Sheet feeding or delivering – Feeding – Separators
Reexamination Certificate
1999-05-10
2001-01-16
Ellis, Christopher P. (Department: 3651)
Sheet feeding or delivering
Feeding
Separators
C271S110000, C271S149000, C271S152000
Reexamination Certificate
active
06173950
ABSTRACT:
BACKGROUND
The present invention relates to feeding mechanisms and more particularly to feeding mechanisms for feeding sheets of paper from a source to a receiving area at a remote location.
In present high speed mechanisms for printing and handling sheets of paper, the sheets are fed one-by-one at very high speeds from a stack or some other source to a remote area at a remote location, such as an accumulating area. It is also important that the sheets be fed in shingle fashion in order to obtain the maximum feeding speeds required by present high speed printing, feeding, folding and mailing systems.
OBJECTS
One object of the present invention is the provision of an improved sheet feeding mechanism which can feed and deliver single sheets quickly into a remote receiving area from a source in order to permit multiple sheet stacking and/or delivery of such sheets at very high speeds.
Another object of the present invention is the provision of an improved sheetfeeding mechanism in which the source or a similar mechanism can feed and delivery sheets from a vertical stack or horizontal stack.
Another object of the present invention is the provision of an improved sheet feeding mechanism in which the same or similar mechanism can be used to deliver sheets to different types of destinations.
Another object of the present invention is the provision of an improved sheet feeding mechanism in which the same or similar feed mechanism may be used to feed from different sources.
Another object of the present invention is the provision of an improved sheet feeding mechanism which is simple and inexpensive to operate and maintain.
Other and further objects will be obvious upon the understanding of the illustrative embodiment about to be described, or which will be indicated in the appended claims, and various advantages not referred to herein will occur to one skilled in the art upon employment of the invention in practice.
In order to accomplish these objects, the present invention provides an improved system of belts and rollers which control and feed the sheets accurately from a source to a remote receiving area. In general, a stack is moved against a feed assembly which separates the individual sheets from the stack and transfers the sheets to a remote destination. As each sheet is separated and removed from the stack, a spring-pressed mechanism maintains the feed assembly in constant contact with the subsequent sheets in the stack so that the sheets are removed from the stack and fed to the remote destination in shingle fashion. When a predetermined number of sheets are removed from the stack, the spring-pressed mechanism comes in contact with a demand switch which commands that additional sheets be delivered to the stack.
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Bower Kenneth W
Ellis Christopher P.
GBR Systems Corporation
Previto Joseph J.
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