| Patent Number |
Title Of Patent |
Date Issued |
| 4626321 |
Distillation systems and methods |
December 2, 1986 |
| A method of distillation employing a heat pump (which may be driven by a compressor) using a vapor stream from within the distillation system as a heat source and a liquid stream from within the distillation system as a heat sink. The selection of heat-source vapors and heat-sink liquid |
| 4556430 |
Process for hydrolysis of biomass |
December 3, 1985 |
| A process for hydrolysis of biomass wherein the biomass is mixed with a small amount of an aqueous acid to produce a wet meal. A non-aqueous carrier fluid is used to form a slurry of the biomass, and the temperature and pressure are established at appropriate levels to effect hydrolysis |
| 4393450 |
Three-dimensional model-making system |
July 12, 1983 |
| A three-dimensional model-making system that employs a cutting wire under tension and acting in a reciprocating mode to shape an easily-machinable material. The machine has three servo-driven axes including an x and y axis and a rotational axis. |
| 4372692 |
Electronic device to record temperatures and the time of occurrence |
February 8, 1983 |
| A digital min-max thermometer that periodically records temperature and the corresponding time of that temperature and rates minimum and maximum values of temperature for a predetermined time interval (e.g., a 24-hour period). The minimum and maximum values can then be displayed on deman |
| 4286465 |
Electronic device to record temperatures and the time of occurrence |
September 1, 1981 |
| A digital min-max thermometer that periodically records temperature and the corresponding time of that temperature and rates minimum and maximum values of temperature for a predetermined time interval (e.g., a 24-hour period). The minimum and maximum values can then be displayed on deman |
| 4237226 |
Process for pretreating cellulosic substrates and for producing sugar therefrom |
December 2, 1980 |
| Processes for treating cellulosic substances prior to hydrolysis which lead to shortening hydrolysis time and to increasing sugar yield. As exemplary, an aqueous slurry of the cellulosic substance is acidified and heated to and maintained at a temperature to produce a change in the cellu |
