Insulating member for carbon brush holder

Details Insulating member for carbon brush holder Insulating member for carbon brush holder

2005-07-12

2005-07-12

Waks, Joseph (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S245000

Reexamination Certificate

active

06917135

ABSTRACT:
An insulating member for a carbon brush holder includes a main body and a cover member. The main body includes a through hole, which has an internal thread formed around its periphery. The internal thread is provided with a spiral internal thread tooth serially formed thereon. The internal thread tooth has a first internal tooth bevel and a second internal tooth bevel. The first internal tooth bevel has a larger distance between a peak and a bottom of the internal thread tooth than that of the second internal tooth bevel. The second internal tooth bevel has a first convexity abutting the first internal tooth bevel. The cover member has an external thread formed around a periphery thereof for threadedly fitted into the internal thread of the main body. Accordingly, the cover member can be tightly threadedly fitted with the main body.

REFERENCES:
patent: 2695968 (1954-11-01), Welch et al.
patent: 3376444 (1968-04-01), Eaton, Jr. et al.
patent: 3387156 (1968-06-01), Elow et al.
patent: 4375040 (1983-02-01), Sauerwein
patent: 5463264 (1995-10-01), Koenitzer
patent: 5621262 (1997-04-01), Han
patent: 6731042 (2004-05-01), Bank et al.

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