Title: Butterfly valve

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.

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Inventors: Gliatas, Themistocles H. (Worthington, OH, US)

Application Number: 051842
Filing Date: 1979-06-25
Publication_date: 1980-04-29
Assignee: Ranco Incorporated (Columbus, OH)
Primary Class(es): 251/214 251/305, 251/308, 251/367
Other Classes:
US Patent Ref:

2729238	Jan, 1956	Hite	251/305.
2783771	Mar, 1957	Thomas	251/146.
3737144	Jun, 1973	Duncan	251/307.
3967810	Jul, 1976	Pulvermacher	251/146.
4060220	Nov, 1977	Fischer	251/306.
4093178	Jun, 1978	Hughes	251/305.
4111395	Sep, 1978	Sheppard	251/308.
4123035	Oct, 1978	Boudreau	251/146.
4133512	Jan, 1979	Johnson	251/214.

Other Refs: 566719

Sep, 1957	IT

Primary Examiner: Cline, William R.
Assistant Examiner: Spiegel, H. Jay
Attorney: Watts, Hoffmann, Fisher & Heinke