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. 17, 1976
Filed:
Dec. 17, 1974
John W Powlesland, deceased, Woodbridge, CA;
by James Kidd, executor, Woodbridge, CA;
by Isabella Powlesland, executrix, Woodbridge, CA;
Powlesland Engineering Limited, Rexdale, CA;
Abstract
This invention provides a method and apparatus for continuously moving gas from a first to a second location within an enclosed space. The gas is drawn from and exhausted to the exterior of the space. First, the gas is admitted from the exterior to a perforated plenum, and then the gas is moved at a relatively slow-speed out of the plenum toward the first location. The high-speed jet of gas is then originated at the first location within the slow-speed gas flow, and is directed toward the second location. This entrains additional gas from the first location and urges it toward the second. At the second location, the gas moving is exhausted to the exterior.