Patents by Inventor Francois Viollaz

Francois Viollaz 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).

  • Iron type golf club head
    Patent number: 5447311
    Abstract: Golf club head of the "iron" type, comprising a head body constituted by a shell (3) formed by a series of metal walls (9,10, 11) forming an inner cavity (4). The front wall (9) belonging to the series of metal walls is (AR) in relation to the hitting plane (P) in order to house a hitting wall (7) made of plastic or composite material.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: September 5, 1995
    Assignee: Taylor Made Golf Company, Inc.
    Inventors: Francois Viollaz, Robert Maestri
  • Golf club head having a fiber-based composite impact wall
    Patent number: 5425538
    Abstract: A golf club head including an outside lower portion intended to rest on the ground, constituting the sole, a substantially plane front portion constituting the impact surface, and a rear portion constituting the body, wherein the club head includes an internal cavity limited at least partially by the walls of a steel shell in the lower and rear portion, and that at least the impact surface is a fiber-based composite material of which the modulus of the elasticity is greater than or equal 230 GPa.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: June 20, 1995
    Assignee: Taylor Made Golf Company, Inc.
    Inventors: Benoit Vincent, Francois Viollaz
  • Process for manufacture of a golf club head comprising a mounted hitting surface
    Patent number: 5377986
    Abstract: Process for manufacture of a golf club head incorporating a mounted hitting surface, comprising the steps of producing the body of the head from a series of metal plates, i.e., an upper plate, a lower plate, a peripheral plate, and a front plate comprising the front support face; bonding on its support face a hitting plate made of a plastic or composite material; and imparting to the hitting surface of the plate its final curved shape, which is convex toward the front.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: January 3, 1995
    Assignee: Taylor Made Golf Company, Inc.
    Inventors: Francois Viollaz, Robert Maestri
  • Golf club head and processes for its manufacture
    Patent number: 5310185
    Abstract: Golf club head comprising a shell extended laterally by a neck, said shell being constituted by a series of metal plates forming an interior cavity, whose front plate incorporates a support surface to which a hitting plate made of a plastic or composite material is attached. The support face of the front plate is a convex surface extending forward, and the hitting plate associated with it is such that its rear plate, which is supported on the support face, has a matching shape, while the hitting surface is a convex surface extending forward.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: May 10, 1994
    Assignee: Taylor Made Golf Company
    Inventors: Francois Viollaz, Benoit Vincent
  • Golf ball
    Patent number: 5253871
    Abstract: The invention concerns a golf ball constituted of a three part structure, constituted of an elastomer core, an intermediate layer, and a thermoplastic envelope. The intermediate layer is made of a thermoplastic material containing at least 10%, and preferably at least 35% of ether block copolymer. The material may also be advantageously constituted of ether block copolymer to which is added 0 to 90% of ionomer(s) with respect to the total weight of the compound.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: October 19, 1993
    Assignee: Taylor Made Golf Company, Inc.
    Inventor: Francois Viollaz
  • Golf club head
    Patent number: D357290
    Type: Grant
    Filed: August 11, 1993
    Date of Patent: April 11, 1995
    Assignee: Taylor Made Golf Company Inc.
    Inventors: Francois Viollaz, Steven Brouillette