PH and concentration meter

- Orion Research, Inc.
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Description

FIG. 1 is an isometric view from the front of a pH and concentration meter incorporating our design;

FIG. 2 is a left side view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a back view thereof.

Referenced Cited
U.S. Patent Documents
D312421 November 27, 1990 Trottmann
D336444 June 15, 1993 Anderson et al.
5083868 January 28, 1992 Anderson
Patent History
Patent number: D346753
Type: Grant
Filed: May 10, 1990
Date of Patent: May 10, 1994
Assignee: Orion Research, Inc. (Cambridge, MA)
Inventors: James Barbookles, Jr. (Malden, MA), Jeffrey S. Cohen (Wilmington, MA), Laura Brockway (Charlestown, MA), Thomas Paquette (Shrewsbury, MA), Paul Sydlowski (Wakefield, MA)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Antoine D. Davis
Law Firm: Cesari and McKenna
Application Number: 7/552,747