Patents by Inventor David Therrien

David Therrien 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: 11324145
    Abstract: An environmental control system for a telecom shelter integrates with a native HVAC system for exchanging interior air in a conditioned space in a machine room, telecom enclosure, or other closed machine environment by forcing or directing cooler outside air to replace interior air without active refrigeration by the native HVAC system. Primary cooling and heating of the conditioned space in the enclosure is performed by an exchange system and control logic that identifies, based on sensory input, when outside air exchange is more efficient than native AC (Air Conditioner) operation. The native AC system is suppressed or inhibited, and primary environmental control performed by fan driven exchange of outside air with air in the enclosure.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: May 3, 2022
    Assignee: Schroff Technologies International, Inc.
    Inventors: Richard De Felice, David Therrien, Robert Paterson, Henry Riddoch
  • Publication number: 20210310680
    Abstract: A control system for ambient air exchange with a machine room or similar enclosure controls an exchange rate of the ambient air based on a temperature differential between the inside (machine room) and outside temperatures, rather than absolute thermostatic controls based solely on the interior temperature. A larger temperature difference between the inside and outside air means a greater cooling potential for the exchanged air. Ambient air exchange is performed by dampers/louvers/vents and a fan speed driving the air exchange. Control of the fan speed based on the temperature differential allows lower fan speeds for controlling the temperature when the temperature differential indicates ample cooling. Higher fan speeds, incurring additional electrical consumption and fan noise, are only needed when a relatively small differential limits the cooling ability of the exchanged air.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 7, 2021
    Inventors: Christophe Massenet, Richard De Felice, David Therrien, Robert Paterson
  • Patent number: 11140798
    Abstract: An environmental control system for a telecom shelter integrates with a native HVAC system for exchanging interior air in a conditioned space in a machine room, telecom enclosure, or other closed machine environment by forcing or directing cooler outside air to replace interior air without active refrigeration by the native HVAC system. Primary cooling and heating of the conditioned space in the enclosure is performed by an exchange system and control logic that identifies, based on sensory input, when outside air exchange is more efficient than native AC (Air Conditioner) operation. The native AC system is suppressed or inhibited, and primary environmental control performed by fan driven exchange of outside air with air in the enclosure.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: October 5, 2021
    Assignee: Schroff Technologies International, Inc.
    Inventors: Richard De Felice, David Therrien, Robert Paterson, Henry Riddoch
  • Publication number: 20200029459
    Abstract: An environmental control system for a telecom shelter integrates with a native HVAC system for exchanging interior air in a conditioned space in a machine room, telecom enclosure, or other closed machine environment by forcing or directing cooler outside air to replace interior air without active refrigeration by the native HVAC system. Primary cooling and heating of the conditioned space in the enclosure is performed by an exchange system and control logic that identifies, based on sensory input, when outside air exchange is more efficient than native AC (Air Conditioner) operation. The native AC system is suppressed or inhibited, and primary environmental control performed by fan driven exchange of outside air with air in the enclosure.
    Type: Application
    Filed: May 21, 2019
    Publication date: January 23, 2020
    Inventors: Richard De Felice, David Therrien, Robert Paterson, Henry Riddoch
  • Publication number: 20160143181
    Abstract: An environmental control system for a telecom shelter integrates with a native HVAC system for exchanging interior air in a conditioned space in a machine room, telecom enclosure, or other closed machine environment by forcing or directing cooler outside air to replace interior air without active refrigeration by the native HVAC system. Primary cooling and heating of the conditioned space in the enclosure is performed by an exchange system and control logic that identifies, based on sensory input, when outside air exchange is more efficient than native AC (Air Conditioner) operation. The native AC system is suppressed or inhibited, and primary environmental control performed by fan driven exchange of outside air with air in the enclosure.
    Type: Application
    Filed: November 19, 2015
    Publication date: May 19, 2016
    Inventors: Richard De Felice, David Therrien, Robert Paterson, Henry Riddoch
  • Patent number: 8770493
    Abstract: A system configured to provide cooling of electronic equipment in a shelter in combination with an air conditioning (A/C) system. The system includes one or more blowers for drawing air into the shelter, a damper arrangement for controlling air exhaust. The system further includes a DC powered controller coupled to the one or more blowers, the damper arrangement, and the A/C system. The controller is configured to receive at least a first analog input signal associated with a shelter-interior temperature, a second analog input signal associated with a shelter-exterior temperature, and a plurality of alarm input signals and to generate the one or more first control signals to control blower rotational speed, the second control signal to open/close the damper arrangement, and a third control signal to inhibit/activate the A/C system based on at least the first analog input signal, or the second analog input signal, or a plurality of alarm input signals, or a combination of these.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: July 8, 2014
    Assignee: Minebea Co., Ltd.
    Inventors: David Therrien, Henry Riddoch
  • Patent number: 8313038
    Abstract: A system configured to provide cooling of electronic equipment in a shelter in combination with an air conditioning (A/C) system. The system includes one or more blowers for drawing air into the shelter, a damper arrangement for controlling air exhaust. The system further includes a DC powered controller coupled to the one or more blowers, the damper arrangement, and the A/C system. The controller is configured to receive at least a first analog input signal associated with a shelter-interior temperature, a second analog input signal associated with a shelter-exterior temperature, and a plurality of alarm input signals and to generate the one or more first control signals to control blower rotational speed, the second control signal to open/close the damper arrangement, and a third control signal to inhibit/activate the A/C system based on at least the first analog input signal, or the second analog input signal, or a plurality of alarm input signals, or a combination of these.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: November 20, 2012
    Assignee: Minebea Co., Ltd.
    Inventors: David Therrien, Henry Riddoch
  • Publication number: 20090321039
    Abstract: A system configured to provide cooling of electronic equipment in a shelter in combination with an air conditioning (A/C) system. The system includes one or more blowers for drawing air into the shelter, a damper arrangement for controlling air exhaust. The system further includes a DC powered controller coupled to the one or more blowers, the damper arrangement, and the A/C system. The controller is configured to receive at least a first analog input signal associated with a shelter-interior temperature, a second analog input signal associated with a shelter-exterior temperature, and a plurality of alarm input signals and to generate the one or more first control signals to control blower rotational speed, the second control signal to open/close the damper arrangement, and a third control signal to inhibit/activate the A/C system based on at least the first analog input signal, or the second analog input signal, or a plurality of alarm input signals, or a combination of these.
    Type: Application
    Filed: June 25, 2008
    Publication date: December 31, 2009
    Applicants: Schroff Technologies International, Inc., Minebea Co., Ltd.
    Inventors: DAVID THERRIEN, Henry Riddoch
  • Publication number: 20070130232
    Abstract: The present invention is associated with a system and a method for providing comprehensive data protection for data, which includes receiving a file and storing a first modified version of the file along with a first difference file, wherein the first difference file contains differences between the first modified version of the file and the received file.
    Type: Application
    Filed: April 14, 2006
    Publication date: June 7, 2007
    Inventors: David Therrien, Adrian VanderSpek, Ashok Ramu