Registers – Systems controlled by data bearing records
Reexamination Certificate
2007-04-05
2010-06-22
Labaze, Edwyn (Department: 2887)
Registers
Systems controlled by data bearing records
C200S520000, C200S406000
Reexamination Certificate
active
07740166
ABSTRACT:
A push switch includes a lower case having a recess therein, an inner and outer fixed contacts exposing from a bottom of the recess, a movable contact accommodated in the recess, an upper case attached to the lower case, an elastic operation body for sealing the recess of the lower case, and a push button provided on the elastic operation body. The movable contact has a dome shape having a concave surface facing the inner fixed contact by a distance, a convex surface opposite to the concave surface, and an outer peripheral end placed on the outer fixed contact. The upper case has a through-hole located above the recess of the lower case. The has a lower surface contacting the convex surface of the movable contact, an upper surface opposite to the lower surface, and an outer edge held between the upper case and the lower case while being compressed. The push button is inserted into the through-hole of the upper case movably. This push switch prevents dust from entering in the switch and operates reliably.
REFERENCES:
patent: 5199557 (1993-04-01), Brandt et al.
patent: 5772010 (1998-06-01), Watanabe et al.
patent: 2003/0213686 (2003-11-01), Takeuchi et al.
patent: 9-147666 (1997-06-01), None
Labaze Edwyn
Panasonic Corporation
RatnerPrestia
LandOfFree
Push switch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Push switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Push switch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4151505