Browse Prior Art Database

Simplified Pinch Valve

IP.com Disclosure Number: IPCOM000121387D
Original Publication Date: 1991-Aug-01
Included in the Prior Art Database: 2005-Apr-03
Document File: 1 page(s) / 41K

Publishing Venue

IBM

Related People

Derdall, B: AUTHOR

Abstract

Disclosed is a design for a simple pinch valve that can be used to control fluids flow in soft-walled tubes. In this design, the tubes are configured at right angles as shown in Fig 1. By applying sufficient pressure to the control line, the flow in the other line can be regulated or stopped.

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Simplified Pinch Valve

      Disclosed is a design for a simple pinch valve that can be used
to control fluids flow in soft-walled tubes. In this design, the
tubes are configured at right angles as shown in Fig 1. By applying
sufficient pressure to the control line, the flow in the other line
can be regulated or stopped.

      A single control line may control multiple flow lines, or
multiple control lines may control a single flow line; thus, this
valve can be configured into a matrix or made to perform logical
functions.

      This valve can be used with any gas or liquid that can be
contained in the tubes.  It is inexpensive to construct, compact and
has no moving parts. A prototype was built using 1.8 mm polyethylene
tubes sandwiched between two pieces of plastic. The pieces of plastic
were clamped together to drill and tap the holes; they were then
separated to lay the tubes in and then clamped or glued together for
final assembly. Alternatively, a folded control line can be used
around both sides of the tubes to achieve a more effective pinch
action.

      Disclosed anonymously.