Demountable valve
First Claim
1. A valve comprising a hollow body having two oppositely disposed flow ports, a plug rotatable in said hollow body for controlling the flow of fluid between said ports, a substantially cylindrical operating stem integral with said plug, said stem emerging from an opening of said valve body having a central axis and protruding beyond said valve body, said body having at least one oblique recess therein for receiving the valve operating stem thereby to permit insertion of said plug and stem, as a one-piece assembly, into said body and removal of said plug and stem as a one-piece assembly from said body through one of said ports having a central axis, said recess being disposed between said opening and said one port, said oblique recess having a wall that is part of the surface of a cylinder whose radius is slightly greater than the radius of said cylindrical operating stem, the axis of said surface intersecting said axes of said opening and said one port at acute angles.
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Accused Products
Abstract
The valve has a hollow body provided with two ports for the circulation of a fluid and fitted with a plug having an operating stem which is integral with the plug and emerges from an opening of the valve body. At least one oblique recess is provided between the opening and one of the ports in order to facilitate the positioning of the valve-operating stem.
19 Citations
10 Claims
- 1. A valve comprising a hollow body having two oppositely disposed flow ports, a plug rotatable in said hollow body for controlling the flow of fluid between said ports, a substantially cylindrical operating stem integral with said plug, said stem emerging from an opening of said valve body having a central axis and protruding beyond said valve body, said body having at least one oblique recess therein for receiving the valve operating stem thereby to permit insertion of said plug and stem, as a one-piece assembly, into said body and removal of said plug and stem as a one-piece assembly from said body through one of said ports having a central axis, said recess being disposed between said opening and said one port, said oblique recess having a wall that is part of the surface of a cylinder whose radius is slightly greater than the radius of said cylindrical operating stem, the axis of said surface intersecting said axes of said opening and said one port at acute angles.
Specification