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:
May. 17, 2005
Filed:
Apr. 22, 2003
Applicants:
Perry A. Palumbo, Fort Collins, CO (US);
Paul D. Schlegel, Loveland, CO (US);
Jeffrey M. Huhta, Loveland, CO (US);
Richard P. Kolman, Loveland, CO (US);
Inventors:
Perry A. Palumbo, Fort Collins, CO (US);
Paul D. Schlegel, Loveland, CO (US);
Jeffrey M. Huhta, Loveland, CO (US);
Richard P. Kolman, Loveland, CO (US);
Assignee:
Hach Company, Loveland, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N021/00 ;
U.S. Cl.
CPC ...
Abstract
A turbidimeter having an arrangement of internal surfaces, optical surfaces, and optical restrictions to the field of view of both the illumination and the detector means to significantly improve the lower detection limit of the turbidimeter by reducing the detected signal due to stray light.