Solenoid actuator and method for making and using same

Details Solenoid actuator and method for making and using same Solenoid actuator and method for making and using same

2011-01-18

2011-01-18

Barrera, Ramon M (Department: 2832)

Valves and valve actuation

Electrically actuated valve

Including solenoid

C335S255000, C335S262000, C335S278000, C335S279000

Reexamination Certificate

active

07871060

ABSTRACT:
A solenoid actuator includes a generally cylindrical armature captured to a generally annular coil tube by means of interference geometry. A major portion of the coil tube has a first inside diameter and a second portion of the coil tube has a second, smaller inside diameter. A first portion of the armature has an outside diameter corresponding to the inside diameter of the first portion of the coil tube, and a second portion of the armature has an outside diameter corresponding to the inside diameter of the second portion of the coil tube. The armature is inserted within the coil tube such that the second portion of the armature is free to slide through the second end of the coil tube. A coil tube end closure, for example, a plug, is joined to the first portion of the coil tube. An O-ring provides a seal between the end closure and the tube. A wound electromagnetic coil surrounds the coil tube and can be selectively energized to displace the armature.

REFERENCES:
patent: 3462116 (1969-08-01), Wright, Jr.
patent: 4679017 (1987-07-01), Mishler et al.
patent: 5523684 (1996-06-01), Zimmermann
patent: 2001/0033214 (2001-10-01), Bircan
PCT Search Report Dated Feb. 5, 2007.

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