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US 4,782,733 AGranted
Double drum beater
OwnerMichael H. Herringinventor
Life of this patent
Estimating the term…
Abstract
Two beaters are so coupled to a foot pedal that they oscillate independently out of phase with each other, one beater being a primary beater and pivotal movement thereof being achieved by depressing a foot pedal, the other beater being a secondary beater, and pivotal movement of the secondary beater being effected by means of a return spring coupled to the foot pedal.
Claims8
A double drum beater comprising
- a base frame, a post upstanding from the base frame near a first end thereof, a foot pedal overlying the base frame, pivot means joining an end of the foot pedal to the base frame near a second end thereof for pivotal movement about a transverse axis,
- a transverse pivot bar carried by the post, a pair of spaced beater arms carried by the pivot bar for oscillatory movement about the transverse axis thereof, beater balls on respective said beater arms,
- coupling means coupling the foot pedal to the beater arms in such a way that they oscillate at the same frequency but out of phase with each other upon depression of the foot pedal,
- and a return spring co-operable between the beater arms and the base frame to effect reverse oscillation upon release of the foot pedal, such that a foot pedal depression drives one beater ball in a drum beating direction and the return spring drives the other beater in that direction upon release of the foot pedal.
1 more element
Dependencies are inferred from the claim text.