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:
May. 19, 2020
Filed:
Sep. 15, 2016
Techtronic Power Tools Technology Limited, Tortola, VG;
John Schnell, Anderson, SC (US);
Edward A. Pomeroy, Piedmont, SC (US);
Essam Namouz, Greenville, SC (US);
Henry Johnson, Seneca, SC (US);
Jie Liu, Dongguan, CN;
Hailing Lin, Dongguan, CN;
Jinlin Zhou, Dongguan, CN;
Xinghong Li, Dongguan, CN;
Ziqiang Cao, Dongguan, CN;
Liguo Ma, Dongguan, CN;
TECHTRONIC POWER TOOLS TECHNOLOGY LIMITED, Tortola, VG;
Abstract
A powered fastener driver includes a cylinder and a drive piston within the cylinder being acted on by a driving force resulting from a pressure differential. The powered fastener further includes a drive blade coupled to the drive piston and operable to drive a fastener, and an adjustable valve for selectively introducing air from ambient atmosphere into the cylinder, thereby changing the pressure differential acting on the drive piston. By adopting a self-contained vacuum generating means as described above, the present invention does not rely on any external vacuum source and powered fastener driver can be used and carried with conveniently.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile