Patents by Inventor Bruce A. Grifhorst

Bruce A. Grifhorst 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).

  • HEATED WHEELCHAIR RAMP SYSTEM
    Publication number: 20230193633
    Abstract: A wheelchair ramp system includes a ramp having a floor having a plurality of layers. At least one guardrail is secured to the side of the ramp for providing a safety barrier to persons using the ramp system. The plurality of layers include a base, a foil isolator; a heating element, a heating element cover and a flooring cover. The ramp system is divided into a plurality of electrical zones such that not all zones are powered at the same time.
    Type: Application
    Filed: February 16, 2023
    Publication date: June 22, 2023
    Inventor: Bruce A. Grifhorst
  • Wheelchair ramp system using structrually insulated panel (SIPs)
    Patent number: 11585097
    Abstract: A wheelchair ramp system includes a ramp constructed from at least one structural insulated panel (SIP) having a foam core sandwiched between two structural facing panels such as oriented strand board (OSB). An outdoor exterior coating such as polyaspartic coating covers the SIP panel for allowing the SIP panel to be resistant to outdoor elements. At least one guardrail or handrail is secured to the side of the SIP for providing a safety barrier to persons using the ramp system.
    Type: Grant
    Filed: October 13, 2020
    Date of Patent: February 21, 2023
    Assignee: Heated Ramps, LLC
    Inventors: Bruce A. Grifhorst, Eric S. Smith
  • WHEELCHAIR RAMP SYSTEM USING STRUCTRUALLY INSULATED PANEL (SIPS)
    Publication number: 20210025172
    Abstract: A wheelchair ramp system includes a ramp constructed from at least one structural insulated panel (SIP) having a foam core sandwiched between two structural facing panels such as oriented strand board (OSB). An outdoor exterior coating such as polyaspartic coating covers the SIP panel for allowing the SIP panel to be resistant to outdoor elements. At least one guardrail or handrail is secured to the side of the SIP for providing a safety barrier to persons using the ramp system.
    Type: Application
    Filed: October 13, 2020
    Publication date: January 28, 2021
    Inventors: Bruce A. Grifhorst, Eric S. Smith
  • Heated wheelchair ramp system
    Patent number: 10801211
    Abstract: A heated wheelchair ramp system includes a ramp constructed from at least one structural insulated panel (SIP) having a foam core sandwiched between two oriented strand board (OSB) panels. A polyaspartic coating covers the SIP panel for allowing the SIP panel to be resistant to outdoor elements. One or more heating elements are configured within channels in the SIP to provide heated to the SIP. A metallic sheet is configured adjacent to the heating element(s) to provide heat distribution to the OSB panel(s). Finally, at least one guardrail or handrail is secured to the side of the SIP for providing a safety barrier to persons using the ramp system.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: October 13, 2020
    Assignee: Heated Ramps, LLC
    Inventors: Bruce A. Grifhorst, Eric S. Smith
  • HEATED WHEELCHAIR RAMP SYSTEM
    Publication number: 20200217076
    Abstract: A heated wheelchair ramp system includes a ramp constructed from at least one structural insulated panel (SIP) having a foam core sandwiched between two oriented strand board (OSB) panels. A polyaspartic coating covers the SIP panel for allowing the SIP panel to be resistant to outdoor elements. One or more heating elements are configured within channels in the SIP to provide heated to the SIP. A metallic sheet is configured adjacent to the heating element(s) to provide heat distribution to the OSB panel(s). Finally, at least one guardrail or handrail is secured to the side of the SIP for providing a safety barrier to persons using the ramp system.
    Type: Application
    Filed: January 9, 2020
    Publication date: July 9, 2020
    Inventors: Bruce A. Grifhorst, Eric S. Smith
  • Assist apparatus and system
    Patent number: 10588813
    Abstract: A system for assisting a person to rise from or recline to a sitting position is disclosed employing a walker or cane having a connector that enables attachment and detachment with an anchor attached to the floor.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: March 17, 2020
    Inventor: Bruce A. Grifhorst
  • ASSIST APPARATUS AND SYSTEM
    Publication number: 20180289580
    Abstract: A system for assisting a person to rise from or recline to a sitting position is disclosed employing a walker or cane having a connector that enables attachment and detachment with an anchor attached to the floor.
    Type: Application
    Filed: May 31, 2016
    Publication date: October 11, 2018
    Inventor: Bruce A. Grifhorst