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Class Information
Number: 92/225
Name: Expansible chamber devices > Piston > Open-ended hollow skirt type (e.g., trunk type) > Specific or diverse material; or welded, brazed or soldered joint > Element of diverse material for limiting radial movement of skirt part
Description: Apparatus in which the piston is provided with an element formed of material other than the material forming the skirt-like member, said element being positioned in engagement with a skirt portion, and being effective to restrain movement of said skirt portion in a direction normal to the longitudinal axis of the piston.

Sub-classes under this class:

Class Number Class Name Patents
92/226 Bi-metallic restraining element 0
92/228 Element portion embedded in piston part 19
92/227 Element positioned about periphery of skirt 16

Patents under this class:

Patent Number Title Of Patent Date Issued
6240828 Piston of internal combustion engine Jun. 5, 2001
6112802 Process for producing an intermetallic join Sep. 5, 2000
5251540 Piston having an aperture with an insert secured therein Oct. 12, 1993
5158008 Light plunger piston for internal combustion engines Oct. 27, 1992
5054375 Piston for internal combustion engine Oct. 8, 1991
5048398 Single, light-weight and low friction light-metal piston for internal-combustion engines Sep. 17, 1991
4890543 Light metal piston for internal combustion engines and method of making the same Jan. 2, 1990
4887519 Expansion-controlled light alloy piston Dec. 19, 1989
4730548 Light metal alloy piston Mar. 15, 1988
4669366 Aluminum plunger piston with thermal expansion regulating strip, for internal combustion engines Jun. 2, 1987

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