Patents by Inventor Nate Gray

Nate Gray 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).

  • Helicopter blade mandrel with roller assembly
    Patent number: 8510946
    Abstract: Methods and apparatus are provided for making a rotor blade spar from composite material wherein a multi-component mandrel is used to form the composite spar. The mandrel is made using a number of components that are assembled and held in place using a roller assembly. The roller assembly is removed after pre-cure lay up and compaction of the composite material. Once the roller assembly is removed, the remaining mandrel components can be separated from each other and easily removed from the spar. The mandrel components, including the roller assembly, can then be re-assembled and re-used to form additional composite spars.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: August 20, 2013
    Assignee: Hexcel Corporation
    Inventors: Richard A. Callis, Wayne Johnston, Nate Gray, David P. Bailey
  • Helicopter Blade Mandrel With Roller Assembly
    Publication number: 20120034090
    Abstract: Methods and apparatus are provided for making a rotor blade spar from composite material wherein a multi-component mandrel is used to form the composite spar. The mandrel is made using a number of components that are assembled and held in place using a roller assembly. The roller assembly is removed after pre-cure lay up and compaction of the composite material. Once the roller assembly is removed, the remaining mandrel components can be separated from each other and easily removed from the spar. The mandrel components, including the roller assembly, can then be re-assembled and re-used to form additional composite spars.
    Type: Application
    Filed: October 19, 2011
    Publication date: February 9, 2012
    Applicant: Hexcel Corporation
    Inventors: Richard A. Callis, Wayne Johnston, Nate Gray, David P. Bailey
  • Helicopter blade mandrel with roller assembly
    Patent number: 8066504
    Abstract: Methods and apparatus are provided for making a rotor blade spar from composite material wherein a multi-component mandrel is used to form the composite spar. The mandrel is made using a number of components that are assembled and held in place using a roller assembly. The roller assembly is removed after pre-cure lay up and compaction of the composite material. Once the roller assembly is removed, the remaining mandrel components can be separated from each other and easily removed from the spar. The mandrel components, including the roller assembly, can then be re-assembled and re-used to form additional composite spars.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: November 29, 2011
    Assignee: Hexcel Corporation
    Inventors: Richard A. Callis, Wayne Johnston, Nate Gray, David P. Bailey
  • Helicopter blade mandrel with roller assembly
    Publication number: 20090189325
    Abstract: Methods and apparatus are provided for making a rotor blade spar from composite material wherein a multi-component mandrel is used to form the composite spar. The mandrel is made using a number of components that are assembled and held in place using a roller assembly. The roller assembly is removed after pre-cure lay up and compaction of the composite material. Once the roller assembly is removed, the remaining mandrel components can be separated from each other and easily removed from the spar. The mandrel components, including the roller assembly, can then be re-assembled and re-used to form additional composite spars.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 30, 2009
    Applicant: Hexcel Corporation
    Inventors: Richard A. Callis, Wayne Johnston, Nate Gray, David P. Bailey