Pipe joints or couplings – With assembly means or feature – Handle or handwheel for rotary engagement
Patent
1979-10-04
1983-01-25
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Handle or handwheel for rotary engagement
128247, 285177, 285272, 285423, 285179, F16L 3500
Patent
active
043699910
ABSTRACT:
An improved connector is disclosed for coupling the output breathing circuit connection from a conventional anesthesiology machine to the open proximal end of a conventional endotracheal tube. The connector includes a cylindrical input section, a central flange portion, a cylindrical output section, and a bore extending concentrically therethrough. The input section is provided with a stepped outer cylindrical surface for coupling to the breathing circuit connection. The flange portion is provided with sides or faces to facilitate manual gripping of the connector between the thumb and fingers. Openings are provided through a part of the flange portion to permit the connector to be physically tied to the breathing circuit connection. The inner cylindrical wall of the bore of the cylindrical output section is provided with a narrow ridge or annular ring projecting radially inward. The connector is installed upon the endotracheal tube by rotatably sliding the cylindrical output section over the outer cylindrical surface of the open proximal end of the endotracheal tube. The narrow ridge or annular ring presses into the outer surface of the endotracheal tube to form an airtight seal between the connector and the endotracheal tube. The connector is rotatable in its installed position upon the endotracheal tube in a swivel-like manner without physical movement of the endotracheal tube and without loss of the airtight seal.
REFERENCES:
patent: 195311 (1877-09-01), Sterling
patent: 1910706 (1933-05-01), Malzard
patent: 2577045 (1951-12-01), Stout
patent: 2641253 (1953-06-01), Engelder
patent: 3129020 (1964-04-01), Bujnowski
patent: 3552778 (1971-01-01), Muller
patent: 3912795 (1975-10-01), Jackson
patent: 3938834 (1976-02-01), Oostenbrink
patent: 3997195 (1976-12-01), Bartholomew
patent: 4152017 (1979-05-01), Abramson
Arola Dave W.
Spencer B. F.
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