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:
Aug. 01, 2017
Filed:
Mar. 27, 2014
Applicant:
Infrafone Ab, Sundbyberg, SE;
Inventors:
Martin Ellebro, Skogstorp, SE;
Mats Olsson, Lidingö, SE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B06B 1/20 (2006.01); B06B 1/18 (2006.01); G10K 11/04 (2006.01); F16F 15/02 (2006.01); F28G 7/00 (2006.01);
U.S. Cl.
CPC ...
B06B 1/20 (2013.01); B06B 1/18 (2013.01); F16F 15/02 (2013.01); F28G 7/00 (2013.01); G10K 11/04 (2013.01);
Abstract
The invention relates to a vibration damper () configured to be provided on a low frequency sound generator, which comprises a feeder unit () with a positive feedback system regulated by a reciprocating spring loaded piston () and a resonator tube (). The vibration damper () may be positioned outside the resonator tube (). The vibration damper () comprises a first flange () connected to the resonator tube (), a number of springs (), a second flange () and a number of weights ().