Conformable thin-wall shear-resistant coupling and pipe assembly

Details Conformable thin-wall shear-resistant coupling and pipe assembly Conformable thin-wall shear-resistant coupling and pipe assembly

1975-05-02

1977-05-17

Callaghan, Thomas F.

Pipe joints or couplings

Flexible joint, rigid members

Resilient sleeve type

24115N, 138130, 156173, 285305, 285DIG16, 403291, F16L 2100

Patent

active

040238350

ABSTRACT:
Lengths of "plain-end" pipe are joined together in underground sewer or drainage systems by flexible sleeves having a specified column expansibility and shear-resistance and containing high modulus helically oriented reinforcement, bonded or encapsulated in elastomeric material. The resultant pipe assemblies represent a significant improvement over previously known "plain-end" pipe-coupling arrangements and bell and spigot pipe assemblies. Pipe sections may be quickly and economically joined without inserting packing, to provide a water-tight, shear-resistant joint which will accomodate significant angular misalignment and circumferential variation. Even if lubricant is placed on the inner surfaces of the flexible sleeves to reduce assembly forces, the resultant pipe assemblies still exhibit more than adequate resistance against shear loads and water infiltration.

REFERENCES:
patent: 839260 (1906-12-01), Benson
patent: 1473362 (1923-11-01), Tilton
patent: 2189987 (1940-02-01), Kellems
patent: 2434358 (1948-01-01), Frank
patent: 2711331 (1955-06-01), Temple
patent: 3186048 (1965-06-01), Tann
patent: 3210100 (1965-10-01), Lowles et al.
patent: 3453006 (1969-07-01), Levake
patent: 3453006 (1969-07-01), Levake
patent: 3558164 (1971-01-01), Havell
patent: 3756631 (1973-09-01), Ross et al.
patent: 3848904 (1974-11-01), Anderson

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