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:
Dec. 25, 1979
Filed:
Aug. 24, 1978
Applicant:
Inventor:
Paul B Spranger, Fullerton, CA (US);
Assignee:
Altec Corporation, Anaheim, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R / ; H04R / ;
U.S. Cl.
CPC ...
1791 / ; 29594 ;
Abstract
Apparatus and method for precisely adjusting the spacing between the phasing plug of a horn type loudspeaker driver and the diaphragm of such loudspeaker. The base of the pole piece is threaded and threadably engages a mating apertured portion of a back plate. A micrometer is employed to adjust the height of the phasing plug above the surface of the top back plate by rotating the phasing plug on its threads. In this manner, spacing between the phasing plug and the diaphragm can be precisely set for each assembly.