Patents by Inventor Dave Letteer

Dave Letteer 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: 10989479
    Abstract: An integrated heat exchanger assembly comprises a first header tank, a second header tank, a first heat exchanger core extending between the first header tank and the second header tank, a second heat exchanger core extending between the first header tank and the second header tank, and a third heat exchanger core extending between the first header tank and the second header tank. The first heat exchanger core is in fluid communication with a liquid coolant and a refrigerant, the second heat exchanger core in fluid communication with a first portion of a flow of air and the refrigerant, and the third heat exchanger core in fluid communication with a second portion of the flow of the air and the liquid coolant.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: April 27, 2021
    Assignee: HANON SYSTEMS
    Inventors: Orest Alexandru Dziubinschi, Brennan Sicks, Kyle Hanson, Dave Letteer
  • Publication number: 20200321647
    Abstract: A method of applying sheet material onto a plate or a surface, such as a cooling plate for use with a battery, is disclosed. The method comprises the steps of: providing a cylinder roller configured to selectively adhere a sheet material to an outer surface thereof, picking the sheet from a substrate by rotating the cylinder roller relative to the substrate, and placing the sheet on the plate or surface by rotating the cylinder roller relative to the plate or surface. The outer surface of the cylinder roller is divided circumferentially into an adhesion portion and a non-adhesion portion. The adhesion portion is configured to provide an adhesion force for adhering the sheet to the outer surface of the cylinder roller while the non-adhesion portion remains stationary relative to an axis of rotation of the cylinder roller during the rotating of the cylinder roller relative to the substrate and the plate or surface.
    Type: Application
    Filed: April 5, 2019
    Publication date: October 8, 2020
    Inventors: Qiong Zhang, Dave Letteer, Carl Walzer
  • Publication number: 20200033064
    Abstract: An integrated heat exchanger assembly comprises a first header tank, a second header tank, a first heat exchanger core extending between the first header tank and the second header tank, a second heat exchanger core extending between the first header tank and the second header tank, and a third heat exchanger core extending between the first header tank and the second header tank. The first heat exchanger core is in fluid communication with a liquid coolant and a refrigerant, the second heat exchanger core in fluid communication with a first portion of a flow of air and the refrigerant, and the third heat exchanger core in fluid communication with a second portion of the flow of the air and the liquid coolant.
    Type: Application
    Filed: October 2, 2018
    Publication date: January 30, 2020
    Inventors: Orest Alexandru Dziubinschi, Brennan Sicks, Kyle Hanson, Dave Letteer