Bizarre Patents
Mouse device with a built-in printer
A mouse device for use as an input device of a computer is provided that includes a housing in which recording paper is loadable, and a printer unit provided within the housing for printing on the recording paper print information received from the computer.
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| Number | Title | Issue Date |
| 7429048 | Piston ring with projection A piston ring is positioned in a groove of a piston and has an outer peripheral face. The outer peripheral face is generally tapered to an edge and includes a projection. The projection extends radially outwardly from the outer peripheral face along an upper surface... | 09/30/2008 |
| 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 |
| 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 |
| 7284758 | Textured seal for reduced wear The present invention relates to seals having textured features. The present invention particularly relates to seals having contact surfaces with said features wherein the contact surface seals properly and is resistant to wear. The contact surface is able to perfor... | 10/23/2007 |
| 7261301 | Oil scraper ring for pistons of internal combustion engines The invention relates to an oil scraper ring for pistons of internal combustion engines, said oil scraper ring comprising a disc (1) provided with a bearing surface (h) having an asymmetrical crowned form with a vertex line (3) extending over the perip... | 08/28/2007 |
| 7252292 | Oil ring for an internal combustion engine An oil ring for an internal combustion engine, comprising a metallic annular body (10) to be mounted around a piston (P) reciprocating inside a cylinder (C) of the engine, said annular body (10) having opposite lateral faces (11), an internal fa... | 08/07/2007 |
| 7207571 | Steel piston ring In a corner portion (2) defined between an outer peripheral surface (4) and a lower-side surface (3) of a steel piston ring (1), a groove (5, 6) having either an approximately quadrangular shape with a length of one side of 0.05 to... | 04/24/2007 |
| 7163615 | Method of treating substance to be degraded and its apparatus There is provided a method of treating a substance to be degraded comprising the steps of: degrading the substance to produce a degraded product; contacting the product obtained in the degrading step with a liquid; and entrapping a component of the product not trapp... | 01/16/2007 |
| 7083170 | Rod or piston primary seal A rod or piston primary seal, which includes a primary seal (2) facing the space (1) to be sealed and a secondary seal (3) facing away from it, in which the primary seal (2) is fitted into the groove (4), of a holding element (5... | 08/01/2006 |
| 7044473 | Piston and piston ring assembly Two seal rings are provided comprising an upper ring and a lower ring, the rings having a common axis, a common outer cylindrical surface, a common inner cylindrical surface, and a couple of facing surfaces. The facing surfaces form an engaging length in a radial se... | 05/16/2006 |
| 6962343 | Seal ring A seal ring is provided, which is capable of maintaining a stable sealing performance for a long period, in which a cut portion is provided at one position in a circumferential direction of a seal ring, a convex portion is provided at a first cut end portion, a rece... | 11/08/2005 |
| 6793222 | Oil scraper piston ring having circumferentially distributed recesses An oil scraper piston ring includes an inner circumferential surface; an outer circumferential surface adapted to contact and slide along an inner wall of an engine cylinder; a radial wall thickness defined by a radial distance between the inner and outer circumfere... | 09/21/2004 |
| 6715767 | Angled gap compression rings with end relief An engine piston compression ring designed to reduce the negative effects of ring end butting and reduce blowby. The compression ring has a gap forming an angle with a longitudinal axis of the ring or with a radius drawn from the axis. A relieved portion is provided... | 04/06/2004 |
| 6685193 | Self lubricating, non-sealing piston ring for an internal combustion fastener driving tool A non-sealing, lubricating piston ring for lubricating the cylinder wall of a piston housing in a combustion tool is disclosed. The lubricating piston ring is made from a lubricating material such as polytetrofluroethylene (PTFE). The shape of the PTFE ri... | 02/03/2004 |
| 6543784 | Wear compensating plunger-and-barrel seal for hydraulic fuel injectors In a fuel injector having a plunger-and-barrel pumping assembly, a sealing member is mounted within an annulus of a plunger to prevent the dilution of pressurized fuel within the barrel of the tool. The sealing member includes a hollowed cavity which trap... | 04/08/2003 |
| 6517081 | Machinery seal A seal assembly for a groove or seal gland in a relatively displaceable machine part for sealing an axial machine part extending therethrough comprises a pair of annular seal elements and a support element disposed between the annular elements and radiall... | 02/11/2003 |
| 6439578 | Sealing ring combination Two axially abutting individual rings (4, 5) arranged in a shared casing recess (3) at the passage (6) of a component (2) to be sealed, which each is formed of several ring segments (4', 5') pressed against the component (2) to be sealed by a common perip... | 08/27/2002 |
| 6367808 | Sealing ring for a dry running piston rod A sealing ring, in particular for a piston rod with a circular cross-section, which has a height in the axial direction as well as a surface oriented towards a sliding surface, with the surface being executed to extend cylindrically over a part of the hei... | 04/09/2002 |
| 6341782 | Lubricated seals having micropores A lubricated hydrostatic seal comprising (a) surface regions having opposing surfaces; (b) a plurality of micropores in one or more of said surfaces having a pore geometry; and (c) a flow of fluid between said surfaces, wherein said flow of fluid past sai... | 01/29/2002 |
| 6340161 | Machinery seal A seal assembly 20 for a groove 12 or seal gland in a relatively displaceable machine part 10 for sealing an axial machine part 18 extending therethrough comprises a pair of annular seal elements 30 and a support element 50 disposed between the annular el... | 01/22/2002 |
| 6189893 | Piston ring A nitrated piston ring for the piston of an internal combustion engine. The piston ring has a circumferential indentation in its flank surface facing away from the combustion pressure. This indentation has a depth of a few Am and receives lubrication to p... | 02/20/2001 |
| 6158744 | Seal arrangement providing a seal between a bore and a rod movable in the bore A seal arrangement is disclosed that provides a seal between a bore and a rod movable in the bore with a gap formed between the bore and the rod. The seal arrangement includes a floating elastomeric sealing ring which is accommodated in a circumferential ... | 12/12/2000 |
| 5794941 | Piston ring assembly An improved piston ring assembly comprises a double-offset expander spring and a piston ring. The expander spring has a first wave portion that is continuously engaged in an annular groove of a piston body, the wave portion having an axial extent that is ... | 08/18/1998 |
| 4785922 | Gun recoil mechanism A constant-pressure hydraulic shock-absorbing device suitable for use as a recoil brake in a weapon system. By use of a piston that decreases in diameter as the applied force increases, a constant resistive force independent of the applied force is obtain... | 11/22/1988 |
| 4776261 | Reciprocating engine piston seal Apparatus for sealing the gap between a piston and engine cyinder wall of either a reciprocating engine or a reciprocating compressor. The apparatus includes a plurality of functionally-identical, gas-bearing-supported seal blocks that locate in a slot ru... | 10/11/1988 |
| 4431200 | Back-up ring with slitted, folded portion for packing of hydraulic apparatus A back-up ring to prevent damage to a packing ring disposed in a groove on an internal piston within a cylinder. The back-up ring has a folded portion with concave and a convex surfaces to prevent damage to the ring when it is unfolded to enlarge the ring... | 02/14/1984 |
