Radio-frequency interference suppressing system for permanent magnet field motor
AssigneeStackpole Limited
InventorEdward J. Zelt
Life of this patent
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Abstract
A radio-frequency interference suppressing system for inside a permanent magnet field motor case includes a pair of commutator brushes, a pair of power input terminals electrically connected with the brushes, a capacitor electrically connected across the terminals, a pair of capacitors each electrically connected to a different one of the two terminals, and a grounding member electrically connected with the pair of capacitors for engaging the inside of the motor case.
Claims4
A radio-frequency interference suppressing system for inside a permanent magnet field motor case, comprising a pair of commutator brushes, a pair of power input terminals electrically connected with said brushes, a capacitor electrically connected across the terminals, a pair of capacitors each electrically connected to a different one of said terminals, and a resilient metal grounding strip electrically connected with said pair of capacitors for pressing against the inside of the motor case, an insulating member provided with laterally spaced openings receiving the inner ends of said terminals and supported thereby, one end of said grounding strip being rigidly attached to said insulating member, and said strip extending from the insulating member in the same general direction as said terminals.
Dependencies are inferred from the claim text.