Dust trap valve with removeable double-life door and valve seat member
OwnerStephen R. O'Connell, deceased, Patrick M. O'Connell, executorinventors
Life of this patent
Estimating the term…
Abstract
A dust valve for the discharge line of a dust collection system includes a removable closet with two wear surfaces and a coacting removable valve door with two wear surfaces mounted within the valve body. Once the coacting wear surfaces on the closet and the door are sufficiently worn that they need replacement, each element can be disconnected from its supporting structure, inverted, and then reconnected to the valve body so as to expose a new wear surface. The useful lives of these elements is thus doubled over conventional single wear surface closets and doors.
Claims10
In a valve which functions to control the flow of material therethrough, said valve including
- a hollow valve body defined by four interconnected walls including opposed side walls, a front wall and a back wall, said front wall including an access opening therein,
- a plate removably connected to said front wall so as to sealingly cover said access opening,
- a hollow valve seat member removably mounted entirely within said hollow valve body, said valve seat member including a seat portion against which a valve door may be positioned so as to block flow of material through said valve body, and
- a valve door movably mounted within said hollow valve body for positioning against said seat portion of said valve seat member so as to block flow of material through said valve body or away from said seat portion so as to allow flow of material through said valve body,
- the improvement wherein,
- said hollow valve seat member is in the form of a hollow closet which includes V-shaped side walls having top and bottom edges, an interconnecting rectangular front wall having a top and bottom edge, and flanges which extend along the top and bottom edges of said side walls, said front wall and said rear beam, each of said flanges having a flat exposed sealing surface such that the hollow valve seat member will have separate seat portions, said hollow valve seat member being positionable within said hollow valve body such that either of said seat portions is alternatively capable of being contacted by said valve door.
In a valve which functions to control the flow of material therethrough, said valve including
- a hollow valve body defined by four interconnected walls including opposed side walls, a front wall and a back wall, said front wall including an access opening therein,
- a plate removably connected to said front wall so as to sealingly cover said access opening,
- a hollow valve seat member removably mounted within said hollow valve body, said valve seat member including a seat portion against which a valve body may be positioned so as to block flow of material through said valve body, and
- a valve door movably mounted within said hollow valve body for positioning against said seat portion of said valve seat member so as to block flow of material through said valve body or away from said seat portion so as to allow flow of material through said valve body,
- the improvement wherein,
- said valve door comprises a rectangular member having top and bottom wear surfaces, said rectangular door member including recesses in opposite sides thereof, wherein a holding bracket means is pivotally connected to said valve body, said holding bracket means including clamping means for engagement within said recesses of said rectangular door member, such that said door member may be clamped to said holding bracket means such that either the top or bottom wear surfaces may be positioned against the seat portion of said valve seat member.
Dependencies are inferred from the claim text.