Patents by Inventor Roberto Spairani

Roberto Spairani 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).

  • Patent number: 11135663
    Abstract: A broaching unit for rules of die cutters which comprises a supporting structure, for example a frame, a guide of a die cutter rule, and a tool-holding arm equipped with at least one broaching tool is described. The guide defines a sliding surface on which the rule is fed intermittently. The tool-holding arm is mounted on the supporting structure and is susceptible to reciprocating movements with respect to it and with respect to the guide, preferably forward and backwards movements along a transversal direction of the rule, just to intercept the die cutter rule with the broaching tool when the rule is stopped. Advantageously, the tool-holding arm is equipped with at least two broaching tools, for example four tools, and can be oriented with respect to the guide, for example can rotate on itself, to selectively activate one of the broaching tools, i.e. to bring one of the tools into contact with the rule.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: October 5, 2021
    Assignee: Pro Form S.R.L.
    Inventors: Roberto Spairani, Secondo Spairani
  • Publication number: 20210229194
    Abstract: A broaching unit for rules of die cutters which comprises a supporting structure, for example a frame, a guide of a die cutter rule, and a tool-holding arm equipped with at least one broaching tool is described. The guide defines a sliding surface on which the rule is fed intermittently. The tool-holding arm is mounted on the supporting structure and is susceptible to reciprocating movements with respect to it and with respect to the guide, preferably forward and backwards movements along a transversal direction of the rule, just to intercept the die cutter rule with the broaching tool when the rule is stopped. Advantageously, the tool-holding arm is equipped with at least two broaching tools, for example four tools, and can be oriented with respect to the guide, for example can rotate on itself, to selectively activate one of the broaching tools, i.e. to bring one of the tools into contact with the rule.
    Type: Application
    Filed: April 16, 2019
    Publication date: July 29, 2021
    Inventors: Roberto SPAIRANI, Secondo SPAIRANI
  • Publication number: 20210170620
    Abstract: A method and apparatus which allow cutting-creasing rules (1) for die-cutters to be obtained from sections of cutting rules and sections of creasing rules are described.
    Type: Application
    Filed: July 4, 2019
    Publication date: June 10, 2021
    Inventors: Roberto Spairani, Secondo Spairani
  • Patent number: 8720245
    Abstract: A device and a process are described for bending a metallic strip (W) by means of bending tools (3, 4) which can rotate around a common axis (M) near a guide aperture (1) through which the metallic strip to be bent is fed. Controllable blocking means (5-8) are provided to lock the bending tools in positions mutually alongside the guide aperture when they are in the rest condition, and to release at least one of the bending tools in the operating condition in which the bending is performed.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: May 13, 2014
    Assignee: Pro Form S.R.L.
    Inventors: Roberto Spairani, Secondo Spairani
  • Patent number: 8079244
    Abstract: A device and method for bending a metallic strip (1), particularly for manufacturing die cutting blades. The bending tools (20, 30) are capable of being rotated about a common axis (15) and wherein each tool (20, 30) is further capable of being rotated about its own axis (25, 35) of rotation which is different from each others (15, 25, and 35).
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: December 20, 2011
    Assignee: Pro Form S.r.l.
    Inventors: Secondo Spairani, Roberto Spairani
  • Publication number: 20110107809
    Abstract: A device and a process are described for bending a metallic strip (W) by means of bending tools (3, 4) which can rotate around a common axis (M) near a guide aperture (1) through which the metallic strip to be bent is fed. Controllable blocking means (5-8) are provided to lock the bending tools in positions mutually alongside the guide aperture when they are in the rest condition, and to release at least one of the bending tools in the operating condition in which the bending is performed.
    Type: Application
    Filed: May 27, 2008
    Publication date: May 12, 2011
    Applicant: PRO FORM S.r.l.
    Inventors: Roberto Spairani, Secondo Spairani
  • Publication number: 20090188293
    Abstract: A device and method for bending a metallic strip are described, particularly for manufacturing die cutting blades, wherein the bending tools are capable of being rotated about a common axis and wherein each tool is further capable of being rotated about its own axis of rotation which is different from the others.
    Type: Application
    Filed: March 8, 2006
    Publication date: July 30, 2009
    Applicants: PRO FORM S.r.l.
    Inventors: Secondo Spairani, Roberto Spairani