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. 17, 1995
Filed:
Oct. 14, 1994
Masato Aoki, Ibaraki, JP;
Shigeharu Okumura, Higashiosaka, JP;
Motomitsu Suzuki, Mino, JP;
Kyoji Chikira, Takatsuki, JP;
Toshiyuki Okada, Kobe, JP;
Katsuya Sasaki, Hirakata, JP;
Yoichiro Nakamura, Suita, JP;
Hideki Saito, Kawachinagano, JP;
Hitachi Zosen Corporation, Osaka, JP;
Abstract
A vibrating apparatus for vibrating a mold 1 by an electrohydraulic stepping cylinder 5 through a link mechanism 3 is characterized in that when a driving signal delivered into a drive unit 26 for the stepping cylinder 5, the actual acceleration of the mold 1 is fed back to a target waveform signal for the mold 1 and compensating signals for cancelling the operation delay of the stepping cylinder 5 and the signal transfer lag due to elastic deformation of the link mechanism and the like are added thereto to make feed-forward compensation.