Wells – Screens – Stacked annular sections
Patent
1992-06-11
1993-10-05
Dang, Hoang C.
Wells
Screens
Stacked annular sections
210488, E21B 4308
Patent
active
052496260
ABSTRACT:
A well strainer is provided which includes a plurality of stacked, annular, filter segments with each segment including a plurality of elongate, arcuate, threaded rod receiving slots, ramped bearing surfaces near each slot, and position indicators in the vicinity of the ramped bearing surfaces and slots. The gap between adjacent annular filter segments is selected by rotating one segment relative to another to a desired position whereat indicator points are received within respective indicator sockets. Guide members adjacent the ramped bearing surfaces help to keep adjacent filter segments in true superimposed relation. Once the well strainer has been assembled by stacking each of the annular filter segments, one on top of the other in superimposed relation along a common longitudinal axis and securing the stack together by a plurality of threaded rods which extend along the length of the stack, adjustments in the gaps between adjacent filter segments can be made by simply loosening the nuts at one end of the stack to allow the indicator points of one segment to be lifted out of the indicator sockets of an adjacent segment and to relieve the bearing pressure between adjacent segments so that one segment can be rotated relative to another. There is no need to completely disassemble the well strainer in order to adjust the gap between adjacent filter segments.
REFERENCES:
patent: 1705848 (1929-03-01), Austin
patent: 1778371 (1930-10-01), Patton
patent: 2004071 (1935-06-01), Hannesschlager
patent: 2159196 (1939-05-01), Babitch
patent: 2746552 (1956-05-01), Grospas
patent: 3568842 (1971-03-01), Bozek
patent: 3601192 (1971-08-01), Layne
patent: 3822744 (1974-07-01), Reijonen et al.
patent: 4133768 (1978-03-01), Theriot
patent: 4752394 (1988-06-01), McKenzie et al.
patent: 5046892 (1991-09-01), Kothmann
patent: 5100550 (1992-03-01), Brulhart
patent: 5122271 (1992-06-01), Simon et al.
Alexander Daniel R.
Dang Hoang C.
Keegan Robert R.
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