Weir-type diaphragm valve with raised arcuate bead
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 10, 2003
Grant Date -
Oct 25, 2001
app pub date -
Sep 14, 1999
filing date -
Sep 14, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A weir-type diaphragm valve having a valve body, a flexible diaphragm and a valve stem. The valve body has an inlet end, an outlet end and an internal flow path disposed between the inlet end and the outlet end. Within the valve body is a weir disposed transverse to the flow path. Along the top edge of the weir is disposed a raised bead extending substantially along the entire length of the top edge of the weir. The flexible diaphragm is disposed above the valve seat. The diaphragm is flexible between a closed diaphragm position wherein the diaphragm is in tight abutment with the valve seat (so that the valve path is sealed closed) and an open diaphragm position wherein the diaphragm is spaced apart from the valve seat (so that the valve path is open). The valve stem and handle assembly is adapted to alternatively flex the diaphragm between the closed diaphragm position and the open diaphragm position.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully