Patents by Inventor David J. Dollhopf

David J. Dollhopf 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).

  • Noise abatement for aircraft components and systems in aircraft bays
    Patent number: 9394685
    Abstract: An acoustic absorption material may comprise an outer layer and a first layer of batting material proximate to the outer layer. A first layer of room temperature vulcanized silicone (RTV) may be proximate to the batting material. A second layer of batting material may be proximate to the first layer of RTV opposite the first layer of batting material.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: July 19, 2016
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: David J. Dollhopf, Alan Kasner, Suzanne L. B. Woll
  • NOISE ABATEMENT FOR AIRCRAFT COMPONENTS AND SYSTEMS IN AIRCRAFT BAYS
    Publication number: 20160047119
    Abstract: An acoustic absorption material may comprise an outer layer and a first layer of batting material proximate to the outer layer. A first layer of room temperature vulcanized silicone (RTV) may be proximate to the batting material. A second layer of batting material may be proximate to the first layer of RTV opposite the first layer of batting material.
    Type: Application
    Filed: August 18, 2014
    Publication date: February 18, 2016
    Inventors: David J. Dollhopf, Alan Kasner, Suzanne L.B. Woll