Valving element for butterfly valve

Details Valving element for butterfly valve Valving element for butterfly valve

2009-09-25

2011-12-13

Murphy, Celia (Department: 2911)

Environmental heating and cooling; fluid handling and sanitary e

Fluid handling or treatment equipment

Valve or body therefor

Design Patent

active

D0650470

CLAIM:
The ornamental design for the valving element for butterfly valve, as shown and described.

REFERENCES:
patent: 2053668 (1936-09-01), Kinzie et al.
patent: 4294428 (1981-10-01), Okada et al.
patent: 4667883 (1987-05-01), Fink, Jr.
patent: 6079695 (2000-06-01), Gasaway et al.
patent: 6595488 (2003-07-01), Zwick
patent: 6758458 (2004-07-01), Ando et al.
patent: 6959690 (2005-11-01), Reynard
patent: 7490627 (2009-02-01), Hourai
patent: D620555 (2010-07-01), Chuang et al.

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