Patents by Inventor Daniel D. Bax

Daniel D. Bax 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 for venting gas in the event of an explosion in a space covered by a manhole cover
    Patent number: 8851789
    Abstract: A closure is adapted to limit damage from a gas explosion in an underground space. The closure includes a telescoping sleeve having a plurality of vents extending radially through the sleeve. The sleeve defines a manhole extending axially through the sleeve so a person can enter the underground space through the manhole. A manhole cover is moveable to a closed position in which the cover is supported on an upper end of the sleeve and covers the manhole. The sleeve can be received in an opening of a frame of a manhole installation so the sleeve is moveable by gas pressure to an extended position in which gas from the underground space can be vented through the sleeve to an aboveground space. If desired, the sleeve can be installed in an existing manhole installation to upgrade the installation to have an explosion mitigation capability without replacing the conventional manhole cover.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: October 7, 2014
    Assignee: Ameren Corporation
    Inventor: Daniel D. Bax
  • SYSTEMS AND METHODS FOR VENTING GAS IN THE EVENT OF AN EXPLOSION IN A SPACE COVERED BY A MANHOLE COVER
    Publication number: 20130089373
    Abstract: A closure is adapted to limit damage from a gas explosion in an underground space. The closure includes a telescoping sleeve having a plurality of vents extending radially through the sleeve. The sleeve defines a manhole extending axially through the sleeve so a person can enter the underground space through the manhole. A manhole cover is moveable to a closed position in which the cover is supported on an upper end of the sleeve and covers the manhole. The sleeve can be received in an opening of a frame of a manhole installation so the sleeve is moveable by gas pressure to an extended position in which gas from the underground space can be vented through the sleeve to an aboveground space. If desired, the sleeve can be installed in an existing manhole installation to upgrade the installation to have an explosion mitigation capability without replacing the conventional manhole cover.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 11, 2013
    Applicant: AMEREN CORPORATION
    Inventor: Daniel D. Bax