Patents by Inventor Donald J. DelGrande

Donald J. DelGrande 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: 4252847
    Abstract: A method for bonding the edges of pieces of stained glass, comprising the steps of applying adhesive to the edges, coating the adhesive with solderable metallic particles while the adhesive is still tacky, and, after the adhesive is cured, soldering the edges together, thereby joining the pieces of glass into a self-supporting structure. The method may also be utilized to solder a stained glass window directly into a frame. The adhesive is preferably a high-temperature resistant adhesive, and the solderable metallic particles are preferably a combination of copper granules and powder.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: February 24, 1981
    Inventor: Donald J. DelGrande
  • Patent number: 4172547
    Abstract: A method for joining conventionally unsolderable surfaces, comprising the steps of coating the surfaces with an adhesive, coating the adhesive with solderable metallic particles while the adhesive is tacky, and, after the adhesive is cured, soldering said surfaces together, the solder adhering to the metallic particles and forming a bond between the surfaces. The adhesive is preferably a high-temperature resistant adhesive. The solderable metallic particles are preferably a combination of granules and powder preferably of copper. The conventionally unsolderable surfaces include, but are not limited to, glass, porcelain, conventionally unsolderable metals such as steel, wood and paper products.
    Type: Grant
    Filed: November 2, 1978
    Date of Patent: October 30, 1979
    Inventor: Donald J. DelGrande