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:
Apr. 24, 2001
Filed:
Apr. 28, 1998
Hiroichi Sakamoto, Kagamihara, JP;
Murata Kikai Kabushiki Kaisha, Kyoto, JP;
Abstract
A punch press, adapted to receive a punch tool having a passage for discharging a fluid for ejecting slugs punched out during the punching process, includes a movable ram means for striking the punch, the ram means having a bottom dead position and including a passage connectable to the passage of the punch when the ram means strikes the punch. The press further includes a valve for controlling the supply of the slug-ejecting fluid to the ram means, the valve comprising a movable member responsive to the vertical motion of the ram means and a stationary member relative to which the movable member slides, the valve being adapted to control the flow of the fluid to the ram means, the valve being open while the ram means is positioned within a predetermined positional range including but not limited to, the dead bottom position of the ram means.