Patents by Inventor Robert E. Mace

Robert E. Mace 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: 4867771
    Abstract: For an inside to outside dust collector, a self tensioning device for bag filters for connecting the upper end of a fabric sleeve filter to an overhead support. The device includes a modified double draw bar spring assembly interposed between the overhead support of the baghouse and the upper end of the bag filter. Prior to installation, the spring is compressed and captured by a retainer member. After installation, the retainer member may be removed and the spring flexed to appropriately tension the filter sleeve and to permit controlled flexure during cycling from a filtering to a cleaning operation.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: September 19, 1989
    Assignee: BHA Group, Inc.
    Inventors: James H. Brennecke, Robert E. Mace
  • Patent number: 4813985
    Abstract: For an inside to outside dust collector, a self tensioning device for bag filters for connecting the upper end of a fabric sleeve filter to an overhead support. The device includes a modified double draw bar spring assembly interposed between the overhead support of the baghouse and the upper end of the bag filter. Prior to installation, the spring is compressed and captured by a retainer member. After installation, the retainer member may be removed and the spring flexed to appropriately tension the filter sleeve and to permit controlled flexure during cycling from a filtering to a cleaning operation.
    Type: Grant
    Filed: February 13, 1987
    Date of Patent: March 21, 1989
    Assignee: BHA Group, Inc.
    Inventors: James H. Brennecke, Robert E. Mace
  • Patent number: 4671812
    Abstract: For an inside to outside dust collector, a self tensioning device for bag filters for connecting the upper end of a fabric sleeve filter to an overhead support. The device includes a modified double draw bar spring assembly interposed between the overhead support of the baghouse and the upper end of the bag filter. Prior to installation, the spring is compressed and captured by a retainer member. After installation, the retainer member may be removed and the spring flexed to appropriately tension the filter sleeve and to permit controlled flexure during cycling from a filtering to a cleaning operation.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: June 9, 1987
    Assignee: BHA Group, Inc.
    Inventors: James H. Brennecke, Robert E. Mace
  • Patent number: 4597783
    Abstract: For an inside to outside dust collector, a tensioning device for bag filters for connecting the upper end of a fabric sleeve filter to an overhead support. The device includes a modified double draw bar spring assembly having a conical spring therein interposed between the overhead support of the baghouse and the upper end of the bag filter. A retainer member engaging the large end of the conical spring receives therethrough the first and second draw bars to prevent binding of the spring assembly and to translate the conical spring force to uniform linear forces acting through the first and second draw bars to appropriately tension the filter sleeve and to permit controlled flexure during cycling from a filtering to a cleaning operation.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: July 1, 1986
    Assignee: Standard Havens, Inc.
    Inventors: James H. Brennecke, Robert E. Mace
  • Patent number: 4472183
    Abstract: Installation and maintenance equipment to tension a fabric sleeve filter supported from a bag support frame in a baghouse by a retainer rod and a tensioning spring. A tensioning tool is configured to be removably coupled to the retainer rod while compressing the tensioning spring to pull taut the fabric sleeve. A speed control regulates the speed at which the spring is compressed and a regulator determines the force applied to the spring. A pneumatic, hydraulic or electromechanical power source supplies the tensioning force.
    Type: Grant
    Filed: July 21, 1983
    Date of Patent: September 18, 1984
    Assignee: Standard Havens, Inc.
    Inventor: Robert E. Mace
  • Patent number: 4396408
    Abstract: Installation and maintenance equipment to tension a fabric sleeve filter supported from a bag support frame in a baghouse by a retainer rod and a tensioning spring. A pneumatic tool is configured to be removably coupled to the retainer rod while compressing the tensioning spring to pull taut the fabric sleeve. A flow control valve regulates the speed at which the spring is compressed and a pressure regulator determines the force applied to the spring.
    Type: Grant
    Filed: January 22, 1982
    Date of Patent: August 2, 1983
    Assignee: Standard Havens, Inc.
    Inventor: Robert E. Mace
  • Patent number: 4364758
    Abstract: For an inside to outside dust collector, a self tensioning bag retainer for connecting the upper end of a fabric sleeve filter to an overhead support. For preinstallation of the filter assembly, a compressed tensioning spring is retained from movement by a pin member to facilitate ease of installation. With the pin member removed, however, the spring acts upwardly against a retainer cap to appropriately tension the sleeve filter and to permit controlled flexure during cycling from a filtering to a cleaning operation.
    Type: Grant
    Filed: August 10, 1981
    Date of Patent: December 21, 1982
    Assignee: Standard Havens, Inc.
    Inventors: Jack T. Clements, Robert E. Mace
  • Patent number: D283537
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: April 22, 1986
    Assignee: Standard Havens, Inc.
    Inventor: Robert E. Mace
  • Patent number: D283538
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: April 22, 1986
    Assignee: Standard Havens, Inc.
    Inventor: Robert E. Mace