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:
Oct. 21, 1986
Filed:
Apr. 16, 1984
Gerhard R Clusener, Manhasset, NY (US);
Other;
Abstract
Dilatometers in which the dilation sensor, pushrod or rods and the specimen holder all are enclosed within a unitary hermetically sealed housing, including an elongated protective tube for the portion of the specimen holder that is inserted in an electric tube furnace. The housing, which is compact and can be evacuated and flushed with an inert or reducing gas to protect its contents from oxidation, can easily and quickly be withdrawn as a unit from a stationary or unopened furnace to facilitate the rapid installation of similar housings having specialized sensors or tubular enclosures designed for different applications. The sensor, push rod and specimen holder also can be readily removed as a unit from the housing, which permits rapid specimen changes without the necessity of withdrawing the protective tube from the furnace or realigning it after reinsertion. A dilation sensor also is described which utilizes a calibrating micrometer positioned abreast of a linear variable differential transformer. This compact design minimizes temperature differentials across the sensor and enhances accuracy.