Analytical instrument for testing parameters of pool water

- Palintest Ltd.
Description

FIG. 1 is a front perspective view of an analytical instrument for testing parameters of pool water, showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front perspective view thereof, with the top in open position; and,

FIG. 4 is a rear perspective view thereof.

The bottom plan view of the analytical instrument for testing parameters of pool water, which is not disclosed is plain and unornamented.

Referenced Cited
U.S. Patent Documents
D256567 August 26, 1980 Voss et al.
D282644 February 18, 1986 Collister
D308833 June 26, 1990 Mowka, Jr.
D316826 May 14, 1991 Neuman
3381572 May 1968 Tuwiner
4409182 October 11, 1983 Macklem
4454775 June 19, 1984 Ellis
4904605 February 27, 1990 O'Brien et al.
Patent History
Patent number: D335464
Type: Grant
Filed: May 24, 1990
Date of Patent: May 11, 1993
Assignee: Palintest Ltd. (Tyne & Wear)
Inventor: Colin E. Marks (Tyne & Wear)
Primary Examiner: Stella Reid
Assistant Examiner: I. Simmons
Law Firm: Rodman & Rodman
Application Number: 7/528,740
Classifications
Current U.S. Class: Chemical (12) (D10/81)