Laboratory nephelometer

- Hach Company
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Description

FIG. 1 is a perspective view of a laboratory nephelometer 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
D263033 February 16, 1982 Calhoun
D278041 March 19, 1985 Clarke
D296086 June 7, 1988 Thompson
D309867 August 14, 1990 Johnson
3702734 November 1972 Lindahl et al.
3873273 March 1975 Moran et al.
3964867 June 22, 1976 Berry
4156570 May 29, 1979 Wardlaw
5288646 February 22, 1994 Lundsgaard et al.
Other references
  • Cole-Palmer; Digital Nephelometer; .COPYRGT.1989; p. 1037.
Patent History
Patent number: D363676
Type: Grant
Filed: Oct 29, 1993
Date of Patent: Oct 31, 1995
Assignee: Hach Company (Loveland, CO)
Inventors: Mark E. Anderson (Loveland, CO), Richard J. Cooper (Loveland, CO), Ernie R. Paoli (Loveland, CO), Robert D. Stream (Loveland, CO)
Primary Examiner: Antoine Duval Davis
Attorney: Dean P. Edmundson
Application Number: 0/14,821
Classifications
Current U.S. Class: Electrical Property (D10/75)