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:
Nov. 22, 2005
Filed:
Jan. 07, 2004
Dean L. Kamen, Bedford, NH (US);
Thomas Q. Gurski, Goffstown, NH (US);
Christopher C. Langenfeld, Nashua, NH (US);
Ryan Keith Larocque, Pepperell, MA (US);
Michael Norris, Manchester, NH (US);
Kingston Owens, Bedford, NH (US);
Jonathan Strimling, Bedford, NH (US);
Dean L. Kamen, Bedford, NH (US);
Thomas Q. Gurski, Goffstown, NH (US);
Christopher C. Langenfeld, Nashua, NH (US);
Ryan Keith LaRocque, Pepperell, MA (US);
Michael Norris, Manchester, NH (US);
Kingston Owens, Bedford, NH (US);
Jonathan Strimling, Bedford, NH (US);
New Power Conceps LLC, Manchester, NH (US);
Abstract
A thermal cycle engine having a heat exchanger for transferring thermal energy across the heater head from a heated external fluid to the working fluid. The heat exchanger has a set of heat transfer pins each having an axis directed away from the cylindrical wall of the expansion cylinder. The height and density of the heat transfer pins may vary with distance in the direction of the flow path, and the pin structure may be fabricated by stacking perforated rings in contact with a heater head. Ribs are provided interior to the heater head to enhance hoop strength and thermal transfer.