Patents by Inventor Roy A. Fredrickson

Roy A. Fredrickson 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: 10388942
    Abstract: A battery grid pasting machine includes a support structure, a battery grid plate support for supporting a battery grid plate, a paste dispensing hopper, a height adjustment mechanism for adjusting the spacing between the hopper and the battery grid plate support and a control system. The height adjustment mechanism includes a hydraulic cylinder connected to the hopper and a position sensor for sensing the position of the hydraulic cylinder. The control system includes a first hydraulic pump and a first hydraulic valve associated with the first hydraulic pump for incrementally moving the hydraulic cylinder by a first specified distance and a second hydraulic pump and a second hydraulic valve associated with the second hydraulic pump for incrementally moving the hydraulic cylinder by a second specified distance.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: August 20, 2019
    Assignee: MAC Engineering and Equipment Company, Inc.
    Inventor: Roy A. Fredrickson
  • Publication number: 20190067673
    Abstract: A battery grid pasting machine includes a support structure, a battery grid plate support for supporting a battery grid plate, a paste dispensing hopper, a height adjustment mechanism for adjusting the spacing between the hopper and the battery grid plate support and a control system. The height adjustment mechanism includes a hydraulic cylinder connected to the hopper and a position sensor for sensing the position of the hydraulic cylinder. The control system includes a first hydraulic pump and a first hydraulic valve associated with the first hydraulic pump for incrementally moving the hydraulic cylinder by a first specified distance and a second hydraulic pump and a second hydraulic valve associated with the second hydraulic pump for incrementally moving the hydraulic cylinder by a second specified distance.
    Type: Application
    Filed: August 30, 2017
    Publication date: February 28, 2019
    Applicant: MAC Engineering and Equipment Company, Inc.
    Inventor: Roy A. Fredrickson
  • Patent number: 8375997
    Abstract: An apparatus and method operations are provided for battery plate fabrication, in particular for applying paste to battery plate grids. A conveyer-type pasting machine includes a conveyer belt for moving battery plate grids under a new type of paste dispensing hopper, which includes closely spaced knurled rollers and an angled paste deflector member, which cooperate to generate a pressurized stream of paste for extrusion thru the battery plate grid. The apparatus also includes a specialized grid support sheet that also enables a consistent layer of paste to be applied to both exterior sides of a manufactured battery plate grid by enabling application of paste to one side of the grid and facilitating transmission of the paste through to and past the opposite, exterior side of the grid.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: February 19, 2013
    Assignee: MAC Engineering and Equipment Company, Inc.
    Inventor: Roy A. Fredrickson
  • Publication number: 20120282393
    Abstract: An apparatus and method operations are provided for battery plate fabrication, in particular for applying paste to battery plate grids. A conveyer-type pasting machine includes a conveyer belt for moving battery plate grids under a new type of paste dispensing hopper, which includes closely spaced knurled rollers and an angled paste deflector member, which cooperate to generate a pressurized stream of paste for extrusion thru the battery plate grid. The apparatus also includes a specialized grid support sheet that also enables a consistent layer of paste to be applied to both exterior sides of a manufactured battery plate grid by enabling application of paste to one side of the grid and facilitating transmission of the paste through to and past the opposite, exterior side of the grid.
    Type: Application
    Filed: July 9, 2012
    Publication date: November 8, 2012
    Applicant: MAC ENGINEERING AND EQUIPMENT COMPANY, INC.
    Inventor: Roy A. Fredrickson
  • Patent number: 8272408
    Abstract: An apparatus and method operations are provided for battery plate fabrication, in particular for applying paste to battery plate grids. A conveyer-type pasting machine includes a conveyer belt for moving battery plate grids under a new type of paste dispensing hopper, which includes closely spaced knurled rollers and an angled paste deflector member, which cooperate to generate a pressurized stream of paste for extrusion thru the battery plate grid. The apparatus also includes a specialized grid support sheet that also enables a consistent layer of paste to be applied to both exterior sides of a manufactured battery plate grid by enabling application of paste to one side of the grid and facilitating transmission of the paste through to and past the opposite, exterior side of the grid.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: September 25, 2012
    Assignee: Mac Engineering and Equipment Company, Inc.
    Inventor: Roy A. Fredrickson
  • Publication number: 20090255604
    Abstract: An apparatus and method operations are provided for battery plate fabrication, in particular for applying paste to battery plate grids. A conveyer-type pasting machine includes a conveyer belt for moving battery plate grids under a new type of paste dispensing hopper, which includes closely spaced knurled rollers and an angled paste deflector member, which cooperate to generate a pressurized stream of paste for extrusion thru the battery plate grid. The apparatus also includes a specialized grid support sheet that also enables a consistent layer of paste to be applied to both exterior sides of a manufactured battery plate grid by enabling application of paste to one side of the grid and facilitating transmission of the paste through to and past the opposite, exterior side of the grid.
    Type: Application
    Filed: April 9, 2008
    Publication date: October 15, 2009
    Applicant: MAC ENGINEERING AND EQUIPMENT COMPANY, INC.
    Inventor: Roy A. Fredrickson
  • Patent number: 4878521
    Abstract: An apparatus for dividing a multi-unit battery plate grid into individual battery plate grids and for subsequently applying paste to the individual battery plate grids, which apparatus comprises a pasting device for applying paste to the grids, a parter located upstream of the pasting device for dividing multi-unit battery plate grids into individual battery plate grids prior to pasting thereof, and a conveyor for feeding multi-unit battery plate grids through the parter and for thereafter feeding the individual battery plate grids through the pasting device. Also disclosed herein is a method of dividing a multi unit battery plate grid including at least two connected individual battery plate grids into separated individual battery plate grids and of subsequently pasting the separated individual battery plate grids, which method comprises the steps of dividing the multi-unit battery plate grid into separated individual battery plate grids, and thereafter pasting the individual separated battery plate grids.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: November 7, 1989
    Assignee: Mac Engineering & Equipment Company, Inc.
    Inventor: Roy A. Fredrickson