Patents by Inventor Mitchell Ellena

Mitchell Ellena 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).

  • Publication number: 20260027684
    Abstract: A gas spring-powered fastener driver includes a cylinder, a moveable piston positioned within the cylinder, and a driver blade attached to the piston and movable therewith between a top-dead-center (TDC) position and a driven or bottom-dead-center (BDC) position. The driver blade defines a driving axis. The driver blade includes a body having a first side and an opposite, second side with the driving axis passing therebetween. A plurality of teeth extends from the first side of the body. A plurality of projections extends from the second side of the body. The body, the teeth, and the projections are bisected by a common plane. A lifter is operable to move the driver blade from the BDC position toward the TDC position, and is engageable with the teeth. A latch assembly is movable between a latched state, and a released state. The latch assembly is configured to engage with the projections.
    Type: Application
    Filed: September 29, 2025
    Publication date: January 29, 2026
    Inventors: David Bierdeman, Andrew R. Wyler, Nicholas A. Albers, Mitchell Ellena
  • Patent number: 12427634
    Abstract: A gas spring-powered fastener driver includes a cylinder, a moveable piston positioned within the cylinder, and a driver blade attached to the piston and movable therewith between a top-dead-center (TDC) position and a driven or bottom-dead-center (BDC) position. The driver blade defines a driving axis. The driver blade includes a body having a first side and an opposite, second side with the driving axis passing therebetween. A plurality of teeth extends from the first side of the body. A plurality of projections extends from the second side of the body. The body, the teeth, and the projections are bisected by a common plane. A lifter is operable to move the driver blade from the BDC position toward the TDC position, and is engageable with the teeth. A latch assembly is movable between a latched state, and a released state. The latch assembly is configured to engage with the projections.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: September 30, 2025
    Assignee: MILWAUKEE ELECTRIC TOOL CORPORATION
    Inventors: David Bierdeman, Andrew R. Wyler, Nicholas A. Albers, Mitchell Ellena
  • Publication number: 20200114500
    Abstract: A gas spring-powered fastener driver includes a cylinder, a moveable piston positioned within the cylinder, and a driver blade attached to the piston and movable therewith between a top-dead-center (TDC) position and a driven or bottom-dead-center (BDC) position. The driver blade defines a driving axis. The driver blade includes a body having a first side and an opposite, second side with the driving axis passing therebetween. A plurality of teeth extends from the first side of the body. A plurality of projections extends from the second side of the body. The body, the teeth, and the projections are bisected by a common plane. A lifter is operable to move the driver blade from the BDC position toward the TDC position, and is engageable with the teeth. A latch assembly is movable between a latched state, and a released state. The latch assembly is configured to engage with the projections.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 16, 2020
    Inventors: David Bierdeman, Andrew R. Wyler, Nicholas A. Albers, Mitchell Ellena