Patents by Inventor Campbell McFall

Campbell McFall 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).

  • Load bearing apparatus and method
    Patent number: 9850112
    Abstract: A load-bearing apparatus (100) comprises a winch apparatus (110), and a load-bearing spoolable medium (120) for connecting to a load, the load-bearing spoolable medium comprising a plurality of load-bearing elements (121-123); wherein at least a portion of the load-bearing spoolable medium is spooled about the winch apparatus. The provision of multiple load-bearing elements may help reduce the diameter appropriate for the winch apparatus, while maintaining the necessary load bearing capacity for supporting, paying in and/or paying out the load. The load-bearing apparatus may comprise a tension control apparatus (151-153) for controlling, applying and/or adjusting the tension of the load-bearing spoolable medium.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: December 26, 2017
    Assignee: Parkburn Precision Handling Systems Limited
    Inventors: Andrew Lawson, Campbell McFall, Dennis O'Hara, Philip Bull
  • LOAD BEARING APPARATUS AND METHOD
    Publication number: 20160031685
    Abstract: A load-bearing apparatus (100) comprises a winch apparatus (110), and a load-bearing spoolable medium (120) for connecting to a load, the load-bearing spoolable medium comprising a plurality of load-bearing elements (121-123); wherein at least a portion of the load-bearing spoolable medium is spooled about the winch apparatus. The provision of multiple load-bearing elements may help reduce the diameter appropriate for the winch apparatus, while maintaining the necessary load bearing capacity for supporting, paying in and/or paying out the load. The load-bearing apparatus may comprise a tension control apparatus (151-153) for controlling, applying and/or adjusting the tension of the load-bearing spoolable medium.
    Type: Application
    Filed: April 16, 2014
    Publication date: February 4, 2016
    Applicant: Parkburn Precision Handling Systems Limited
    Inventors: Andrew Lawson, Campbell McFall, Dennis O'Hara, Philip Bull
  • Inclined drum arrangement for winch apparatus
    Patent number: 8814143
    Abstract: A winch apparatus (10) comprises first and second drum assemblies (12, 14) each defining a discontinuous drum contact surface for engaging a common spoolable medium (50), wherein the first and second drum assemblies (12, 14) are configured to rotate about respective first and second axes of rotation (24, 26) which are inclined relative to each other. In one disclosed embodiment the drum assemblies (12, 14) are intermeshed in a general axial direction.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: August 26, 2014
    Assignee: Parkburn Precision Handling Systems Limited
    Inventors: Andrew Lawson, Campbell McFall, Dennis O'Hara
  • WINCH APPARATUS
    Publication number: 20130020544
    Abstract: A winch apparatus (10) comprises first and second drum assemblies (12, 14) each defining a discontinuous drum contact surface for engaging a common spoolable medium (50), wherein the first and second drum assemblies (12, 14) are configured to rotate about respective first and second axes of rotation (24, 26) which are inclined relative to each other. In one disclosed embodiment the drum assemblies (12, 14) are intermeshed in a general axial direction.
    Type: Application
    Filed: March 17, 2011
    Publication date: January 24, 2013
    Applicant: PARKBURN PRECISION HANDLING SYSTEMS LIMITED
    Inventors: Andrew Lawson, Campbell McFall, Dennis O'Hara