Patents Assigned to Rigon, S.P.A.
  • Boots of injection molded plastic and process therefor
    Patent number: 4255825
    Abstract: In the injection molding of plastic boots, a reinforced arch and heel construction is disclosed wherein a reinforced insole member, of comparatively rigid material formed in a single piece with a rigid heel portion, is incorporated into the two step process of molding the upper portion and then the sole portion of the boot. In one embodiment the reinforced member is molded to the boot upper during the first step of the molding process, and in an alternative embodiment the reinforcement member is incorporated into the boot during the second step of the molding process. A third simpler embodiment utilizes a conventional wood screw as the heel portion of the reinforcement member, and the member may be inserted after molding of the boot.
    Type: Grant
    Filed: June 6, 1979
    Date of Patent: March 17, 1981
    Assignee: Rigon, S.P.A.
    Inventor: Pietro L. Rigon
  • Boots of injection molded plastic
    Patent number: 4198769
    Abstract: In the injection molding of plastic boots, a reinforced arch and heel construction is disclosed wherein a reinforced insole member, of comparatively rigid material formed in a single piece with a rigid heel portion, is incorporated into the two step process of molding the upper portion and then the sole portion of the boot. In one embodiment the reinforced member is molded to the boot upper during the first step of the molding process, and in an alternative embodiment the reinforcement member is incorporated into the boot during the second step of the molding process. A third simpler embodiment utilizes a conventional wood screw as the heel portion of the reinforcement member, and the member may be inserted after molding of the boot.
    Type: Grant
    Filed: April 10, 1978
    Date of Patent: April 22, 1980
    Assignee: Rigon, S.P.A.
    Inventor: Pietro L. Rigon
  • Boot
    Patent number: D256178
    Type: Grant
    Filed: July 7, 1978
    Date of Patent: August 5, 1980
    Assignee: Rigon S.p.A.
    Inventor: Pietro L. Rigon
  • Display device for boots
    Patent number: D265030
    Type: Grant
    Filed: September 10, 1979
    Date of Patent: June 22, 1982
    Assignee: Rigon S.p.A.
    Inventor: Claudio Gallon