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. 21, 1989
Filed:
Aug. 06, 1987
Merrill D Martin, Oakland, CA (US);
Other;
Abstract
A machine for handling flat sheets employs a pair of conveyors in series to receive the sheets from a processing machine and to deliver them to a downwardly moving platform to form a stack thereon and to deliver the stack so formed. Both conveyors operate at a predetermined initial speed to deliver to the platform until a predetermined number of sheets is received from the processing machine. At that point both conveyors are speeded up for a short interval to clear the first conveyor and then the first conveyors is tilted upwards and slowed down which stops the flow to the second conveyor and accumulates the sheets on the first conveyor. The second conveyor continues at a high speed to complete the stack on the platform. The sheets are then discharged from the platform. The first conveyor is returned to its original angle of tilt and both conveyors are returned to their original speeds and the platform returns to its original height to start forming a new stack.