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:
Apr. 27, 1993
Filed:
May. 14, 1991
David Shill, Spokane, WA (US);
Curtis A Roth, Post Falls, ID (US);
Thermoguard Equipment, Inc., Spokane, WA (US);
Abstract
A stacked sheet handling machine 11 includes a top sheet hold down apparatus 10 that prevents trailing sheets from following individual blocks of sheets separated from an upright stack supported on an elevator conveyor 15. A pusher plate 20 is moved laterally of a sheet stack 14 to engage a side 22 of the stack and push a sheet block 21 laterally from the stack and onto the discharge conveyor 17. A top sheet hold down is provided along the sheet block separator to securely hold the top sheet through provision of a hold down traction arrangement 38. Two forms of the hold down traction arrangement are disclosed, both being operated to move a friction surface against the top surface of the sheet 19 to hold the sheet stationary as the block is moved towards the discharge conveyor 17.