Temperature activated pressure relief mechanism for...

Details Temperature activated pressure relief mechanism for... Temperature activated pressure relief mechanism for...

2006-10-31

2006-10-31

Cariaso, Alan (Department: 2875)

Illumination

Self powered lamp

Flashlight elements

C362S158000, C362S267000, C429S053000

Reexamination Certificate

active

07128437

ABSTRACT:
A temperature activated pressure relief mechanism for a flashlight or other battery containing device includes a watertight sealed flashlight housing which has an opening which extends from an outer surface to and inner surface of the housing. A metallic eyelet having an eyelet opening and having a cylindrical body sized to fit is placed tightly into the housing opening. A fusible plug of a suitable alloy material placed into said eyelet opening so that when said alloy material reaches the alloy melting point, said material will melt and flow at least partially out of the eyelet opening allowing gas pressure from within the sealed flashlight housing to vent to outside the sealed housing through the eyelet opening.

REFERENCES:
patent: 3007110 (1961-10-01), Rosenstrach
patent: 4237526 (1980-12-01), Wood
patent: 5003440 (1991-03-01), Maglica
patent: 5113326 (1992-05-01), Maglica
patent: 5349507 (1994-09-01), Parker
patent: 5904414 (1999-05-01), Monteleone et al.
patent: 5939217 (1999-08-01), Tamura et al.
patent: 6012824 (2000-01-01), Sharrah et al.
patent: 2003/0041899 (2003-03-01), Frank
Eveready Battery Company., Lithium/FeS2 Application Manual, 2003, pp. 1-12.
Alchemy Castings, lead castings, lead products, lead services, May 26, 2004, pp. 1-4.

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