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:
Aug. 25, 2009
Filed:
Jul. 02, 2007
Hideyuki Tanimoto, Ibaraki, JP;
Toshihito Sakaba, Ibaraki, JP;
Hiroyuki Oda, Ibaraki, JP;
Takashi Ueda, Ibaraki, JP;
Yoshihiro Nakano, Ibaraki, JP;
Hideyuki Tanimoto, Ibaraki, JP;
Toshihito Sakaba, Ibaraki, JP;
Hiroyuki Oda, Ibaraki, JP;
Takashi Ueda, Ibaraki, JP;
Yoshihiro Nakano, Ibaraki, JP;
Hitachi koki Co., Ltd., Tokyo, JP;
Abstract
A drive machine which includes a housing, a motor disposed in the housing, a magazine which is attached to the housing and supplies a nail to a drive position, a plunger for driving the nail, a spring which impels and accelerates the plunger to the drive position by elastic force and a chain or belt which is driven by the motor to thus accumulate elastic energy in the spring. The chain has a projection which provides a first state where elastic energy is accumulated in the spring and a second state where the accumulated elastic energy is released.