Expansion joint

Details Expansion joint Expansion joint

1974-01-07

1976-01-27

Arola, Dave W.

Pipe joints or couplings

Flexible joint, rigid members

Bellows

285424, F16L 5102

Patent

active

039349055

ABSTRACT:
An expansion joint is described comprising a flexible, metal-free tubular connector having corners and sides, said connector joining the end of adjacent ducts, and with each corner comprising a central section and two expansion sections. As the expansion joint expands and contracts, the central and expansion sections of each corner extend and retract, changing in shape to accommodate the joint movement and to prevent stress concentrations at corners.

REFERENCES:
patent: 2797112 (1957-06-01), Ziebold
patent: 3259405 (1966-07-01), Heller
patent: 3365217 (1968-01-01), Cooper
patent: 3551009 (1970-12-01), Cammuso et al.
patent: 3621542 (1971-11-01), Getchell
patent: 3647247 (1972-03-01), Pintard et al.
patent: 3672707 (1972-06-01), Russo

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