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:
Sep. 17, 1996
Filed:
Oct. 25, 1994
Toshiba Kikai Kabushiki Kaisha, Tokyo-To, JP;
Abstract
A stroke S of a squeeze pin under no load condition of a squeeze pin cylinder for driving the squeeze pin is detected. A value (S-.alpha.) obtained by subtracting a small value .alpha. from the detected stroke S of the squeeze pin is determined as a set stroke of the squeeze pin. After a predetermined waiting time has elapsed from when melted metal is charged into a cavity completely, the squeeze pin is advanced. Here, the actual stroke Sf of the squeeze pin is detected, and the detected stroke Sf is compared with set stroke (S-.alpha..+-..beta.), where .beta. is an allowable deflection. As the result of comparison, if Sf oversteps the set limits (S-.alpha..+-..beta.), at least one of parameters (the pressure and the flow rate of hydraulic fluid supplied to the squeeze pin cylinder and the waiting time) is corrected, so that the detected stroke value Sf approaches the set stroke (S-.alpha.) for the succeeding casting cycle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile