Patents by Inventor Cal L. Couillard

Cal L. Couillard 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 and apparatus for an improved roller system for calender machines
    Patent number: 5985088
    Abstract: An improved pull-roller system for a calender machine having at least a pair of main rollers and a pair of pull-rollers. The nip of the pull-rollers is located at an elevation below the nip of the main rollers. In addition, the axis of the top pull-roller is offset with respect to the axis of the bottom pull-roller.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: November 16, 1999
    Assignee: Hunt Holdings, Inc.
    Inventors: Cal L. Couillard, Bruce Adams
  • Method and apparatus for an improved roller system for calender machines
    Patent number: 5810967
    Abstract: An improved pull-roller system for a calender machine having at least a pair of main rollers and a pair of pull-rollers. The nip of the pull-rollers is located at an elevation below the nip of the main rollers. In addition, the axis of the top pull-roller is offset with respect to the axis of the bottom pull-roller.
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: September 22, 1998
    Assignee: Hunt Holdings, Inc.
    Inventors: Cal L. Couillard, Bruce Adams
  • Method and apparatus for an improved roller system for calendar machines
    Patent number: 5643391
    Abstract: An improved pull-roller system for a calender machine having at least a pair of main rollers and a pair of pull-rollers. The nip of the pull-rollers is located at an elevation below the nip of the main rollers. In addition, the axis of the top pull-roller is offset with respect to the axis of the bottom pull-roller.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: July 1, 1997
    Assignee: Hunt Holdings, Inc.
    Inventors: Cal L. Couillard, Bruce Adams
  • Method and apparatus for an improved roller system for calender machines
    Patent number: RE36198
    Abstract: An improved pull-roller system for a calender machine having at least a pair of main rollers and a pair of pull-rollers. The nip of the pull-rollers is located at an elevation below the nip of the main rollers. In addition, the axis of the top pull-roller is offset with respect to the axis of the bottom pull-roller.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: April 27, 1999
    Assignee: Hunt Holdings, Inc.
    Inventors: Cal L. Couillard, Bruce Adams