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.:

US 7541531 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 02, 2009

Filed:

Aug. 28, 2006
Applicant:

Lucas A. Jacobson, Crystal, MN (US);

Inventor:

Lucas A. Jacobson, Crystal, MN (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10D 13/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A spring return for a bass drum pedal includes a spring with ears at opposing ends, one ear connected to the pedal frame and the other ear connected to a pivot arm attached to the pedal driveshaft. The pivot arm includes a hub mounted on the driveshaft and a shaft extending radially therefrom. A collar is journaled on the shaft and includes a setscrew to permit selectively locking of the collar at desired locations along the shaft. A pin mounted on the collar has an aperture for receiving one ear of the spring, thereby permitting selective adjustment of the distance between the spring ear and the driveshaft, to thereby adjust the ratio of driveshaft rotation to spring pressure.


Find Patent Forward Citations

Jacobson, Lucas. (2009). Adjustable spring return for bass drum pedal (U.S. Patent No. 7541531). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7541531

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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