Patents Assigned to Toby's Chemical Company
  • Method and compound for clearing flora from sewer lines using organic herbicides
    Patent number: 5069706
    Abstract: The present invention includes a herbicide having a phytocidal effect on roots and the like, and a foaming agent. The foaming agent consists of gas releasing compound and a surfactant or detergent. To inhibit the growth of flora in or around sewer lines this mixture may be flushed into a sewer line. The gas releasing acts as a carrier of the herbicide through the sewer line. Roots or the like growing within the sewer line are coated with the herbicide carrying foaming agent.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: December 3, 1991
    Assignee: Toby's Chemical Company
    Inventor: Timothy W. Tobiason
  • Method and apparatus for clearing flora from sewer lines
    Patent number: 5062878
    Abstract: The present invention includes a herbicide having a phytocidal effect on roots and the like, and a foaming agent. The foaming agent consists of a gas releasing compound and a surfactant or detergent. To inhibit the growth of flora in or around sewer lines this mixture may be flushed into a sewer line. The gas releasing compound causes the surfactant or detergent to foam, and the foam acts as a carrier of the herbicide through the sewer line. Roots or the like growing within the sewer line are coated with the herbicide carrying foaming agent.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: November 5, 1991
    Assignee: Toby's Chemical Company
    Inventor: Timothy W. Tobiason