Apparatus for handling flowable material
AssigneeTrythall Design and Development Ltd.
InventorWilliam John Courtney Trythall
Life of this patent
Estimating the term…
Abstract
An Apparatus for handling flowable material, such as sludge or granular or powder materials, a pneumatically operated annular closure member located in an annular casing is retracted to allow the material to flow into a space at the bottom of the apparatus and is extended to close this space and entrap the material within it. Air pressure is applied to this enclosed space to transport the material from that space through an outlet tube. Opening and closing of the closure member and the application of air under pressure to the material are controlled pneumatically.
Claims7
An apparatus for handling flowable material comprising a base providing an annular valve seat, a support plate spaced from the base having inner and outer concentric casings supported thereon, a pneumatically operable annular closure member located in an annular chamber defined between the casings and mounted for movement between a retracted position in which a material inlet provided between said support plate and said base is open and an extended position in which the closure member engages said valve seat to close said inlet, a material outlet tube opening adjacent said base and extending axially away therefrom through the interior of the inner casing, and pneumatic control means for controlling the opening and closing of said inlet by the closure member, and means for directing air under pressure to the space enclosed by the closure member when the closure member is in its extended position to transport material from that space through the outlet tube.
Apparatus for handling flowable material comprising a base providing an annular valve seat, legs extending from the base and secured to a support plate spaced from the base, inner and outer concentric casings supported on said support plate, a pneumatically operable annular closure member located in an annular chamber defined between the casings and mounted for movement between a retracted position in which a material inlet provided between said support plate and said base is open and an extended position in which the closure member engages said valve seat to close said inlet, a material outlet tube opening adjacent said base and extending axially away therefrom through the interior of the inner casing, and pneumatic control means for controlling the opening and closing of said inlet by the closure member, and means for directing air under pressure to the space enclosed by the closure member when the closure member is in its extended position to transport material from that space through the outlet tube.
Dependencies are inferred from the claim text.