or a cylinder guide from occurring, which may be caused b... | 01/23/2007 |
| 7131822 | Swash plate compressors with non-circular pistons and cylinders A swash plate compressor comprises a swash plate located for rotation in a housing and a compression unit that forms a part of the housing. The compression unit has cylinder bores that guide pistons in reciprocation as the swash plate rotates. Each cylinder bore has... | 11/07/2006 |
| 7127982 | Linear drive with non-rotating piston A fluid power linear drive including a housing having an inner surface defining a piston receiving space, a piston reciprocally movable within the piston receiving space and a cooperative engagement means provided on the inner surface of the housing and an outer sur... | 10/31/2006 |
| 7100492 | End cap assembly A fluid activated cylinder assembly including an end cap having an annular protrusion and a hollow cylinder having an end zone. The cylinder applies compressive force to the annular protrusion in the end zone. The end zone having no accommodating cavity and no accom... | 09/05/2006 |
| 7093888 | Retractable deck for a vehicle A deck for use with a vehicle having a frame includes a platform. The platform has opposite upper and lower surfaces. The platform is operatively coupled to the frame of the vehicle for selective movement between a storage position, wherein the upper surface is disp... | 08/22/2006 |
| 7083164 | Cushion and cushion cylinder for ram or bolster of a press A high-pressure, inert gas cushion assembly for the ram or bolster of a metal stamping press includes a manifold having fluid-flow passages defined therein, along with a plurality of cylinder mounting locations each in communication with at least one of the fluid-fl... | 08/01/2006 |
| 7080975 | Integrated pump and ceramic valve A pump apparatus is provided which comprises a displacement pump and a ceramic valve construction formed of a ceramic rotor and a ceramic stator having flat surfaces which are positioned in sealing relationship. The displacement pump comprises a reciprocating piston... | 07/25/2006 |
| 7056100 | Piston assembly for a compressor A compressor for a vehicle air conditioning system comprises a front casing in which is mounted a swash or wobble plate arrangement operatively connected to a drive shaft and a plurality of pistons each provided with a piston body at one end and a foot portion at it... | 06/06/2006 |
| 7048091 | Portable lifeguard chair A portable chair is disclosed having a seat, a frame that supports the seat, a ladder that provides access to the seat; and a hollow tank that holds a liquid mass, connected to the frame. The frame includes first and second side supports each having a forward suppor... | 05/23/2006 |
| 7017671 | Mud saver valve A mud saver valve being operable in conjunction with a top drive unit to retain mud in the top drive unit when a tubular is disconnected therefrom. The valve utilizes a spring-loaded piston to control the flow of mud or other fluid onto the work area and environment... | 03/28/2006 |
| 7017346 | Device for transmitting a displacement of an actuator using an elastomer ring A device for transmitting a displacement of an actuator to a setting element comprises two pistons that delimit two transmission chambers and a compensation chamber with a housing. The compensation chamber is hydraulically connected to the two transmission chambers.... | 03/28/2006 |
