Paper handling system having embedded control structures

• US 5,839,722 A
• Filed: 11/26/1996
• Issued: 11/24/1998
• Est. Priority Date: 11/26/1996
• Status: Expired due to Term

• Current Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Original Assignee: Xerox Corporation (Xerox Holdings Corp.)
• Inventors: Berlin, Andrew A., Biegelsen, David K., Cheung, Patrick C. P., Yim, Mark H., Jackson, Warren B.
• Primary Examiner(s): SKAGGS JR, H GRANT
• Application Number:
  US08/756,153
• Time in Patent Office: 728 Days
• Field of Search: 271/194, 271/195, 271/265.02, 271/265.03, 271/264, 406/86, 406/87, 406/88, 406/10, 406/19, 414/676
• US Class Current: 269/57
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing
• CPC Class Codes: B65H 2555/00 Actuating means
• CPC Class Codes: B65H 5/228 by air-blast devices
• CPC Class Codes: B65H 9/002 changing orientation of sheet by only controlling movement of the forwarding means, i.e. without the use of stop or register wall

Abstract

A paper handling system for air mediated transport of sheets or pages of paper is disclosed. Microelectromechanical valves and sensors are embedded in a dielectric substrate for tracking and controlling paper transport. These microelectromechanical systems can be batch fabricated using resin impregnated dielectric laminates having photolithographically formed circuitry for electrical connections. Use of high speed sensor and valve control systems permit dynamic adjustments to paper trajectory during paper transport.

Claims

1. A fluid flow transport system for moving a flexible object, the system comprising

a fluid pressure source

a conveyor having at least one laminate composed of a dielectric base material impregnated with a resin, the conveyor being positioned in fluid contact with the fluid pressure source,

an array of microactuators at least partially embedded in the laminate of the conveyor, with each microactuator having a component movable with respect to the dielectric base material to control fluid flow from the fluid pressure source, and

a plurality of metallic electrical connections photolithographically formed on the laminate and electrically connected to the microactuators.

2. The transport system of claim 1, wherein each microactuator is incorporated in each of a plurality of independently operated air jets for selectively directing air flows to impart momentum to the flexible object.

3. The transport system of claim 1, further comprising a plurality of laminates bonded together to form multiple layers, and wherein at least some of the microactuators in the array of microactuators are embedded within those multiple layers.

4. A transport system for moving a flexible object, the system comprising

a fluid pressure source,

a conveyor having at least one laminate substantially composed of a dielectric base material impregnated with resin, the conveyor being positioned in fluid contact with the fluid pressure source,

an array of sensors at least partially embedded in the laminate to track position of the flexible object, and

a plurality of metallic electrical connections photolithographically formed on the laminate and electrically connected to microactuators electrically connected to the array of sensors and positioned in contact with the conveyor to control fluid flow from the fluid pressure source.