Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Modular unload slide valve control assembly for a helical screw rotary compressor

Modular unload slide valve control assembly for a helical screw rotary compressor

US Patent 4508491 · Granted Apr 2, 1985

Estimated economic value: $845,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Screw step drive internal volume ratio varying system for helical screw rotary c1990
Vertical axis hermetic helical screw rotary compressor with discharge gas oil mi1985
Vertical axis hermetic helical screw rotary compressor with discharge gas oil mi1984
Oil equalization system for parallel connected compressors1983
High speed variable delivery helical screw compressor/expander automotive air co1980