Metal working – Method of mechanical manufacture – Valve or choke making
Reexamination Certificate
2007-06-22
2009-11-17
Hepperle, Stephen (Department: 3753)
Metal working
Method of mechanical manufacture
Valve or choke making
C137S592000, C141S326000, C220S086200, C029S890127
Reexamination Certificate
active
07617604
ABSTRACT:
A shut-off valve assembly includes a one-piece housing having an inlet and an outlet. During manufacture, the housing is formed with an inlet end plate and a fully open end opposite the end plate. A valve door assembly including a flapper door is secured in the housing, and includes a seal between the flapper door and the housing. The open end is then reformed to provide an outlet from the housing. In a fuel system, a cover assembly is releasably secured to the housing.
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patent: 1420721 (1922-06-01), McNiff
patent: 4011962 (1977-03-01), Favell
patent: 5058408 (1991-10-01), Leftault et al.
patent: 5071018 (1991-12-01), Moore
patent: 5186220 (1993-02-01), Scharrer
patent: 6755057 (2004-06-01), Foltz
patent: 6983773 (2006-01-01), Hagano et al.
patent: WO 0226515 (2002-04-01), None
Bush Kirk J.
Cisternino Franco A.
Levey Kenneth R.
Parker Eric G.
Croll Mark W.
Donovan Paul F.
Hepperle Stephen
Illinois Tool Works Inc.
Rost Andrew J
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