DOOR CLOSER DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Sep 21, 2006
app pub date -
Feb 21, 2006
filing date -
Mar 5, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A door closer device for connection between a door leaf and a door frame serves to automatically close the door after opening. The device has a housing that is received in the door leaf and a chain have one end connected inside the housing and the other end connected to the door frame. A spring connects the chain to the housing and serves to urge the chain into the housing bore. The chain links are pivotally connected plates with opposed side edges arranged such that a side edge of a link faces a corresponding side edge of an adjacent link. Each side edge defines a first portion and a second portion. The facing first portions of adjacent links are adapted to come into abutment when the links are arranged such that the longitudinal axis of the chain extends substantially in a straight line so as to prevent the links from pivoting in a first direction. The facing second portions of adjacent links are adapted to come into abutment when the links are pivoted in a second direction opposite to the first direction such that the articulation is limited and the links describe a line that substantially follows an arc.
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