The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 1986
Filed:
May. 07, 1980
Applicant:
Inventor:
Horst Moebus, Neckarsulm, DE;
Assignee:
Karl Schmidt GmbH, Neckarsulm, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ; F01B / ; B23K / ; F16J / ;
U.S. Cl.
CPC ...
92186 ; 2915 / ; 92222 ; 92231 ; 92260 ; 123 4135 ; 1231 / ; 2191 / ; 2191 / ;
Abstract
In a cooled composite piston having a cooling passage adjacent to the interface and a method of making same, the upper part consists of forged steel and is formed on its underside with ribs bearing on mating surfaces of the lower part. To improve the resistance to thermal and mechanical stresses, the upper part has been welded by means of charge carrier rays to the lower part, which consists of cast ferrous material.