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:
Apr. 06, 1999
Filed:
Dec. 17, 1997
Applicant:
Inventor:
William P Patrick, Glastonbury, CT (US);
Assignee:
United Technologies Corporation, Hartford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
181286 ; 181290 ;
Abstract
The sound attenuating device of the present invention is a bulk layer connected to a support member which forms a plurality of Helmholtz resonators. This invention is particularly useful in a vehicle where the bulk layer attenuates high frequency noise, i.e. above about 1000 Hz, while the resonators can be tuned across the device to absorb at different lower frequencies in different areas of the device.