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:
Oct. 26, 1976
Filed:
Feb. 21, 1975
Birger Larkfeldt, Odensjo-Barnarp, SW;
Lennart Widerby, Jonkoping, SW;
Aktiebolaget Svenska Flaktfabriken, Nacka, SW;
Abstract
A low-noise nozzle system for receiving an air flow from a relatively low-velocity, high-volume air source and for producing therefrom a high-velocity, low-volume jet of air for delivery into a room to control the distribution of air in the room. The nozzle inner walls first extend along a straight axis into the room, then bend gradually at right angles to feed an outlet aperture which injects the jet into the room at right angles to the axis. The aperture is in a plane parallel to said straight axis and elongated at right angles to said axis; low-noise delivery of the jet into the room is accomplished by special proportioning of the radii of the nozzle inner walls at the bend in relation to the size of the inlet to the nozzle, and of the size of the outlet aperture relative to the size of said nozzle inlet.