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. 24, 1990
Filed:
Dec. 30, 1985
Applicant:
Inventors:
Hartmut Hensel, 3000 Hannover 1, DE;
Oliver Laing, San Diego, CA (US);
Karsten Laing, 7148 Remseck-2, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M / ;
U.S. Cl.
CPC ...
123533 ; 123 / ; 92173 ;
Abstract
The invention relates to reciprocating machines with pistons being lubricated by a gas film which is built-up by rotation of the piston in the cylinder, both piston and cylinder consisting preferably of ceramic materials. The invention relates furthermore to engines comprising rotating pistons.