Title:
ELECTRIC MOTOR HAVING CONVEX HIGH-SPEED BRUSH
Document Type and Number:
WIPO Patent Application WO2006049642
Kind Code:
A3
Abstract:
A two speed direct current electric motor comprising: an armature having a commutator assembly that is adapted to receive an electromotive force to cause the armature to operatively rotate. A brush assembly having a common brush and a low-speed brush is disposed about and in electrical communication with the commutator to provide a first electromotive force to cause the armature to provide a low-speed rotational output. The brush assembly further includes a high-speed brush having a convex shaped end in physical and electrical communication with the commutator to provide a second electromotive force to cause the armature to provide a high-speed rotational output. The convex shaped end of the high-speed brush is further adapted to wear to take the shape of the commutator such that as the high-speed brush wears the high-speed rotational output decreases.
Inventors:
SUMINSKI DAVID (US)
Application Number:
PCT/US2005/010074
Publication Date:
July 20, 2006
Filing Date:
March 25, 2005
Export Citation:
Assignee:
TRICO PRODUCTS CORP (US)
International Classes:
H02K13/00; H02K23/20; H01R39/41
Foreign References:
| US5594290A | 1997-01-14 | |||
| US5691585A | 1997-11-25 |
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