Pipe joints or couplings – Irrigation type
Patent
1975-02-27
1976-12-14
Machado, Reinaldo P.
Pipe joints or couplings
Irrigation type
285226, B05B 1500
Patent
active
039971929
ABSTRACT:
A universal coupling for irrigation pipes that are incorporated into continuously movable land surface irrigation systems may incorporate pipe sections having extremities that are adapted to be positioned one within the other. A connector projection extends from one of the pipe sections and is adapted to be received within a connection aperture defined in the opposite one of the pipe sections upon assembly of the pipe sections. The coupling has a load bearing capability which is promoted by one of the extremities of each one of the pipe sections being supported directly by a mobile tower which the opposite extremity thereof bears upon the supported extremity of the adjacent pipe section, thereby causing both of the pipe sections to be supported one relative to the other. At least one of the extremities of one of the pipe sections is formed to allow substantially vertical movement of the opposite pipe section during assembly and disassembly thereof. A bearing and positioning element is adapted to be interposed between the pipe sections to establish proper positioning of the pipe sections in the assembled condition thereof and to prevent wear during relative movement of the pipe sections. Sealing of the pipe sections may be established by means of a flexible fluid impervious boot positioned about the joint between the pipe sections and secured in sealed relation to each of the pipe sections.
REFERENCES:
patent: 2270089 (1942-01-01), Stout
patent: 2442034 (1948-05-01), Busch
patent: 2573366 (1951-10-01), Scholl
patent: 2591531 (1952-04-01), Fishback
patent: 3162469 (1964-12-01), Shohan
patent: 3331620 (1967-07-01), Bickard
patent: 3851659 (1974-12-01), Zimmerer et al.
Gifford-Hill & Company, Inc.
Machado Reinaldo P.
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