Patents by Inventor John L. Langsdorf

John L. Langsdorf 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).

  • Conveyor carousel with distributed drive system
    Patent number: 7621392
    Abstract: A carousel according to the invention uses a number of smaller, less expensive drive units at different locations along the carousel path in place of a single larger drive unit of comparable capacity. Closed loop control according to the invention allows individual drives to be de-energized when the power requirements do not demand their usage. When not energized, the drives may be disengaged from the chain, such as by way of a linear actuator as described hereafter. Benefits of such a system include reduced mechanical costs, longer drive life, better redundancy/higher availability, correct drive power, lower energy use, closed loop system monitoring and reduced collateral damage.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: November 24, 2009
    Assignee: Siemens Industry, Inc.
    Inventors: John L. Langsdorf, Gojko Valencic
  • CONVEYOR CAROUSEL WITH DISTRIBUTED DRIVE SYSTEM
    Publication number: 20080296130
    Abstract: A carousel according to the invention uses a number of smaller, less expensive drive units at different locations along the carousel path in place of a single larger drive unit of comparable capacity. Closed loop control according to the invention allows individual drives to be de-energized when the power requirements do not demand their usage. When not energized, the drives may be disengaged from the chain, such as by means of a linear actuator as described hereafter. Benefits of such a system include reduced mechanical costs, longer drive life, better redundancy/higher availability, correct drive power, lower energy use, closed loop system monitoring and reduced collateral damage.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Applicant: SIEMENS ENERGY & AUTOMATION, INC.
    Inventors: John L. Langsdorf, Gojko Valencic
  • Conveyor carousel with distributed drive system
    Patent number: RE43887
    Abstract: A carousel according to the invention uses a number of smaller, less expensive drive units at different locations along the carousel path in place of a single larger drive unit of comparable capacity. Closed loop control according to the invention allows individual drives to be de-energized when the power requirements do not demand their usage. When not energized, the drives may be disengaged from the chain, such as by way of a linear actuator as described hereafter. Benefits of such a system include reduced mechanical costs, longer drive life, better redundancy/higher availability, correct drive power, lower energy use, closed loop system monitoring and reduced collateral damage.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: January 1, 2013
    Assignee: Siemens Industry, Inc.
    Inventors: John L. Langsdorf, Gojko Valencic