Pipe joints or couplings – Pipe to discreet nipple or sleeve to plate – Pipe to nipple connection dependent on nipple to plate...
Patent
1974-10-07
1976-04-20
Arola, Dave W.
Pipe joints or couplings
Pipe to discreet nipple or sleeve to plate
Pipe to nipple connection dependent on nipple to plate...
285336, 285365, 285368, 285423, 285DIG4, F16L 3900
Patent
active
039514390
ABSTRACT:
A modular assembly for constructing conduits of the type used for underground telephone lines, electrical lines, and the like. The specification discloses several embodiments each of which generally comprises a plurality of side-by-side corrugated plastic tubing sections. These sections are provided with laterally extending means which engage to prevent relative longitudinal movement between adjacent sections. Preferably, longitudinally spaced and circumferentially extending wrapping or binding members encircle the assembled section to prevent relative movement between the sections in the lateral direction. The specification and drawings also disclose several forms of joints for connecting aligned assemblies. In the preferred form, the joints include resilient foam members having spaced openings for receiving the aligned ends of the tubes in successive sections. Additionally, clamp means are provided for drawing the sections together to compress the foam members.
REFERENCES:
patent: 899623 (1908-09-01), Royer
patent: 2563366 (1951-08-01), Raymond
patent: 3305249 (1967-02-01), Zahuranec
patent: 3501179 (1970-03-01), Boynton
patent: 3588150 (1971-06-01), Wold
patent: 3747632 (1973-07-01), Kok
Arola Dave W.
Hancor, Inc.
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