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. 28, 1983
Filed:
Oct. 29, 1981
Daryl L Myers, Lawrenceville, GA (US);
Stanley Rice, Atlanta, GA (US);
Western Electric Company, Inc., New York, NY (US);
Abstract
A system (20) for providing clean air to an apparatus (24) for drawing lightguide fiber (21) from a preform (22) includes a plenum (52) and ducts through which room air is pulled and filtered. The filtered air is flowed into each of a plurality of stacked enclosures (66, 67, and 68) each of which surrounds partially the drawing apparatus and portions of the preform and/or fiber. Also, the filtered air is directed transversely past the fiber and preform at a velocity which is sufficiently low to avoid undue flutter of the fiber. Filters are arranged in ascending magnitude of efficiency proceeding from an intake (41) for the room air to the vicinity of the preform and fiber. A delivery system which is associated with each drawing apparatus is considerably less expensive than a clean room and allows maintenance of any one system or its associated drawing apparatus without discontinuing the drawing operation of other systems in the same room.