Patents by Inventor David J. MacFadyen

David J. MacFadyen 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: 5126934
    Abstract: An automated gas distribution system for safely and reliably controlling the flow of gaseous fuel to gas appliances. The system implements a "closed-loop" delivery of gas, i.e., the gas is provided to a recongnized appliance only when that appliance sends a valid request for gas to a control/communications subsystem. Certain conditions preclude the supply of gas despite a valid request for gas and include an appliance or system malfunction, or a command from the system operator instructing the system to ignore certain gas requests. In addition, emergency conditions, such as a fire or gas leak will also circumvent the closed-loop delivery of gas to appliances.
    Type: Grant
    Filed: June 9, 1989
    Date of Patent: June 30, 1992
    Assignee: Smart House, L.P.
    Inventor: David J. MacFadyen
  • Patent number: 5101191
    Abstract: An automated system for providing different services within a house includes an appliance coordination data network for communicating relatively low speed appliance digital data within a house, a high capacity data network for transferring high speed digital data within the house, an energy distribution system for distributing energy throughout the house, an analog services distribution system for distributing conventional analog signals throughout the house and a video services distribution network for distributing video services throughout the house. The appliance coordination network interfaces with the energy distribution system to control the flow of energy to appliances throughout the house responsive to a digital request or interrogation signal that is emitted from the appliance itself.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: March 31, 1992
    Assignee: Smart House Limited Partnership
    Inventors: David J. MacFadyen, Robert G. Edwards, Kenneth P. Wacks, Daniel J. Foley
  • Patent number: 4899217
    Abstract: An automated system for providing different services within a house includes an appliance coordination data network for communicating relatively low speed appliance digital data within a house, a high capacity data network for transferring high speed digital data within the house, an energy distribution system for distributing energy throughout the house, an analog services distribution system for distributing conventional analog signals throughout the house and a video services distribution network for distributing video services throughout the house. The appliance coordination network interfaces with the energy distribution system to control the flow of energy to appliances throughout the house responsive to a digital request or interrogation signal that is emitted from the appliance itself.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: February 6, 1990
    Assignee: Smart House Limited Partnership
    Inventors: David J. MacFadyen, Robert G. Edwards, Kenneth P. Wacks, Daniel J. Foley
  • Patent number: 4899129
    Abstract: An automated system for providing different services within a house includes an appliance coordination data network for communicating relatively low speed appliance digital data within a house, a high capacity data network for transferring high speed digital data within the house, an energy distribution system for distributing energy throughout the house, an analog services distribution system for distributing conventional analog signals throughout the house and a video services distribution network for distributing video services throughout the house. The appliance coordination network interfaces with the energy distribution system to control the flow of energy to appliances throughout the house responsive to a digital request or interrogation signal that is emitted from the appliance itself.
    Type: Grant
    Filed: November 8, 1988
    Date of Patent: February 6, 1990
    Assignee: Smart House Limited Partnership
    Inventors: David J. MacFadyen, Robert G. Edwards, Kenneth P. Wacks, Daniel J. Foley