Patents by Inventor Raleigh D. Stewart

Raleigh D. Stewart 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: 11435108
    Abstract: The present invention is a device for providing a non-conductive refrigerant line break that provides an electrical discontinuity in a high-pressure metallic refrigerant line. The present invention could be used for the installation of HVAC units in which metallic refrigerant lines would necessarily penetrate a security partition or security wall. In an embodiment, a conductive line run external to a secure facility would be broken by a non-conductive line approximately contemporaneously with the conductive line's wall penetration or entirely within an internal cavity. The non-conductive line would run a distance determined by a consulting engineer to provide sufficient security given the application. The non-conductive line would then be attached to a conductive line within the secure facility. The present invention utilizes a non-threaded fitting extension to increase surface area for epoxy bonding.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: September 6, 2022
    Inventor: Raleigh D. Stewart
  • Publication number: 20210318020
    Abstract: The present invention is a device for providing a non-conductive refrigerant line break that provides an electrical discontinuity in a high-pressure metallic refrigerant line. The present invention could be used for the installation of HVAC units in which metallic refrigerant lines would necessarily penetrate a security partition or security wall. In an embodiment, a conductive line run external to a secure facility would be broken by a non-conductive line approximately contemporaneously with the conductive line's wall penetration or entirely within an internal cavity. The non-conductive line would run a distance determined by a consulting engineer to provide sufficient security given the application. The non-conductive line would then be attached to a conductive line within the secure facility. The present invention utilizes a non-threaded fitting extension to increase surface area for epoxy bonding.
    Type: Application
    Filed: April 14, 2020
    Publication date: October 14, 2021
    Inventor: Raleigh D. Stewart
  • Patent number: 10798843
    Abstract: An apparatus is described that forms a lifting and lowering assembly for equipment racks, or other equipment items, by attaching lifters onto a computer equipment rack, and other datacenter equipment, in order to allow the equipment or equipment rack to be raised or lowered vertically without unloading the equipment rack. The lifters mounted on the equipment rack are controlled by a remote control passing signals through a power supply/relay control box that are connected to the rack mounted lifters. Through the attachment and activation of rack mounted lifters, the assembly may raise and lower fully loaded equipment racks in a vertical direction to assist in the maintenance and relocation of equipment racks or other data center equipment.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: October 6, 2020
    Inventors: Raleigh D. Stewart, Jody B. DuMond
  • Publication number: 20200170138
    Abstract: An apparatus is described that forms a lifting and lowering assembly for equipment racks, or other equipment items, by attaching lifters onto a computer equipment rack, and other datacenter equipment, in order to allow the equipment or equipment rack to be raised or lowered vertically without unloading the equipment rack. The lifters mounted on the equipment rack are controlled by a remote control passing signals through a power supply/relay control box that are connected to the rack mounted lifters. Through the attachment and activation of rack mounted lifters, the assembly may raise and lower fully loaded equipment racks in a vertical direction to assist in the maintenance and relocation of equipment racks or other data center equipment.
    Type: Application
    Filed: November 26, 2018
    Publication date: May 28, 2020
    Inventors: Raleigh D. Stewart, Jody B. DuMond