Fluid handling – Destructible or deformable element controlled – Heat destructible or fusible
Patent
1982-09-10
1983-12-20
Weakley, Harold W.
Fluid handling
Destructible or deformable element controlled
Heat destructible or fusible
137 73, 137 77, F16K 1304
Patent
active
044211341
ABSTRACT:
A manually operated gate valve having a fusible element located exterior of the shaft sealing element. Melting of the fusible element permitting outward movement of the shaft and gate elements with all the movable elements being confined to the housing.
REFERENCES:
patent: 2028149 (1936-01-01), Goldsmith
patent: 2817349 (1957-12-01), Seaver
Bruton Billy R.
Snyder David E.
Axelson, Inc.
Weakley Harold W.
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