Patents Assigned to GreenKeepers of Delaware
  • Patent number: 9381413
    Abstract: A golf tee has a stake made of a rigid material such as a rigid polymer, combined with a flexible crown with flexible projections and possibly also a flexible pivot point. This reduces resistance at impact, producing less friction and low ball spin. As a result, distance and accuracy are improved. The fusion of the rigid and flexible materials provides a tee that can tolerate repeated hits and be used over and over.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: July 5, 2016
    Assignee: GREENKEEPERS OF DELAWARE, LLC
    Inventors: Francis Carroll, James Carroll, Jr.
  • Patent number: RE40047
    Abstract: A golf shoe cleat has a main body member having a dome-shaped outer face and a planar inner face, a threaded stud molded integrally with the main body member and projecting outwardly from the inner face. A plurality of pseudo pyramid-shaped teeth projecting around the perimeter of the main body member, each of the pseudo pyramid-shaped teeth having an outward angle to provide lateral stability and traction through the plane of a sports swing. The traction teeth have a low profile to reduce damage to putting green surfaces for example. An anti-debris ring is formed on the peripheral edge of the planar inner face. In this position, the anti-debris ring tends to prevent the edge of the cleat from separating from the sole of the golf shoe thereby foreclosing the entry of debris underneath the cleat. At the same time, when the cleat is snugged down by the application tool, the pressure causes the ring to more closely hug the sole and precludes the entry of debris.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: February 12, 2008
    Assignee: GreenKeepers of Delaware
    Inventor: Francis C. Carroll