Patents by Inventor Ralph Bagnall

Ralph Bagnall 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: 12076828
    Abstract: A push stop (100) for use in a slot disposed in a worksurface includes: a body (102), a resilient element (104), and an anchor assembly (106). The anchor assembly is configured to anchor a first portion (110) of the body in a fixed anchored position within the slot. A resilient force exerted by the resilient element urges a second portion (114) of the body into a fixed raised position in which the second portion protrudes beyond the worksurface. When an external force sufficient to overcome the resilient force is applied, the resilient element yields until none of the second portion protrudes beyond the worksurface.
    Type: Grant
    Filed: April 23, 2024
    Date of Patent: September 3, 2024
    Inventors: Henry Wang, Ralph Bagnall
  • Patent number: 12078197
    Abstract: An apparatus (100), including: a hub (102) having a hub center (160); a securing mechanism (106) configured to fix the hub onto a flat surface; and an eccentric clamp disk (104). When the hub is fixed to the flat surface and nested in the eccentric clamp disk, an interlocking slip fit relationship exists between the hub and the eccentric clamp disk. The interlocking slip fit relationship enables infinite rotation of the eccentric clamp disk about the hub center and has a geometric interlock (170). The geometric interlock is configured so that when the eccentric clamp disk is pushed laterally into contact with the hub, the geometric interlock urges the eccentric clamp disk downward onto the flat surface.
    Type: Grant
    Filed: January 18, 2024
    Date of Patent: September 3, 2024
    Inventors: Henry Wang, Ralph Bagnall
  • Patent number: 11491682
    Abstract: A bearingless groove router bit includes at least one cutting element affixed to a head of the router bit and has a first end spaced from an end of connected shank connected to the head and a second end adjacent to the second end of the head. The cutting element includes a cutting edge extending along the cutting element between the first end to the second end of the cutting element. The cutting edge may include a radial side edge that projects radially inwardly relative to a central axis of the router bit and a straight side edge that extends from an end of the radial side edge outwardly relative to the central axis to minimize tear out during cutting of a groove in a work piece.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: November 8, 2022
    Inventors: Henry Wang, Ralph Bagnall
  • Publication number: 20210178629
    Abstract: A bearingless groove router bit includes at least one cutting element affixed to a head of the router bit and has a first end spaced from an end of connected shank connected to the head and a second end adjacent to the second end of the head. The cutting element includes a cutting edge extending along the cutting element between the first end to the second end of the cutting element. The cutting edge may include a radial side edge that projects radially inwardly relative to a central axis of the router bit and a straight side edge that extends from an end of the radial side edge outwardly relative to the central axis to minimize tear out during cutting of a groove in a work piece.
    Type: Application
    Filed: February 24, 2021
    Publication date: June 17, 2021
    Inventors: Henry Wang, Ralph Bagnall
  • Patent number: 10940606
    Abstract: A bearingless groove router bit includes at least one cutting element affixed to a head of the router bit and has a first end spaced from an end of connected shank connected to the head and a second end adjacent to the second end of the head. The cutting element includes a cutting edge extending along the cutting element between the first end to the second end of the cutting element. The cutting edge may include a radial side edge that projects radially inwardly relative to a central axis of the router bit and a straight side edge that extends from an end of the radial side edge outwardly relative to the central axis to minimize tear out during cutting of a groove in a work piece.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: March 9, 2021
    Inventors: Henry Wang, Ralph Bagnall
  • Publication number: 20050115639
    Abstract: A multifunctional auxiliary base plate 11 for an electric woodworking router allowing the use of a wide range of accessories being attached to the base through a profiled slot 13 formed into base 11. A user of the auxilliary base-equipped router can utilize the tool as an offset base in a manner well known in the art, and then attach other accessories, without the use of tools, and without needing to remove the base plate from the router. Further, the bit opening in the base plate can be attached with a variety of throat plate inserts 25, 25A, or guide bushing adapter 25B.
    Type: Application
    Filed: October 12, 2004
    Publication date: June 2, 2005
    Inventor: Ralph Bagnall