Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Two stage control circuit for reversible air cycle heat pump

Two stage control circuit for reversible air cycle heat pump

US Patent 4346755 · Granted Aug 31, 1982

Estimated economic value: $4,564,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Infrared non-contact temperature measurement for household appliances2000
Flexible eddy current surface measurement array for detecting near surface flaws1995
Control system, method of operating a heating apparatus and controlled heating a1993
Autonomous active clamp circuit1992
Microprocessor-based protective relay system1991
Current sensor using hall-effect device with feedback1989
Circuit for providing on-chip DC power supply in an integrated circuit1989
Electronic starting circuit for an alternating current motor1988
Overload relay having adjustably gapped current transformers1988
Cross-cutter1988
Adjusting feedback gain in a fluorescent lamp dimming control1988
Self-calibrating control methods and systems for refrigeration systems1988