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. 31, 1981
Filed:
Apr. 07, 1978
Clifford R Perry, Renton, WA (US);
Lloyd H Dietz, Seattle, WA (US);
The Boeing Company, Seattle, WA (US);
Abstract
A plurality of horizontally positioned plates stacked on top of one another, with thin film plastic sheets separating each adjacent pair of plates. Each plate is formed with a substantially identical, horizontally extending, vertically through passageway, with the sheets separating the passageways of each plate. Upper and lower pressure plates, provided with pressurized air bags, maintain uniform pressure across the plates to prevent leakage from the passageways. Manifold devices at opposite ends of the passageways direct a first heat exchange medium through a first set of vertically alternate passageways, and direct a second heat exchange medium through a second set of vertically alternate passageways positioned intermittently with respect to the first set of passageways.