Patents by Inventor Kevin Pfeiffer

Kevin Pfeiffer 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).

  • Single-piece propeller and method of making
    Patent number: 9266603
    Abstract: A method for making a propeller product is disclosed. The propeller is formed using polyurethane cores adhered to a laminate hub to form a core assembly. An encapsulating structural laminate skin is then formed on the core assembly using a resin-transfer-molding process to create a single-piece composite propeller.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: February 23, 2016
    Assignee: TEXTRON INNOVATIONS, INC.
    Inventors: Danny Ball, Kevin Pfeiffer
  • Propeller blade retention device
    Patent number: 8753088
    Abstract: A propeller blade retention system and method of manufacture are disclosed. Because of the design, a truly integral hub is able to house a set of variable pitch blades. Each hub socket establishes a substantially cylindrical interface with its respective blade, making the blade slidably receivable for installation. Each blade is allowed axial rotation, and held inside the socket by a set of angular contact bearings. A snap ring locks the blade against coming back out of the socket. An O-ring is provided in the interface to create a fluid seal. The hub alone accomplishes all of the required load-bearing and weather-seal functions.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: June 17, 2014
    Assignee: Textron Innovations Inc.
    Inventors: Kevin Pfeiffer, Danny Ball
  • Single-Piece Propeller And Method Of Making
    Publication number: 20120279641
    Abstract: A method for making a propeller product is disclosed. The propeller is formed using polyurethane cores adhered to a laminate hub to form a core assembly. An encapsulating structural laminate skin is then formed on the core assembly using a resin-transfer-molding process to create a single-piece composite propeller.
    Type: Application
    Filed: May 30, 2012
    Publication date: November 8, 2012
    Inventors: Danny Ball, Kevin Pfeiffer
  • Single-piece propeller and method of making
    Patent number: 8221084
    Abstract: A method for making a propeller product is disclosed. The propeller is formed using polyurethane cores adhered to a laminate hub to form a core assembly. An encapsulating structural laminate skin is then formed on the core assembly using a resin-transfer-molding process to create a single-piece composite propeller.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: July 17, 2012
    Assignee: Textron Innovations Inc.
    Inventors: Danny Ball, Kevin Pfeiffer
  • Single-Piece Propeller And Method Of Making
    Publication number: 20090220347
    Abstract: A method for making a propeller product is disclosed. The propeller is formed using polyurethane cores adhered to a laminate hub to form a core assembly. An encapsulating structural laminate skin is then formed on the core assembly using a resin-transfer-molding process to create a single-piece composite propeller.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Inventors: Danny Ball, Kevin Pfeiffer
  • Propeller Blade Retention Device
    Publication number: 20090220344
    Abstract: A propeller blade retention system and method of manufacture are disclosed. Because of the design, a truly integral hub is able to house a set of variable pitch blades. Each hub socket establishes a substantially cylindrical interface with its respective blade, making the blade slidably receivable for installation. Each blade is allowed axial rotation, and held inside the socket by a set of angular contact bearings. A snap ring locks the blade against coming back out of the socket. An O-ring is provided in the interface to create a fluid seal. The hub alone accomplishes all of the required load-bearing and weather-seal functions.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Inventors: Kevin Pfeiffer, Danny Ball