Double sealing device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 19, 2017
Grant Date -
Sep 17, 2015
app pub date -
Mar 12, 2015
filing date -
Mar 12, 2014
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A double sealing device for a rotating shaft comprising a first and a second seal of annular form mounted side by side in a peripheral groove formed in a wall of a circular cylindrical housing through which the shaft to be sealed passes. At least one of a discharge or vent channel opens into the peripheral groove between the two seals. The seals comprise a carrier ring with an outer axial flange and an inner radial flange, and a sealing washer applied to each carrier ring to cover a part of an outer face of the axial flange. A sealing lip bearing is formed slidably on the shaft, the first seal sealing a first fluid medium and the second seal sealing a second fluid medium. The axial flange has an extension forming a pierced structure, not covered by the sealing washer of the seal, and disposed facing the peripheral groove.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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