Control switch

Details Control switch Control switch

1992-10-13

1993-06-08

Tanner, Harry B.

Refrigeration

With indicator or tester

Condition sensing

62126, 622283, F25B 4902

Patent

active

052168948

ABSTRACT:
A control switch comprises a bellow which contracts and expands pressure of the refrigerant, a lock/unlock member which cooperates with the existence of the pressure of the refrigerant, a spring for forcing the lock/unlock member against the pressure of the bellow, and a rotatable shaft operatively disposed through the lock/unlock member. The lock/unlock member has an unlock slot proximate the bellow, a lock slot distal the bellow, and a tapered transition portion between the unlock slot and the lock slot. The shaft is a polygonal, e.g. hexagonal, which fits into the lock slot when the pressure of the refrigerant is under a predetermined value. The user is made aware of the leakage of the refrigerant by the restriction of the rotation of shaft or a break in the power circuit, or both. This prevents the operation of an inefficient in the air conditioner.

REFERENCES:
patent: 3508236 (1970-04-01), Adams
patent: 4745765 (1988-05-01), Pettitt
patent: 4966013 (1990-10-01), Wood
patent: 5009074 (1991-04-01), Goubeaux et al.
patent: 5044168 (1991-09-01), Wycoff

Affiliated with

Also associated with

Rating

Control switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1926898