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:
Apr. 18, 1989
Filed:
Jan. 29, 1988
Applicant:
Inventor:
Jerry D Palmer, Corinth, MS (US);
Assignee:
Alcatel Business Systems, Corinth, MS (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
379373 ; 340397 ; 340392 ;
Abstract
A magnetically controlled steel ball armature functions as a clapper to strike a gong. A positionally adjustable permanent magnet polarizes the ball and positions it relative to the gong. An electromagnet modulates the magnetic field of the permanent magnet to drive the ball strikingly against the gong. Bell tap is suppressed by adjusting the position of the permanent magnet relative to the gong.