Bizarre Patents
Decorative Jeweled Wheel Cover
An improved wheel is provided wherein decorative items such as gem stones are embedded in either the wheel surface, a special mounting section attached to the wheel surface, or to a spoke strap that wraps around each spoke and positions embedded gem stones on the outside surface of the spoke.
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| Number | Title | Issue Date |
| 7870669 | Multi-axially forged piston A multi-axially forged mono-bloc piston includes a lower crown part forged of steel and including a pair of pin bosses and an integral skirt formed as one piece with the pin bosses 20. The lower crown part is friction welded to an upper crown part to form at ... | 01/18/2011 |
| 7827683 | Method for forming tapered piston pins A method is provided for cold forming center web or webless tapered piston pins in one forming sequence. The method eliminates secondary operations such as but not limited to machining, annealing, coating and secondary forming. The method includes the steps o... | 11/09/2010 |
| 7234285 | Apparatus for manufacturing flexible packages having slide closures Vertical form fill seal apparatus for making flexible packages with slider fastener closures is provided. A fastener track is applied in-line with a plastic web and is bonded thereto at the same time that a peel seal is formed. All package components are brought tog... | 06/26/2007 |
| 6973723 | Piston formed by powder metallurgical methods A piston includes a piston structure being unitarily formed in a powder metallurgy process, the piston structure having a crown assembly and a skirt assembly, at least a partial combustion chamber being formed intersecting a piston crown surface during the powder me... | 12/13/2005 |
| 6938603 | Method for the production of a one-piece piston for an internal combustion engine A method for the production of a one piece piston for an internal combustion engine. The piston has a ring shaped cooling channel arranged in an outer region of a piston head. The channel is partially closed off by a circumferential projection structured as an oil g... | 09/06/2005 |
| 6935221 | Method for manufacturing an aluminum die cast piston for reciprocating compressors A die cast aluminum piston for a reciprocating compressor. The piston is cast with no coring and thus includes no aperture in the as-cast piston for a wrist pin. The aperture for the wrist pin is subsequently formed in the wrist pin in a preselected location after c... | 08/30/2005 |
| 6789313 | Piston pin lock ring insertion tool and method A piston-pin lock-ring-insertion tool has a ring-insertion tube (1) in ring-insertion relationship to a ring pusher (2). The ring-insertion tube has an inside periphery with a press-close taper (8) that is tapered inwardly from a ring-feeder end... | 09/14/2004 |
| 6550138 | Piston pin assembly A method for reducing the incidence of piston pin failure by providing a retainer assembly for piston pin plugs such that the plugs cannot be removed or shaken lose during operation. A plastic rod is inserted into the piston pin, and the rod is ultrasonic... | 04/22/2003 |
| 6402484 | Refrigerant compressor and method for assembling The invention concerns a refrigerant compressor with a cylinder block (1), a valve plate (4), a pipe connectable or connected with a suction muffler, a cover (2) covering the valve plate (4), a first sealing (3) between cover and valve plate and a second ... | 06/11/2002 |
| 6345599 | Piston for internal combustion engines A light metal piston for internal combustion engines which includes a bearing bushing comprising a shell wrapped from a rolled strip or band shaped metal material. The shell has a butt joint which is closed in a pressed-in state, with a preferred orientat... | 02/12/2002 |
| 6318242 | Filled hydraulic piston and method of making the same The present invention relates to a filled piston assembly for a hydraulic pump or motor. The filled hydraulic piston assembly includes a blank piston body having first and second ends and a cavity or compartment in the piston body extending inwardly from ... | 11/20/2001 |
| 5255592 | Wrist pin and method for manufacturing a wrist pin A wrist pin is provided for connecting a connecting rod to a piston, comprising a cylindrical aluminum pin having an outer cylindrical surface, the pin being matingly insertable into a bore of a piston, the outer cylindrical surface having an anodized coa... | 10/26/1993 |
| 5228194 | Maine propulsion device with closed deck Disclosed herein is an engine comprising a closed deck cylinder block including a cylinder bore having an outer end, a counter bore at the outer end of the cylinder bore, and an outer wall including an outer cylinder head mounting surface extending from t... | 07/20/1993 |
