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:
Jun. 03, 2003
Filed:
Oct. 08, 2001
Charles R. Stallard, Kemp, TX (US);
Raytheon Company, Lexington, MA (US);
Abstract
An athermalization compensation device ( ) includes a frustoconical outer ring ( ), with opposite edge portions ( ) offset radially and axially, and with a relatively low coefficient of thermal expansion. An inner ring ( ) has a relatively high coefficient of thermal expansion. In response to a temperature change, the inner ring exerts on the radially inner edge of the outer ring a force which flexes the outer ring so that the inner edge moves radially and axially in relation to the outer edge, in a manner which changes an axial dimension of the device. In an alternative embodiment, the outer ring has circumferentially spaced slots ( ) extending into it from its radially inner edge, and the inner ring has a respective portion ( ) disposed in each slot.