Metallic sheath for posttensioning method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 25, 1986
Grant Date -
N/A
app pub date -
Nov 12, 1982
filing date -
Nov 13, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a prestressed concrete structure executed by posttensioning method, a metallic sheath having an inner peripheral surface thereof in sliding contact with a tendon coated with a solid lubricating coating including polytetrafluoroethylene (PTFE). By the use of this metallic sheath, the sliding frictional resistance produced between the metallic sheath and tendon when the tendon is subjected to tensioning operation is considerably decreased to increase the prestressing force introduced into the structure accordingly. The solid lubricating coating is excellent in flexibility and contact properties, and good characteristics of coating are imparted to the sheath.
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