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:
Mar. 13, 2007
Filed:
Jan. 14, 2005
Applicants:
Steven J. Sytsma, Muskegon, MI (US);
Jason Bieneman, Brunswick, MI (US);
Inventors:
Steven J. Sytsma, Muskegon, MI (US);
Jason Bieneman, Brunswick, MI (US);
Assignee:
Dana Corporation, Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 9/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A secondary seal is provided for an internal combustion engine having a piston, cylinder bore, ring seal, secondary seal, and leak path. Forces are applied from the combustion side of the piston through a cylinder gap and a leak path to the secondary seal. The secondary seal, seated on the piston and ring seal, transmits the forces generally axially to the piston and ring seal, thereby controllably limiting the radial force between the ring seal and cylinder bore.