Patents by Inventor Joseph R. LaFleur

Joseph R. LaFleur 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).

  • Cementing compositions
    Patent number: 4963191
    Abstract: There are disclosed high temperature refractory mixes especially adapted for relining and resizing chimney flues, comprising from 65 to 70 weight percent of portland cement, from 21 to 25 weight percent of volcanic glass, from 6 to 10 weight percent of microsilica, from 0.05 to 0.12 weight percent of at least one air entraining agent and from 0.5 to 1.0 weight percent of at least one plasticizer.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: October 16, 1990
    Assignee: Solid Flue Chimney Systems, Inc.
    Inventor: Joseph R. LaFleur