Safety relief fill valve assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 26, 2013
Grant Date -
Nov 11, 2010
app pub date -
May 7, 2010
filing date -
May 8, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A safety relief fill valve adapted to being an interface for filling and relieving excess pressure from a closed fluid system. An insert shell retains a piston member for movement between fluid input and fluid holding configurations, the piston member being resiliently biased toward fluid holding configuration. When in fluid holding configuration, the piston member sealingly engages an inlet bore of the insert shell. When in fluid input configuration, the piston member allows fluid flow through the inlet bore. A housing receives the insert shell, thereby limiting relative axial movement and forming a cavity between a portion of the housing the insert shell. This cavity provides mechanical guidance and a flow channel for an overpressure relief system having fluid retaining and fluid relief configurations, the overpressure relief system being elastically biased toward fluid retaining configuration. The elastic bias is overcome responsive to excess pressure within the closed fluid system.
First Claim
Other Claims data not available
