Pipe joints or couplings – Packed – Wedge
Patent
1976-02-19
1978-06-27
Schroeder, Werner H.
Pipe joints or couplings
Packed
Wedge
277207A, 285 39, 285111, 285308, 285379, 285423, F16L 1906
Patent
active
040970760
ABSTRACT:
A fitting piece for connecting rigid or flexible tubes which are made particularly from plastic, the fitting piece having an opening to receive therein the tube and being provided with at least one inwards protruding annular rib having edges, preferably sharp edges, the cross-section of said rib being formed in such a manner that a straight line interconnecting the center point of the basis to the peak of the cross-section is inclined to the axis of the tube-receiving opening by an acute angle with its vertex pointing to the interior of said opening, said fitting piece being characterized in that at least the annular rib and preferably the whole of the fitting piece is made from an elastically deformable plastic material whose coefficient of elasticity amounts to at least 20,000 kgf per cm.sup.2, that the width of the basis of said rib is smaller than the radial extension of the rib, that the rib is divided by radial incisions into segments interconnected to one another, and that there is provided at least one sealing element.
REFERENCES:
patent: 2809853 (1957-10-01), Nathan
patent: 3260540 (1966-07-01), Houot
patent: 3315971 (1967-04-01), Sakurada
patent: 3573871 (1971-04-01), Warner
patent: 3575430 (1971-04-01), Alpine
patent: 3633944 (1972-01-01), Hamburg
patent: 3645547 (1972-02-01), Glover
patent: 3791678 (1974-02-01), De Putter
patent: 3857589 (1974-12-01), Oostenbrink
patent: 3901538 (1975-08-01), Blakely
Svec Alexander
Wackenreuther Helmut
Cohen Moshe I.
Oesterreichische Salen-Kunststoffwerk Gesellschaft m.b.H.
Schroeder Werner H.
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