Pipes and tubular conduits – With flow regulators and/or baffles – Restrictors
Patent
1982-11-01
1985-02-26
Rosenthal, Arnold
Pipes and tubular conduits
With flow regulators and/or baffles
Restrictors
251331, 23953313, 239106, 137244, 604246, F16K 712
Patent
active
045013004
ABSTRACT:
A valve is described having a ridge extending along a flat surface having holes therein and a base of elastic material compressed against the ridge and flat surface so as to define a channel of small cross-section communicating between the openings. A tab is connected to the side of the base of elastic material that is remote from the ridge and the flat surface so that a pull on the tab pulls the base away from the flat surface and enlarges the cross-section of the channel.
REFERENCES:
patent: 3326242 (1967-06-01), Parkison
patent: 4023595 (1977-05-01), Zakay
patent: 4304260 (1981-12-01), Turner et al.
Hewlett--Packard Company
Rosenthal Arnold
Timbie Donald N.
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