Pipe joints or couplings – Temperature responsive joint element; e.g. – shrunk fit – Memory plastic element
Patent
1973-12-13
1976-01-20
Schroeder, Werner H.
Pipe joints or couplings
Temperature responsive joint element; e.g., shrunk fit
Memory plastic element
285137R, F16L 4700
Patent
active
039333795
ABSTRACT:
The present invention concerns a separable coupling between two tubes.
According to the invention, a tube of a thermoplastic material which dilates under the action of heat and which retains its dilated form after cooling, is used as first tube, the extremity of the first tube is introduced in a sleeve of an elastomer material, which has an internal diameter at most equal to the external diameter of the second tube and which is inserted in a rigid hollow cylindrical body, provided at least at the end of the introduction of the first tube with an abutment for the sleeve, and the extremity of the first tube introduced in the sleeve is heated to dilate this extremity.
REFERENCES:
patent: 1677221 (1928-07-01), Wertheimer
patent: 3382121 (1968-05-01), Sherlock
patent: 3453007 (1969-07-01), Roland
patent: 3634924 (1972-01-01), Blake
Nerbun Peter
Schroeder Werner H.
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