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.

Date of Patent:
Aug. 22, 2023

Filed:

Mar. 29, 2019
Applicant:

Koki Holdings Co., Ltd., Tokyo, JP;

Inventors:

Takashi Ueda, Ibaraki, JP;

Koji Shioya, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25C 1/04 (2006.01); B25C 1/00 (2006.01); B25C 1/06 (2006.01);
U.S. Cl.
CPC ...
B25C 1/047 (2013.01); B25C 1/008 (2013.01); B25C 1/06 (2013.01);
Abstract

This driving tool includes: a pressure accumulator () in which a compressible gas is accumulated; a striking part which operates in a first direction to strike a fastener with a pressure of the compressible gas; and a driving part which causes the striking part to operate in a second direction opposite to the first direction and to increase the pressure of the pressure accumulator (). The driving tool further includes: a cylinder chamber () in which the compressible gas to be supplied to the pressure accumulator () can be contained; a holder () forming the pressure accumulator () and the cylinder chamber (); a piston () which is disposed in the holder () and is operable to reduce the volume of the cylinder chamber (); and a switching valve () capable of connecting and disconnecting the cylinder chamber () and the pressure accumulator ().


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