Flexible expansion joint

Details Flexible expansion joint Flexible expansion joint

1978-11-02

1980-12-23

Callaghan, Thomas F.

Pipe joints or couplings

Flexible joint, rigid members

Resilient sleeve type

F16L 2100

Patent

active

042406536

ABSTRACT:
Flexible expansion joints utilized for coupling conduit pipes or pipelines for conveyance, supply, service and drainage of service water, sewage, industrial water, etc. are provided, which comprise a tubular flexible body portion and two side joint portions. The tubular flexible body portion comprises bias cord reinforcement layer(s) provided circumferentially at a "cord angle" of 10.degree. to 45.degree.. Alternatively, it may further comprise circumferential cord reinforcement layer(s) circumferentially provided at a "cord angle" of 0.degree. to 25.degree. inside the bias cord reinforcement, and a plurality of coaxial rigid rings. The flexible expansion joints have good pliability, flexibility, vibration absorbing property, internal and external pressure resistance, durability, anti-deformation property and the like.

REFERENCES:
patent: 3051512 (1962-08-01), Cranston
patent: 3087745 (1963-04-01), Rumbell
patent: 3206228 (1965-09-01), Burrell
patent: 3363918 (1968-01-01), Fisher
patent: 3658126 (1972-04-01), Bohlmann, Jr. et al.
patent: 4023834 (1977-05-01), Ewing et al.

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