Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Oil lubrication of vacuum pump with pulsating oil feed

Oil lubrication of vacuum pump with pulsating oil feed

US Patent 4478562 · Granted Oct 23, 1984

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Yarn traversing mechanism for winding apparatus2000
Apparatus for spinning a synthetic yarn2000
Process and apparatus for cooling melt spun filaments during formation of a mult1999
Spin beam for spinning a plurality of synthetic filament yarns and spinning mach1999
Method for spinning a synthetic yarn1998
Heating apparatus for an advancing yarn1998
Method and apparatus for spinning a synthetic multi-filament yarn1997
Method and apparatus for producing a multifilament yarn by a spin-draw process1997
Method of marking the end of a yarn wound on a package and apparatus for carryin1997
Yarn false twist crimping apparatus1997
Heater for an advancing yarn1996
Method and apparatus for heating a synthetic filament yarn1996