Patents by Inventor Felipe Artola

Felipe Artola 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).

  • Racket stringing tension measuring device
    Patent number: 5060524
    Abstract: A device to measure the tension of the stringing of rackets used for playing tennis, squash, etc. which entails an end area to strike the said stringing and another adjacent area which includes a multiple diapason or tuning device. On striking the stringing, and depending on the tension of the strings, one tooth of the multiple diapason vibrates, thus providing a signal which can later be measured or digitalized to provide a measurement of the tension of the stringing.
    Type: Grant
    Filed: April 11, 1990
    Date of Patent: October 29, 1991
    Assignee: Makser, S.A.
    Inventor: Felipe Artola
  • Racquet string tension measuring device
    Patent number: 5048352
    Abstract: A measuring device for measuring the degree of tension of stringing in a racquet for tennis, squash etc. where string deflecting force and string deflection in response to the force are measured. The useful or real efficiency of a specific racquet can then be determined independently of the degree of elasticity of the material used for stringing.
    Type: Grant
    Filed: November 16, 1989
    Date of Patent: September 17, 1991
    Assignee: Masker, S.A.
    Inventor: Felipe Artola Ugarte