Sealed level control switch for sump pumps

Details Sealed level control switch for sump pumps Sealed level control switch for sump pumps

1975-01-20

1977-01-04

Smith, Jr., David

Electricity: circuit makers and breakers

Float

Float and pressure

73308, H01H 3518

Patent

active

040015335

ABSTRACT:
The control for electric sump pumps is operated by a pair of weights operatively attached to the control which has a sealed non-magnetic material housing having a downwardly open recess extending thereinto from its lower surface. A normally open microswitch having a spring control arm extending therefrom and movable downwardly to close the switch, while a permanent magnet is positioned on the arm directly above the recess, and a magnetic metal means is slidably positioned in the recess and operatively connects to the weights. The magnetic metal means attracts the permanent magnet when the metal means is at the upper portion of the recess and this closes the switch arm with the position of the metal means in the housing in relation to the magnet being controlled dependent upon the water level in the sump.

REFERENCES:
patent: 2576561 (1951-11-01), Binford
patent: 2887546 (1959-05-01), Hatfield et al.
patent: 3504316 (1970-03-01), Bekedam

Affiliated with

Also associated with

Rating

Sealed level control switch for sump pumps does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-256088