Thermal relief vent and method of manufacturing the same

Details Thermal relief vent and method of manufacturing the same Thermal relief vent and method of manufacturing the same

2006-01-13

2009-08-04

Lee, Kevin L (Department: 3753)

Fluid handling

Processes

Cleaning, repairing, or assembling

C137S072000, C137S039000, C137S073000, C137S080000, C137S202000

Reexamination Certificate

active

07568493

ABSTRACT:
An improved thermal relief vent for a fuel tank, and a method of manufacturing the same, includes a thermal relief ring that is used to create a mechanical seal within the vent. The thermal relief ring, at room temperature, is crimped in place by use of the vent cap itself. The crimped thermal relief ring creates a mechanical seal between the vent and the vent cap, up until a predetermined thermal relief point, at which time the thermal relief ring will soften and/or yield and release the vent cap from the vent body.

REFERENCES:
patent: 3737966 (1973-06-01), Ranz
patent: 4325398 (1982-04-01), Green
patent: 4487215 (1984-12-01), Green
patent: 5240027 (1993-08-01), Vertanen
patent: 6814097 (2004-11-01), Girouard

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