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:
Feb. 14, 1989
Filed:
Nov. 13, 1987
Applicant:
Inventor:
Gary Minker, Royal Palm Beach, FL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10D / ;
U.S. Cl.
CPC ...
8442 / ; 8442 / ;
Abstract
A drum engaging device having a hollow interior and a freely movable body enclosed therein for imparting resonant frequency high sound pressure level with longer (extended) compression domain of member first engagement to the membrane of a drum by varying the weight of the body and varying the time of engagement of the body after the device has engaged the membrane.