Electricity: electrothermally or thermally actuated switches – Electrothermally actuated switches – With bimetallic elements
Reexamination Certificate
2007-12-04
2007-12-04
Vortman, Anatoly (Department: 2835)
Electricity: electrothermally or thermally actuated switches
Electrothermally actuated switches
With bimetallic elements
C337S056000, C337S072000, C337S066000
Reexamination Certificate
active
11203635
ABSTRACT:
A safety switch includes a switch member and a push rod is pivotably connected to an inside of the switch member. A biasing member pushes the push rod toward a stop rod extending from the inside of the switch member. A bi-metallic contact plate has a first end fixed to one of two terminals and a contact portion splits from the contact plate. A first contact point is connected to an underside of the contact portion and a second contact point is connected to the other terminal. A free end of the contact portion is connected with a free first end of a spring member and a second end of the spring member is connected to the contact plate. When overloaded, the contact portion and the spring member move clockwise to cut off the circuit while the push rod does not stop the clockwise movement of the spring member.
REFERENCES:
patent: 3932829 (1976-01-01), Ellenberger
patent: 4258349 (1981-03-01), Flory
patent: 4329669 (1982-05-01), Krasser et al.
patent: 4338586 (1982-07-01), Scanlon
patent: 4345233 (1982-08-01), Matthies
patent: 4528538 (1985-07-01), Andersen
patent: 4833439 (1989-05-01), Bowden et al.
patent: 4922219 (1990-05-01), Bakhaus et al.
patent: 5089799 (1992-02-01), Sorenson
patent: 5223813 (1993-06-01), Cambreleng et al.
patent: 5262748 (1993-11-01), Tsung-Mou
patent: 5264817 (1993-11-01), Sorenson
patent: 5491460 (1996-02-01), Krasser et al.
patent: 5539371 (1996-07-01), Yu
patent: 5760672 (1998-06-01), Wang
patent: 5892426 (1999-04-01), Huang
patent: 6275134 (2001-08-01), Chen
patent: 6307460 (2001-10-01), Yu
patent: 6400250 (2002-06-01), Wang
patent: 6445273 (2002-09-01), Yu
patent: 6456185 (2002-09-01), Yu
patent: 6512441 (2003-01-01), Yu
patent: 6525639 (2003-02-01), Cheng
patent: 6552644 (2003-04-01), Yu
patent: 6563414 (2003-05-01), Yu
patent: 6577221 (2003-06-01), Wang
patent: 6617952 (2003-09-01), Yu
patent: 6621402 (2003-09-01), Huang
patent: 6664884 (2003-12-01), Yu
patent: 6674033 (2004-01-01), Wang
patent: 6714116 (2004-03-01), Sang et al.
patent: 6734779 (2004-05-01), Yu
patent: 6788186 (2004-09-01), Yu
patent: 6864453 (2005-03-01), Yu
patent: 6940389 (2005-09-01), Yu
patent: 7030726 (2006-04-01), Yu
patent: 2003/0160679 (2003-08-01), Yu
patent: 2005/0140489 (2005-06-01), Kuo
patent: 2605142 (1988-04-01), None
LandOfFree
Safety switches does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Safety switches, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety switches will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3834147