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:
May. 21, 1996
Filed:
Oct. 04, 1994
Applicant:
Inventors:
Nobuyuki Nakamura, Nagano, JP;
Masashi Suganuma, Nagano, JP;
Assignee:
Nissei Plastic Industrial Co., Ltd., Nagano, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
425145 ; 264 407 ; 425149 ;
Abstract
The speed control unit for open loop control of the speed of an actuator 2 of an injection cylinder according to setpoint Vs of speed. The speed control unit includes a measurement sensing unit 3 to detect speed measurement Vd and pressure measurement Pd from the run of the actuator 2. An arithmetic processing unit 4 calculates a correction value Av for command value Vc of speed according to a speed measurement Vd, a pressure measurement Pb, a setpoint Vs of speed and/or a setpoint Ps of pressure, in cases where the speed measurement Vd is found deviated from the setpoint Vs of speed.