Portable colorimeter

- Hach Company
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Description

FIG. 1 is a perspective view of a colorimeter showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D318245 July 16, 1991 Sierra et al.
D321488 November 12, 1991 Sierra et al.
4266877 May 12, 1981 Bodart
4549081 October 22, 1985 Ace
4986665 January 22, 1991 Yamanishi et al.
5013155 May 7, 1991 Rybak
5037614 August 6, 1991 Makita et al.
5083868 January 28, 1992 Anderson
Patent History
Patent number: D336444
Type: Grant
Filed: Feb 21, 1990
Date of Patent: Jun 15, 1993
Assignee: Hach Company (Loveland, CO)
Inventors: Mark E. Anderson (Loveland, CO), Richard J. Cooper (Loveland, CO), Robert D. Stream (Loveland, CO)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Antoine D. Davis
Attorney: Dean P. Edmundson
Application Number: 7/482,687
Classifications
Current U.S. Class: Chemical (12) (D10/81)