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. 05, 2003
Filed:
Dec. 14, 2000
Applicant:
Inventor:
Ulick Stafford, Wexford, IE;
Assignee:
Bausch & Lomb Incorporated, Rochester, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F26B 3/00 ; F26B 1/102 ;
U.S. Cl.
CPC ...
F26B 3/00 ; F26B 1/102 ;
Abstract
A combined fluidized bed dryer and absorption bed allows an absorbant to be dried to remove any moisture therefrom immediately followed by treating a product material with the dried absorbant, all in the same vessel, such that the absorbant is at its optimum dryness prior to treating the product material therewith The invention has particular application in the ophthalmic lens production where the absorbant is alumina and is used to remove methacrylic acid from liquid monomer prior to using the monomer in producing lenses.