Pumps – Motor driven – Electric or magnetic motor
Patent
1987-08-14
1989-03-28
Croyle, Carlton R.
Pumps
Motor driven
Electric or magnetic motor
310 14, 318135, F04B 1704
Patent
active
048159492
ABSTRACT:
A reciprocating electric motor for wells includes a stator comprising a stack of coil groups surmounted by an annular power pack, the whole being mounted on a non-ferromagnetic tube and potted and slipped into a tubular ferromagnetic housing, the coils being helically wound strips of conductive material with their outer ends folded down to extend paraxially and their inner ends folded radially thereacross and then down paraxially to provide connections between like coils in each group forming a plurality of sets for simultaneous energization, and an armature extending through the stator coils and annular power pack for reciprocation therewithin, the armature including alternating ferromagnetic and non-ferromagnetic sections.
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patent: 4548552 (1985-10-01), Holm
patent: 4562385 (1985-12-01), Rabson
Croyle Carlton R.
Robinson Murray
Walnoha Leonard P.
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