Corrosion-resistant tension member, particularly a tendon for prestressed concrete
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 13, 2007
Grant Date -
Feb 17, 2005
app pub date -
Aug 2, 2004
filing date -
Aug 2, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A corrosion-resistant tension member, particularly a tendon for prestressed concrete, comprising a bundle of tension elements arranged inside a sheathing, has at its ends anchoring devices each with an anchor plate. On the side of the anchor plate facing away from the open air side, a seal having tension elements running through it and having a sealing plate are arranged, the sealing plate being fixed in place on the side facing away from the anchor plate opposite the anchor body against longitudinal displacement. Between the anchor plate and a pressure plate butting against the sealing plate, pressure-transferring means, for example, a pressure tube, are provided, having a length calculated in such a way that a longitudinal displacement of the anchor plate that occurs when the tension elements are being tensioned, actuates the exertion of surface pressure to the sealing plate for activating the seal.
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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DYWIDAG-SYSTEMS INTERNATIONAL GMBH | 80796 MÜNCHEN |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Nuetzel, Oswald | Munich, DE | 6 | 67 |
# of filed Patents : 6 Total Citations : 67 | |||
Zimmermann, Egbert | Haar, DE | 7 | 84 |
# of filed Patents : 7 Total Citations : 84 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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