Browse Prior Art Database

LIQUID CRYSTAL TEMPERATURE SENSOR

IP.com Disclosure Number: IPCOM000024843D
Original Publication Date: 1982-Jun-30
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 41K

Publishing Venue

Xerox Disclosure Journal

Abstract

This disclosure relates to a liquid crystal temperature sensor for use in checking the temperature of a heated roll fuser forming a part of the xerographic process. Organic liquid crystal material is'encapsulated in the form of several liquid dots on a small strip of material. The liquid dots are sensitive to various temperatures or temperature ranges around the set point of the fuser roll.

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(EROX DISCLOSURE JOURNAL

LIQUID CRYSTAL TEMPERATURE SENSOR Proposed Jonathan J. Burnard Classification

US. CI. 355/3 FU
Int. C1. G03g 15/00

This disclosure relates to a liquid crystal temperature sensor for use in checking the temperature of a heated roll fuser forming a part of the xerographic process. Organic liquid crystal material is'encapsulated in the form of several liquid dots on a small strip of material. The liquid dots are sensitive to various temperatures or temperature ranges around the set point of the fuser roll.

The life of the crystals, which is usually limited (i.e., to about 345'F) at elevated temperatures can be extended by hermetically sealing the assembly while in a vacuum or an inert atmosphere. With the extended life, this sensor would be less expensive and more sensitive than the temperature tapes currently employed.

Volume 7 Number 3 May/June 1982 159

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160 XEROX DISCLOSURE JOURNAL

Volume 7 Number 3 May/June 1982

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