Browse Prior Art Database

BUTTERFLY VALVE CONTROL SYSTEM

IP.com Disclosure Number: IPCOM000025163D
Original Publication Date: 1983-Dec-31
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 42K

Publishing Venue

Xerox Disclosure Journal

Abstract

A low power consumption butterfly valve control system to be located in the ducting between a vacuum box and a blower in an air system of a sheet feeding apparatus in order to reduce the average power drawn by solenoids is disclosed. The butterfly valve control system includes an over center torsion spring and two small tubular solenoids adapted to actuate the butterfly valve by each being pulsed only long enough to initiate movement to the butterfly valve to overcome the over center force exerted by the torsion spring. This control system reduces power requirements for the solenoids from 11.5 watts of a conventional system to 0.4 watts.

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CEROX DISCLOSURE JOURNAL

BUTTERFLY VALVE CONTROL SYSTEM Proposed Frank R. Hvnes Classification

U.S. C1. 251/138 Int. C1. F16k 31/02

A low power consumption butterfly valve control system to be located in the ducting between a vacuum box and a blower in an air system of a sheet feeding apparatus in order to reduce the average power drawn by solenoids is disclosed. The butterfly valve control system includes an over center torsion spring and two small tubular solenoids adapted to actuate the butterfly valve by each being pulsed only long enough to initiate movement to the butterfly valve to overcome the over center force exerted by the torsion spring. This control system reduces power requirements for the solenoids from 11.5 watts of a conventional system to 0.4 watts.

Volume 8 Number 6 November/December 1983 47 1

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XEROX 472 DISCLOSURE JOURNAL

Volume 8 Number 6 November/December 1983

[This page contains 1 picture or other non-text object]