Fluid flow adjustment mechanism
AssigneeFlexcorp
InventorsNeil G. Stewart, Gordon M. Day
Life of this patent
Estimating the term…
Abstract
A fine flow pinch adjust has a T shaped fluid communication path. A flexible tube is inserted within the fluid communication path in other than a straight path. A screw is inserted in one branch of the T unoccupied by the flexible tubing such that the screw cooperatively engages threads on the opening wall and such that the screw can engage the tubing when turned sufficiently in a known direction.
Claims20
A fine flow pinch adjust mechanism comprising:
- a channel for supporting a flexible tube bent by a fixed substantial angle at a first location;
- and,
- an opening for receiving a corresponding member and extending toward the first location, the opening for supporting controlled motion of the member in a direction toward and away from the first location.
A fluid flow adjustment mechanism for controlling a fluid flow rate in a length of flexible tubing, comprising:
- a housing having a surface for engaging the length of flexible tubing, the engagement of the surface with the length of flexible tubing supporting a substantial first bending deformation of the flexible tubing in a first portion of the length of flexible tubing, said first bending deformation occurring without preventing a flow of fluid within the flexible tubing;
- and,
- a ram mechanically engaged with said housing, the ram for selectably engaging the first portion to compress the first portion against the housing thereby causing a second deformation of the first portion in dependence upon the position of the ram.
A fine flow pinch adjust comprising:
- a casing having:
- a second opening;
- a first threaded cylindrical opening opposite the second opening, the first and second openings in fluid communication with each other;
- and,
- a third opening in fluid communication with the first and second openings;
- and,
- a screw having a threading for engaging with a threading of the first threaded cylindrical opening and for moving in and out of the first threaded cylindrical opening in response to a rotation of the screw relatively to the first threaded cylindrical opening,
- wherein in use a flexible tube is positioned between the second and third openings in other than a straight path, the flexible tubing being engageable by the screw.
A fine flow pinch adjust mechanism for controlling a flow in a length of flexible tubing comprising:
- means for supporting and bending a portion of the length of flexible tubing;
- and,
- means for selectably deforming the portion to control a rate of fluid flow therein absent substantially affecting the bending of the portion.
Dependencies are inferred from the claim text.