Valves and valve actuation – Tube compressors
Patent
1990-06-26
1991-06-25
Fox, John C.
Valves and valve actuation
Tube compressors
251 7, F16K 704
Patent
active
050260197
ABSTRACT:
A clamp for blocking flow through a flexible hose is formed of a one-piece L-shaped body of rigid material having a short leg formed with a generally circular throughgoing hole through which the hose can pass loosely enough for flow through the tube and a long leg formed with a throughgoing slot narrow enough that when the tube passes through it flow through the tube is blocked. The hole and slot communicate with and open into each other at a corner where the two legs join. The clamp is formed with a generally cylindrical passage forming the circular hole. This passage extends along an axis generally parallel to the long leg of the clamp. The cylindrical passage is formed by a pair of like part-cylindrical surfaces having a common centerline and each in turn formed on a wing-like side part of the clamp.
REFERENCES:
patent: 2889848 (1959-06-01), Redmer
patent: 2902248 (1959-09-01), Barton et al.
patent: 2928391 (1960-03-01), Krug
patent: 3103335 (1963-09-01), Martinez
patent: 4051578 (1977-10-01), Manschot et al.
Biekart Frank T.
Hilbrink Hubertus E.
Dubno Herbert
Fox John C.
NPBI Nederlands Produktielaboratorium voor Bloedtransfusieappara
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