Patents by Inventor Duane A. Bennett

Duane A. Bennett 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).

  • Apparatus for dispensing pavement sealants
    Patent number: 7214907
    Abstract: Apparatus and methods for applying heated sealants, such as molten polymeric material, to surfaces such as for filling cracks in pavement surfaces. Aspects of the invention include block cutting assembly, heated dispensing hose, and crack filling applicator head. By way of example, the block cutting assembly comprises a ram device for driving sealant blocks against a heated cutting member which severs the blocks to speed liquefaction within the heated sealant chamber. An associated enclosure incorporates a loading door preferably configured for operation in response to the position of the ram device. The heated dispensing hose may comprise a heating element running through the interior of the hose to heat sealants as they pass through the hose. The crack filling applicator head comprises a dispensing tube upon which a sealing chamber is coupled for retaining a quantity of liquid sealant proximal to the pavement surface being filled.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: May 8, 2007
    Assignee: The Regents of the University of California
    Inventors: Steven A. Velinsky, Duane A. Bennett
  • Apparatus for dispensing pavement sealants
    Patent number: 6809294
    Abstract: Apparatus and methods for applying heated sealants, such as molten polymeric material, to surfaces such as for filling cracks in pavement surfaces. Aspects of the invention include block cutting assembly, heated dispensing hose, and crack filling applicator head. By way of example, the block cutting assembly comprises a ram device for driving sealant blocks against a heated cutting member which severs the blocks to speed liquefaction within the heated sealant chamber. An associated enclosure incorporates a loading door preferably configured for operation in response to the position of the ram device. The heated dispensing hose may comprise a heating element running through the interior of the hose to heat sealants as they pass through the hose. The crack filling applicator head comprises a dispensing tube upon which a sealing chamber is coupled for retaining a quantity of liquid sealant proximal to the pavement surface being filled.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: October 26, 2004
    Assignee: The Regents of the University of California
    Inventors: Steven A. Velinsky, Duane A. Bennett
  • Apparatus for dispensing pavement sealants
    Publication number: 20040155022
    Abstract: Apparatus and methods for applying heated sealants, such as molten polymeric material, to surfaces such as for filling cracks in pavement surfaces. Aspects of the invention include block cutting assembly, heated dispensing hose, and crack filling applicator head. By way of example, the block cutting assembly comprises a ram device for driving sealant blocks against a heated cutting member which severs the blocks to speed liquefaction within the heated sealant chamber. An associated enclosure incorporates a loading door preferably configured for operation in response to the position of the ram device. The heated dispensing hose may comprise a heating element running through the interior of the hose to heat sealants as they pass through the hose. The crack filling applicator head comprises a dispensing tube upon which a sealing chamber is coupled for retaining a quantity of liquid sealant proximal to the pavement surface being filled.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 12, 2004
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Steven A. Velinsky, Duane A. Bennett