Patents by Inventor Jacob H. Schmidt, Jr.

Jacob H. Schmidt, Jr. 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).

  • Golf club with lockable head-to-shaft angle adjustment
    Patent number: 5377980
    Abstract: A golf club having a mechanism permitting adjustment of the shaft angle relative to the club head. Fixed stops limit the range of angular adjustment. The body of the club head has a central opening extending to the sole of the club. The opening is closed by a sole plate that requires a special tool for removal and reinstallation. A serrated surface secured to an extension of the club shaft within the opening mates with a corresponding serrated surface secured to the club head. The angle of the shaft relative to the head is locked by installing the sole plate which forces the two serrated surfaces together. In order to change the shaft-to-head angle, the sole plate must be loosened sufficiently to permit the cooperating serrations to disengage and be moved relative to each other.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: January 3, 1995
    Assignee: Plop Golf Company
    Inventors: Richard H. Hannon, Jacob H. Schmidt, Jr.
  • Golf club with lockable head to shaft relative angle adjustment
    Patent number: 5292123
    Abstract: A golf club with a shaft angularly adjustable relative to the head through selected angles. A special tool must be used to allow any angular adjustments between shaft and head. A structural stop limits the maximum and minimum angles of adjustment between the head and shaft.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: March 8, 1994
    Assignee: Plop Golf Company
    Inventors: Jacob H. Schmidt, Jr., Richard H. Hannon