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. 26, 2003
Filed:
Sep. 04, 2002
Patrick K. Richard, Baltimore, MD (US);
Brian T. Drude, Arbutus, MD (US);
Hurley K. Blackwell, Baltimore, MD (US);
Lucinda G. Martin, Millersville, MD (US);
H. Halley Lisle, Monrovia, MD (US);
David A. Herlihy, Ellicott City, MD (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
A miniature, self-locking, spring action, microwave T/R module retainer device includes a retainer body that holds a double arched spring and transfers the spring load to a coldplate. The double arched spring configuration is designed to contact an extended heat sink plate located on one side of the microwave T/R module. When in position, the deflection of the double arched spring of the retainer device imparts a force onto the extended heat sink, pressing the T/R module against the coldplate when the module retainer device is installed. If the position of the T/R module changes due to thermal or mechanical loads, the potential energy stored in the arched spring allows the spring to automatically re-adjust accordingly.