The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 1982
Filed:
Feb. 29, 1980
Thomas A Jennings, Bala Cynwyd, PA (US);
T. A. Jennings Associates, Inc., Bala Cynwyd, PA (US);
Abstract
A method and apparatus for determining the low temperature characteristics of materials measures the resistivity of a sample material and the resistivity of a comparision material and plots the ratio of the resistivity of the comparision material to the resistivity of the sample material versus the temperature of the sample material. In addition, the method and apparatus measures the temperature of the sample and the temperature of a reference material and plots the difference there between as a function of the temperature of the reference material. The method and apparatus is usable in monitoring and/or controlling lyophilization appartus in order to increase the efficiency of the freeze drying process, that is, increasing product yield while reducing processing time.