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:
Mar. 29, 1994
Filed:
Jul. 07, 1992
Hans-Wilhelm Hoffmann, Widen, CH;
Niklaus Portmann, Bellikon, CH;
Elpatronic AG, Zug, CH;
Abstract
The driver (12) comprises a carrier (14) for attachment to a conveyor, for example an endless chain. A pusher (16) made of hard-wearing material is attached to the carrier (14) in such a way that when the support moves forwards the pusher engages a rear edge of a sheet (10) to be fed. The pusher (16) is supported through at least one elastic spacer (18) on the carrier (14), in a rearwardly resilient manner. In a preferred embodiment of the driver (12), the pusher (16) comprises a flexible metal sleeve (30) which near each of its two ends rests, by way of a respective spacer (18) in the form of an electrically insulating washer, on a shaft (20) attached to the carrier (16). This makes high rates of acceleration possible when feeding thin metal sheets on a can welding machine, without the sheets being damaged by the driver (12).