Patents by Inventor Darrel Hannaford

Darrel Hannaford 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).

  • Combined power take-off and hydraulic pump assembly
    Patent number: 9404545
    Abstract: A combined power take-off and hydraulic pump assembly includes a power-take off including a housing portion having an opened end, an input put mechanism that is adapted to be connected to a source of rotational energy, and an output mechanism that is rotatably driven by the input mechanism. The assembly also includes a hydraulic pump including a housing portion having an opened end, a fluid inlet port that is adapted to communicate with a reservoir containing a quantity of relatively low pressure hydraulic fluid, and a pumping mechanism that is rotatably driven by the output mechanism of the power take-off. An intermediate housing has a first opened end that cooperates with the opened end of the housing portion of the power take-off and a second opened end that cooperates with the opened end of the housing portion of the hydraulic pump. The intermediate housing also has a fluid outlet port that communicates with the pumping mechanism and that is adapted to communicate with a hydraulically driven device.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: August 2, 2016
    Assignee: Parker-Hannifin Corporation
    Inventors: James E. Bohn, Darrel Hannaford, Brian L. Rang
  • Combined Power Take-Off and Hydraulic Pump Assembly
    Publication number: 20130327031
    Abstract: A combined power take-off and hydraulic pump assembly includes a power take off including a housing portion having an opened end, an input put mechanism that is adapted to be connected to a source of rotational energy, and an output mechanism that is rotatably driven by the input mechanism. The assembly also includes a hydraulic pump including a housing portion having an opened end, a fluid inlet port that is adapted to communicate with a reservoir containing a quantity of relatively low pressure hydraulic fluid, and a pumping mechanism that is rotatably driven by the output mechanism of the power take-off. An intermediate housing has a first opened end that cooperates with the opened end of the housing portion of the power take-off and a second opened end that cooperates with the opened end of the housing portion of the hydraulic pump. The intermediate housing also has a fluid outlet port that communicates with the pumping mechanism and that is adapted to communicate with a hydraulically driven device.
    Type: Application
    Filed: February 7, 2012
    Publication date: December 12, 2013
    Applicant: PARKER-HANNIFIN CORPORATION
    Inventors: James E. Bohn, Darrel Hannaford, Brian L. Rang