Patents Represented by Attorney Michael A. Lyon & Lyon LLC Catania
  • Patent number: 6132323
    Abstract: An improved shaft for a golf club and methods of manufacturing the same. A plurality of layers of composite fiber bound within a thermoset resin are bonded to one or more layers of composite fiber bound within a thermoplastic resin using a high peel strength nylon epoxy adhesive. Preferably, the layer(s) of composite fiber bound within the thermoplastic resin comprise the outermost layer of a golf club shaft.In one preferred form, a plurality of plies of pre-preg composite sheet including a thermoset resin are wrapped around a mandrel and pre-cured. Thereafter, a layer of adhesive is wrapped over the pre-cured plies, at least one ply of pre-preg composite sheet including a thermoplastic resin is wrapped over the adhesive, and a cellophane or polypropylene tape is wrapped over the outermost layer of pre-preg. Thereafter, the ply wrapped mandrel is placed in a mold and heated to a predetermined temperature for a time sufficient to allow curing of all of the plies comprising the golf club shaft.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: October 17, 2000
    Assignee: Callaway Golf Company
    Inventors: Brian S. Smith, Herbert Reyes, James M. Murphy
  • Patent number: 6093116
    Abstract: A golf club head having a face insert plate. The face insert plate is affixed to a faceplate mounting surface wherein a plurality of channels are formed. The channels preferably have a depth that is increased in a lower region of a face of the club head. An elastomeric binding material and damping agent is provided within the channels to affix the face insert plate to the face plate mounting surface and to provide a vibration damping function. In a preferred form, the faceplate mounting surface comprises a base wall of a face insert receiving cavity or recess that is formed within a main body of the club head.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: July 25, 2000
    Assignee: Callaway Golf Company
    Inventors: Ronald K. Hettinger, J. Neil Hall, Ruben Ruiz