Patents by Inventor James C. Piotrowski

James C. Piotrowski 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).

  • Systems and methods of manufacturing flexible spring members for gas spring assemblies
    Patent number: 11390484
    Abstract: Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: July 19, 2022
    Assignee: Firestone Industrial Products Company, LLC
    Inventor: James C. Piotrowski
  • SYSTEMS AND METHODS OF MANUFACTURING FLEXIBLE SPRING MEMBERS FOR GAS SPRING ASSEMBLIES
    Publication number: 20200031607
    Abstract: Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.
    Type: Application
    Filed: July 15, 2019
    Publication date: January 30, 2020
    Inventor: James C. Piotrowski
  • Systems and methods of manufacturing flexible spring members for gas spring assemblies
    Patent number: 10358315
    Abstract: Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: July 23, 2019
    Assignee: Firestone Industrial Products Company, LLC
    Inventor: James C. Piotrowski
  • SYSTEMS AND METHODS OF MANUFACTURING FLEXIBLE SPRING MEMBERS FOR GAS SPRING ASSEMBLIES
    Publication number: 20170283210
    Abstract: Systems include a creel assembly supporting a plurality of spools containing at least one cord having an indeterminate length such that a plurality of cords are supported on the creel assembly. A tensioner assembly operative to tension approximately equal predetermined lengths of the plurality of cords received from the creel assembly. A building mandrel supported for rotation and translation. A head assembly supported in fixed relation to the building mandrel. The head assembly is positioned co-axially such that the building mandrel can pass through an opening in the head assembly during translation. Methods of manufacture are included, as are flexible spring members and gas spring assemblies.
    Type: Application
    Filed: March 31, 2017
    Publication date: October 5, 2017
    Inventor: James C. Piotrowski