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Class Information
Number: 137/370
Name: Fluid handling > With casing, support, protector or static constructional installations > Static constructional installations > Ground supporting enclosure > Valve and meter wells > Telescopic well casing
Description: Valve wells in which the vertical column is divided into movable sections slidable one within the other, which sections may be locked together to fix the height of the casing.










Patents under this class:

Patent Number Title Of Patent Date Issued
8082945 Top operating telescoping adjustable valve box and valve stem assembly Dec. 27, 2011
7703474 Gate valve sealing structure Apr. 27, 2010
6802337 Valve can extension Oct. 12, 2004
6354325 Underground access conduit Mar. 12, 2002
6036401 Roadway access device and method of using same Mar. 14, 2000
5996612 Apparatus for elevating a meter enclosure cover Dec. 7, 1999
5979490 Adjustable anti-freeze water delivery assembly Nov. 9, 1999
5803125 Adjustable valve box Sep. 8, 1998
5775365 Flood protection sewer backflow control valve and adapter assembly Jul. 7, 1998
5769565 Protective housing for sewer or septic clean-out lines Jun. 23, 1998
5738140 Adjustable height extension stem and valve box assembly Apr. 14, 1998
5671772 Adjustable valve box Sep. 30, 1997
5634488 Modular valve service box Jun. 3, 1997
5577531 Flood protection sewer backflow control valve and adapter assembly Nov. 26, 1996
5343890 Sump protector Sep. 6, 1994
5220942 Extensible indicator post for valve assemblies Jun. 22, 1993
5163469 Unitary article comprising protective system components Nov. 17, 1992
4905725 Underground access box and valve operating and protecting means Mar. 6, 1990
4874105 Valve box Oct. 17, 1989
4548230 Surface box Oct. 22, 1985
4469115 Extended valve box and process for securing extension to valve box Sep. 4, 1984
4350177 Utility box support Sep. 21, 1982
4325405 Valve box assembly Apr. 20, 1982
4308886 Curb box Jan. 5, 1982
4239056 Valve service box having means for securing different sized valves against rotation Dec. 16, 1980
4064902 Curb box Dec. 27, 1977











 
 
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