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. 11, 1983
Filed:
Aug. 10, 1981
William Schelli, Elmhurst, IL (US);
William E Sindelar, Darien, IL (US);
Danly Machine Corporation, Chicago, IL (US);
Abstract
An automatic die changing system for a power press having carriers for transporting dies to and from a work station in the press and having a plurality of air lines and electrical lines in the press for supplying compressed air and electrical power to the dies on the carriers. All of the air and electrical lines terminate at the surface of the press, with a normally closed valve at the end of each of the air lines and electrical contact means at the end of each of the electrical lines. A plurality of connectors are mounted on each of the carriers to register with the valves and electrical contacts when the carrier is positioned at the work station, and responsive to the lowering of the carrier onto the press bed to automatically connect the air and electrical lines at the surface of the bed with corresponding air and electrical lines for operating control devices associated with the dies on the carrier. The connectors for the air lines also have actuators for automatically opening the valves of the air lines in response to the lowering of the carrier onto the press bed.