Patents by Inventor Dennis MacDonald

Dennis MacDonald 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: 11598911
    Abstract: Embodiments described herein relate to a system for positioning indicator lights of a network device. The system may include a circuit board, which may include a circuit board edge positioned behind a front panel of the network device, two surfaces; and a side of the circuit board edge positioned between the two surfaces. The system may also include a hole through the circuit board near the circuit board edge, a cutout extending from a portion of the hole to the side of the circuit board edge, a LED coupled to the surface of the circuit board and adapted to emit light into the hole, and a lightpipe disposed in the hole to receive light emitted from the LED into a first end of the lightpipe. The lightpipe may direct the light from a second end of the lightpipe toward an opening in the front panel of the network device.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: March 7, 2023
    Assignee: Arista Networks, Inc.
    Inventors: Matthew Albert Moe, Robert Morris Wilcox, Richard Neville Hibbs, Tiong Khai Soo, Xing Wang, James Dennis MacDonald, Clifford Bryant Willis
  • Publication number: 20230066177
    Abstract: Embodiments described herein relate to a system for positioning indicator lights of a network device. The system may include a circuit board, which may include a circuit board edge positioned behind a front panel of the network device, two surfaces; and a side of the circuit board edge positioned between the two surfaces. The system may also include a hole through the circuit board near the circuit board edge, a cutout extending from a portion of the hole to the side of the circuit board edge, a LED coupled to the surface of the circuit board and adapted to emit light into the hole, and a lightpipe disposed in the hole to receive light emitted from the LED into a first end of the lightpipe. The lightpipe may direct the light from a second end of the lightpipe toward an opening in the front panel of the network device.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 2, 2023
    Inventors: Matthew Albert Moe, Robert Morris Wilcox, Richard Neville Hibbs, Tiong Khai Soo, Xing Wang, James Dennis MacDonald, Clifford Bryant Willis
  • Patent number: 10087081
    Abstract: The invention provides a method for improving the effectiveness of colloidal silica. The method involves removing enough charged impurities from the colloid to prevent the charged particles from causing the colloid to become a viscous gel. The method however also involves not removing too many charged particles so the silica material doesn't gel by cross-linking with itself. This method is quite effective because it recognizes that materials that have accumulated during the formation of the colloid do perform an important function, but they can perform better at a lower concentration.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: October 2, 2018
    Assignee: ECOLAB USA INC.
    Inventors: Jane B. Wong Shing, Zhi Chen, Dennis MacDonald, Ronald S. Doles, Wen Bai, Raymond D. Miller, Jr.
  • Publication number: 20140251565
    Abstract: The invention provides a method for improving the effectiveness of colloidal silica. The method involves removing enough charged impurities from the colloid to prevent the charged particles from causing the colloid to become a viscous gel. The method however also involves not removing too many charged particles so the silica material doesn't gel by cross-linking with itself. This method is quite effective because it recognizes that materials that have accumulated during the formation of the colloid do perform an important function, but they can perform better at a lower concentration.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Inventors: Jane B. Wong Shing, Zhi Chen, Dennis MacDonald, Ronald S. Doles, Wen Bai
  • Patent number: 6082154
    Abstract: The present invention 10 discloses a device used as a security locking device for surfboards 12. The present invention discloses a U-shaped member 14 having parallel leg members which effectively encircle the surfboard 12 with the leg members being slightly wider than the thickness of a surfboard and slightly longer than the width of a surfboard which operates by sliding a surfboard 12 into and between the parallel legs of the U-shaped member 14 and thereafter, placing a locking member 30 that connects the two parallel legs of the device about the surfboard 12. There is also a cable member 24 which can be used to then attach the locking member 30 to any object or structure which will thereby prevent movement of the surfboard 12 beyond the length of the cable 24.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: July 4, 2000
    Inventor: Dennis MacDonald