Patents by Inventor Ugo Pignatti

Ugo Pignatti 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).

  • Sewing machine attachment for edgings and collars
    Patent number: 4271772
    Abstract: A device for quickly sewing finishing elements such as edgings and collars onto knitted outerwear articles to be applied on chainstitch sewing machines comprises: (a) a braking member for the finishing element effective to maintain it in a tensioned or stretched condition; (b) a folding or bending member effective to fold or bend said finishing element, and (c) a feeding member effective to feed the folded or bent finishing element and the knitted article, under the foot of the sewing machine. The braking member is formed by a curved rod, onto the bottom of which presses a blade spring, and by two parallel vertical rods located upstream of the first rod, the finishing element passing at first between said two rods and then, together with the selvedge, between the curved rod and blade spring. The pressure exerted by the blade spring on the rod may be adjusted by a screw provided with a spring.
    Type: Grant
    Filed: September 11, 1978
    Date of Patent: June 9, 1981
    Inventor: Ugo Pignatti
  • Attachment for sewing borders and collars on knitted garments
    Patent number: 3974788
    Abstract: A sewing arrangement is mounted on chain-stitch sewing machines to permit efficient sewing of borders and collars on knitted garments.
    Type: Grant
    Filed: June 18, 1974
    Date of Patent: August 17, 1976
    Inventors: Ugo Pignatti, Giuliano Scacchetti