Inductive proximity sensor and method of assembling the same

Details Inductive proximity sensor and method of assembling the same Inductive proximity sensor and method of assembling the same

2007-01-30

2007-01-30

Enad, Elvin (Department: 2832)

Inductor devices

Coil or coil turn supports or spacers

Coil on a preformed support or mount

Reexamination Certificate

active

10991710

ABSTRACT:
An inductive proximity sensor comprises: a housing including an opening on one side; an inductive core including two legs, each core leg including a foot portion; an inductive coil wound bobbin disposed about each leg of the core, each bobbin including an integral ledge cantilevered from an inside surface of the bobbin for forming a pocket under the integral ledge at a bottom of the bobbin for containing the foot portion of the corresponding core leg; a thruster element including a top surface and two legs, each thruster leg disposed into a respective bobbin resting on the integral ledge thereof, the core, wound bobbins and thruster element disposed in the housing; a spring element disposed on the top surface of the thruster element at the housing opening; and a housing cover disposed over the housing opening for compressing the spring element against the thruster element which renders the core and wound bobbins in a fixed relationship to each other in the housing. Also disclosed is a method of assembling the proximity sensor.

REFERENCES:
patent: 3327264 (1967-06-01), Rodaway
patent: 3546399 (1970-12-01), Kuehn et al.
patent: 3564542 (1971-02-01), Arai
patent: 4394636 (1983-07-01), Hiraku et al.
patent: 5659246 (1997-08-01), Togo et al.
patent: 6927660 (2005-08-01), Okamoto
patent: 2003/0080844 (2003-05-01), Nishikawa et al.

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