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US 4,534,378 AGranted
Gate valve adaptor
AssigneeAdaptor, Inc.
InventorsMichael S. Gagas, Stanley J. Gagas
Life of this patent
Estimating the term…
Abstract
An adaptor for supporting a key box on an underground gate valve, the adaptor including a rectangular metal ring adapted to be seated on the gate valve bonnet flange, a number of radially extending arms positioned to engage the lower edge of the key box bonnet, and a resilient ring positioned between the adaptor ring and the key box flange.
Claims5
A gate valve-key box adaptor comprising a
- flat rectangular ring having a configuration corresponding to the configuration of the bonnet flange of a gate valve, said ring being adapted to be placed on the flange, and a plurality of S-shaped arms extending radially outwardly from said ring and mounted on the corners of the ring, a key box including a botton edge for engaging a portion of each one of said S-shaped arms for supporting said key box on said gate valve bonnet flange.
Dependencies are inferred from the claim text.