Patents by Inventor Dennis O. Cates

Dennis O. Cates 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).

  • Patent number: 6634149
    Abstract: Construction and remodeling of a cleanroom wall system is facilitated with a universal stud design. A variety of wall configurations may be assembled with the same stud. Also provided is a useful connector block for joining perpendicularly oriented studs, or for splicing together axially aligned studs. A corner stud is also provided, as well as a deflection track for connecting the top track of a wall panel to a conventional ceiling grid to allow deflection of the grid relative to the wall and to facilitate easy access to the portion of the ceiling immediately above the wall panel.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: October 21, 2003
    Inventors: Dennis O. Cates, Roger K. Crawford
  • Patent number: 6615556
    Abstract: The present invention provides a stud component of a cleanroom wall system that, in addition to supporting wall panels also supports a door, thereby doing away with the need for a separate, standard doorframe. Thus, the universal nature of the wall and door stud components substantially reduces the material and labor cost associated with acquiring and constructing doorframes in a cleanroom wall system.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: September 9, 2003
    Inventors: Dennis O. Cates, Roger K. Crawford
  • Publication number: 20030024179
    Abstract: The present invention provides a stud component of a cleanroom wall system that, in addition to supporting wall panels also supports a door, thereby doing away with the need for a separate, standard doorframe. Thus, the universal nature of the wall and door stud components substantially reduces the material and labor cost associated with acquiring and constructing doorframes in a cleanroom wall system.
    Type: Application
    Filed: July 31, 2001
    Publication date: February 6, 2003
    Inventors: Dennis O. Cates, Roger K. Crawford
  • Publication number: 20010007186
    Abstract: Construction and remodeling of a cleanroom wall system is facilitated with a universal stud design. A variety of wall configurations may be assembled with the same stud. Also provided is a useful connector block for joining perpendicularly oriented studs, or for splicing together axially aligned studs. A corner stud is also provided, as well as a deflection track for connecting the top track of a wall panel to a conventional ceiling grid to allow deflection of the grid relative to the wall and to facilitate easy access to the portion of the ceiling immediately above the wall panel.
    Type: Application
    Filed: February 16, 2001
    Publication date: July 12, 2001
    Inventors: Dennis O. Cates, Roger K. Crawford
  • Patent number: 6209275
    Abstract: Construction and remodeling of a cleanroom wall system is facilitated with a universal stud design. A variety of wall configurations may be assembled with the same stud. Also provided is a useful connector block for joining perpendicularly oriented studs, or for splicing together axially aligned studs. A corner stud is also provided, as well as a deflection track for connecting the top track of a wall panel to a conventional ceiling grid to allow deflection of the grid relative to the wall and to facilitate easy access to the portion of the ceiling immediately above the wall panel.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: April 3, 2001
    Assignee: Southland Industries
    Inventors: Dennis O. Cates, Roger K. Crawford
  • Patent number: 5414967
    Abstract: A wall system for clean rooms employs an elongated framing member having four channels each with a thread slot in the bottom of the channel. This four channel arrangement facilitates the concealment of the fasteners and brackets used to join framing members to one another.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: May 16, 1995
    Assignee: Unistrut International Corp.
    Inventors: Dennis O. Cates, Randy Webb, Roger Crawford, Ron Jackson, Mary K. Rossman