PISTON RING AND METHOD FOR THE PRODUCTION THEREOF
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United States of America Patent
Stats
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N/A
Issued Date -
Apr 2, 2015
app pub date -
May 16, 2012
filing date -
May 21, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
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Abstract
A piston ring for pistons of internal combustion engines, comprising a ring running surface coated with a coating agent, a ring back, and two ring abutting ends spaced apart by a gap. In the region of at least one of the ring abutting ends, a groove running in the circumferential direction is provided in the ring running surface, the groove being filled up with the coating agent such as to be flush with the coated ring running surface.
First Claim
Other Claims data not available