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:
Jul. 02, 2019
Filed:
Nov. 01, 2018
Martin Brokner Christiansen, Laurel, MD (US);
Leonard George Chorosinski, Ellicott City, MD (US);
H. Craig Heffner, Ellicott City, MD (US);
Stanley Katsuyoshi Wakamiya, Ellicott City, MD (US);
Martin Brokner Christiansen, Laurel, MD (US);
Leonard George Chorosinski, Ellicott City, MD (US);
H. Craig Heffner, Ellicott City, MD (US);
Stanley Katsuyoshi Wakamiya, Ellicott City, MD (US);
NORTHROP GRUMMAN SYSTEMS CORPORATION, Falls Church, VA (US);
Abstract
A method of maintaining a circuit card in a card rack and a circuit card rack system are disclosed. A card rack including a laterally oriented clamping slot is provided. The clamping slot is at least partially formed from a temperature-contractible material. A circuit card having a clamped side region is provided. At least a portion of the clamped side region is inserted into the clamping slot. A predetermined temperature differential is applied to the clamping slot to reduce a longitudinal dimension of at least a portion of the clamping slot. A compressive force is exerted on the portion of the clamped side region which is located longitudinally within the clamping slot, via thermal expansion of the clamping slot.