Plural Relay Or Solenoid Load Selectively Operated Patents (Class 361/191)
  • Patent number: 10423143
    Abstract: Embodiments of an aerobic septic system health monitor, and a method of its use, incorporate a microcontroller, with associated software, in communication with an aerobic septic system (electro-mechanical) controller that, in turn, is connected to at least one aerobic septic system component and component sensor. By using the microcontroller and software, highly specific monitoring and feedback is available to a user. This approach also offers a clear and easily accessible interface between the user and the aerobic septic system, whereas no such interface exists on prior art systems. The monitor also offers multiple redundancy to address system failures, unlike prior art. Finally, it enables several forms of preventative maintenance that simply don't exist in prior art systems. In some embodiments, the monitor may serve as the aerobic septic system controller, either overriding or supplementing the installed controller or replacing it.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: September 24, 2019
    Assignee: Wavetech, LLC
    Inventors: John F. O'Hara, Ethan J. Abele
  • Patent number: 10404382
    Abstract: In order to suppress both large current and arc discharge during hot switching, a grounding circuit includes a first relay, a second relay, and a third relay, a first resistance connected in series with the first relay and is capable of connecting the feeding path to the ground, and a voltage divider connected in series with the second relay and the third relay and is connectable in such a way as to divide voltage between the feeding path and the ground, the third relay being disposed at a point at which the voltage is divided, and when the feeding path is to be connected to the ground, the feeding path is connected to the ground via the first resistance by the first relay, the voltage divider is connected in parallel with the first relay and the first resistance, and a connection to the ground is cut off.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: September 3, 2019
    Assignee: NEC CORPORATION
    Inventor: Yoshinari Takigawa
  • Patent number: 9363867
    Abstract: Methods, apparatuses and systems of an intelligent light controller controlling a light, are disclosed. One method includes interpreting a switch from a normal power supply to an emergency power supply. Upon interpreting the switch from the normal power supply to the emergency power supply, the intelligent light controller controllably powers the light for a predetermined period of time. Further, the intelligent light controller executes an energy-savings behavior control of the light.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: June 7, 2016
    Assignee: enLighted, Inc.
    Inventors: Tanuj Mohan, David Perkins, Premal Ashar
  • Patent number: 9155961
    Abstract: Mobile agents automatically manipulate components such as blocks on a working surface, to perform operations such as construction of generalized structures. The working surface and/or the components can have machine-readable codes to assist the agents in maintaining current knowledge of their respective locations. Agents identify components by type and location, and can move components according to directions; such directions can be provided by a user, or can be based on a pre-programmed directive, or can be determined dynamically based on current conditions or in response to actions of other agents. Agents may cooperate with one another. Agents can also respond to changes in the environment, alterations in works in progress, and/or other conditions, and may be configured to exhibit responses simulating emotional reactions. Different mobile agents can be associated with different character traits, which may be configured to change based on environmental conditions and/or the behavior of other mobile agents.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: October 13, 2015
    Assignee: Anki, Inc.
    Inventors: Hanns Tappeiner, Boris Sofman, Patrick DeNeale
  • Publication number: 20150131191
    Abstract: A branching unit (1) for an optical telecommunication link (100), the unit comprising a first (2), a second (3) and a third terminal (4) for termination of conductors of respective branch cables in use, a fourth terminal (5) for connection to a sea earth (6) in use, and a circuit (8) comprising a plurality of relays comprising at least a first, a second and a third relay associated to respectively the first, second and third terminal, the circuit being structured for connecting together two terminals out of the first, second and third terminal and for connecting the remaining terminal to the fourth terminal, depending on a sequence of power feeding at the first, second and third terminals, in use, wherein the circuit (8) comprises a sea earth circuit (9) terminated at one end to the fourth terminal and a bidirectional triode thyristor (13) placed along the sea earth circuit, a driving circuit (19) being provided for driving the bidirectional triode thyristor so as to trigger the bidirectional triode thyristor
    Type: Application
    Filed: November 13, 2014
    Publication date: May 14, 2015
    Inventors: DANIELE ANDRONI, ALDO RIGHETTI
  • Publication number: 20150109712
    Abstract: An adapter configured to connect a switch device to a data bus, wherein the switch device has a box-like body which houses a switching unit for switching an electric circuit, wherein the adapter includes a case having a first opening and a second opening and an electronic control unit housed in the case and having a first connection element adapted to be connected to the switching unit through the first opening and second connection element adapted to be connected to the data bus through the second opening to convert the electric signals generated by the switching unit into data signals and vice versa.