| 5114262 | Hollow ceramic piston pin A hollow ceramic piston pin has a pair of ribs in the form of partition walls axially separating the inside thereof. The piston pin has the ribs in the axial positions where it mates diameterially opposed inner ends of piston pin bosses of a piston and op... | 05/19/1992 |
| 5094149 | Pistons having a component incorporated therein Pistons and a method for making them are described. The pistons have reinforcing components, such as piston ring groove inserts, incorporated therein. The reinforcements have one or more porous bodies joined thereto, for example, by brazing and which are ... | 03/10/1992 |
| 5076149 | Wrist pin, piston assembly and method for making same A piston assembly is disclosed having a wrist pin for pivotably attaching a connecting rod to a piston for use in an internal combustion engine. The wrist pin is formed from an elongated circular cylindrical body having a pair of deformable sections forme... | 12/31/1991 |
| 5056218 | Method of making a hollow metal piston having elastic strip casted to its skirt A light metal piston for internal combustion engines has a pair of inserts on the inside of upper piston skirt made of a material of lower thermal expansion coefficient than that of the light metal, such as steel. Each insert has a pair of bands which are... | 10/15/1991 |
| 4852231 | Piston wrist pin installation and removal device and method of using A device for installation and removal of a wrist pin from a piston includes a press pin having an upper end for engaging a hydraulic ram and a lower end section of reduced diameter which engages into the bore of the upper end of a wrist pin. The lower end... | 08/01/1989 |
| 4578849 | One-piece yoke thrust bearing for a piston and connecting rod assembly and method utilizing said bearing A method of assembling a piston, connecting rod, wrist pin, and yoke thrust bearing is disclosed wherein the method comprises the steps of disposing between the piston and connecting rod, a one-piece yoke thrust bearing thereby providing a bearing surface... | 04/01/1986 |
| 4572058 | Piston cylinder system, especially for internal combustion engines To reduce deformation of the piston pin for the rotating connection of a ton and a connecting rod in a piston cylinder system, especially in internal combustion engines, where the piston pin is made of fiber-reinforced composite material in which fibers ... | 02/25/1986 |
| 4515003 | Piston shaping A method of shaping the gudgeon pin bores formed in gudgeon pin bosses of pistons comprises introducing into the bores portions of a pin-shaped tool before the insertion of the gudgeon pin. A load is applied to the pin-shaped tool and the direction of the... | 05/07/1985 |
| 4461595 | Wrist pin for reciprocating engines A wrist pin for coupling a connecting rod to a piston in an engine is disclosed. The pin takes the form of a metal tube having a specially designed aperture with an increased surface area in comparison with conventional wrist pins having bores with circul... | 07/24/1984 |
| 4430906 | Composite wrist pin and process A lightweight composite wrist pin is provided to decrease fuel consumption, attenuate noise, and permit increased speed of operation.... | 02/14/1984 |
| 4406558 | Gudgeon pin A device, such as a gudgeon pin, for connecting a piston of a reciprocating internal combustion agent to a connecting-rod comprises at least in part a fibre-reinforced composite material. The device further comprises a metallic sliding bearing having a ci... | 09/27/1983 |
| 4358881 | Method for manufacturing a piston with a separate skirt A method for manufacturing a piston for internal combustion engines, compressors and the like, comprising a head portion articulately connected to a separate skirt portion, wherein the skirt portion comprises a steel tubular part obtained by cutting, bend... | 11/16/1982 |
| 4300274 | Method of manufacturing connecting rod for axial cylinder-type reciprocating piston engine A method of manufacturing a connecting rod for reciprocating piston engines, especially axial cylinder-type reciprocating piston engines, with the connecting rod including a tubular shaft having hollow spherical shells mounted at the ends thereof. The tub... | 11/17/1981 |
| 4189932 | Piston pin bore and method of finishing A piston comprises a piston pin bore adapted to at least partially contain a piston pin. The bore is finished by a roll burnishing process which substantially simultaneously prestresses, smooths and distorts the bore into a predetermined hourglass configu... | 02/26/1980 |
| 4182012 | Method of making a piston with a gudgeon pin The invention relates to a piston assembly for compressor and the method of making the assembly. A piston body is molded with spaced apart downwardly open grooves formed with concave semicylindrically shaped summits and parallel side walls. The summits an... | 01/08/1980 |
