Duct assembly for rotor-powered mobile sprinkler

Details Duct assembly for rotor-powered mobile sprinkler Duct assembly for rotor-powered mobile sprinkler

1979-04-27

1981-06-30

Cline, William R.

Fluid handling

Systems

Plural noncommunicating flow paths

137596, 251 6, 251 9, 138141, 138DIG11, F16L 5514

Patent

active

042757614

ABSTRACT:
A mobile sprinkler propelled by water pressure has a bellows coupled with a ratchet drive, water being alternately admitted to the bellows under pressure via one conduit and discharged therefrom via another conduit forming part of a squeeze-duct assembly. The assembly includes a rigid housing against whose sidewalls the two conduits are alternately flattened by a rotating valve body coupled with the ratchet drive, each conduit being of substantially O-shaped cross-section in its uncompressed state and consisting of a relatively thick-walled inner tube of elastomeric material, a relatively thin-walled intermediate tube of flexible synthetic-resin fabric and a relatively thin-walled outer tube also made of elastomeric material.

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patent: 4102612 (1978-07-01), Ritter
patent: 4131399 (1978-12-01), Calvet

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