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. 01, 1994
Filed:
Oct. 08, 1992
Reiji Arikita, Wakayama, JP;
Shima Seiki Mfg., Ltd., Wakayama, JP;
Abstract
The present invention relates to an automatic sheet cutting apparatus which cuts off a sheet like a knit or a woven fabric into a predetermined shape and more particularly to a vacuum air leakage preventive device combined with an automatic sheet cutting apparatus so that a vacuum air can be prevented from leaking through a clearance between a bottom surface of one of those brush-mounting bases aligned in parallel with a pair of endless chains and a top surface of the main body of the automatic sheet cutting apparatus. The vacuum leakage preventive device includes a shielding member on a movable arm which is movable into place relative to the main body and the brush-mounting bases to prevent a break in a vacuum which pulls the material to be cut onto the main body relative to a cutter.