GB1025947A - Tubing clamp - Google Patents

Abstract

1,025,947. Fluid pressure control valves. ABBOTT LABORATORIES. Feb. 12, 1963, No. 5730/63. Heading F2V. [Also in Division E2] A clamp for regulating flow through a length of flexible tubing T comprises a clamp body 11 having a passage 14 to receive said tubing and a lateral opening 15 having a transverse slot portion 17 and a portion 16 perpendicular to the passage 14 and joined to the passage by an opening and at the end portion of the body remote from the passage an axial opening 19 joining the transverse slot portion to an end face of the clamp body, a clamping member 21 slidable in the openings to enter the passage and comprising a threaded shank 23 and a tubing engaging portion 22 capable of compressing the tubing against the opposing wall of the passage, a nut 26 threadably received on the shank and disposed in the transverse slot portion whereby the nut is prevented from substantial axial movement and means to prevent the clamping member from substantial rotation. As shown, the means to prevent substantial rotation comprises opposite flat faces of the perpendicular portion of the opening and co-operating flat faces of the threaded shank. Axial movement of the clamping member is limited by a pair of lugs 24, 25 which extend laterally. As shown, the wall of the body above the opening 19 has a restricted side entrance 20 through which the shank of the clamping member is passed into the opening 19; since the material of the body is resilient the clamping member is then retained in the opening 19. In a modification the lugs 24, 26 are omitted and axial movement of the clamping member is limited by a head on the clamping member which engages the upper wall of the body.