US 12,409,518 B2
Fastener removal tool
Chandler Berney, Oklahoma City, OK (US)
Assigned to United States of America as represented by the Secretary of the Air Force, Wright-Patterson AFB, OH (US)
Filed by Government of the United States, as represented by the Secretary of the Air Force, Wright-Patterson AFB, OH (US)
Filed on Oct. 3, 2022, as Appl. No. 17/958,502.
Claims priority of provisional application 63/334,954, filed on Apr. 26, 2022.
Prior Publication US 2023/0339054 A1, Oct. 26, 2023
Int. Cl. B23P 19/00 (2006.01); B23P 19/06 (2006.01); B25B 27/02 (2006.01)
CPC B23P 19/06 (2013.01) [B25B 27/026 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A fastener removal tool for removing a fastener having a head that is partially protruding from the surface of an article, said fastener removal tool comprising:
a fastener puller for engaging the head of a fastener, the head of the fastener having a top surface and an underside;
a stand-off mount for placing against a surface having a fastener therein, said stand-off mount having two ends comprising a surface-contacting end and an opposing end, and a passageway between said ends;
a first rod joined to said fastener puller and passing at least part of the way through the passageway in the stand-off mount;
a power source having a piston rod joined to said first rod, wherein the power source controls the motion of said first rod; and
a selector in communication with the power source for selecting the type of movement of the first rod between two modes of applying a force to remove a fastener: (a) exerting a continuous pulling force with said fastener puller, or (b) exerting a pulling force in the form of repeating intermittent strikes on the underside of the head of a fastener with said fastener puller.