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:
Feb. 19, 1991
Filed:
Mar. 29, 1989
Richard E Niggemann, Rockford, IL (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
A laminated spiral heat exchanger (10) in accordance with the invention includes a heat conductive top laminate (30); a heat conductive bottom laminate (36), at least one spiral heat conductive laminate (42), the laminates being joined together to form a heat exchanger core; at least one spiral channel (18) disposed within at least one spiral laminate; a first fluid port (20) coupled to each spiral channel at a first radius with respect to a center of the spiral heat exchanger; and a second fluid port (24) coupled to each spiral channel at a second radius with respect to the center point of the spiral heat exchanger which is greater than the first radius.