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:
Aug. 23, 1994
Filed:
Mar. 16, 1990
Applicant:
Inventors:
Hugh M Arthur, Bucks, GB;
Francis A Labbe, Neuilly-sur-Seine, FR;
Assignee:
Molins plc, Bucks, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
429244 ; 81491 ; 8477 ; 28283 ; 68200 ; 118 63 ; 118 65 ; 118325 ; 118326 ; 118407 ; 118410 ; 118415 ; 131 79 ; 427175 ; 427373 ;
Abstract
Air is blown into filter tow during or immediately after the application of plasticizer; this foams and distributes the plasticizer in the tow. Air may be delivered from a porous plate closely adjacent to the path of the tow or from nozzles in an air injecting unit. Alternatively air may be used to foam plasticizer at a location remote from the tow and foamed plasticizer subsequently conveyed to and into the tow by a roller.