Patents by Inventor Charles Michael Gryba

Charles Michael Gryba 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).

  • Undercut excavation method with continuous concrete floors
    Patent number: 9151047
    Abstract: The present invention provides a technique in undercut excavation that allows a continuous steel reinforced concrete floor to be set up or installed over a large width and length and installing continuous steel reinforced concrete floors in any subsequent lifts. Using the present invention, the continuous concrete floor can be extended at a later date if the stopping area is extended at some future date.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: October 6, 2015
    Assignee: 2341451 Ontario Inc.
    Inventor: Charles Michael Gryba
  • UNDERCUT EXCAVATION METHOD WITH CONTINUOUS CONCRETE FLOORS
    Publication number: 20140237936
    Abstract: The present invention provides a technique in undercut excavation that allows a continuous steel reinforced concrete floor to be set up or installed over a large width and length and installing continuous steel reinforced concrete floors in any subsequent lifts. Using the present invention, the continuous concrete floor can be extended at a later date if the stopping area is extended at some future date.
    Type: Application
    Filed: October 11, 2012
    Publication date: August 28, 2014
    Applicant: 2341451 ONTARIO INC.
    Inventor: Charles Michael Gryba