Electricity: circuit makers and breakers – Multiple circuit control – Pivoted contact
Reexamination Certificate
2005-11-22
2005-11-22
Lee, K. Richard (Department: 2832)
Electricity: circuit makers and breakers
Multiple circuit control
Pivoted contact
C200S004000, C200S018000, C345S157000, C074S47100R
Reexamination Certificate
active
06967293
ABSTRACT:
The present invention is a roller construction module having an error prevention structure, comprising a base; a roller disposed in said base; two terminals at two opposite ends of the base to be electrically connected with a metal ring in the roller; a first and a second plungers on the bottom surface of the base; a post between the first and the second plungers; a third plunger on the position at the opposite side to the post on the bottom surface; and a first and a second protecting rods at two opposite ends near the third plunger. Based on the above-said structure, the switch at the left or the right side of the roller construction module can be respectively activated, and another switch, at the middle area of the mobile device, can be prevented from being activated simultaneously so that error prevention is achieved.
REFERENCES:
patent: 5290977 (1994-03-01), Huang
patent: 5491311 (1996-02-01), Muscat et al.
patent: 6333473 (2001-12-01), Sawada et al.
patent: 6388212 (2002-05-01), Ishihara et al.
patent: 6717572 (2004-04-01), Chou et al.
Chen Li-Sen
Hsu Chien-Yu
Li Chang-Yi
Lee K. Richard
Speed Tech Corp.
Troxell Law Office PLLC
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