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A forehead support apparatus for resting a standing users forehead against a wall above a bathroom commode or urinal or beneath a showerhead.
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| Number | Title | Issue Date |
| 7066078 | Piston for internal combustion engine By casting a preformed member composed of a fiber reinforced material into a base material of a piston, a pair of crown reinforcing portions corresponding to respective pin boss portions are formed on a crown portion, and the pair of crown reinforcing portions are c... | 06/27/2006 |
| 6112802 | Process for producing an intermetallic join The aim is to improve the strength of an intermetallic bond between engine component made from an aluminium alloy and a reinforcing element made from austenitic cast iron. For that purpose, the reinforcing element is annealed in a decarbonising atmosphere... | 09/05/2000 |
| 5979298 | Cooling gallery for pistons A cast piston having a metal insert that includes a cooling gallery and defines a piston ring groove. The piston insert includes an annular base having an annular cavity formed therein and an annular ring which extends radially outward from the base. A ca... | 11/09/1999 |
| 5251540 | Piston having an aperture with an insert secured therein A piston, e.g. for an internal combustion engine, comprises a crown (16) and a skirt (12). The skirt (12) has an aperture (22) in which an insert (14) of a different material from the remainder of the skirt is secured. The insert (14) may be of plastics m... | 10/12/1993 |
| 5158008 | Light plunger piston for internal combustion engines A piston having a head with ring grooves, a skirt having hub bores, and a pin, with the following dimensions: L/D=0.45-0.8 H/D=0.25-0.5 A/D=0.3-0.5 T/D=0.45-0.8 where L=maxium length of the piston D=maximum diameter of the piston H=compression height A=maximum skir... | 10/27/1992 |
| 5048398 | Single, light-weight and low friction light-metal piston for internal-combustion engines The technical problem is to reduce the operating noise of such a piston. It is solved by means of a piston having the following dimensions: a) A=(0.45-0.65) D; b) H=(0.25-0.4) D; c) A=(0.3-0.4) D; d) A greater than or equal to B; e) T=(0.45-0.8) D; f) the... | 09/17/1991 |
| 5014603 | Hydraulic actuator having frangible or deformable components A linear hydraulic actuator of small size having limited clearance between the inside of the cylindrical housing and the outside of the piston rod is provided with a deformable or frangible piston of an engineered plastic material which is sufficiently st... | 05/14/1991 |
| 5000078 | Light metal trunk piston for internal combustion engines The external profile of a piston rod employed in the engines of passenger cars ensures smoother piston travel on start-up and during partial loading. In these operating ranges, piston ring parts may impact on the sliding surface of the cylinder on the cou... | 03/19/1991 |
| 4890543 | Light metal piston for internal combustion engines and method of making the same 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... | 01/02/1990 |
| 4887519 | Expansion-controlled light alloy piston In expansion-controlled light alloy pistons for internal combustion engines, expansion control elements made of steel are bonded to the carrying portions of the cast skirt on the inside peripheral surface thereof and are embedded in the hubs of the piston... | 12/19/1989 |
| 4735128 | Piston A piston for internal combustion engines made of a light alloy and comprising a skirt portion and a head portion, having a ceramic insert adapted on the head portion and connected to same by mechanical locking. The ceramic insert is provided with pores at... | 04/05/1988 |
| 4730549 | Light-metal reciprocating piston A piston made of cast aluminum base alloy is provided with gudgeon pin bosses which are connected to the piston skirt by means of a frusto-conical strut which has recesses in the skirt and are specially dimensioned to leave large unsupported skirt areas t... | 03/15/1988 |
| 4677900 | Pistons for internal combustion engines A piston carries on its skirt surface a number of separate strips of a plastics material, such as a polyetheretherketone alloy, so that the strips are hydrodynamically lubricated and transmit lateral thrust from the piston to an associated cylinder or lin... | 07/07/1987 |
| 4669366 | Aluminum plunger piston with thermal expansion regulating strip, for internal combustion engines In a plunger piston for internal combustion engines, having a regulating strip in the piston body, the regulating strip is arranged in the axial middle third of the height of the piston body and the regulating effect is designed so that the piston body po... | 06/02/1987 |
| 4599936 | Integral strut and piston groove protector An integral strut and groove protector assembly is provided for incorporation within a light metal piston. The assembly includes a ring groove protector, an expansion control strut, and a connecting member connecting the groove protector and strut. All ar... | 07/15/1986 |
| 4314531 | Pistons and cylinder liners A piston mainly composed of an aluminium alloy for use in a cylinder of aluminium alloy. The piston is provided with one or more inserts of ferritic steel. The insert or inserts extend across opposed thrust faces of the piston and form part of the running... | 02/09/1982 |
| 4228727 | Pistons A cast light metal piston has a plurality of longitudinally extending reinforcing members. These reinforcing members may be disposed at predetermined positions in the piston as cast and are designed to impart a compressive stress to the material of the pi... | 10/21/1980 |
| 4074617 | Pistons for internal combustion engines or for compressors A light metal piston for an engine or compressor has two sheet steel inserts. Each insert has two pairs of elongated bands extending circumferentially away from a gudgeon pin boss. The bands nearer the crown end of the piston skirt are longer than those n... | 02/21/1978 |
