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. 24, 1981
Filed:
Apr. 04, 1979
Emmanuel Mechalas, Danville, IL (US);
Other;
Abstract
A novel bag opening apparatus comprises an enclosure or chute or slide for receiving a bag and having bag-opening stationary knives positioned therein. The bag-opening knives comprise a plurality of knives meeting at a sharp point and extending diagonally outward to engage and be supported on the side walls of the enclosure or chute or slide. The arrangement of the knives is such that the point where the knives join is operable to puncture the end of a bag pressed there against and the knives extending diagonally outward toward the walls of the enclosure or chute or slide will make diagonal cuts in the end of a bag pressed there against which extend substantially across the end of the bag and produce an enlarged opening therein. This bag opening apparatus is designed for opening bags containing particulate material and more particularly pulverulant material. The apparatus is particularly useful in combination with dust collecting means and with auger or circulating air-type conveyor systems.