초록 ▼

A valve has a housing to which a 360 degree notch plate is integrally connected. A valve member mounted within the housing control fluid flows and rotates though substantially 90 degrees between maximally open and closed positions. A valve stem extends upwardly from the valve and through an opening

A valve has a housing to which a 360 degree notch plate is integrally connected. A valve member mounted within the housing control fluid flows and rotates though substantially 90 degrees between maximally open and closed positions. A valve stem extends upwardly from the valve and through an opening formed in the notch plate. A handle is releasably secured to the valve stem immediately above the notch plate and has a spring-biased pivoting arm which cooperates with the notches to permit the angular position of the handle and consequently the valve member to be incrementally adjusted and locked. The upper surface of the notch plate has four distinct quadrants, and a number of holes formed at predetermined locations, a different pair of holes being associated with and positioned to either side of each quadrant. The valve stem is shaped to receive the handle in only predetermined angular orientations relative to the valve member. The predetermined angular orientations and the location of the holes are such that, with the handle located in any selected quadrant and the stops located in the pair of holes associated with the selected quadrant, the valve member is fully open when the handle abuts one stop is closed when the handle abuts the other stop.

대표청구항 ▼

A valve comprising: a housing having a internal fluid flow path; a valve member in the fluid flow path; a valve stem attached to the valve member, the valve stem having an end portion extending externally of the housing; means mounting the valve member and the valve stem to the housing for rotation

A valve comprising: a housing having a internal fluid flow path; a valve member in the fluid flow path; a valve stem attached to the valve member, the valve stem having an end portion extending externally of the housing; means mounting the valve member and the valve stem to the housing for rotation about a predetermined rotational axis extending longitudinally through the valve stem, the valve member being rotatable through about ninety degrees between a fully open orientation in which the valve member permits maximum fluid flow along the fluid flow path and a closed orientation in which the valve member closes the fluid flow path; a member attached to the housing and defining a surface substantially perpendicular to the rotational axis, the surface having four 90-degree quadrants centered on the rotational axis, the valve stem portion extending though the surface, the surface-defining member having a generally circular peripheral edge portion formed with a multiplicity of circumferentially spaced-apart notches extending through 360 degrees about the peripheral edge portion; a handle releasable attachable to valve stem end portion above the surface to permit rotation of the valve stem and valve member about the rotational axis, the handle having means cooperating with the notches for releasably fixing the handle at incrementally and circumferentially spaced-apart positions about the peripheral edge portion when the handle is attached to the valve stem end portion; a pair of stop members; a multiplicity of open-ended holes formed in the surface-defining member at a predetermined locations at the surface, a different pair of the multiplicity of holes being associated with each of the quadrants and positioned circumferentially to either side of the associated quadrant and in diametrically opposite quadrants; each of the stop members being associated with means for releasably securing the stop member in any one of the multiplicity of holes such that the stop member projects outwardly from the surface; the valve stem end portion having means for orienting the handle in predetermined angular orientation relative to the valve member, the predetermined angular orientations and the predetermined locations being so selected that, when the handle is attached to the valve stem end portion and located above any selected one of the four quadrants and the pair of stop members are retained at the pair of predetermined locations associated with the selected quadrant, the valve member is in the fully open orientation when the handle abuts one of the stop members and the valve member is in the closed orientation when the handle abuts the other of the stop members. A valve as claimed in claim 13 adapted to be operated alternatively by means of the handle or by means of an automatic actuator, the surface-defining member being formed with an additional set of open-ended holes of predetermined size and spaced-apart in a predetermined orientation such that the automatic actuator can be secured with threaded fasteners to the surface in engagement with the valve stem end portion.