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:
Feb. 24, 1987
Filed:
Feb. 08, 1985
Applicant:
Inventors:
Johann Chatzipetros, Frechen, DE;
Bernhard Dujka, Julich, DE;
Frank Elf, Kaarst, DE;
Georg Will, Swisttal-Buschoven, DE;
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F25B / ;
U.S. Cl.
CPC ...
6251 / ; 62376 ; 378 81 ;
Abstract
An Euler's goniometer for low-temperature diffractometry is rotatable about two turning circles and is arranged within a chamber filled with a coolant. Each of the turning circles - that is the chi-circle and the phi-circle - is constituted by a worm wheel which is driven in a stepwise manner by a worm and a stepper motor driving the worm. For providing a compact construction, the stepper motors and the actuated worms are arranged within the chamber as well.