Switch for a variable-speed induction motor

Details Switch for a variable-speed induction motor Switch for a variable-speed induction motor

2005-09-20

2005-09-20

Fletcher, Marlon T. (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S773000, C318S779000, C318S727000, C318S700000, C318S800000, C318S807000

Reexamination Certificate

active

06946815

ABSTRACT:
A switch for a variable-speed induction motor includes conductive connecting pieces, a rotary member, and a driving unit. The connecting pieces are mounted in a housing, are adapted to be connected to the induction motor, and have distal contact parts that surround an axis of the housing. The distal contact parts of any two of the connecting pieces form either an angular or height difference therebetween with respect to the axis. The rotary member is rotatable about the axis inside the housing, and is formed with contacting regions that are arranged along the axis and that are in sliding contact with the distal contact parts. The driving unit is operable so as to drive rotation of the rotary member about the axis such that the connecting pieces are bridged selectively and electrically by the contacting regions of the rotary member for varying the speed of the induction motor.

REFERENCES:
patent: 1772719 (1930-08-01), Johnson
patent: 1828943 (1931-10-01), Rossman
patent: 2881338 (1959-04-01), Banning
patent: 4019104 (1977-04-01), Parker
patent: 4841188 (1989-06-01), Hao
patent: 4945296 (1990-07-01), Satake
patent: 6355997 (2002-03-01), Hao
patent: 6639338 (2003-10-01), Haner
patent: 01-099494 (1989-04-01), None

Affiliated with

Also associated with

Rating

Switch for a variable-speed induction 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 Switch for a variable-speed induction motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switch for a variable-speed induction motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3444111