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. 28, 2000
Filed:
Apr. 02, 1998
Richard A Olzak, Kirkland, WA (US);
Gary Kersten, Duval, WA (US);
AlliedSignal Inc., Morristown, NJ (US);
Abstract
A crash-survivable enclosure (10) for protecting a data memory unit (45) used in vehicles has a shell (15) with an inner surface (22). The shell (15) defines an interior cavity (26) which contains the data memory unit (45). The enclosure (10) has a heat absorption composition (20) which lines a portion of the inner surface (22) and substantially surrounds the data memory unit (45). The composition is capable of exhibiting an endothermic phase transition when subjected to a high temperature environment. The phase transition is typically from a solid phase to a non-solid, flowable phase. The shell can also have a plurality of vents (42). The vents (42) are sized and positioned to permit the heat absorption material (20) to drain from the shell when in the non-solid, flowable phase. The vents (42) can be positioned such that the flowable heat absorption material will drain regardless of the orientation of the shell (15).