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:
Oct. 14, 1986
Filed:
Apr. 12, 1984
Naotake Oneyama, Kashiwa, JP;
Akihisa Yoshikawa, Mastudo, JP;
Shokestu Kinzoku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A cylinder driving apparatus, wherein a head chamber and a rod chamber of a cylinder for driving a load upwardly and downwardly are communicated with a pressure accumulation tank by way of a balance pipeway equipped with an electromagnetic proportional flow control valve and a recycling pipeway equipped with a pressure control valve mechanism, respectively, and the load is driven by feeding air at reduced pressure to the rod chamber or discharging it to the external atmosphere by way of the pressure control valve mechanism while applying air pressure into the head chamber of the cylinder against the load by way of the electromagnetic proportional flow control valve for adjusting the driving speed.