Patents by Inventor Richard L. Montgomery

Richard L. Montgomery 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).

  • Sewing machine with zipper cutter
    Patent number: 5070799
    Abstract: A sewing machine sews a continuous zipper chain to two fabric side pieces. An adjacent severing device severs the sewn article into discrete units of a length selected by the operator. Operator observation of the severing device and sewn article is achieved by a mirror mounted between the sewing machine and the severing device.
    Type: Grant
    Filed: January 9, 1991
    Date of Patent: December 10, 1991
    Assignee: Findlay Industries
    Inventors: Richard L. Montgomery, James E. Striff
  • Low shrinkage tape joint composition containing attapulgite
    Patent number: 4824879
    Abstract: The shrinkage of tape joint compounds, which normally comprise water, filler, and binding resin, is significantly reduced by minimizing the amount of water-absorbing materials such as attapulgite and hydroxyethyl cellulose. Comparable improvements can be made to spachtling compounds.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: April 25, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard L. Montgomery, Donald L. Robertson
  • Gel-resistant bubble-filled wall repair compound
    Patent number: 4629751
    Abstract: Gel-resistant composition especially suited for filling, patching or repairing plaster, gypsum board panels and the like comprising a blend of glass microbubbles containing borate, high molecular weight polyhydroxy compound such as polyvinyl alcohol functioning as a binder, water, and low molecular weight polyhydroxy compound in which at least two of the hydroxyl groups are attached to carbon atoms that are separated by one or more intervening carbon atoms.
    Type: Grant
    Filed: April 18, 1985
    Date of Patent: December 16, 1986
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Richard L. Montgomery