Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Fastener – or coaxial adjunct therefor – having sidewardly...
Patent
1987-07-23
1988-11-29
Smith, Gary L.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Fastener, or coaxial adjunct therefor, having sidewardly...
411122, 411533, 411976, F16B 3910
Patent
active
047877910
ABSTRACT:
A bubble cap assembly is provided with keyways and a special keyed lock washer with locking tabs to securely fasten the bubble cap during operation in a reactor. The unique arrangement also accommodates simple removal for easy maintenance and decoking without damaging the bubble cap assembly.
REFERENCES:
patent: 223622 (1880-01-01), Wilson
patent: 534876 (1895-02-01), Hanvey
patent: 613630 (1898-11-01), Himes
patent: 1302105 (1919-04-01), Warren
patent: 1374054 (1921-04-01), Bridge
Lambousy George G.
Nelson William E.
Reaves Benjamin H.
Amoco Corporation
Brueske Curtis B.
Magidson William H.
Medhurst Ralph C.
Smith Gary L.
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