Gate valve adaptor

Details Gate valve adaptor Gate valve adaptor

1983-05-16

1985-08-13

Chambers, A. Michael

Fluid handling

With casing, support, protector or static constructional...

Static constructional installations

251292, 52 20, F16L 500

Patent

active

045343780

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.

REFERENCES:
patent: 250780 (1881-12-01), Broughton
patent: 947706 (1910-01-01), Takelenburg
patent: 2176399 (1939-10-01), Garrett
patent: 2596532 (1952-05-01), Coolidge et al.
patent: 4275757 (1981-06-01), Singer

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