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:
Jun. 17, 2025
Filed:
May. 17, 2023
Applicant:
Clean Energy Labs, Llc, Austin, TX (US);
Inventors:
Joseph F. Pinkerton, Austin, TX (US);
James A. Andrews, Austin, TX (US);
David A. Badger, Lago Vista, TX (US);
Assignee:
Brane Audio, LLC, Austin, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H04R 11/14 (2006.01); H04R 1/22 (2006.01); H04R 1/28 (2006.01); H04R 9/02 (2006.01); H04R 11/02 (2006.01); H04R 29/00 (2006.01);
U.S. Cl.
CPC ...
H04R 11/14 (2013.01); H04R 1/2811 (2013.01); H04R 11/02 (2013.01); H04R 29/001 (2013.01);
Abstract
Electroacoustic drivers that can be utilized in loudspeaker systems that utilize drivers having a magnetic negative spring (MNS). The magnets of the MNS can be arranged for radial stability and/or to provide for linear magnetic forces. A variable reluctance device can be used to vary the resonant frequency of electroacoustic driver in response to a feedback signal.