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:
Nov. 19, 2019
Filed:
Sep. 08, 2016
Applicant:
Apple Inc., Cupertino, CA (US);
Inventor:
Alexander V. Salvatti, Morgan Hill, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 41/12 (2006.01); H01F 5/06 (2006.01); H01F 41/066 (2016.01); F02D 41/00 (2006.01); H01F 7/06 (2006.01); H01F 7/18 (2006.01); H04R 9/04 (2006.01); H04R 31/00 (2006.01); H04R 9/06 (2006.01);
U.S. Cl.
CPC ...
H01F 41/12 (2013.01); F02D 41/00 (2013.01); H01F 5/06 (2013.01); H01F 7/064 (2013.01); H01F 7/1844 (2013.01); H01F 41/066 (2016.01); H04R 9/045 (2013.01); H04R 31/00 (2013.01); H04R 9/06 (2013.01); H04R 2499/11 (2013.01);
Abstract
An audio speaker including a bobbin-less voice coil having epoxy-bound winding layers is disclosed. More particularly, a voice coil may include a first winding layer and a second winding layer coaxially arranged about a central axis. The winding layers may include respective wire turns coiled about the central axis in a longitudinal direction. The winding layers may be bound by an epoxy matrix. For example, the epoxy matrix may be disposed radially between the first winding layer and the second winding layer to bond first wire turns to second wire turns, and to bond the winding layers to a speaker diaphragm.