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. 23, 1983
Filed:
Dec. 16, 1980
Applicant:
Inventor:
Raymond H Dean, Johnson County, KS (US);
Assignee:
Tempmaster Corporation, Kansas City, MO (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24F / ;
U.S. Cl.
CPC ...
98 4 / ; 98DI / ; 251-5 ; 251 611 ;
Abstract
A distribution duct for conditioned air has elongate outlet slots which are opened and closed by a sound absorbing foam pad controlled by inflatable air bladders. The duct walls adjacent the slots are generally parallel to the face of the pad to create thin air flow channels which effect attenuation of noise when the pad is fully or partially open. When the bladders are fully inflated, they press the pad into the slots and into tight sealing contact with the slot edges.
Dean, Raymond. (1983). Noise attenuating apparatus for modulating air flow (U.S. Patent No. 4399739). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4399739
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile