S. C. Johnson Son, Inc.

Biosafe Laboratories, Inc.

Shannon Julia Ebner

Ralph G Schwarz

Steven P Tyrrell

Michael J Rohrer

A method of manufacturing a gel candle having a non-metal core wick that stands upright and is not bent, wilted, or submerged in the gel candle body. In one aspect, the method includes providing a gel-forming liquid composition in a candle container having a longitudinal axis running therethrough, the gel-forming liquid composition having an average temperature of between about 195&deg; F. and about 230&deg; F.; thereafter, inserting a wick-clip having a non-metal core wick into the composition in the container when the temperature of the composition substantially in the center of the container is between about 160&deg; F. and about 195&deg; F.; and drawing the wick-clip through the composition and positioning the wick-clip in the container using a magnetic material. After the positioning step, the non-metal core wick is substantially aligned with the longitudinal axis of the container. In another aspect, the method can further include cooling the composition in the container. In yet another aspect, the wick-clip having a non-metal core wick is inserted into and drawn through the composition in the container before the composition in the container begins to transform into a gel. In still another aspect, the method may additionally comprise placing a guide on the container to help guide the non-metal core wick through the gel-forming liquid composition when the wick is inserted during the inserting step.

Method of manufacturing gel candles having non-metal core wicks

A method and apparatus for making an optical measurement through a tissue such as skin of a person includes an implantable optical system having an entry window, an exit window, a reference path between the windows and a measurement path between the windows. The reference path includes a reference element with known optical characteristics, and the measurement path is in fluid communication with the body fluids of the person. A first optical signal is directed through the tissue of the person, the entry window, the reference path, the exit window and the tissue of the person to an external optical sensor, and a second optical signal is directed through the same portion of the tissue of the person, the entry window, the measurement path, the exit window and the same portion of the tissue of the person to the external optical sensor. Variations in the optical effects of the tissue on the measurement can be measured with the second optical signal and used to improve measurement accuracy. A blocking element fills a measurement region in the measurement path when measurements are not being made. This blocking element prevents the accumulation of tissue in the measurement region.

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Chicago, IL, United States of America

Shannon Julia Ebner