Butterfly valve

Details Butterfly valve Butterfly valve

1977-10-07

1979-12-04

Cline, William R.

Valves and valve actuation

Rotary valves

Butterfly

251 58, 251146, 251214, 251308, 251358, F16K 1226

Patent

active

041768230

ABSTRACT:
A fluid flow controlling butterfly valve assembly is disclosed which comprises a valve body defining a through passage for fluid, a butterfly valving member supported within the body, a shaft extending transversely through the passage and drivingly connected to the valving member, and a shaft supporting structure rotatably supporting the shaft in the body while sealing against leakage from the valve.
In a preferred embodiment the shaft supporting structure includes a band extending about the body and defining recesses aligned with shaft portions emerging from the body. Resilient flexible elements are disposed within the recesses and compressively engage the shaft and body to provide both bearings and seals.

REFERENCES:
patent: 2301653 (1942-11-01), Wells
patent: 2482198 (1949-09-01), Melichar
patent: 2544520 (1951-03-01), Ball
patent: 2695625 (1954-11-01), Ogle
patent: 2772850 (1956-12-01), Eaton
patent: 2864394 (1958-12-01), Hempel
patent: 2980388 (1961-04-01), White
patent: 3029063 (1962-04-01), Moen
patent: 3111300 (1963-11-01), Boone, Sr.
patent: 3260502 (1966-07-01), Plumer
patent: 3363645 (1968-01-01), Miller
patent: 3568975 (1971-03-01), Obermaier
patent: 3675681 (1970-08-01), Obermaier
patent: 3757726 (1973-09-01), Moeller
patent: 3857406 (1974-12-01), Dorling
patent: 4025050 (1977-05-01), Manki et al.

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