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DELAY ACTION REED VALVE

IP.com Disclosure Number: IPCOM000025122D
Original Publication Date: 1983-Oct-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 50K

Publishing Venue

Xerox Disclosure Journal

Abstract

A bimetal delay action pressure relief valve for a vacuum corrugated feeder is shown in the figure that is attached to the plenum of an air nozzle. Its ourpose is to allow air flow during the acquire phase of a feed cycle and provide high nozzle pressures during the feeding portion of a feed cycle. Without the valve, these two needs oppose each other.

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XEROX DISCLOSURE JOURNAL

DELAY ACTION REED VALVE Proposed Classification David Eisler US. C1. 137/803

Int. C1. F15c 1/00

LOW PRESSURE

HIGH PRESSURE

SIDE

A bimetal delay action pressure relief valve for a vacuum corrugated feeder is shown in the figure that is attached to the plenum of an air nozzle. Its ourpose is to allow air flow during the acquire phase of a feed cycle and provide high nozzle pressures during the feeding portion of a feed cycle. Without the valve, these two needs oppose each other.

The bimetal delay action valve 50 of the figure is electrically connected to a vacuum solenoid in the feeder system through wires 55 and 56. When the solenoid is actuated (at the start of the acquire phase) the bimetal reed 60 begins heating. Before heating, the relief valve is open in the direction of the arrow on the low pressure side of the valve. The open valve allows large vacuum side air flow and minimal nozzle flow which improves paper acquisition. As the bimetal heats (during which paper is acquired by the feeder), the valve closes. By the time the paper is acquired, the relief valve will close giving maximum nozzle pressure for improved feeding.

Volume 8 Number 5 September/October 1983 383

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384

    XEROX DISCLOSURE JOURNAL Volume 8 Number 5 September/October 1983

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