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. 24, 2010
Filed:
Oct. 28, 2004
Applicant:
Engbert Wilmink, Delft, NL;
Inventor:
Engbert Wilmink, Delft, NL;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 11/06 (2006.01); H04R 1/10 (2006.01); H04R 25/00 (2006.01); H04R 25/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Earplug comprising a plug member for blocking a man's ear canal, said plug member comprising at least one acoustic channel for channeling incoming acoustic energy to said man's ear. According to the invention, a detector for detecting an acoustic energy level or for detecting a control signal that is indicative for an acoustic energy level to be received, an acoustic valve positioned in said channel, and a control unit that, in response to said detector, controls said valve so as to attenuate the acoustic energy channeled through said acoustic channel.