Pipe joints or couplings – Both members pliable and nonmetal
Patent
1980-03-24
1981-12-22
Callaghan, Thomas F.
Pipe joints or couplings
Both members pliable and nonmetal
285396, 285402, F16L 3100
Patent
active
043067433
ABSTRACT:
An improved connector arrangement for breathing circuit endotracheal tubes or the like in which one tube end is inserted into the other tube end. A secure connection is provided by means of a lug, groove and slot arrangement on the adjacent surfaces. When the tubes are moved axially together a lug protruding from one of the surfaces is engaged by a slot in the other and slides along the slot to a circumferential groove, thereby securing the two tubes together so that one can still be moved radially with respect to the other but not be disconnected by an inadvertent force exerted in an axial direction. A quick disconnect capability is provided by having the distance to the groove from the end of the tube along one side of the slot be less than that along the other side of the slot.
Rotation of one tube relative to the other in the appropriate direction accompanied by the application of a slight axial pulling force will cause the lug to strike the longer of the two slot walls thereby enabling a quick separation of the two tubes to be made by the subsequent application of an axial pulling force.
REFERENCES:
patent: 788200 (1905-04-01), Finch
patent: 1002264 (1911-09-01), Gribben
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patent: 1130726 (1915-03-01), Greve
patent: 1281307 (1918-10-01), Dow et al.
patent: 2580725 (1952-01-01), Breckenridge
patent: 3098667 (1963-07-01), Greenwood
patent: 3701548 (1972-10-01), McGuire
patent: 3876234 (1975-04-01), Harms
Heyman Arnold M.
Hinshaw William E.
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