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. 04, 1977
Filed:
Dec. 18, 1975
Sergei Vyacheslavovich Baburin, Moskovskaya oblast, Pushkinsky raion, SU;
Vasily Ivanovich Akimov, Pushkino Moskovskoi oblasti, mikroraion, SU;
Vladimir Alexandrovich Gorbushin, Khotovo Moskovskoi oblasti, SU;
Alexandr Petrovich Muraviev, Moskovskaya oblast, Pushkinsky raion, SU;
Valery Nikolaevich Nepein, Moskovskaya oblast, Pushkinsky raion, SU;
Mikhail Vladimirovich Frolov, Moscow, SU;
Sergei Arnoldovich Aizenberg, Leningrad, SU;
Evgeny Mikhailovich Golovko, Leningrad, SU;
Alexandr Fedorovich Kamenev, Leningrad, SU;
Igor Alexandrovich Sergeev, Leningrad, SU;
Other;
Abstract
An apparatus for making sheets of fibrous material in a chamber having perforated top and side inner walls into which an air stream mixture with fibers therein is introduced through a nozzle over a travelling screen conveyor on which the fibers are settled to form a mat thereon. The chamber has solid outer walls defining a space over the chamber and on the sides thereof into which air under pressure is introduced to keep the fibers in the chamber from contacting the inner walls and becoming electrostatically charged. The apparatus is provided with mechanism for applying a vacuum through the air-permeable conveyor to settle the fibers thereon and for forming a sheet of fibrous material thereon.