Push-type coupling and conduit pipe assembly

Details Push-type coupling and conduit pipe assembly Push-type coupling and conduit pipe assembly

1975-05-02

1977-05-17

Callaghan, Thomas F.

Pipe joints or couplings

Flexible joint, rigid members

Resilient sleeve type

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

Patent

active

040238342

ABSTRACT:
Lengths of pipe are joined together in above- or below-ground telephone conduit systems by flexible sleeves having specified coefficient of friction, column expansibility and pull-out resistance and containing helically oriented high modulus reinforcement, bonded or encapsulated in elastomeric material. The resultant pipe assemblies represent a significant improvement over previously known cemented conduit-coupling arrangements. Pipe sections may be quickly and economically joined without field application of adhesive, to provide water-tight, pull-out-resistant joints which will accomodate significant bending moments and shearing forces.

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: 3558164 (1971-01-01), Havell

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