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. 18, 1988
Filed:
Oct. 14, 1986
Serge Vendittelli, Syssinet, FR;
L'Unite Hermetique, La Verpilliere, FR;
Abstract
The invention relates to a method for determining a composite material constitutive of moving parts in a hermetically sealed refrigerating compressor, wherein a composite material, of which the initial mechanical and thermal properties fulfull the conditions corresponding to the mechanical and thermal stresses in compressors, is placed during a first determined test period T1 in an environment containing the chemical products that are present in a compressor, at a test temperature equivalent to the maximal operating temperature of a compressor, and wherein at the end of this period, its chemical and mechanical properties are measured, and compared with the initial mechanical or chemical properties, and it is assessed by calculation what such properties would become once the material would have been used in an environment of a compressor during a second period T2, longer than the first test period T1, and wherein this material is thus utilized for producing parts provided the assessed properties satisfy the required properties after an operating period corresponding to the second period T2.