Pipe joints or couplings – With strain relief
Patent
1976-11-24
1978-06-06
Arola, Dave W.
Pipe joints or couplings
With strain relief
285253, 285259, F16L 3500
Patent
active
040932826
ABSTRACT:
A hose clamp utilizing two constricting band type hose clamps which are tied together by means of a strapping arrangement includes one clamp which surrounds the hose itself and is provided with protuberances which press into the outer surface of the hose to provide a strong gripping function which prevents the hose from moving with respect to this clamp while at the same time engaging the hose in a non-destructive manner. The hose if not grippingly interengaged with the clamp would under pressure slide out of the clamp and off of the fitting. A second hose clamp is clamped about the rigid fitting to which the hose is attached at a point beyond an enlargement in the fitting, so that this clamp cannot move past the fitting enlargement. The straps connecting the two clamps then prevent the hose from sliding off of the rigid fitting because of the restraint provided by the clamp which is secured beyond the fitting enlargement. Two forms of clamp are disclosed, one form having connecting straps and hose engaging protuberances integral with one of the clamps, and a second form in which the hose engaging protuberances are integral with the connecting straps which are physically separate from the clamps.
REFERENCES:
patent: 366532 (1887-07-01), Tuerk
patent: 393400 (1888-11-01), Sharpneck
patent: 1212817 (1917-01-01), Russell
patent: 1346330 (1920-07-01), Mitchell
patent: 1426086 (1922-08-01), Lowrey
patent: 1477573 (1923-12-01), Lowrey
patent: 1539001 (1925-05-01), Steeple
patent: 2403449 (1946-07-01), Meyer et al.
patent: 2958549 (1960-11-01), Spafford
patent: 2963305 (1960-12-01), Miller
patent: 3174777 (1965-03-01), Lodholm et al.
patent: 3407448 (1968-10-01), Tetzlaff et al.
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