    Type: Application
    Filed: July 4, 2013
    Publication date: April 23, 2015
    Inventors: Marco Pizzato, Giuseppe Pizzato
  • Publication number: 20150036256
    Abstract: A subsea electrical subsystem and a power distribution utilizing the same. The electrical substation located subsea is electrically connected to AC power provided by a power generator located topside. The electrical substation comprises a plurality of circuit breakers and a circuit breaker operating system associated with each circuit breaker. The circuit breaker operating system is constructed and arranged to operate the associated circuit breaker and is operatively connected to at least one control module. The control modules are electrically connected to a DC power supply located topside.
    Type: Application
    Filed: April 19, 2013
    Publication date: February 5, 2015
    Inventor: John Leslie Baker
  • Patent number: 8754597
    Abstract: A switchgear includes a power supply built into a common housing, and at least two drives. The power supply can be fed by an external supply voltage and an external consumer can be connected to the two drives. In at least one embodiment, the switchgear includes, in the same housing, a built-in overload detection for the two drives and/or a built-in circuit breaker function for the two drives, and/or a built-in control circuit for the common control of the two drives. The switchgear can optionally be completed by a transformer providing an additional function of the targeted charging of a buffer capacitor and/or by an energy accumulator providing an additional function of the targeted discharge thereof by temporarily switching on a connected consumer.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: June 17, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventors: Josef Graf, Norbert Mitlmeier, Ludwig Niebler, Bernhard Streich
  • Patent number: 8706345
    Abstract: A starter relay structure for a vehicle, where an electronic control unit of the vehicle controls the starter relay structure. The starter relay structure comprises a first relay and a second relay activated by an ignition signal from the electronic control unit. The starter relay structure further include a third relay activated by an output of the second relay, where an output of the first relay is provided as an input to the third relay.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: April 22, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Andrew M. Bucci, Toshio Hayashi
  • Patent number: 8649152
    Abstract: A circuit configuration for recording the resistance of a coil of a magnetic valve, having at least one magnetic valve, having at least one valve coil that is to be actuated, a current source for applying a current to the at least one valve coil and generating a voltage drop at the at least one valve coil, and an evaluation circuit for outputting the voltage drop generated at the at least one valve coil as the output signal of the circuit configuration.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: February 11, 2014
    Assignee: Knorr-Bremse Systeme Fuer Nutzfahrzeuge GmbH
    Inventors: Markus Schoeneck, Michael Haug, Wolfgang Gscheidle, Markus Deeg, Dieter Woerner
  • Patent number: 8624426
    Abstract: A power supply system includes a main power storage device and a plurality of sub power storage devices. A converter is sequentially connected to one of the sub power storage devices to convert voltage between the selected sub power storage device and an electric power feeding line bidirectionally. The sub power storage device undergoes a connection switching process, and when there is no new sub power storage device remaining for replacement, then, in accordance with that sub power storage device's SOC and the vehicle's state, a request is generated to disconnect the sub power storage device. Here, when a condition regarding a temperature of at least one of the main power storage device and the plurality of sub power storage devices is satisfied, generation of a disconnection request is prohibited, in order to protect the main power storage device.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: January 7, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Norihiko Kato
  • Publication number: 20130201594
    Abstract: The present invention relates to a driving circuit for relay, which uses N relays with their coils coupled to each other. One of the relays is coupled to a driving power supply. A switching control circuit is coupled to a second relay and a reference voltage for controlling on/off of the plurality of relays. A driving control circuit is coupled to the plurality of relays for controlling excitation of the plurality of relays. After the coils of the relays are excited by the driving control circuit, the voltage of a single coil is dropped to one Nth of the driving voltage. Thereby, the power consumption of the coils of the relays can be reduced, and hence enhancing the lifetime and reliability of the relays.
    Type: Application
    Filed: February 3, 2012
    Publication date: August 8, 2013
    Inventors: Pao-Hung LIN, Hung-Lung Wang
  • Patent number: 8371844
    Abstract: A control system for the ignition of a gas burner that includes an electromagnetic valve having a first coil and a second coil, the activation of the first and second coils controlling the flow of gas through the electromagnetic valve. An incandescent element which is designed to be heated until it reaches the gas combustion temperature of the gas delivered to the burner is disposed electrically in series with the first coil, the incandescent element and first coil forming a first branch that is electrically parallel to the second coil.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: February 12, 2013
    Assignee: Coprecitec, S.L.
    Inventors: Félix Querejeta Andueza, Gonzalo José Fernández Llona, José Ignacio Múgica Odriozola, Francisco Javier Echenausia Saez de Zaitegui
  • Patent number: 8300380
    Abstract: An apparatus for determining and/or monitoring at least one process variable. The apparatus includes at least one relay, at least one voltage source, and at least one voltage increasing unit. The relay, the voltage source and the voltage increasing unit as embodied, are matched to one another, and are connected with one another in such a manner that, when the voltage source supplies the relay with voltage for pull-in of the relay, the voltage increasing unit causes such an increase of the voltage applied to the relay, that the applied voltage corresponds at least to the pull-in voltage of the relay.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: October 30, 2012
    Assignee: Endress + Hauser GmbH + Co. KG
    Inventors: Wolfgang Brutschin, Klaus Ruf
  • Patent number: 8050008
    Abstract: A relay device includes mechanical relays, a first bus bar, a second bus bar, and a relay drive circuit. The relay includes a coil, a moving contact whose position changes according to whether the coil is energized, a load terminal conductive to the contact and connected to the first bar, and a coil terminal connected to the coil and second bar. The first bar includes a loading circuit. A current flows to an external load through the loading circuit opened/closed when the position of the contact changes. The second bar includes a coil circuit through which the coil is energized. The drive circuit is packaged on the second bar and opens/closes the coil circuit based on an operation signal. The first and second bars are stacked at predetermined intervals. The relays are between the first and second bars.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: November 1, 2011
    Assignee: Anden Co., Ltd.
    Inventor: Hirohisa Suzuki
  • Patent number: 8004109
    Abstract: A vehicle power supply apparatus includes a battery that is the main power storage device, a power feed line through which power is supplied to an inverter that drives a motor generator, a boost converter provided between the battery and power feed line to convert voltage, batteries that are a plurality of subpower storage devices provided parallel to each other, and a boost converter provided between the plurality of subpower storage devices and power feed line to convert voltage. The boost converter is selectively connected to any one of the plurality of subpower storage devices to convert voltage.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: August 23, 2011
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masayuki Komatsu
  • Patent number: 7868484
    Abstract: A multi-coil automatic transfer switch (ATS) adapted for automatically switching an appropriately rated component to render the ATS operational over a worldwide voltage range is provided. A low voltage contactor includes a low voltage coil magnetically linked with a normally open low voltage main contact. A high voltage contactor is coupled in parallel with the low voltage contactor. The high voltage contactor includes a high voltage coil magnetically linked with a normally open high voltage main contact. A normally closed high voltage auxiliary contact is magnetically linked with the high voltage coil. The normally closed high voltage auxiliary contact has a phase opposite the normally open high voltage main contact. The high voltage contactor opens the normally closed high voltage auxiliary contact to disconnect the low voltage coil.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: January 11, 2011
    Assignee: International Business Machines Corporation
    Inventors: Steven Mark Groff, Trung Le
  • Patent number: 7825534
    Abstract: A relay assembly for a fog light is disclosed which comprises a relay housing having a first terminal adapted to being connected to a switch for operating another light and operation of the switch for illuminating a fog light.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: November 2, 2010
    Inventor: Brian Spear
  • Patent number: 7738233
    Abstract: A method for operating an inductive load, which is operated in a motor vehicle with electric voltages of different magnitudes, is provided, a current rise in the inductive load being influenced by selecting pulse lengths and pulse pauses of the electric voltage.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: June 15, 2010
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Frenz, Juergen Eckhardt, Hans-Friedrich Schwarz, Bernd Schroeder, Timm Hollmann, Joerg Kuempel
  • Publication number: 20100046133
    Abstract: A relay device includes mechanical relays, a first bus bar, a second bus bar, and a relay drive circuit. The relay includes a coil, a moving contact whose position changes according to whether the coil is energized, a load terminal conductive to the contact and connected to the first bar, and a coil terminal connected to the coil and second bar. The first bar includes a loading circuit. A current flows to an external load through the loading circuit opened/closed when the position of the contact changes. The second bar includes a coil circuit through which the coil is energized. The drive circuit is packaged on the second bar and opens/closes the coil circuit based on an operation signal. The first and second bars are stacked at predetermined intervals. The relays are between the first and second bars.
    Type: Application
    Filed: August 13, 2009
    Publication date: February 25, 2010
    Applicant: ANDEN CO., LTD.
    Inventor: Hirohisa SUZUKI
  • Patent number: 7652859
    Abstract: The present disclosure describes a new pushbutton incorporated into new circuit configurations of an improved intelligent electronic device (“IED”), for use in power substation control systems. The new pushbutton is non-mechanical and configured to control a breaker, or other type of substation equipment, after an IED associated with the circuit breaker, or other type of substation equipment, fails to operate. In an embodiment, the new pushbutton may be a low-energy, membrane-type pushbutton. During normal operation, a microprocessor within the IED operates a solid-state device to control the operation of substation equipment. When the IED fails, manually depressing the new pushbutton bypasses the IED microprocessor and manually controls the substation equipment associated with the failed IED.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: January 26, 2010
    Assignee: General Electric Company
    Inventor: Dale Finney
  • Publication number: 20090067110
    Abstract: A switching device comprising switching means for switching at least one current phase between responsive current phase input and responsive current phase output, the switching device being suitable for switching electrical current of a power circuit of an electric motor, further comprises a first communication system interface for a first communication system, a second communication system interface for a second communication system, and a selecting unit adapted to select whether the switching device is a master or slave in relation to said second communication system.
    Type: Application
    Filed: January 25, 2007
    Publication date: March 12, 2009
    Inventors: Stefan Beyer, Peter Hauselt, Rainer Keil
  • Publication number: 20090015066
    Abstract: A power distribution system generally includes at least two relays. An equal-phase pulse generator generates pulse signals in equal phase intervals. At least two drivers, one for each of the at least two relays, control current flow to the at least two relays based on the pulse signals.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 15, 2009
    Applicant: Yazaki North America, Inc.
    Inventors: Sam Yonghong Guo, Richard P. Cuplin
  • Publication number: 20090015073
    Abstract: The position of an RF switch, or switches, in a matrix switch drive system is monitored using AC rather than DC measurement techniques. Using the same wiring as the matrix switch drive system so as not to increase the size and weight of the switch installation, a low current AC signal is provided during non-actuation of the RF switch(es) to each of plural combinations of a capacitor and a microswitch serially connected across each switch coil. With the capacitor and switch coil exhibiting inverse impedance responses to increasing AC frequency, when the microswitch is open only the coil impedance is read and when the microswitch is closed only the capacitor impedance is read. Using a switch coil with an inductance of 1 henry and a capacitor with a capacitance of 0.1 farads, the difference in impedance between the microswitch ON and OFF states is an easily detectable two orders of magnitude.
    Type: Application
    Filed: July 10, 2007
    Publication date: January 15, 2009
    Inventor: David W. Lloyd
  • Patent number: 7405648
    Abstract: There is provided a remote control wiring mechanism, which makes it easy to construct a system by facilitating a connection work and treatment of members constructing the system. A main unit includes signal terminals connected to signal lines and power supply terminals to supply power for driving a relay. A relay unit having a relay is detachably connected to a relay socket of the main unit and is integrally coupled to the main unit. When a transmission signal including on-off information of a switch is received through the signal lines, the on-off state of the switch is reflected in the switching of the relay.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: July 29, 2008
    Assignee: Matsushita Electric Works, Ltd.
    Inventor: Takeshi Hatemata
  • Patent number: 7330345
    Abstract: A fail-safe control system for controlling valves in power generation systems is presented. The AC-coupled, rectified signal supplied to one valve is disabled in the event that the other valve fails. This failure is sensed, for example, through the use of power sensing circuitry configured to sense and multiply the voltage and current applied to the valve. Components such as capacitors and transformers are used exclusively such that only AC power (and not DC power) is transferred, ensuring that, in the worst case, the valves are disabled in the event of a failure.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: February 12, 2008
    Assignee: Honeywell International, Inc.
    Inventors: Evgeni Ganev, William H. Warr
  • Patent number: 7310032
    Abstract: A remote controlled circuit breaker switch handle engagement apparatus is provided. The apparatus is adapted to be removably attached across a circuit breaker face-plate of a traditional residential and commercial circuit breaker in order to facilitate remote completion of a circuit between a source and load, thereby reestablishing electrical service having been previously interrupted. The apparatus utilizes a handle trip assembly which engages an operating switch handle of the circuit breaker.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: December 18, 2007
    Inventor: Harry Kouris
  • Patent number: 7067940
    Abstract: A branching unit for use in submarine systems that includes a ground termination; first, second, and third cable terminations each coupled to a power feed line of a respective submarine cable; a re-configuration relay in series between the first cable termination and the ground termination, the re-configuration relay being unidirectional and having at least one contact positioned in series between the second and third terminations, the at least one contact being closed when the re-configuration relay is de-energized; and a bypass relay in series between the second and third cable terminations, the bypass relay having a contact positioned in parallel with the reconfiguration relay and being open when the bypass relay is de-energized.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: June 27, 2006
    Assignee: Pirelli Cavi e Sistemi S.p.A.
    Inventor: Giuseppe Bianchi
  • Patent number: 7023683
    Abstract: A circuit and method for controlling two or more electric relays, wherein at least one of the relays are rated to handle a higher voltage level while at least one of the relays are rated to handle a lower voltage level. A controller selectively activates the relays such that the higher voltage rated relay(s) open before but close after the lower voltage rated relay(s) within the system.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: April 4, 2006
    Assignee: Yazaki North America, Inc
    Inventors: Sam Guo, James Jones, III, Chidambarakrishnan Rajesh
  • Patent number: 6943540
    Abstract: An arrangement for monioring multiple channel solenoid currents wherein a plurality of separately controllable solenoid coils are coupled commonly by a single current measurement element to one side of a current supply.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: September 13, 2005
    Assignee: TRW Limited
    Inventors: Kenneth Vincent, James Henton Wilson
  • Patent number: 6917506
    Abstract: A control apparatus for master/slave outlets having a current sensor, a driver, a large current switch component and a direct-bucking type power supply such that the working power source required by the master/slave equipment can be supplied stably. Further, the control apparatus for master/slave outlets provides a most simplified circuit to perform a function that the slave outlet supplies a power at the time the master outlet is supplied the power.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: July 12, 2005
    Inventor: Jonie Chou
  • Patent number: 6895187
    Abstract: A branching unit, for use in optical communication systems, has three branches A, B and C each including a connection for a power feed and several inputs/outputs for optical fibers. Optical switches are provided for selectively coupling inputs/outputs of different branches to enable a routeing of optical signals through the unit. The routeing is effected in dependence upon the way in which each of the three branch connections are provided with an electrical power feed.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: May 17, 2005
    Assignee: Alcatel
    Inventor: Stephen Michael Webb
  • Patent number: 6870723
    Abstract: An arrangement includes two series-connected switching contacts in two contactors. The tripping signal thereof is generated with a variable time offset so that the number of disconnection processes and connection processes, which are carried out first in time, are virtually the same during lengthy use.
    Type: Grant
    Filed: November 16, 2000
    Date of Patent: March 22, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventor: Werner Krämer
  • Patent number: 6861931
    Abstract: A system for remotely manipulating circuit breakers between open and closed conditions in an electrical panel having a number of circuit breakers in a vertical array includes an activator unit removably attachable to the panel and having an elongated shaft equipped with a series of control switches adjustably spaced apart to interact with the circuit breakers. A motorized drive feature achieves controlled axial rotation of the shaft to a sufficient extent to cause effective movement of selected circuit breakers. A wireless control unit activates the drive feature to rotate the shaft in either direction to move the circuit breakers to their open or closed positions.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: March 1, 2005
    Inventors: Joseph J. Corliss, Daniel E. Gannon
  • Patent number: 6765775
    Abstract: A submarine branching unit is disclosed that includes a termination for each of at least three line cables and a termination to sea ground. A relay is positioned between each pair of cable terminations. When current flows between two of the cables, the intermediary relay will become energized and cause a contact to connect the third cable to the sea-ground termination. To avoid dangerous surges in current to sea ground when a relay trips, a current limiter is placed in series with the sea ground termination.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: July 20, 2004
    Assignee: Pirelli Cavi E Sistemi S.p.A.
    Inventor: Alberto Pirovano
  • Patent number: 6741442
    Abstract: An intelligent power distribution system including one or more intelligent power strips. The power strips can each include an elongated housing that may be adapted for mounting in an equipment rack. The housing can include a first end, a second end and plurality of power outlets mounted thereon. The first end can have a number of apertures that enable power and signal conductors to enter an interior region of the housing. The second end can include a first and a second communication port. The first communication port may be adapted to enable a computer to communicate with the power the strip. The second communication port may be adapted to enable the power the strip to be daisy chained with a second intelligent power strip. The power strip further includes power management circuitry that can power-on and power-off the power outlets in accordance with an operator defined sequence and delays.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: May 25, 2004
    Assignee: American Power Conversion Corporation
    Inventors: John McNally, Daniel Rohr
  • Patent number: 6741443
    Abstract: A known method of addressing relays in an array is to provide two windings on each relay, wherein one winding is associated with a row drive signal and one winding is associated with a column drive signal, and half of the required activation current is provided by each winding. A known limitation of such addressing arrangements is limited discrimination between selected relays and non-selected relays. The present invention relates to an enhanced addressing system for such arrays of relays.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: May 25, 2004
    Assignee: Alcatel
    Inventors: Bruce Francis Orr, Patrick Conrick
  • Patent number: 6653752
    Abstract: A switch device of theft-prevented type alarm has a first switch module controlled by a starting switch so that the first switch module is turned on when the starting switch is pressed at a first time and is maintained in an on state. A second switch module is normally turned on to connect an input power to the first switch module, and outputs power when the first switch module is turned on. A power-off control circuit is coupled to the second switch module. A receiver is provided for activating the power-off control circuit to turn off the second switch module in response to receiving an off signal.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: November 25, 2003
    Inventor: Dennis Huang
  • Patent number: 6600643
    Abstract: A submarine branching unit including at least one power relay having two separate coils, rather than a single coil. The first coil provides an initial magnetic field capable of closing an electrical circuit contact, while the second coil provides a redundant magnetic field that reinforces and backs-up the magnetic field generated by the first coil. The first low-voltage isolated coil of the relay is positioned in the path of the main trunk in a submarine communication system, and the second high-voltage isolated coil is located in the spur branch connected to sea earth. By this double-coil configuration, the independent and redundant relay power system ensures that the charged spur cable is not switched back to the main trunk when an open circuit occurs or any equivalent system failure that could show a current dropping to zero while the system voltage remains non-zero, avoiding high current passing through relay contacts and subsequent dangerous arcing, each being a possible cause of relay failure.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: July 29, 2003
    Assignee: Pirelli Cavi e Sistemi S.p.A.
    Inventor: Alberto Pirovano
  • Patent number: 6559614
    Abstract: An electrical circuit arrangement for controlling a unit, such as an adjustment system for windows or a sliding sunroof, that is driven by a motor and is situated in a motor vehicle. The arrangement guarantees that, in the case of a short-circuit of circuit components, especially a control device operation of a motor is still possible, especially in a preferred direction of motor rotation, whereby the direction of rotation results in an opening of the unit and the short-circuit is caused by salt water for instance. Two circuit-breaker elements that operate the motor in either direction can be directly activated by an allocated circuit device which bypasses a failed control device. The remaining circuit-breaker element is blocked at least when the first circuit-breaker element is activated.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: May 6, 2003
    Assignee: Leopold Kostal GmbH & Co. KG
    Inventors: Cassian Kock, Ulrich Hulsmann, Hartmut Paschen
  • Patent number: 6513086
    Abstract: A signal conditioning system which includes a low voltage analog bus and a high voltage analog bus. The signal conditioning system comprises a chassis having a plurality of slots, wherein each of the slots is adapted to receive a module. The chassis includes a low voltage analog bus and adapted for transmitting low voltage electrical signals. The chassis also includes a high voltage analog bus and adapted for transmitting high voltage electrical signals. Modules may be placed in slots of the chassis, wherein each module may connect through a connector to one or both of the low voltage analog bus and the high voltage analog bus. The high voltage analog bus allows for the conditioning (including switching) of high voltage electrical signals. In an alternate embodiment, the signal conditioning system may comprise a chassis which only includes a low voltage analog bus, i.e., the chassis does not include a built-in high voltage analog bus.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: January 28, 2003
    Assignee: National Instruments Corporation
    Inventors: Michel Haddad, Alvin G. Becker
  • Patent number: 6459707
    Abstract: A relay multiplexing system which provides improved safety from hazardous voltage conditions. The relay multiplexing system comprises a relay multiplexer module and a terminal block which connects to the relay multiplexer module. The relay multiplexer module and corresponding terminal block incorporate a design according to the present invention whereby power can only be provided to the respective relays when the corresponding terminal block is connected to the respective relay multiplexer module. The terminal block is required to form an electrical path between the power supply in the relay multiplexer module and the relays. Thus, when the terminal block is removed from the corresponding relay multiplexer module, power is unable to be provided to the relays, thereby ensuring safety from hazardous voltages which could otherwise appear on exposed pins of the connector.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: October 1, 2002
    Assignee: National Instruments Corporation
    Inventor: Alvin G. Becker
  • Publication number: 20020126435
    Abstract: A submarine branching unit is disclosed that includes a termination for each of at least three line cables and a termination to sea ground. A relay is positioned between each pair of cable terminations. When current flows between two of the cables, the intermediary relay will become energized and cause a contact to connect the third cable to the sea-ground termination. To avoid dangerous surges in current to sea ground when a relay trips, a current limiter is placed in series with the sea ground termination.
    Type: Application
    Filed: December 27, 2001
    Publication date: September 12, 2002
    Inventor: Alberto Pirovano
  • Publication number: 20020122282
    Abstract: A submarine branching unit including at least one power relay having two separate coils, rather than a single coil. The first coil provides an initial magnetic field capable of closing an electrical circuit contact, while the second coil provides a redundant magnetic field that reinforces and backs-up the magnetic field generated by the first coil. The first low-voltage isolated coil of the relay is positioned in the path of the main trunk in a submarine communication system, and the second high-voltage isolated coil is located in the spur branch connected to sea earth. By this double-coil configuration, the independent and redundant relay power system ensures that the charged spur cable is not switched back to the main trunk when an open circuit occurs or any equivalent system failure that could show a current dropping to zero while the system voltage remains non-zero, avoiding high current passing through relay contacts and subsequent dangerous arcing, each being a possible cause of relay failure.
    Type: Application
    Filed: December 27, 2001
    Publication date: September 5, 2002
    Inventor: Alberto Pirovano
  • Patent number: 6433991
    Abstract: An actuator assembly includes an operating actuator and a holding actuator that are engageable with an operator member of a device. The operating actuation is cycled between on and off states to move the operator member in incremental steps, and the holding actuator is maintained in an active state to maintain or latch the current position of the operator member. Each of the operating and holding actuators may include one of the following: a solenoid actuator; and an actuator including one or more expandable elements, such as a piezoelectric element, a magnetostrictive element, and a heat-expandable element.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: August 13, 2002
    Assignee: Schlumberger Technology Corp.
    Inventors: Thomas M. Deaton, Dwayne D. Leismer, Dennis M. Read
  • Patent number: 6417636
    Abstract: In a power window device, a DOWN switch has first and second switches in a power window circuit located in a door for a window of a passenger's seat. A normally-closed contact of the first switch and a remote UP terminal of the power window circuit to which an UP signal is applied from a power window circuit provided near the driver's seat are connected. A normally-closed contact of the second switch and a remote DOWN terminal of the power window circuit to which a DOWN signal is applied from the power window circuit are connected. When the DOWN switch is manually operated, a signal supply line to which the UP signal and the DOWN signal are applied and a power supply line to which a power source is connected are electrically disconnected. As a result, the power window device is operable even when the signal supply line is grounded due to submerging in water.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: July 9, 2002
    Assignee: Denso Corporation
    Inventor: Nobutomo Takagi
  • Patent number: 6392318
    Abstract: The invention comprises a programmable emergency-stop circuit apparatus and method that provides advanced functions not found in other systems. The circuit centralizes the control of high voltage motor power into one place, by providing connections for, in its minimum configuration, several different kill switches, a motors-on button, and an AC motor power relay coil. In the present invention, kill switches, emergency-stop and motors-on buttons, computer ready and watchdog signals are all conveniently connected in one location, alongside the AC motor power relay coil driver.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: May 21, 2002
    Assignee: Eigenpoint Company
    Inventor: Michael Griffis
  • Patent number: 6388860
    Abstract: A quick stop circuit for a spring applied quick stop mechanism coupled to an electrically operated actuator includes a dual quick stop switch which includes a simultaneously operated normally open switch and a normally closed switch. The closing of the normally open switch causes control units to turn off a relay which controls energizing of the actuator through an actuator relay. The opening of the normally closed switch de-energizes a quick stop relay which disconnects the driver from its power source, which also de-energizes the actuator relay, which de-energizes the actuator so that the spring applied quick stop mechanism will move to its stop position.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: May 14, 2002
    Assignee: Deere & Company
    Inventors: Stanley Jerome Johnson, Kenneth Julius Essmann, Jr., Sammy John Sablan
  • Patent number: 6308668
    Abstract: A method for starting an electromechanical regulating device especially designed for controlling the charge cycle in an internal combustion engine. The electromechanical regulating device has an actuating element and an actuating drive. The actuating drive includes a first electromagnet with a first coil and a second electromagnet with a second coil, an armature which can move between contact faces of the first and second electromagnets, and at least one restoring means which is mechanically coupled to the armature. To start the regulating device, the second coil is energized until a first predefined condition is fulfilled and then the first coil is energized from the time at which a second condition is fulfilled until the armature comes into contact with the contact face.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: October 30, 2001
    Assignees: Siemens Aktiengesellschaft AG, Siemens Automotive Corp
    Inventors: James Nitkiewicz, Volker Warnecke, Hanspeter Zink
  • Patent number: 6266225
    Abstract: A method of programming one or more relay based electrical devices comprises the steps of selecting an electrical device to program, switching the relay from a first state to a second state, and applying a time varying signal to the relay associated with the selected device. The method also includes the steps of counting signal transitions occurring during the switching of the relay, and comparing the counted signal transitions to a predetermined value. The method further includes the step of programming the device based on the comparison step. Accordingly, the programming methodology advantageously enables programming of the device by employing the switching time period of the relay which allows for elimination of a separate dedicated programming terminal.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: July 24, 2001
    Assignee: Delphi Technologies, Inc.
    Inventor: Victor Mendez