Reversible ball valve handle

Valves and valve actuation – Limit stop – Adjustable

Reexamination Certificate

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Details

C251S286000

Reexamination Certificate

active

07000896

ABSTRACT:
A valve having a valve body, a rotary valve member, a valve handle, and a selectively repositionable valve handle stop member. The valve body includes first and second openings into which the stop member may be installed. The openings are provided on opposite sides of the lower end of the valve handle such that, when the stop member is installed in the first opening, the valve handle is rotated in a first direction between a first orientation, which corresponds to the valve member being full open, and a second orientation, which corresponds to the valve member being full closed. Alternatively, when the stop member is installed in the second opening, the valve handle is rotated in a second, opposite direction to move the valve member from the full open to the full closed position. When no stop member is installed, the valve member is sequentially moved from the full closed position, to the full open position, and then to the full closed position as the valve handle traverses a 180° arc.

REFERENCES:
patent: 31465 (1861-02-01), Leffingwell
patent: 280176 (1883-06-01), Higgins
patent: 3528640 (1970-09-01), Smith
patent: 4559966 (1985-12-01), Massey et al.
patent: 4747427 (1988-05-01), Smith et al.
patent: 4852610 (1989-08-01), McHugh
patent: 5139041 (1992-08-01), Albrecht
patent: 5259589 (1993-11-01), Posner
patent: 5329959 (1994-07-01), Owen et al.
patent: 5482251 (1996-01-01), Roberts
patent: 5647389 (1997-07-01), Holloway
patent: 6568422 (2003-05-01), Niessen

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