Manhole structure, flexible water shut off joint for manhole structure and method for installing manhole structure
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jun 16, 2005
app pub date -
Oct 4, 2004
filing date -
Jan 23, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
There is provided a manhole structure 1 formed by joining a cast-in-place concrete manhole wall 2 to a pipe 3. In the manhole structure 1, the pipe 3 is driven and laid in a vertical shaft 4, and a flexible cut-off joint 5 for manhole is disposed on an outer periphery of the pipe 3. The flexible cut-off joint 5 for manhole comprises a rigid cylindrical body 6 and a tubular flexible body 7 located at an inside of the cylindrical body 6 in a space between the cylindrical body and the pipe, and the tubular flexible body 7 is made of an elastic body. An end 7a of the tubular flexible body 7 is press-fixed to an inner surface of the cylindrical body 6 with an expansion band 8, and the other end 7b of the tubular flexible body 7 is press-fixed to an outer periphery of the pipe 3 by tightening with a fastening band 9. The manhole wall 2 is formed by pouring a concrete on the outer periphery of the cylindrical body 6. The tubular flexible body 7 in the manhole structure 1 absorbs an expansion-contraction displacement, a bending displacement, a shearing displacement and the like between the manhole wall 2 and the pipe 3 without applying a load to the pipe 3.
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