Pipe joints or couplings – With assembly means or feature – Handle or handwheel for rotary engagement
Patent
1989-06-21
1990-07-17
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Handle or handwheel for rotary engagement
285 39, 2853822, F16L 3500
Patent
active
049416901
ABSTRACT:
A reusable two-part tubing clamp made of stainless steel has a plurality of circumferentially continuous knife edges that deform the joined tubes to form a series of seals along the length of the tubes. A tab on each side of the clamp extends inwardly so that the generally circular area inside the clamp has two flattened sides. The two parts of the clamp are drawn together by tightening combination wing-square nuts onto separate Allen-head screws which pass through holes in each of the two clamp parts.
REFERENCES:
patent: 1604211 (1926-10-01), Williams
patent: 2190419 (1940-02-01), Evarts
patent: 2719345 (1955-10-01), Riker
patent: 3984134 (1976-10-01), Engman et al.
patent: 4147384 (1979-04-01), Heckethorn
patent: 4388749 (1983-06-01), Sassak
patent: 4426761 (1984-01-01), Sassak
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