Electricity: circuit makers and breakers – Electric switch details – Indicators
Reexamination Certificate
2011-07-26
2011-07-26
Friedhofer, Michael A (Department: 2833)
Electricity: circuit makers and breakers
Electric switch details
Indicators
C200S400000
Reexamination Certificate
active
07985936
ABSTRACT:
Disclosed is an apparatus for indicating a closing operable state for an air circuit breaker and an air circuit breaker having the same. The apparatus for indicating a closing operable state for the air circuit breaker comprises a micro switch installed at a switching mechanism providing a driving force for switching contactors, provided with a lever extended into the switching mechanism so as to receive the driving force, generating and outputting an electric signal for indicating that the air circuit breaker is in a closing operable state, and provided with a signal transmitting terminal for transmitting the electric signal to a remote place, and an on coupling pressing the lever of the micro switch so that the micro switch generates and outputs the electric signal only when a closing spring for providing elastic energy for switching the contactors charges elastic energy and the air circuit breaker is opened.
REFERENCES:
patent: 4409449 (1983-10-01), Takano et al.
patent: 4475021 (1984-10-01), Mochizuki et al.
patent: 4529951 (1985-07-01), Youichi et al.
patent: 4760226 (1988-07-01), Fasano
patent: 5140115 (1992-08-01), Morris
patent: 5418343 (1995-05-01), Faber et al.
patent: 5485134 (1996-01-01), Seymour et al.
patent: 5936535 (1999-08-01), Rosen et al.
patent: 5986225 (1999-11-01), Castonguay et al.
patent: 6166343 (2000-12-01), Blessitt et al.
patent: 6242703 (2001-06-01), Castonguay et al.
patent: 6788172 (2004-09-01), Godesa et al.
patent: 2008/0087534 (2008-04-01), Yang et al.
patent: 2008/0088395 (2008-04-01), Seo
patent: 2008/0088396 (2008-04-01), Ahn et al.
patent: 2008/0122563 (2008-05-01), Song
patent: 2008/0157906 (2008-07-01), Oh
patent: 0362846 (1990-04-01), None
patent: 2699324 (1994-06-01), None
patent: 55-108118 (1980-08-01), None
patent: 5-128943 (1993-05-01), None
patent: 7-130251 (1995-05-01), None
patent: 7-335061 (1995-12-01), None
patent: 10-199377 (1998-07-01), None
patent: 2001-143578 (2001-05-01), None
patent: 2009-21249 (2009-01-01), None
patent: 2257636 (2005-07-01), None
patent: 2006111708 (2006-08-01), None
English language Abstract of RU 2006111708, Aug. 27, 2006.
English language Abstract of RU 2257636, Jul. 27, 2005.
U.S. Appl. No. 12/144,793 to Lyu, filed Jun. 24, 2008.
U.S. Appl. No. 12/146,702 to Park, filed Jun. 26, 2008.
U.S. Appl. No. 12/147,698 to Yang, filed Jun. 27, 2008.
U.S. Appl. No. 12/163,002 to Sohn, filed Jun. 27, 2008.
U.S. Appl. No. 12/164,296 to Ahn, filed Jun. 30, 2008.
U.S. Appl. No. 12/165,789 to Kim et al., filed Jul. 1, 2008.
Friedhofer Michael A
Greenblum & Bernstein P.L.C.
LS Industrial Systems Co., Ltd.
LandOfFree
Apparatus for indicating closing operable state for air... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for indicating closing operable state for air..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for indicating closing operable state for air... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2669492