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As an on-off valve for the engine coolant supply to an automobile heater 2011-12-20
Valves for such an application must be very inexpensive to manufacture and assemble, must operate to provide a reliable seal in the adverse environment found in the engine compartment of an automobile
An embodiment of a butterfly valve 2011-12-19
In an advantageous embodiment of a butterfly valve the seat of the valve has a seating surface defining a section of an oblique cone having its apex lying in the wall of the cylindrical housing, a sec
Butterfly valve with a wall-mounted 2011-12-16
An improved butterfly valve of the type wherein a disc mounted for rotation about a nondiametric axis and having a continuously convergent circumferential sealing surface which cooperates with a wall-
Butterfly valve with an internal cylindrical bore 2011-12-14
A butterfly valve comprising a body having an internal cylindrical bore with two radial coaxial passages diametrically opposed with respect to said bore, a butterfly including a spherical cap section
The art of butterfly valves 2011-12-13
The prior art to which the invention is directed includes the art of butterfly valves being of a type in which a usually circular vane or disk is rotatable in the valve passage between an open and clo
A disk-like valve 2011-12-12
The present invention relates to a butterfly valve in which a disk-like valve member rotates about a valve stem acting as a shaft.
A valve housing 2011-12-09
A valve housing having a cylindrical fluid passage therethrough; a disc shaped valve body having a hard annular rim of elliptical cross-sectional shape thereon extending in the plane of the valve body
The butterfly valve element 2011-12-08
A butterfly valve including a housing having a hollow passage defining a flow path and a shaft mounted to the housing and extending transversely across the flow path. The shaft defines an axis of rota
