Pipe coupling used with automatic connecting and disconnecting device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 12, 1991
Grant Date -
N/A
app pub date -
Dec 5, 1990
filing date -
Dec 7, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pipe coupling consisting of male and female elements for connecting and disconnecting a hydraulic or pneumatic piping used for industrial machinery. Each coupling element includes a check valve therein which is actuated by connecting and disconnecting operation to automatically open the passageway of the coupling when it is connected and to automatically close it when it is disconnected. The inventive pipe coupling is designed for use with a conventional automatic connecting and disconnecting device such as automatic coupling device for large scaled industrial machinery.
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