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:
Jul. 13, 1993
Filed:
May. 14, 1991
Applicant:
Inventor:
William E Deeds, Knoxville, TN (US);
Assignee:
Exxon Chemical Patents Inc., Linden, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
425 722 ; 264 22 ; 4251 / ; 425464 ;
Abstract
The apparatus of the present invention employs a collector drum with an electrically charged surface for use in preparing electrically charged meltblown fibrous webs. The apparatus may be used as a primary charging system or, alternatively, with other charging system to enhance the charging of the web. The invention produces webs with exceptional filtration properties.