Valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 10, 2007
Grant Date -
Jun 8, 2006
app pub date -
Dec 7, 2005
filing date -
Dec 8, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A piston assembly for a door closer includes a piston formed with a mounting hole and a door closer valve installed with clearance in the mounting hole. The door closer valve has a body part with first and second formations at opposite respective ends of the body part for engaging opposite respective sides of the piston and retaining the valve in the mounting hole. The body part is movable in the mounting hole axially of the mounting hole. The first formation is a protruding flange for seating against the piston at the first side thereof around the mounting hole and creating a seal around the mounting hole.
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