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:
Sep. 27, 1983
Filed:
Jan. 25, 1982
Seymour Edelman, Silver Spring, MD (US);
Other;
Abstract
Apparatus is disclosed for providing increased heat transfer efficiency in a heat exchanger by separating contiguous fluid conductive channels by means of a flexible partition of a bimorph construction consisting of two adjacent layers of piezoelectric material arranged so that, when an electrical signal is applied, one layer expands while the other contracts causing the composite sheet to flex and push a sub-laminar layer of the fluid located adjacent to the sheet away into the turbulent stream while drawing other fluid into contact with the partition. The preferred embodiment of the invention additionally includes a grid or mesh member between the two layers for strengthening the partition so that it can withstand a relatively large pressure gradient thereacross.