Patents by Inventor David Alan Smart

David Alan Smart 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).

  • Bayonet force booster for add-on lens
    Patent number: 10809598
    Abstract: An add-on lens assembly supporting an add-on lens for a camera includes a locking mechanism actuatable by the user in order to increase the attachment force between the lens and the camera. The add-on lens assembly may include a rotatable lock ring having a cam pin that navigates along a surface of a cam such that when the lock ring is rotated, the cam pin causes the cam to translate axially. Axial translation of the cam may compress a spring within the assembly and increase the attachment force between the lens assembly and the camera. The increased force between the add-on lens assembly and the camera may provide additional support for large or heavy assemblies.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: October 20, 2020
    Assignee: Fluke Corporation
    Inventors: William Weidner, Peter Alan Driscoll, David Alan Smart
  • BAYONET FORCE BOOSTER FOR ADD-ON LENS
    Publication number: 20180292732
    Abstract: An add-on lens assembly supporting an add-on lens for a camera includes a locking mechanism actuatable by the user in order to increase the attachment force between the lens and the camera. The add-on lens assembly may include a rotatable lock ring having a cam pin that navigates along a surface of a cam such that when the lock ring is rotated, the cam pin causes the cam to translate axially. Axial translation of the cam may compress a spring within the assembly and increase the attachment force between the lens assembly and the camera. The increased force between the add-on lens assembly and the camera may provide additional support for large or heavy assemblies.
    Type: Application
    Filed: June 14, 2018
    Publication date: October 11, 2018
    Inventors: William Weidner, Peter Alan Driscoll, David Alan Smart
  • Bayonet force booster for add-on lens
    Patent number: 10025164
    Abstract: An add-on lens assembly supporting an add-on lens for a camera includes a locking mechanism actuatable by the user in order to increase the attachment force between the lens and the camera. The add-on lens assembly may include a rotatable lock ring having a cam pin that navigates along a surface of a cam such that when the lock ring is rotated, the cam pin causes the cam to translate axially. Axial translation of the cam may compress a spring within the assembly and increase the attachment force between the lens assembly and the camera. The increased force between the add-on lens assembly and the camera may provide additional support for large or heavy assemblies.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: July 17, 2018
    Assignee: Fluke Corporation
    Inventors: William Weidner, Peter Alan Driscoll, David Alan Smart
  • BAYONET FORCE BOOSTER FOR ADD-ON LENS
    Publication number: 20160306262
    Abstract: An add-on lens assembly supporting an add-on lens for a camera includes a locking mechanism actuatable by the user in order to increase the attachment force between the lens and the camera. The add-on lens assembly may include a rotatable lock ring having a cam pin that navigates along a surface of a cam such that when the lock ring is rotated, the cam pin causes the cam to translate axially. Axial translation of the cam may compress a spring within the assembly and increase the attachment force between the lens assembly and the camera. The increased force between the add-on lens assembly and the camera may provide additional support for large or heavy assemblies.
    Type: Application
    Filed: April 15, 2015
    Publication date: October 20, 2016
    Inventors: William Weidner, Peter Alan Driscoll, David Alan Smart