Fluid handling – Systems – Flow path with serial valves and/or closures
Reexamination Certificate
2008-05-13
2008-05-13
Lee, Kevin (Department: 3753)
Fluid handling
Systems
Flow path with serial valves and/or closures
C137S614180
Reexamination Certificate
active
07370670
ABSTRACT:
A pressure relief valve for use on a dampener of a motorcycle suspension system is disclosed. The pressure relief valve includes a hollow body having an aperture that extends through the body, a valve cap that includes a recessed area with an entrance of a first diameter and a mid-portion of a second diameter, the second diameter being larger than the first diameter. Attached to the valve cap is a connecting shaft that is surrounded by a spring that urges the valve cap together with the connecting shaft from a second position where a pair of seals are formed, one a seal is formed between the valve cap and the hollow body and the other seal between the connecting shaft and the aperture in the hollow body, and to a first position where both seals are opened, so that when the valve cap is in the first position the enlarged portion of the connecting shaft creates a flow-path into the aperture through the hollow body.
REFERENCES:
patent: 3984119 (1976-10-01), Okazima
patent: 4687022 (1987-08-01), Iverson
patent: 5301973 (1994-04-01), Truchinski
patent: 5634653 (1997-06-01), Browning
patent: 7017893 (2006-03-01), Vincenzo
patent: 7163222 (2007-01-01), Becker et al.
Crabtree Edwin H.
Lee Kevin
Pizarro Ramon L.
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