Quotables
"One of the greatest labor saving inventions of today is tomorrow!"
Vincent T. Floss
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 |
| 7131454 | Piston sealing mechanism for liquid additive injection pump A system for injecting a predetermined amount of a secondary fluid into a primary fluid stream uses a liquid additive injection pump driven by a fluid powered motor driven by the primary fluid stream. The liquid additive pump has a reciprocating piston movable withi... | 11/07/2006 |
| 7125228 | Pressure washer having oilless high pressure pump An oilless high pressure pump suitable for use in devices such as pressure washers and the like is described. The pump includes an eccentric assembly suitable for converting rotary motion of a rotating shaft to rectilinear motion. One or more straps couple the eccen... | 10/24/2006 |
| 6484622 | Variable oil ring tension mechanism A variable oil ring compression mechanism provides for real-time cyclic variation of piston ring tension in an operating internal combustion engine. A cam is situated in the gap of a piston oil control ring, the cam affixed to a shaft secured to a pivot p... | 11/26/2002 |
| 5016524 | Sealing arrangement for a piston in a compressor A continuous seal ring member fitted in a ring groove of a piston of a compressor. The seal ring member has a washer-like initial shape with an internal diameter smaller than an outer diameter of the piston, whereby the inner peripheral portion of the sea... | 05/21/1991 |
| 4813342 | Cryogenic pump multi-part piston with thermal expansivity compensated polytetrafluoroethylene seal rings A reciprocating pump for a cryogenic fluid includes a pump cylinder made of a material with low thermal expansivity, a piston displaceable in the pump cylinder, and self-lubricating piston rings made of polytetrafluorethylene held on the circumferential s... | 03/21/1989 |
| 4779842 | Height-adjustable rubber pot bearing with an elastomer plate There is provided a height adjustable rubber pot bearing for supporting or lifting bridges. The pot bearing has an elastomer plate for transmitting and lifting or lowering loads wherein pressurized fluid is introduced between the bottom of the pot and the... | 10/25/1988 |
| 4724746 | Tilting bearing pads for improved lubrication A reciprocating machine component, such as a piston of an internal combustion engine or a compressor, is provided with bearing pads for transmitting lateral thrust to an associated guide surface, such as a cylinder or liner. The bearing pads are mounted s... | 02/16/1988 |
| 4687182 | Height adjustable pot bearing A height adjustable pot bearing is provided having a pot, a steel cover plate and an elastic plate of substantially incompressible elastomeric material disposed in and completely filling the pressure chamber defined between the cover plate and the pot. A ... | 08/18/1987 |
| 4363606 | Free piston pump for pumping liquids from a well A free piston pump for use in a well for permitting gas to lift fluid to the well surface. The piston pump includes a body which supports a plurality of vertically and horizontally spaced piston segments which are sealingly engaged to form a piston. The s... | 12/14/1982 |
| 4143586 | Mud pump piston A mud pump piston comprising an annular elastomeric ring having an annular circumferential surface defining an acute angle circumferential tip of relatively small area which engages the pump cylinder wall and an annular anti-extrusion ring connected to an... | 03/13/1979 |
