Filament wound well screen and method and apparatus for making s

Details Filament wound well screen and method and apparatus for making s Filament wound well screen and method and apparatus for making s

1981-03-16

1983-03-29

Spear, Jr., Frank A.

Liquid purification or separation

Filter

Pipe or plate attached type

156175, 166231, 2104971, B31C 1300, E21B 4308

Patent

active

043782949

ABSTRACT:
A fiber reinforced plastic well screen including a slotted central section and unslotted end fitting portions is formed by manipulating a single bundle of resin-coated filaments longitudinally and circumferentially relative to a mandrel. The mandrel has a series of helically grooved segments which cooperate with each other to cause the filament bundle to form the slotted central section. Longitudinal wraps, which are looped under tension from one end of the mandrel to the other in the region between each adjacent pair of segments, are intimately bonded to all of the helical circumferential wraps which form the central section as well as those that form the end fitting portions. One removable end cap portion of the mandrel is preferably externally threaded to produce an integral internal thread in the formed well screen. A tubular internal sleeve portion of the mandrel is removable to permit the helically grooved segments to be collapsed inwardly after the well screen is cured.

REFERENCES:
patent: 2341783 (1944-02-01), Jens
patent: 2487769 (1949-11-01), Ebert et al.
patent: 2658128 (1972-04-01), Shobert
patent: 2682309 (1954-06-01), Banchback
patent: 3385373 (1968-05-01), Brown
patent: 3398837 (1968-08-01), Adams
patent: 3864182 (1975-02-01), Shobert et al.

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