Auxiliary winding cut-out switch for sump pump motor

Details Auxiliary winding cut-out switch for sump pump motor Auxiliary winding cut-out switch for sump pump motor

1988-06-29

1990-01-16

Pellinen, A. D.

Electricity: circuit makers and breakers

Centrifugal

Liquid contact

310 68E, 318793, H01H 3510

Patent

active

048944963

ABSTRACT:
An auxiliary winding cut-out switch for a sump pump motor having main windings and auxiliary windings. Controlled deflection means for positioning a contact carried on a terminal movable arm with respect to a fixed contact comprises a plunger, actuator, removable coil compression return spring and removable coil compression take-up spring, all concentric and colinear. The plunger slides in housing guide means and has a follower portion for following contact with a control surface carried on the motor rotor and axially movable responsive to rotor speed. The actuator slides in the housing guide means and has an offset coupler engaging the terminal movable arm. The take-up spring is seated between plunger and actuator; the return spring is seated between housing cover and actuator. The springs are electrically unconnected to the terminals.
The spring rates and dimensions are effective positively to position the actuator such that the contacts are held closed at motor speeds less than a predetermined speed, and positively to open the contacts when the motor attains the predetermined speed.
A combined main on/off switch and start winding cut-out switch is provided in a single housing, using three identical pairs of terminals.

REFERENCES:
patent: 3293388 (1966-12-01), Slonneger
patent: 3381197 (1968-04-01), Waters et al.
patent: 3691415 (1972-09-01), Hancock et al.
patent: 3790730 (1974-02-01), Hildebrandt et al.
patent: 4262225 (1981-04-01), Hildebrandt et al.
patent: 4284864 (1981-08-01), Crow et al.
patent: 4504710 (1985-03-01), Bryant et al.

Affiliated with

Also associated with

Rating

Auxiliary winding cut-out switch for sump pump motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Auxiliary winding cut-out switch for sump pump motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Auxiliary winding cut-out switch for sump pump motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1336022