Patents by Inventor David D. Ellis

David D. Ellis 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: 11972649
    Abstract: A system and method for using a portable device to communicate with a vehicle to authorize one or more vehicle operations. The portable device may authorize the vehicle to unlock/lock doors, start the vehicle engine, or mobilize the vehicle, or a combination thereof. The vehicle may include a vehicle transmitter system with one or more transmitters disposed at various locations on the vehicle, and the portable device may be configured to monitor a communication strength between the portable device and the one or more transmitters of the transmitter system. Based on the monitored signal strength, the portable device may determine location information about itself.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: April 30, 2024
    Assignee: DENSO CORPORATION
    Inventors: J. Michael Ellis, Eric Smith, Aaron Day, Kurt Dykema, Warren E. Guthrie, Brent Bouws, David L Klamer, Kent D. Pilcher
  • Patent number: 10570645
    Abstract: An inline motorized lock drive is mountable within a lock housing to drive a sliding locking element between a locked and unlocked position. The lock drive includes a reversible motor having a shaft with an augur thereon to drive a lock spring, which drives the locking element. The sliding motion of the locking element is axially aligned with the motor axis to substantially reduce friction. The lock drive is preferably modular and emulates a solenoid lock drive with a control circuit. The control circuit is connected to drive the motor is switchable to default to a locked position or an unlocked position and emulate a “fail safe” or a “fail secure” type solenoid lock drive. The control circuit operates on 12 or 24 volts to replace solenoid locks of either voltage and stores power when power is applied, then uses the stored power to return the lock drive to the selected default state when power is removed.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: February 25, 2020
    Assignee: Sargent Manufacturing Company
    Inventors: David D. Ellis, Scott B. Lowder
  • Patent number: 9382729
    Abstract: A release mechanism is actuated by the heat of a fire to electrically and mechanically disconnect electrical wiring from an electronic lock having a plastic housing. The electronic lock is mounted on a fire door and as it is heated by a fire on the opposite side of the fire door, mounts that hold the lock melt, releasing the electronic lock to drop away from the fire door and prevent ignition of the plastic housing. The release mechanism may use shape memory alloy wire to contract and disconnect a ribbon cable. Solder connectors may also be used to disconnect wires. Intumescent material that expands when heated is used to drive the lock mechanism away from the fire door and insulation is used to control the timing of melting.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: July 5, 2016
    Assignee: Sargent Manufacturing Company
    Inventors: David D. Ellis, Scott B. Lowder, Rick Leites, Michael J. Lorello
  • Publication number: 20150184425
    Abstract: An inline motorized lock drive is mountable within a lock housing to drive a sliding locking element between a locked and unlocked position. The lock drive includes a reversible motor having a shaft with an augur thereon to drive a lock spring, which drives the locking element. The sliding motion of the locking element is axially aligned with the motor axis to substantially reduce friction. The lock drive is preferably modular and emulates a solenoid lock drive with a control circuit. The control circuit is connected to drive the motor is switchable to default to a locked position or an unlocked position and emulate a “fail safe” or a “fail secure” type solenoid lock drive. The control circuit operates on 12 or 24 volts to replace solenoid locks of either voltage and stores power when power is applied, then uses the stored power to return the lock drive to the selected default state when power is removed.
    Type: Application
    Filed: August 9, 2013
    Publication date: July 2, 2015
    Inventors: David D. Ellis, Scott B. Lowder
  • Publication number: 20140318200
    Abstract: A release mechanism is actuated by the heat of a fire to electrically and mechanically disconnect electrical wiring from an electronic lock having a plastic housing. The electronic lock is mounted on a fire door and as it is heated by a fire on the opposite side of the fire door, mounts that hold the lock melt, releasing the electronic lock to drop away from the fire door and prevent ignition of the plastic housing. The release mechanism may use shape memory alloy wire to contract and disconnect a ribbon cable. Solder connectors may also be used to disconnect wires. Intumescent material that expands when heated is used to drive the lock mechanism away from the fire door and insulation is used to control the timing of melting.
    Type: Application
    Filed: December 7, 2012
    Publication date: October 30, 2014
    Inventors: David D. Ellis, Scott B. Lowder, Rick Leites, Michael J. Lorello
  • Publication number: 20030009401
    Abstract: The invention provides a method, system, and computer program device for cost estimation relating to utility usage and utility billing. Utility information concerning usage of utilities is collected, and a report is provided of actual and/or estimated usage and/or cost of utility resources. Information is stored relating to customers, one or more utilities relating to the customer, as well as a variety of rules that may be applied by the utilities for the customers, depending on various situations, in determining the utility information and the costs thereof. Measurement related information and/or estimate related information is collected, representative of the utility usage and the estimated usage by the customer(s). A user may selected one or more preferences representative of a variable, which are utilized in generating the utility information for the user.
    Type: Application
    Filed: April 29, 2002
    Publication date: January 9, 2003
    Applicant: Enerwise Global Technologies, Inc.
    Inventor: David D. Ellis
  • Publication number: 20020198629
    Abstract: The invention provides a method, system, and computer program device for cost estimation relating to utility usage and utility billing. Utility information concerning usage of utilities is collected, and a report is provided of actual and/or estimated usage and/or cost of utility resources. Information is stored relating to customers, one or more utilities relating to the customer, as well as a variety of rules that may be applied by the utilities for the customers, depending on various situations, in determining the utility information and the costs thereof. Measurement related information and/or estimate related information is collected, representative of the utility usage and the estimated usage by the customer(s). A user may selected one or more preferences representative of a variable, which are utilized in generating the utility information for the user.
    Type: Application
    Filed: April 23, 2002
    Publication date: December 26, 2002
    Applicant: Enerwise Global Technologies, Inc.
    Inventor: David D. Ellis