Single throw pump switch

Details Single throw pump switch Single throw pump switch

1999-02-11

1999-12-07

Friedhofer, Michael

Electricity: circuit makers and breakers

Snap

Double snap

200408, H01H 506

Patent

active

059987499

ABSTRACT:
A single pole, snap action, sump pump switch is disclosed having a housing containing a single electrically conductive contact arm with a contact mounted on a forward end portion, which arm is pivotally movable between on and off positions. The contact arm contains a pair of pivot tabs projecting from opposite sides on a rear end portion thereof, which pivot tabs fit within rearwardly opening, triangularly shaped notches on a U-shaped terminal. The notches form a fulcrum about which the contact arm rocks through the U-shaped member when switching between the on and off positions. An actuator arm is pivotally mounted between a pair of shoulders formed on opposing sidewalls within the housing and projects out of a rear end of the housing for connection to a float bulb assembly. A forward end of the actuator arm fits within a recess in one end of a pivot bushing. The other end of the bushing is open to receive one end of a coiled spring therein, the other end being compressed against a rear edge of the contact arm surrounding a centering tab. The actuator arm, bushing and spring combination, directly actuates the contact arm near the fulcrum, thus, providing a relatively long lever arm between the fulcrum and the contact to produce strong forces for moving the contact.

REFERENCES:
patent: 2255115 (1941-09-01), Helle
patent: 2262397 (1941-11-01), Immel et al.
patent: 2291019 (1942-07-01), Biermann et al.
patent: 3365556 (1968-01-01), Flanagan
patent: 4230919 (1980-10-01), Schantz et al.

Affiliated with

Also associated with

Rating

Single throw pump 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 Single throw pump switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single throw pump switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-826330