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. 22, 1985
Filed:
Apr. 23, 1984
Gerhard R Clusener, Manhasset, NY (US);
Other;
Abstract
Dilatometers are described which employ measuring heads having multiple linear variable differential transformer dilation sensors for concurrently measuring the thermal dilation of multiple specimens within a single conventional electric tube furnace. The sensors, which have their cores coupled to calibrating micrometers, are positioned in a closely separated cluster in which each sensor is parallel, abreast and adjacent to each other. Separate parallel pushrods, which abut separate specimens within a common tubular specimen holder, are attached to the axially mobile coil of each sensor at the point closest to the center of the cluster. The resulting close separation of the parallel pushrods and their specimens within a small diameter specimen holder permits the use of an energy efficient electric tube furnace having a small diameter oriface and facilitates uniform heating of the pushrods and specimens. The capacity of such dilatometers to handle large numbers of specimens in a short period, as is often required for production control purposes, can be further enhanced by employing two such measuring heads with their pushrods and specimen holders being inserted into opposite ends of the oriface of the tube furnace.