Plastic and nonmetallic article shaping or treating: processes – Forming electrical articles by shaping electroconductive...
Patent
1991-11-29
1993-09-07
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Forming electrical articles by shaping electroconductive...
264250, 26427211, 26427215, 264275, B29C 3904, B29C 6902
Patent
active
052426424
ABSTRACT:
A switch substrate for a switching device that includes an electrical contact brush, the substrate formed with alternating conductive and insulating portions on its surface and having a groove formed between the conductive and insulating portions to eliminate insulating abrasion powder from the surface of the contact brush. The top of the conducting portions is higher than the bottom of the groove but can be above or below the surface of the insulating portions. To form such a substrate, a conductive layer having projections is formed and is engaged with a mold so that the projections are compressed. After the substrate is removed from the mold, the compressed projections extend to their actual height.
Iijima Shunichi
Takemura Masanori
Blum Kaplan
Ortiz Angela
Seiko Epson Corporation
Silbaugh Jan H.
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