Optical cuvette insert for use with differential spectrofluorometer and absorption meter

- Farrand Optical Co., Inc.
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Description

FIG. 1 is a perspective view of an optical cuvette insert for use with differential spectrofluorometer and absorption meter showing our new design;

FIG. 2 is a front elevation of the design of FIG. 1;

FIG. 3 is a side elevation view of the design of FIG. 1;

FIG. 4 is a rear elevation view of the design of FIG. 1;

FIG. 5 is a top plan view of the design of FIG. 1; and

FIG. 6 is a bottom plan view of the design of FIG. 1.

Referenced Cited
U.S. Patent Documents
D225161 November 1972 Ritchie
D230587 March 1974 Praglin et al.
D232037 July 1974 Hach et al.
3854050 December 1975 Peterson et al.
3886363 May 1975 Ohnishi et al.
Other references
  • Standard Scientific Supply Corp., 1964, p. 841, item No. #912360, Cuvette, "Coleman".
Patent History
Patent number: D258144
Type: Grant
Filed: Nov 11, 1977
Date of Patent: Feb 3, 1981
Assignee: Farrand Optical Co., Inc. (Valhalla, NY)
Inventors: Eli A. Kallet (New York, NY), Samuel Cravitt (Hartsdale, NY), Leonard R. Caputo (Yonkers, NY)
Primary Examiner: Bernard Ansher
Attorney: John L. Downing
Application Number: 5/850,568
Classifications
Current U.S. Class: D24/17; D24/99
International Classification: D2402;