초록 ▼

A combination valve assembly is provided for controlling fluid flow through a housing within which a ball element is operatively positioned and has a throttle valve element operatively mounted within its bore. The ball element has a latching slot to receive a latching spline carried on the inner end

A combination valve assembly is provided for controlling fluid flow through a housing within which a ball element is operatively positioned and has a throttle valve element operatively mounted within its bore. The ball element has a latching slot to receive a latching spline carried on the inner end of an outer sleeve-like stem that extends through the side wall of the housing. The throttle valve is operated by a stem extending inwardly along the outer sleeve stem which operates the ball element. The throttle valve element may be set for any desired size of fluid control opening, and may have either a bubble or a sealed closing-off fit within the bore of the ball element.

대표청구항 ▼

An improved ball and throttle valve construction having a demountable housing assembly of interfitting body parts that define a through-extending fluid passageway therethrough which comprises, a ball valve having a fluid-flow bore open therethrough and being operatively positioned for rotative openi

An improved ball and throttle valve construction having a demountable housing assembly of interfitting body parts that define a through-extending fluid passageway therethrough which comprises, a ball valve having a fluid-flow bore open therethrough and being operatively positioned for rotative opening and closing movement within the fluid passageway, said ball having a latching recess portion in its outer wall, a side boss open through the housing assembly to said ball, a first stem operatively positioned to extend within said boss and having a latching spline at its inner end adapted to operatively engage within said latching recess portion, a second stem operatively extending co-axially along and outwardly from an outer end portion of said first stem and inwardly through said spline and the wall of said ball into said bore, a disc-like throttle valve element operatively extending across and within said bore for rotative movement therein, an inner end of said second stem being secured to said throttle valve element, said first and second stems having end portions projecting outwardly from said boss, operating means on said stems that are positioned outwardly of said boss for respectively turning them to rotate said ball within the passageway of the housing assembly and to rotate said throttle valve element within said bore, gland means operatively sealing said first and second stems within said boss, and detachable positioning means cooperating with the gland means for operatively retaining said first stem within said boss and second stem within the first stem enabling endwise removal of said first stem from said boss and said second stem from said first stem, said first stem being of sleeve-like construction and having a central bore extending through said latching spline, and said second stem extending along said central bore through the wall of and into said bore of said ball and having means for demountably securing said throttle valve element thereto.