Patents by Inventor Robert K. Hawkins

Robert K. Hawkins 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).

  • Hydraulic coupler
    Patent number: 8177454
    Abstract: A quick coupler for attaching implements, such as buckets or other tools, to heavy equipment, such as backhoes and excavators, which includes two recesses or channels for receiving a pair of machine pins of an implement. A hydraulic piston actuates a first locking lever to enclose one of the pair of machine pins in one recess and a second locking lever to enclose the other one of the pair of machine pins in the other recess.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: May 15, 2012
    Assignee: CQMS Pty Ltd
    Inventors: Kenneth M. Steig, Jr., Richard A. Thompson, Robert K. Hawkins, Wilson A. Jones
  • Hydraulic coupler
    Publication number: 20090311086
    Abstract: A quick coupler for attaching implements, such as buckets or other tools, to heavy equipment, such as backhoes and excavators, which includes two recesses or channels for receiving a pair of machine pins of an implement. A hydraulic piston actuates a first locking lever to enclose one of the pair of machine pins in one recess and a second locking lever to enclose the other one of the pair of machine pins in the other recess.
    Type: Application
    Filed: August 20, 2009
    Publication date: December 17, 2009
    Applicant: Design Partners, LLC
    Inventors: Kenneth M. Steig, JR., Richard A. Thompson, Robert K. Hawkins, Wilson A. Jones
  • Hydraulic coupler
    Patent number: 7594776
    Abstract: A quick coupler for attaching implements, such as buckets or other tools, to heavy equipment, such as backhoes and excavators, which includes two recesses or channels for receiving a pair of machine pins of an implement. A hydraulic piston actuates a first locking lever to enclose one of the pair of machine pins in one recess and a second locking lever to enclose the other one of the pair of machine pins in the other recess.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: September 29, 2009
    Assignee: Design Partners, LLC
    Inventors: Kenneth M. Steig, Jr., Richard A. Thompson, Robert K. Hawkins, Wilson A. Jones
  • Hydraulic coupler
    Patent number: 6902346
    Abstract: A quick coupler for attaching implements, such as buckets or other tools, to heavy equipment, such as backhoes and excavators, which includes two recesses or channels for receiving a pair of machine pins of an implement. A hydraulic piston actuates a first locking lever to enclose one of the pair of machine pins in one recess and a second locking lever to enclose the other one of the pair of machine pins in the other recess.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: June 7, 2005
    Assignee: Hendrix Manufacturing, Ltd.
    Inventors: Kenneth M. Steig, Jr., Richard A. Thompson, Robert K. Hawkins, Wilson A. Jones
  • Hydraulic coupler
    Publication number: 20030175072
    Abstract: A quick coupler for attaching implements, such as buckets or other tools, to heavy equipment, such as backhoes and excavators, which includes two recesses or channels for receiving a pair of machine pins of an implement. A hydraulic piston actuates a first locking lever to enclose one of the pair of machine pins in one recess and a second locking lever to enclose the other one of the pair of machine pins in the other recess.
    Type: Application
    Filed: March 15, 2002
    Publication date: September 18, 2003
    Applicant: Hendrix Manufacturing Company, Inc.
    Inventors: Kenneth M. Steig, Richard A. Thompson, Robert K. Hawkins, Wilson A. Jones