Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Valve which is opened by reduced pressure

Valve which is opened by reduced pressure

US Patent 4613111 · Granted Sep 23, 1986

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Compact leak detector2002
Apparatus for re-homogenizing a gas/liquid mixture1994
Gas pumping installation having means for regulating its pumping speed1993
Pumping apparatus for pumping a gas by means of an oil-sealed vane pump and appl1993
Valve and apparatus using said valve1991
Anti-return safety apparatus1991
Rotary screw machine with multiple chambers in casing for lubrication-coding flu1991
Method and device for mechanical testing of civil engineering structure surfacin1989
Oil-sealed vane pump1986
Oil-sealed vane pump1986