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:
Feb. 05, 1991
Filed:
Jun. 22, 1989
Yuan-Ho Lee, Kuei-Jen Hsian, Tainan Hsieng, TW;
Other;
Abstract
An improved vibrator for architectural or civil engineering use is disclosed. The vibrator includes a vibrating means which is either a conventional reciprocating or rotating vibrator, and a suction means which is integrally formed with the vibrating means and has at least one suction member to be attached to the forming molds. The suction means of the improved vibrator enables an air tight connection between the vibrator and the forming molds. The suction means is substantially in the shape of a disc with an air passage formed therein to be operated via an air pump to produce a low pressure area in the disc body. The suction member comprises at least one flexible gasket at the periphery of the disc body which is attached to the forming mold to form an ideal attachment.