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:
Jan. 04, 2005
Filed:
Oct. 19, 2001
Applicant:
Martin Rühle, Stuttgart, DE;
Inventor:
Martin Rühle, Stuttgart, DE;
Assignee:
Mahle GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 1900 ;
U.S. Cl.
CPC ...
Abstract
To prevent, in a cooled ring carrier () for pistons, durinh Alfin bonding, the formation of oxides induced by air that escapes due to porous ring carrier material and, as a consequence, an impairment of the ring carrier bond. To this end, the cooled ring carrier, once the ring carrier part and the sheet metal part () have been linked, is subjected to negative pressure in a vacuum tank.
Rühle, Martin. (2005). Method of producing by casting a piston with a cooled ring carrier (U.S. Patent No. 6837298). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6837298
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile