The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 2013
Filed:
Feb. 01, 2011
Applicants:
Thomas Groerzinger, Gehrden, DE;
Roy Diers, Burgwedel, DE;
Patrick Oelkers, Springe, DE;
Inventors:
Assignee:
Nass Magnet GmbH, Hannover, DE;
Primary Examiner:
Int. Cl.
CPC ...
G10D 13/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The foot machine according to the invention for a bass drum of a drum kit basically comprises a shaft mounted rotatably in a frame, a beater supported on the shaft, and a pedal connected to the beater, operation of the pedal bringing about an excursion of the beater. Also provided are permanent magnet restoring means which bring the displaced beater back into a resting position and which are formed by at least one inner and at least one outer permanent magnet arrangement arranged concentrically around the shaft.