The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2026
Filed:
Sep. 07, 2022
Illinois Tool Works Inc., Glenview, IL (US);
Olivier Baudrand, Paris, FR;
Pascale Grandjean, Guilherand-Granges, FR;
Frederic Nayrac, Bourg-lès-Valence, FR;
Christian Ricordi, Bourg-lès-Valence, FR;
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A portable electric device comprising a cylinder in which at least one movable piston slides between a start position corresponding to the top of the cylinder and an end position corresponding to the bottom of the cylinder, said piston comprising a mechanism configured to come into contact with an element to be operated once the piston is in the end position or is between the start position and the end position. More particularly, the portable electric device comprises: a power supply mechanism intended to supply power to a first fixed coil, the first fixed coil being positioned facing an expulsion mechanism for expelling the piston when the piston is in the start position, the expulsion mechanism being secured to a first face of the movable piston; and at least one braking mechanism for braking the piston that are configured to brake the piston when the piston is in the end position or approaching the end position. The movable piston being composed of: a first part made from a first material having an electromagnetic capability suitable for reducing magnetic losses and limiting the induction saturation; and a second part made from a second material suitable for withstanding shocks while or after the piston makes contact with the braking mechanism; the first part being separated from said braking mechanism by the second part.