Patents by Inventor Girolamo Prandini

Girolamo Prandini 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).

  • Control unit for “pilgrim step” operation of the detaching cylinders in a combing machine
    Patent number: 6393666
    Abstract: A control unit (10) for “pilgrim step” operation of the detaching cylinders (22, 23) in a combing machine, comprising a first electric motor, which rotates the circular comb (18) of the combing machine with uniform motion and a second electric motor (11), rotating a shaft (12), which houses the components to transmit motion to the detaching cylinders (22, 23). The first electric motor also operates at least one of the components that transmit motion to the detaching cylinders (22, 23), and the motor (11) is operated with a law of motion comprising acceleration and deceleration phases. Both motors mesh at all times and the first motor operates the components to transmit motion to the detaching cylinders (22, 23) by means of a differential device to obtain motion of the “pilgrim step” type.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: May 28, 2002
    Inventors: Angelo Verzegnassi, Sergio Benetti, Girolamo Prandini, Giovanni Battista Pasini
  • Control unit for "pilgrim step" operation of the detaching cylinders in a combing machine
    Publication number: 20010027590
    Abstract: A control unit (10) for “pilgrim step” operation of the detaching cylinders (22, 23) in a combing machine, comprising a first electric motor, which rotates the circular comb (18) of the combing machine with uniform motion and a second electric motor (11), rotating a shaft (12), which houses the components to transmit motion to the detaching cylinders (22, 23). The first electric motor also operates at least one of the components that transmit motion to the detaching cylinders (22, 23), and the motor (11) is operated with a law of motion comprising acceleration and deceleration phases. Both motors mesh at all times and the first motor operates the components to transmit motion to the detaching cylinders (22, 23) by means of a differential device to obtain motion of the “pilgrim step” type.
    Type: Application
    Filed: April 6, 2001
    Publication date: October 11, 2001
    Inventors: Angelo Verzegnassi, Sergio Benetti, Girolamo Prandini, Giovanni Battista Pasini
  • Method and device for automatically replacing the lap, preparing and joining its edges and restarting it in a combing machine
    Patent number: 6167595
    Abstract: A method and device substitutes, prepares and joins laps in a combing machine, in which the preparation of an edge of a new lap package is made by holding fast the package in an unwinding position, while handling its clamped and crimped edge in a tearing manner.
    Type: Grant
    Filed: January 6, 2000
    Date of Patent: January 2, 2001
    Assignee: Marzoli S.p.A.
    Inventors: Girolamo Prandini, Giovanni Battista Pasini
  • Device for controlling textile fibers floating through drawing cylinders in a combing machine
    Patent number: 5996183
    Abstract: A device for controlling textile fibers floating through drawing cylinders in a combing machine comprises a plurality of drawing rollers on each of which a rubber roller is pressed, the device further comprising a stationary rod which can be applied, with an adjustable height, to the drawing cylinder assembly, and having a rod contour having a circle arch cross-section facing one of the drawing roller to press on the sliver being drawn, the rod being arranged between the second and third rubber rollers therethrough the sliver passes, the circle arch cross-section contour facing the third drawing roller.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: December 7, 1999
    Inventors: Girolamo Prandini, Giovanni Battista Pasini