Communications: electrical – Condition responsive indicating system – With particular coupling link
Reexamination Certificate
2008-10-28
2011-10-11
Tweel, Jr., John A (Department: 2612)
Communications: electrical
Condition responsive indicating system
With particular coupling link
C455S127100
Reexamination Certificate
active
08035507
ABSTRACT:
Stimulating power line carrier injection with reactive oscillation comprises exciting a tank circuit to oscillate at the carrier frequency by sinking pulses of current between one node of a capacitor in the tank circuit and the other node of the capacitor. A power transformer is connected to a distribution system to inject a power line carrier onto the power line. An excitation circuit sinks short pulses of current between one node of a capacitor and the other node of the capacitor that is connected in a tank circuit arrangement with an inductor and the secondary winding of the power transformer. The tank circuit oscillates at the frequency of the excitation pulses if the resonant frequency of the tank circuit is close to the frequency of excitation. The oscillating current is coupled onto the power line system through the power transformer. The phase of the power line carrier signal is shifted by shifting the phase of the excitation pulses.
REFERENCES:
patent: 2342787 (1944-02-01), Brown
patent: 2883459 (1959-04-01), Roy
patent: 2936367 (1960-05-01), Kobetich et al.
patent: 3495217 (1970-02-01), Brooks
patent: 4204194 (1980-05-01), Bogacki
patent: 4270206 (1981-05-01), Hughes
patent: 4323882 (1982-04-01), Gajjar
patent: 4355303 (1982-10-01), Phillips et al.
patent: 4399547 (1983-08-01), Moore et al.
patent: 4451853 (1984-05-01), Moriguchi et al.
patent: 4746897 (1988-05-01), Shuey
patent: 5005187 (1991-04-01), Thompson
patent: 5241283 (1993-08-01), Sutterlin
patent: 5349644 (1994-09-01), Massey et al.
patent: 5475360 (1995-12-01), Guidette et al.
patent: 5519622 (1996-05-01), Chasek
patent: 5570085 (1996-10-01), Bertsch
patent: 5585777 (1996-12-01), Johnson et al.
patent: 5610552 (1997-03-01), Schlesinger et al.
patent: 5694108 (1997-12-01), Shuey
patent: 5731745 (1998-03-01), Parham
patent: 5818821 (1998-10-01), Schurig
patent: 5842032 (1998-11-01), Bertsch
patent: 5842977 (1998-12-01), Lesho et al.
patent: 5933073 (1999-08-01), Shuey
patent: 5938757 (1999-08-01), Bertsch
patent: 5970127 (1999-10-01), Smith et al.
patent: 5978371 (1999-11-01), Mason, Jr. et al.
patent: 6055435 (2000-04-01), Smith et al.
patent: 6107912 (2000-08-01), Bullock et al.
patent: 6122492 (2000-09-01), Sears
patent: 6243571 (2001-06-01), Bullock et al.
patent: 6246868 (2001-06-01), Bullock et al.
patent: 6275922 (2001-08-01), Bertsch
patent: 6357243 (2002-03-01), Efron et al.
patent: 6831551 (2004-12-01), Davenport et al.
patent: 6933835 (2005-08-01), Kline
patent: 6950567 (2005-09-01), Kline
patent: 6958680 (2005-10-01), Kline
patent: 6965302 (2005-11-01), Mollenkopf et al.
patent: 6965303 (2005-11-01), Mollenkopf
patent: 6977578 (2005-12-01), Kline
patent: 6980089 (2005-12-01), Kline
patent: 6980090 (2005-12-01), Mollenkopf
patent: 6980091 (2005-12-01), White, II et al.
patent: 6982611 (2006-01-01), Cope
patent: 6998962 (2006-02-01), Cope et al.
patent: 7042351 (2006-05-01), Kline
patent: 7046124 (2006-05-01), Cope et al.
patent: 7053756 (2006-05-01), Mollenkopf et al.
patent: 7064654 (2006-06-01), Berkman et al.
patent: 7069091 (2006-06-01), Williamson
patent: 7075414 (2006-07-01), Giannini et al.
patent: 7076378 (2006-07-01), Huebner
patent: 7102478 (2006-09-01), Pridmore, Jr. et al.
patent: 7103240 (2006-09-01), Kline
patent: 7113134 (2006-09-01), Berkman
patent: 7129872 (2006-10-01), Qvortrup et al.
patent: 7132819 (2006-11-01), Cope et al.
patent: 7151968 (2006-12-01), Williamson
patent: 7170394 (2007-01-01), Chandler et al.
patent: 7199699 (2007-04-01), Gidge
patent: 7218219 (2007-05-01), Kline
patent: 7221702 (2007-05-01), Olson et al.
patent: 7224243 (2007-05-01), Cope
patent: 7245201 (2007-07-01), Kline et al.
patent: 7245212 (2007-07-01), Cope et al.
patent: 7245472 (2007-07-01), Davidow
patent: 7248148 (2007-07-01), Kline et al.
patent: 7250848 (2007-07-01), White, II
patent: 7301440 (2007-11-01), Mollenkopf
patent: 7307511 (2007-12-01), Kline
patent: 7307512 (2007-12-01), Yaney et al.
patent: 7308103 (2007-12-01), Corcoran et al.
patent: RE40620 (2009-01-01), Elder et al.
patent: 7528503 (2009-05-01), Rognli et al.
patent: 2007/0299562 (2007-12-01), Kates
patent: 2008/0255782 (2008-10-01), Bilac et al.
patent: 2010/0102937 (2010-04-01), Swenson et al.
International Search Report, Mailed Sep. 21, 2010, for Related PCT Application No. PCT/US2010/043819, 2 pages.
Allmaras Kevin Charles
Boeshans Brian Frederick
Swenson Chad Nicholas
Walter Jesse Jon
Cooper Technologies Company
King & Spalding LLP
Tweel, Jr. John A
LandOfFree
Method and apparatus for stimulating power line carrier... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for stimulating power line carrier..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for stimulating power line carrier... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4269464