Oil seal comprising lip seal with thermal expansion controlled reinforcing ring
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 31, 1988
Grant Date -
N/A
app pub date -
Nov 18, 1986
filing date -
Dec 26, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An oil seal of the type having a metallic reinforcement rig whose outer peripheral portion is oil-tightly fitted into a housing, characterized in that after the formation of fabrication of said metallic reinforcement ring, the latter is subjected to a nitriding hardening process so that its durability of a raw material of said metallic reinforcement ring; and a seal lip of formed over the inner peripheral edge portion of an annular flange portion of said metallic reinforcement ring.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully