Patents by Inventor Douglas A. Stephens

Douglas A. Stephens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10406392
    Abstract: Methods and systems for a fire pump control system are provided. An example fire pump control system includes a pump system having a given full load current, wherein the pump system comprises (i) a fire pump, (ii) a first disconnect switch and (iii) a first circuit breaker. The first disconnect switch and the first circuit breaker are located upstream of the fire pump. The system further includes a controller configured to control operation of the fire pump, and the controller comprises a second disconnect switch and a second circuit breaker. The controller is located upstream of the first disconnect switch and the first circuit breaker, and is configured to avoid (i) opening within two minutes at 600 percent of the full load current, (ii) opening with a restart transient of 24 times the full load current, and (iii) opening within 10 minutes at 300 percent of the full load current.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: September 10, 2019
    Assignee: ASCO Power Technologies, L.P.
    Inventor: Douglas A. Stephens
  • Patent number: 10240593
    Abstract: Controlling the operation of a jockey pump in a fire pump system including a jockey pump controller which includes an electronic circuit board configured to receive a signal indicating a pressure value, and compares the pressure value to a threshold for initiating operation of the jockey pump. The jockey pump controller may further include memory configured to store event statistics indicating information regarding past operation of the jockey pump.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: March 26, 2019
    Assignee: ASCO Power Technologies, L.P.
    Inventor: Douglas A. Stephens
  • Patent number: 10179256
    Abstract: An example system in a fire pump room may comprise a monitoring component that is configured to receive data from two or more pump room devices of a fire pump room. The monitoring component may include a plurality of input ports and each of the two or more pump room devices may be communicatively coupled to the monitoring component via a corresponding input port. The system may further comprise a wireless network interface controller communicatively coupled to a server in a network via a wireless access point, and a memory configured to store subscription information for one or more subscribing parties. Additionally, the system may comprise a processing component configured to send an indication of the received data to at least one of the one or more subscribing parties via the wireless network interface controller.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: January 15, 2019
    Assignee: ASCO Power Technologies, L.P.
    Inventor: Douglas A. Stephens
  • Publication number: 20160375289
    Abstract: Methods and systems for a fire pump control system are provided. An example fire pump control system includes a pump system having a given full load current, wherein the pump system comprises (i) a fire pump, (ii) a first disconnect switch and (iii) a first circuit breaker. The first disconnect switch and the first circuit breaker are located upstream of the fire pump. The system further includes a controller configured to control operation of the fire pump, and the controller comprises a second disconnect switch and a second circuit breaker. The controller is located upstream of the first disconnect switch and the first circuit breaker, and is configured to avoid (i) opening within two minutes at 600 percent of the full load current, (ii) opening with a restart transient of 24 times the full load current, and (iii) opening within 10 minutes at 300 percent of the full load current.
    Type: Application
    Filed: June 29, 2016
    Publication date: December 29, 2016
    Inventor: Douglas A. Stephens
  • Patent number: 9482220
    Abstract: Example devices, systems, and methods disclosed herein relate to controlling operation of a fire pump or jockey pump of a fire pump system. An example fire pump control system may comprise a jockey pump controller configured to control operation of a jockey pump and a fire pump controller configured to control operation of a fire pump. The jockey pump controller may be configured to determine a first pressure value based on an output of a jockey pump pressure sensor. The fire pump controller may be configured to receive the first pressure value from the jockey pump controller. The fire pump controller may also be configured to determine a second pressure value based on an output of a fire pump pressure sensor and select a predetermined action based on a comparison of the first pressure value and the second pressure value. Additional example devices, systems, and methods are described herein.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: November 1, 2016
    Assignee: ASCO Power Technologies, L.P.
    Inventor: Douglas A. Stephens
  • Patent number: 9453505
    Abstract: Methods and systems for operating a fire pump controller are provided. An example method includes causing a power supply coupled to a an electric motor-driven water pump through a fire pump controller in a fire protection system to provide power to the water pump, and monitoring the performance of the power supply during the motor starting period by measuring the voltage and/or current of its output under motor load conditions. The method may also include providing visual indications, such as traces or starting signatures of motor power supply voltages and/or currents during the motor starting period for the purposes of observation and troubleshooting motor power supply and power train performance problems.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: September 27, 2016
    Assignee: ASCO POWER TECHNOLOGIES, L.P.
    Inventors: Douglas A. Stephens, Harlan A. Rosenthal
  • Publication number: 20140303794
    Abstract: An example system in a fire pump room may comprise a monitoring component that is configured to receive data from two or more pump room devices of a fire pump room. The monitoring component may include a plurality of input ports and each of the two or more pump room devices may be communicatively coupled to the monitoring component via a corresponding input port. The system may further comprise a wireless network interface controller communicatively coupled to a server in a network via a wireless access point, and a memory configured to store subscription information for one or more subscribing parties. Additionally, the system may comprise a processing component configured to send an indication of the received data to at least one of the one or more subscribing parties via the wireless network interface controller.
    Type: Application
    Filed: March 11, 2014
    Publication date: October 9, 2014
    Applicant: ASCO POWER TECHNOLOGIES, L.P.
    Inventor: Douglas A. Stephens
  • Publication number: 20130343911
    Abstract: Example devices, systems, and methods disclosed herein relate to controlling operation of a fire pump or jockey pump of a fire pump system. An example fire pump control system may comprise a jockey pump controller configured to control operation of a jockey pump and a fire pump controller configured to control operation of a fire pump. The jockey pump controller may be configured to determine a first pressure value based on an output of a jockey pump pressure sensor. The fire pump controller may be configured to receive the first pressure value from the jockey pump controller. The fire pump controller may also be configured to determine a second pressure value based on an output of a fire pump pressure sensor and select a predetermined action based on a comparison of the first pressure value and the second pressure value. Additional example devices, systems, and methods are described herein.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 26, 2013
    Applicant: ASCO POWER TECHNOLOGIES, L.P.
    Inventor: Douglas A. Stephens
  • Publication number: 20130343910
    Abstract: Methods and systems for operating a fire pump controller are provided. An example method includes causing a power supply coupled to a an electric motor-driven water pump through a fire pump controller in a fire protection system to provide power to the water pump, and monitoring the performance of the power supply during the motor starting period by measuring the voltage and/or current of its output under motor load conditions. The method may also include providing visual indications, such as traces or starting signatures of motor power supply voltages and/or currents during the motor starting period for the purposes of observation and troubleshooting motor power supply and power train performance problems.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 26, 2013
    Applicant: ASCO POWER TECHNOLOGIES, L.P.
    Inventors: Douglas A. Stephens, Harlan A. Rosenthal
  • Publication number: 20120230846
    Abstract: Example devices, systems, and methods disclosed herein relate to controlling operation of a jockey pump of a fire pump system. A jockey pump controller may include an electronic circuit board configured to receive a signal indicating a pressure value, and to compare the pressure value to a threshold for initiating operation of a jockey pump. The jockey pump controller may further include memory configured to store event statistics indicating information regarding past operation of the jockey pump. Additional example devices, systems, and methods are described herein.
    Type: Application
    Filed: March 2, 2012
    Publication date: September 13, 2012
    Inventor: Douglas A. Stephens
  • Patent number: 4688123
    Abstract: A cartridge handling device and method for loading and unloading a rigid, diskette-containing cartridge into and from a diskette drive mechanism of a recording/reproducing apparatus. The cartridge is moved rearwardly in the cartridge area to cause the shutter of the cartridge to be opened and a latch mechanism actuated to cause movement of a lifter mechanism in the direction opposite to that of the inserting direction of the cartridge, which movement of the lifter mechanism permits the carrier unit to slide toward the base unit to the cartridge loaded position. Ejection of the cartridge is effected by depressing an eject button to slide the lifter mechanism rearwardly to force the carrier assembly upwardly to the cartridge unloaded position, and this releases the shutter actuator to cause movement of the cartridge from the cartridge area in the ejecting direction a distance sufficient to enable removal of the cartridge.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: August 18, 1987
    Assignee: International Business Machines Corporation
    Inventors: Gary L. Sokol, Michael J. Steen, Douglas A. Stephen