Irrigation gravel guard

Details Irrigation gravel guard Irrigation gravel guard

1974-09-12

1977-11-15

Taylor, Dennis L.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

61 13, 210445, E02B 1300

Patent

active

040579689

ABSTRACT:
An irrigation gravel guard is disclosed comprising a ring shaped support having a substantially conical shaped screen means secured thereto and extending therefrom. One end of the screen means is open and is secured to the ring shaped support by welding or the like. The other end of the screen means is rolled or crimped upon itself to substantially close the other end thereof except for the perforations extending therethrough. An extension screen for use with the gravel guard is also disclosed and comprises a pair of spaced apart ring shaped supports having a truncated conical shaped screen means secured thereto and extending therebetween. The extension may be welded to the end of the gravel guard so as to effectively increase the over-all length thereof.

REFERENCES:
patent: 565890 (1896-08-01), Fowler
patent: 680096 (1901-08-01), West
patent: 1165137 (1915-12-01), Smith
patent: 1704634 (1929-03-01), Snider
patent: 1768310 (1930-06-01), Erickson
patent: 2370668 (1945-03-01), Johnson
patent: 2384057 (1945-09-01), Wetherell
patent: 2515600 (1950-07-01), Hayes
patent: 2530283 (1950-11-01), Brown
patent: 2835391 (1958-05-01), Bottum
patent: 3794180 (1974-02-01), Blocker

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