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:
Jul. 15, 1986
Filed:
Jul. 23, 1985
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An apparatus, for controlling dynamic characteristics of a press load, facilitates changing the balance between a hydraulic pressure and a pneumatic pressure in a hydroblank holder, wherein a first pneumatic device which supplies a standard pneumatic pressure with which a predetermined dynamic load can be obtained and a second pneumatic device which supplies a pneumatic pressure higher or lower than the standard pneumatic pressure are provided in parallel in a pneumatic device which supplies pneumatic pressure to the hydroblank holder and the first and second pneumatic devices are switched in accordance with a press stroke and, when the switching is made to low pressure, an accumulator is depressurized by the operation of a depressurizing device.