US Patent 7188841 Secondary piston seal

Patent 7188841 was granted and assigned to Dana Incorporated on March, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

All edits

Edits on 6 Sep, 2023

"Add patent inventor(s)"

Golden AI

edited on 6 Sep, 2023

Edits made to:

Infobox (+2 properties)

Infobox

Patent Inventor Names

Jason Bieneman0

Steven J. Sytsma0

Edits on 1 Sep, 2023

"Add patent abstract"

Golden AI

edited on 1 Sep, 2023

Edits made to:

Article (+483 characters)

Article

Patent 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.

Edits on 22 Jul, 2023

"Remove website redirecting to Patent Public Search front page"

Golden AI

edited on 22 Jul, 2023

Edits made to:

Infobox (-1 properties)

Infobox

Official Website

https://pdfpiw.uspto.gov/.piw?Docid=071888410

Edits on 23 May, 2023

"Remove leading 0 from patent number"

Golden AI