Non-contacting, gap-type seal having a ring with a patterned microdam seal face
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 25, 1992
Grant Date -
N/A
app pub date -
Jul 17, 1990
filing date -
Jul 17, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A seal face of a ring used in a non-contacting, gap-type seal having an annular groove area with microdams, each having a preferable width of about 0.025 inches, between a plurality of groove surface areas. The microdams provide a boundary to the groove surface areas whereby the recess of each groove surface area bounded by the microdams acts as a unitary pressure zone and the pressure in the separate zones decreases in a series of steps as measured from one circumference of the ring to the other circumference.
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