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. 10, 2019
Filed:
Dec. 14, 2016
Applicants:
Martin Audio Limited, High Wycombe, Buckinghamshire, GB;
Jason Baird, London, GB;
Philip Anthony, Marlow, Buckinghamshire, GB;
Inventors:
Jason Baird, London, GB;
Philip Anthony, Marlow, GB;
Assignee:
Martin Audio Limited, Buckinghamshire, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/24 (2006.01); H04R 1/26 (2006.01); H04R 1/30 (2006.01); H04R 9/06 (2006.01);
U.S. Cl.
CPC ...
H04R 1/24 (2013.01); H04R 1/26 (2013.01); H04R 1/30 (2013.01); H04R 9/06 (2013.01);
Abstract
A coaxial loudspeaker apparatus () comprising: a first unit, being arranged to propagate sound in a first frequency range; a second unit, being arranged to propagate sound in a second frequency range that is higher than the first frequency range, comprising a first waveguide (); a second waveguide () arranged to extend substantially in prolongation of the first waveguide (); and a third waveguide () arranged to extend substantially in prolongation of the second waveguide ().