Patents by Inventor Sybil Maroth

Sybil Maroth 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).

  • Patent number: 4684133
    Abstract: A swing-force indicator for a playing piece of sports equipment intended to be swung in the playing of a game, including an elongate housing, an elongate shaft, and bearings disposed adjacent opposite ends of the housing for mounting the shaft for lengthwise turning movement therein. A manually engageable finger piece is rigid on one end of the shaft, and a weight member having an indicator is slidable along the shaft. A compression spring on the shaft engages the weight member to bias it toward one end of the shaft, to a starting position. The weight member has a pawl and the shaft has teeth cooperable with the pawl to hold the weight member in various adjusted positions remote from the starting position against the action of the compression spring. The shaft has a smooth track on which the pawl can alternately ride when the shaft is turned by the finger piece, thereby to enable return of the weight member to a starting position under the action of the compression spring.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: August 4, 1987
    Inventor: Sybil Maroth
  • Patent number: 4363488
    Abstract: A swing-force indicator for a playing piece of sports equipment, such as a golf club, racket, baseball bat or the like, comprising an elongate housing adapted to be attached to a portion of the piece. A weight is movable on the housing between retracted and extended positions against spring action, becoming extended due to centrifugal force when the piece is swung, and being held in any extended position by a releasable catch. Normally the weight is held retracted by a yieldable biasing means which acts counter to the centrifugal force. An indicator shows the degree of extension of the weight, and gives a reading that is proportional to the force of the swing.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: December 14, 1982
    Inventors: Arthur M. Maroth, Sybil Maroth
  • Patent number: 4270753
    Abstract: A golf club swing-force indicator comprising an elongate housing adapted to be attached to the shaft of a golf club. A weight is movable on the housing between retracted and extended positions against spring action, becoming extended due to centrifugal force when the club is swung, and being held in any extended position by a releasable catch. Normally the weight is held retracted by a yieldable biasing means which acts counter to the centrifugal force. An indicator shows the degree of extension of the weight, and gives a reading that is proportional to the force of the swing.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: June 2, 1981
    Inventors: Arthur M. Maroth, Sybil Maroth