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:
Nov. 14, 1989
Filed:
Jun. 14, 1988
Applicant:
Inventors:
Hiroyuki Tsuboi, Zama, JP;
Hiroshi Sugiyama, Zama, JP;
Assignee:
Toshiba Kikai Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D / ; G01P / ; G06F / ;
U.S. Cl.
CPC ...
364565 ; 36457101 ; 364476 ; 164457 ; 164155 ; 164157 ; 73-3 ; 264 401 ; 425135 ; 425145 ; 425149 ;
Abstract
In apparatus for measuring injection speed of a die cast machine, there are provided a pulse generator responsive to a movement of an injection plunger for producing a pulse signal, a detector for detecting a width of the pulse signal to produce pulse width data, a memory device successively storing the pulse width data between commencement and termination of injection, and an arithmetic operation circuit for calculating an average speed in a predetermined high speed section of a stroke of the injection plunger based on pulse width data stored in the memory device.