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. 04, 2000
Filed:
Feb. 04, 1999
Applicant:
Inventors:
Thomas W Martin, Little Canada, MN (US);
John M Horn, Woodbury, MN (US);
Assignee:
3M Innovative Properties Co., St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433 90 ; 433 89 ; 604236 ; 604310 ;
Abstract
A dispensing cartridge especially suitable for use with a hand-held applicator for dispensing liquids having a relatively low viscosity has a chamber and at least one compressible, porous material received in the chamber. Each of the porous materials receives a quantity of a liquid composition. As a piston is advanced in the chamber, each porous material is compressed to cause the composition or compositions to be discharged through an outlet opening.