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. 15, 1998
Filed:
Oct. 03, 1997
Thomas Richard Zelinka, Vancouver, CA;
Sonigistix Corporation, Vancouver, CA;
Abstract
A diaphragm mounting system for flat acoustic planar magnetic and electrostatic transducers which incorporates opposing frame sections, each of which defines a clamping or peripheral surface area and an internal or central area through which acoustic waves may pass from the diaphragm. The diaphragm is first placed on one frame section with zero plus tension. The second frame section includes a protruding ridge extending substantially along an inner edge of the central area which ridge defines a border for a sound producing area of the diaphragm. During assembly of the two frame sections, the ridge engages the diaphragm to place predetermined tension on the diaphragm as the sections are joined. In one embodiment, the profile of the ridge is shaped to provide predetermined biaxial tension in a diaphragm of generally rectangular shape.