Solenoid drive apparatus for an external infusion pump

Details Solenoid drive apparatus for an external infusion pump Solenoid drive apparatus for an external infusion pump

1984-01-06

1986-01-07

Yuen, Henry C.

Machine element or mechanism

Mechanical movements

74128, F16H 2702

Patent

active

045627517

ABSTRACT:
A solenoid drive apparatus for driving a lead screw of an External Infusion Pump (1) having a housing (302), solenoid winding (356) within the housing (302), a solenoid armature (358) which is driven by the field of the solenoid winding (356), push rod (362) which is driven by the armature (358), pawn (314) which is driven by push rod (362), a first pawl (320) which is driven by pawn (314) and a second pawl (326) which is an antibacklash device, a ratchet wheel (318) having teeth (319) around its periphery and engaged by the first pawl (320) and the second pawl (326) and the drive shaft (316) which is drawn by the ratchet of the ratchet wheel (318).

REFERENCES:
patent: 2222217 (1940-11-01), Solinski
patent: 2682004 (1954-06-01), Schulenburg
patent: 2868026 (1959-01-01), Finehout et al.
patent: 3101013 (1963-08-01), Ayers et al.
patent: 3186246 (1965-06-01), Slinker
patent: 3745843 (1973-07-01), Hetzel
patent: 4036476 (1977-07-01), Douce et al.
patent: 4206658 (1980-06-01), Herr
patent: 4372181 (1983-02-01), Tinsley
patent: 4403523 (1983-09-01), Seger
patent: 4480510 (1984-11-01), Aparicio, Jr. et al.

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