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:
Mar. 30, 1976
Filed:
Apr. 22, 1974
Applicant:
Inventor:
Birger Larkfeldt, Odensjo-Barnarp, SW;
Assignee:
Aktiebolaget Svenska Flaktfabriken, Nacka, SW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24F / ; F24F / ;
U.S. Cl.
CPC ...
98 3 / ; 98 4 / ; 98103 ;
Abstract
The throwing length of a stream of air entering a room through a large-area ventilator outlet is controllably increased by including within the aperture of the ventilator at least one air nozzle of adjustable direction and orifice cross-section and supplied with air under sufficiently high pressure to produce a high-velocity low-volume air jet directed into the room along the general direction of the main air stream.