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:
Jun. 02, 1992
Filed:
Jul. 20, 1990
Rolf Tamm, Salem, DE;
Gunther Rodel, Owingen, DE;
Bodenseewerk Perkin-Elmer GmbH, Uberlingen, DE;
Abstract
The manufacturing of a furnace for electro-thermal atomization of samples for spectroscopical purposes having a cavity for the accommodation of sample is simplified and improved. To this end, the furnace consists of two halves which are joined along a separating plane intersecting the cavity. The furnace is made of graphite and provided with a layer of pyrolytic graphite. A platform for the accommodation of the sample is integral with one of the halves. A method for the production of such a furnace comprises the method steps: (a) producing two blank parts which engage each other with planar surfaces; (b) machining the two blank parts in common so that a cavity intersected by the plane of the planar surfaces is generated and each of the blank parts forms one half of the furnace; (c) separating the two halves of the furnace which were produced in this way; (d) coating the halves of the furnace separately, the inner surfaces of the cavity forming outer surfaces of each of the two halves of the furnace; and (e) joining the halves of the furnace, generated in this way, to a furnace. There is also a method described for decreasing the refuse in the manufacturing of the furnaces.