Patents by Inventor Ted A. Folstad

Ted A. Folstad 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).

  • AIRFLOW MANAGEMENT SYSTEMS AND METHODS FOR FILTERED AIR SYSTEMS
    Publication number: 20240053045
    Abstract: Systems and methods for controlling operation of one or more fans of an air handling system having one or more filters or filter banks. A current air volume at an inlet side of the fan(s) is determined. In some embodiments, the inlet side air volume is determined via sensed pressure at the inlet side (e.g., pressure transducer open to a flow station at the inlet side). A controller operates to control or regulate a speed of the fan in a manner that maintains a constant air volume through the air handling system, for example based upon a comparison of the current air volume at the fan with a target air volume.
    Type: Application
    Filed: May 17, 2023
    Publication date: February 15, 2024
    Applicant: Precision Air Products Co.
    Inventor: Ted A. Folstad
  • Bolt connector assembly for bag house
    Patent number: 5928395
    Abstract: A connector assembly is provided. The connector assembly is particularly well adapted for connection of a tube top flange to a tube sheet, in a bag house or filter assembly. The connector assembly includes a bolt having a retainer construction or skirt thereon, to retain the bolt in place. The bolt has shank sections of different cross-sectional size, to advantage.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: July 27, 1999
    Assignee: Donaldson Company, Inc.
    Inventors: James R. Glen, Ted A. Folstad
  • Bolt connector assembly having retainer ring construction and reduced diameter shank portion
    Patent number: 5853442
    Abstract: A connector assembly is provided. The connector assembly is particularly well adapted for connection of a tube top flange to a tube sheet, in a bag house or filter assembly. The connector assembly includes a bolt having a retainer construction or skirt thereon, to retain the bolt in place. The bolt has shank sections of different cross-sectional size, to advantage.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: December 29, 1998
    Assignee: Donaldson Company, Inc.
    Inventors: James R. Glen, Ted A. Folstad