Patents by Inventor Jack A. Dawdy

Jack A. Dawdy 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).

  • Metal stud
    Patent number: 4324082
    Abstract: A metal stud, intended for use where the flanges on one side will be left exposed, having such exposed side flanges formed with an overlapped sheet metal portion, including an under flange and an over flange which are spaced apart to allow a cooling air flow therebetween, wherein the under flange includes means for providing a cooling flow of air or gases at the interface of the under flange and an adjacent gypsum board, which may be a rib in the under flange or a plurality of spaced apart holes in the under flange.
    Type: Grant
    Filed: November 8, 1979
    Date of Patent: April 13, 1982
    Assignee: National Gypsum Company
    Inventors: Edward J. Rutkowski, Carl R. Mapes, Steven D. Wing, Jack A. Dawdy
  • Method of mounting and demounting a wallboard wall
    Patent number: 4069640
    Abstract: A wall of gypsum wallboard adhered indirectly to studs, in which the studs have an intermediate material, which has a preplanned degree of weakness, affixed to the stud face, and to which material the wallboard is adhered, to hold it relative to the studs, whereby on removal of the wallboard, the relatively dried bead of adhesive is easily removed from the wallboard back side and/or the stud face, leaving both in condition for reuse with new adhesive, in constructing a new wall.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: January 24, 1978
    Assignee: National Gypsum Company
    Inventor: Jack A. Dawdy
  • Wallboard application method and apparatus therefor
    Patent number: 4056904
    Abstract: A temporary holding of wallboard against studs with adhesive therebetween, while the adhesive sets, involving an elongate semirigid rod removably affixed at one end to the stud, the other end projecting out from between the edges of two adjacent wallboards, and a retainer plate engaging the flexible rod and pressing the wallboards against the stud, the engagement of the plate with the rod being such that the rod prevents the plate from moving away from the wallboard until removal is desired.
    Type: Grant
    Filed: June 10, 1976
    Date of Patent: November 8, 1977
    Assignee: National Gypsum Company
    Inventor: Jack A. Dawdy
  • Removable wallboard tie
    Patent number: 3987595
    Abstract: Two adjacent sheets of wallboard are held firmly against a stud, until the adhesive between the wallboard and the stud becomes firm, by a tie wire which is removably held by two spaced apart staples in the stud, and by an elongate rigid block which is held against the face of the wallboards by tie wire.
    Type: Grant
    Filed: June 11, 1975
    Date of Patent: October 26, 1976
    Assignee: National Gypsum Company
    Inventors: Jack A. Dawdy, Rodney G. Buergin