Rotary shaft seal for drill bit cutters
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 -
Sep 18, 1986
filing date -
Jun 13, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary shaft seal for the rotary cutter of a each boring drill bit includes a fixed seal ring fitted securely in the cutter and having an end face which includes a first tapered surface, a floating seal ring having an end face, which includes a second tapered surface opposing the first tapered surface, and a curved inner circumferential surface, and a resilient O-ring compressed between the curved inner circumferential surface of the floating ring and a bearing portion on which the cutter is rotatably journalled.
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