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Class Information
Number: 137/369
Name: Fluid handling > With casing, support, protector or static constructional installations > Static constructional installations > Ground supporting enclosure > Valve and meter wells > Combined with actuator > Telescopic well casing
Description: Valve wells in which the vertical column is divided into sections slidable one within the other, which sections may be locked together to fix the height of the column.










Patents under this class:

Patent Number Title Of Patent Date Issued
8091571 Valve box, valve control device and assembly thereof Jan. 10, 2012
8082945 Top operating telescoping adjustable valve box and valve stem assembly Dec. 27, 2011
7117883 Valve key alignment assembly for curb stop box Oct. 10, 2006
6802337 Valve can extension Oct. 12, 2004
6354325 Underground access conduit Mar. 12, 2002
5979490 Adjustable anti-freeze water delivery assembly Nov. 9, 1999
5775365 Flood protection sewer backflow control valve and adapter assembly Jul. 7, 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
5220942 Extensible indicator post for valve assemblies Jun. 22, 1993
4905725 Underground access box and valve operating and protecting means Mar. 6, 1990
4702275 Post assembly for a buried valve Oct. 27, 1987
4548230 Surface box Oct. 22, 1985
4452271 Plastic pipe squeezing device and valve box for use therewith Jun. 5, 1984
4245672 Sealing valve for sludge scavenging system Jan. 20, 1981











 
 
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