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. 17, 1990
Filed:
Jul. 14, 1986
Applicant:
Inventors:
John L Marty, White Bear Lake, MN (US);
Philip S Plumbo, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B67D / ;
U.S. Cl.
CPC ...
2221445 ; 222255 ; 222145 ; 222135 ; 222148 ; 417-8 ; 137567 ;
Abstract
Mixing concentrates requires the precise dispensing of predetermined amounts of concentrate into predetermined amounts of liquid and such mixes can be obtained by the use of a system having two positive displacement pumps, one for pumping larger volumes with each operation than the second pump and a pressure regulator to maintain a predetermined pressure on the solvent carrier fluid for the mixture.