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. 21, 1980
Filed:
Jun. 05, 1978
Leo R Gale, Morton Grove, IL (US);
Robert R Heilman, Elburn, IL (US);
The Lockformer Company, Lisle, IL (US);
Abstract
An apparatus for producing shaped metal objects such as collars for ventillating systems. The apparatus includes drive means for advancing a flat metal sheet past a rotary tool whereby notches are formed along one side of the sheet. The tool is provided with a stabilizing fitting and spring means to insure consistent notch forming. The notched sheet may be collected and formed into a rectangular configuration by other equipment or a removably attached sheet crimping and deflecting mechansim may be mounted in the path of movement of the notched sheet. This mechanism includes crimping rolls, and the deflecting means positioned beyond the crimping rolls operate to turn the sheet into a circular configuration whereby the product of the apparatus is automatically formed into a circular collar.