Pipe coupling

Details Pipe coupling Pipe coupling

1981-11-06

1984-09-25

Arola, Dave W.

Pipe joints or couplings

Packed

Sleeve

285330, F16L 1704

Patent

active

044732465

ABSTRACT:
An extruded metal pipe coupling for coupling end-to-end aligned pipes comprises a main body forming a coupling band terminating in opposed connecting flanges directed radially outwardly of the main body. Fasteneras pass through apertures in the connecting flanges and are tightened to draw the connecting flanges together. The free edges of the connecting flanges have abutment surfaces which abut each other upon tightening of the fasteners to provide a fulcrum about which continued tightening is effective to impart increased tensioning to the main body. The abutment surfaces roll or slide with respect to one another. The coupling is useful in conjunction with other elements for imparting leak resistance to the coupling joint.

REFERENCES:
patent: 812162 (1906-02-01), Bemis
patent: 2227551 (1941-01-01), Morris
patent: 2778661 (1957-01-01), Leighton
patent: 3527484 (1970-09-01), Walkden
patent: 3834744 (1974-09-01), Masatchi
patent: 4142743 (1979-03-01), McGowen
patent: 4165109 (1979-08-01), Foti
patent: 4312526 (1982-01-01), Cassel

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