Pipe joints or couplings – With assembly means or feature – Thread-cutting means
Patent
1992-07-06
1993-08-31
Arola, Dave W.
Pipe joints or couplings
With assembly means or feature
Thread-cutting means
285 92, 285 93, 285175, 285251, F16L 3500
Patent
active
052402916
ABSTRACT:
A novel coupler for use in sanitary transport of material which includes a female piece having a first end and a second end, the first end having an inner threaded surface defining an opening therein to receive an end of a hose, the second end having an inner threaded surface defining an opening adjacent and coaxial with the opening of first end to form a passageway along a central axis of the female piece allowing communication through the female piece, wherein the threaded surface of the first end has a relatively thin razor-like edge which extends diagonally inwardly toward the central axis and the second. A hollow male piece is provided having a tapered first end, an intermediate portion, and a second end. The intermediate portion has a portion of its outer surface threaded in a complimentary manner to the threaded opening of the second end of the female piece to allow receipt of the male piece therein. A shoulder extends radially outward from the intermediate portion and means for sealing between the shoulder and the second end of the female piece are provided when the male piece is threadedly connected to the female piece.
REFERENCES:
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patent: 4909545 (1990-03-01), Hohol
Sani-Tech Brochure-1992.
Arola Dave W.
Graham R. William
Muir H. Stanley
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