Pinch valve
AssigneeJ. H. Gooch & Company Limited
InventorJohn Henry Gooch
Life of this patent
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Abstract
A pinch valve has a tubular resilient sleeve with at least one transversely elongate aperture extending through it that is opened and closed by a control member having elements engaging diametrically opposite regions of the sleeve. The control member is rotatable on the sleeve between one angular position in which said elements engage regions of the sleeve substantially co-incident with the transverse longitudinal axis of said aperture to hold the aperture open, and another angular position in which the elements engage opposite regions transverse to said axis to squeeze said aperture closed.
Claims15
A valve comprising, in combination, a resilient tubular valve member, at least one transversely elongate passage through the valve member that is capable of being opened and closed by deformation of the valve member, an outer control member extending around at least a part of the periphery of the valve member and rotatable relative to the valve member about said periphery, said control member engaging different portions of the valve member periphery in respective positions of relative rotational adjustment in one of which it urges said at least one passage open and in another of which it urges said at least one passage closed.
Dependencies are inferred from the claim text.