Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Face seal with angled grooves and shallow annular groove

Face seal with angled grooves and shallow annular groove

US Patent 5556111 · Granted Sep 17, 1996

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Secondary seal for non-contacting face seals2001
Spiral groove face seal1998
Face seal with angled grooves and shallow annular groove1997
Secondary seal for non-contacting face seal assembly1996
Mechanical seal with spring drive1996
Non-contacting seal with centering spring mounted in dovetailed grooved1996
Face seal with angled grooves1996
Fluid film seal1995
Non-contacting face seal1994
Rotary vacuum valve1990
Spiral groove seal system for high vapor-pressure liquids1989
High pressure upstream pumping seal combination1981