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:
May. 16, 1978
Filed:
Sep. 27, 1976
Leonid Fedorovich Vereschagin, Moscow, SU;
Evgeny Nikolaevich Yakovlev, Moscow, SU;
Tatyana Dmitrievna Varfolomeeva, Moskoyskaya oblast, SU;
Alexandr Yakovlevich Preobrazhensky, Moscow, SU;
Vladislav Nikolaevich Slesarev, Moscow, SU;
Vasily Alexandrovich Stepanov, Moscow, SU;
Ljudmila Efimovna Shterenberg, Moscow, SU;
Institut Fiziki Vysokikh Daleny Akademi Nauk, SSSR, Moskovskaya oblast, SU;
Abstract
A method of producing polycrystalline diamond aggregates, wherein a carbon-containing material is given a required shape, after which, in the presence of a catalyst taken in the form of a powder whose envelope surrounds the carbon-containing material, said material is subjected to the action of pressure and simultaneous heating by an electric current pulse with a duration of 0.1 to 10.0 sec.