Ground strap for a motor having a plastic housing

Details Ground strap for a motor having a plastic housing Ground strap for a motor having a plastic housing

2006-01-17

2006-01-17

Schuberg, Darren (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S06800R, C310S089000, C310S090000, C310S043000, C015S412000

Reexamination Certificate

active

06987338

ABSTRACT:
For a motor having a plastic bracket, a single-piece ground strap grounds both the motor's stator and rotor. The ground strap has one end fastened to a bearing retainer of the motor, an opposite end connected to a ground wire, and an intermediate section that is compressed between the stator and the housing. The end connected to the bearing retainer grounds the rotor, and the intermediate section grounds the stator. The ground strap is fastened to the motor using fasteners that already exist in an otherwise identical but ungrounded motor. In some cases, a combination bearing retainer and ground strap is blanked and formed as a unitary piece.

REFERENCES:
patent: 2905267 (1959-09-01), Thompson
patent: 3159354 (1964-12-01), Yartz et al.
patent: 3626225 (1971-12-01), Pauwels
patent: 3875462 (1975-04-01), Kiefer et al.
patent: 4315343 (1982-02-01), Neroda et al.
patent: 4429204 (1984-01-01), McGuire et al.
patent: 4513214 (1985-04-01), Dieringer
patent: 4621991 (1986-11-01), Smith et al.
patent: 4698534 (1987-10-01), Smith et al.
patent: 4798984 (1989-01-01), Suzuki et al.
patent: 5313129 (1994-05-01), Stewart
patent: 6158083 (2000-12-01), Holsten

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