Self-adhesive purge dam for retaining purge gas around a...

Details Self-adhesive purge dam for retaining purge gas around a... Self-adhesive purge dam for retaining purge gas around a...

2006-09-26

2006-09-26

Ahmad, Nasser (Department: 1772)

Stock material or miscellaneous articles

Layer or component removable to expose adhesive

C138S089000, C138S094000, C219S061000, C219S074000, C228S042000, C228S049300, C228S219000, C428S041700, C428S041800, C428S042200, C428S043000, C428S119000, C428S192000, C428S194000

Reexamination Certificate

active

07112358

ABSTRACT:
A self-adhesive purge dam for retaining purge gas around a weld zone includes a base configured to substantially obstruct an air passage leading to the weld zone and an adhesive skirt extending from the base and configured to engage portions of the air passage. An adhesive on the adhesive skirt allows the skirt to be adhered to the air passage. An optional removable backing covers the adhesive prior to installation. The purge dam is installed by peeling the removable backing (if present) and exposing the adhesive for adhesion.

REFERENCES:
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patent: 2004/0022676 (2004-02-01), Hamilton et al.
patent: 2005/0072809 (2005-04-01), Pantelleria et al.
AB Paper Co., Shur-Purge, Jan. 1, 1997, 5 pages.
Intercon, Water-Soluble Purge Paper, Oct. 1, 2002, 5 pages.
Gilbreth, Dissolvo, 2001, 8 pages.

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