Electric motor brush card

Claim 2

A brush holder for an electric motor adapted to be mounted on a dielectric support comprising a U-shaped body having a longitudinal axis, a base region, a pair of substantially parallel leg regions, an inner end edge, an outer end edge and supporting lateral edges defining the end of said leg regions in a circumferential direction, a conductor receiving slot defined in said base region intersecting said outer edge, identical elongated spring receiving slots defined in each of said leg regions intersecting said outer edge, tension coil spring anchor means defined on each of said leg regions adjacent said inner edge and in alignment with the spring receiving slot defined on the associated leg region, and mounting means defined on said leg regions extending from said lateral edges.

Claim 3

In a brush holder as in claim 1 wherein said spring anchor means comprises a tab lanced from each leg region adjacent said leg region''s inner edge.

Claim 4

In a brush holder as in claim 1, a tension coil spring having ends each attached to a spring anchor means, said spring adapted to extend over said body outer end edge in alignment with siad spring receiving slots.

Claim 5

A brush holder for electric motors comprising, in combination, a planar card of dielectric material having a central armature receiving opening defined therein having an axis, a plurality of brush holders mounted on said card adjacent said opening and concentrically arranged relative to said axis, said brush holders each comprising a metal U-shaped body having a longitudinal axis, a base region, a pair of substantially parallel leg regions, an inner end edge, an outer end edge and supporting lateral edges defining the end of said leg regions in a circumferential direction, a conductor receiving slot defined in said base region intersecting said outer edge, a spring receiving slot defined in each of said leg regions intersecting said outer edge, spring anchor means defined on said leg regions adjacent said inner edge, a deformable mounting projection extending from each of said leg region lateral edges extending through said card, an electrical brush slidably mounted in each brush holder body, a tension spring mounted on each body having an end attached to each leg region by said anchor means and extending over said outer edge and in alignment with said spring receiving slots, said springs engaging the associated brush biasing said brush toward said axis, and a conductor attached to each brush extending through said conductor receiving slot.

Claim 6

A brush holder for electric motors comprising, in combination, a planar card of dielectric material having a central armature receiving opening defined therein having an axis, a plurality of brush holders mounted on said card adjacent said opening and concentrically arranged relative to said axis, said brush holders each comprising a metal U-shaped body having a longitudinal axis, a base region, a pair of substantially parallel leg regions, an inner end edge, an outer end edge and supporting lateral edges defining the end of said leg regions in a circumferential direction, a conductor receiving slot defined in said base region intersecting said outer edge, a spring receiving slot defined in each of said leg regions intersecting said outer edge, spring anchor means defined on said leg regions adjacent said inner edge, a deformable mounting projection extending from each of said leg region lateral edges extending through said card, an electrical brush slidably mounted in each brush holder body, a tension spring mounted on each body having an end attached to each leg region by said anchor means and extending over said outer edge and in alignment with said spring receiving slots, said springs engaging the associated brush biasing said brush toward said axis, and a conductor attached to each brush extending through said conductor receiving slot.

Claim 7

In a brush holder as in claim 4 wherein said spring anchor means comprises a tab lanced from each leg region adjacent said leg region''s inner edge.

Claim 8

In a brush holder as in claim 4 wherein said conductor and spring receiving slots are substantially parallel to said body axis.

Claim 9

In a brush holder as in claim 4 wherein a plurality of openings are defined in said card concentric to said central opening axis, said mounting projections being received within said openings.

Claim 10

In a brush holder as in claim 4 wherein at least one brush terminal is mounted on said card.

Claim 11

A brush holder for an electric motor adapted to be Mounted on a dielectric support comprising a U-shaped body having a longitudinal axis, a base region, a pair of substantially parallel leg regions, an inner end edge, an outer end edge and supporting lateral edges defining the end of said leg regions in a circumferential direction, a spring receiving slot defined in each of said leg regions intersecting said outer edge, spring anchor means defined on said leg regions adjacent said inner edge, a brush slidably received within said body having an outer end disposed toward said outer edge, a flexible tension coil spring tensioned over said brush outer end in engagement therewith and in alignment with said spring receiving slots biasing said brush toward said inner edge, said spring having ends attached to said spring anchor means, and mounting means defined on said leg regions extending from said lateral edges.

Claim 12

A brush holder for an electric motor adapted to be Mounted on a dielectric support comprising a U-shaped body having a longitudinal axis, a base region, a pair of substantially parallel leg regions, an inner end edge, an outer end edge and supporting lateral edges defining the end of said leg regions in a circumferential direction, a spring receiving slot defined in each of said leg regions intersecting said outer edge, spring anchor means defined on said leg regions adjacent said inner edge, a brush slidably received within said body having an outer end disposed toward said outer edge, a flexible tension coil spring tensioned over said brush outer end in engagement therewith and in alignment with said spring receiving slots biasing said brush toward said inner edge, said spring having ends attached to said spring anchor means, and mounting means defined on said leg regions extending from said lateral edges.