Valve using rolamite mechanism

Details Valve using rolamite mechanism Valve using rolamite mechanism

1977-12-19

1979-04-03

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

251DIG2, F16K 1300

Patent

active

041471830

ABSTRACT:
A curtain valve has a valve chamber having a pair of opposed walls with an inlet port through one wall and an outlet port through the other wall. A valve member has a tension band supported on opposite ends thereof in a valve body with the band being looped around a pair of rollers forming a pair of bights which partially encircle the rollers. The tension band is perforated on the end portion which overlies the inlet port. A stem is connected to one of the rollers and extends from the valve body for displacing the rollers and moving the tension band to cover and uncover the outlet port thereby closing and opening the valve.

REFERENCES:
patent: 212556 (1879-02-01), Johnson
patent: 3726313 (1973-04-01), Pandya
patent: 3794068 (1974-02-01), Milroy
patent: 4084617 (1978-04-01), Happe

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