Patents by Inventor Jukka Paasivaara

Jukka Paasivaara 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).

  • Method for measuring the deflection in the shaft of a golf club for controlling the dynamic loft angle of a club
    Patent number: 5379641
    Abstract: The invention relates to a method for measuring the deflection in a golf club shaft (3) for controlling the dynamic loft angle of a shaft. The method comprises the steps of fixedly clamping a shaft (3) at a certain distance from a club head (5), setting club head (5) in vibration, and measuring the vibration frequency while shaft (3) is clamped at the clamping distance. This is followed by releasing the shaft (3) from clamping and by repeating the above actions at varying distances from the club head (5) and by using the thus obtained measuring results for setting up a frequency profile for shaft (3).
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: January 10, 1995
    Assignee: Exel Oy
    Inventors: Jukka Paasivaara, Matti Suominen, Pekka Tiikkainen