Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1982-05-26
1983-12-13
Skudy, R.
Electrical generator or motor structure
Dynamoelectric
Rotary
310245, H02K 1300
Patent
active
044207050
ABSTRACT:
A brush wear indicator contact and terminal assembly having a high pressure-per-unit contactor that is formed on a first surface of the plate. A conductor for a brush wear indicator circuit is bonded to the contact plate by a high temperature resistant solder or brazing material and the contact plate is bonded to the surface of the dielectric sheet, which electrically isolates the contact from the spring when the spring is in an extended condition. By the method of the invention, a brush wear indicator contact and terminal assembly is made by adhering a sheet of dielectric material to a brush follower spring with a coating of permanently flexible adhesive, and by bonding a conductor for a brush wear indicator circuit to a contact plate having a contactor ridge on one opposite surface thereof. The contact plate is then bonded to the surface of the dielectric sheet that faces away from the brush follower spring, to arrange the contactor ridge so it makes high pressure-per-unit engagement with a coiled portion of the brush follower spring, thereby to complete a brush wear indicating signal circuit responsive to the occurrence of a predetermined degree of brush wear.
REFERENCES:
patent: 3526797 (1970-09-01), Jueschke
patent: 4172988 (1979-10-01), Lowther
patent: 4272695 (1981-06-01), Buchwald et al.
patent: 4329683 (1982-06-01), Kimberlin
patent: 4344009 (1982-08-01), Reynolds
patent: 4348608 (1982-09-01), Michael
patent: 4355254 (1982-10-01), Oki et al.
Freedman I. M.
General Electric Company
Myles V. P.
Skudy R.
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