CUVETTE

• US 3,759,374 A
• Filed: 06/30/1970
• Issued: 09/18/1973
• Est. Priority Date: 07/03/1969
• Status: Expired due to Term

• Current Assignee: Alfred Stein, Arnold Hartel, Roland Helger, Wilhelm Baumer
• Original Assignee: Alfred Stein, Arnold Hartel, Roland Helger, Wilhelm Baumer
• Inventors: Helger, Roland, Hartel, Arnold, Stein, Alfred, Baumer, Wilhelm
• Primary Examiner(s): Dixson, Jr., William T.
• Application Number:
  US05/051,048
• Time in Patent Office: 1,176 Days
• Field of Search: 206/65E,65R,45.34,56AB 215/1C,37R 264/334 356/246 220/82R
• US Class Current: 206/431
• CPC Class Codes: G01N 21/03 Cuvette constructions
• CPC Class Codes: G01N 33/5304 Reaction vessels, e.g. agglutination plates for solid-phase systems G01N33/543

Abstract

Disposable cuvettes with square apertures which serve both as a container for reagents used in analytical determinations and for conducting photometric determinations therein are economically sealed by bonding a film or foil to the upper edges of the cuvettes which define their aperture and thereafter separating the sealed cuvettes thus joined together by severing the film or foil along lines defined by their side walls.

Claims

1. A sealed cuvette having a rectangular or square basal surface and side walls whose inner surfaces form a truncated pyramid having a side wall inclination of 0*-5* and whose upper edges form a rectangular or square aparature corresponding in dimensions to the inner cross section of the cuvette and whose side walls have a recessed outer face at their upper end which forms a shoulder in said side walls extending to their upper edge, formed of a transparent and dimensionally stable plastic wHich is light-permeable in at least a portion of the wavelength range from 200-800 nanometers and adapted for string solids and liquids and for the optical measurement of analytical samples, said aperture being sealed by a foil or film bonded to said upper edge of said side walls.

2. A cuvette according to claim 1, formed of polystyrene.

3. A cuvette according to claim 1, formed of polymethyl methacrylate.

4. A cuvette according to claim 1, whose aperture is sealed with aluminum foil.

5. A cuvette according to claim 1 wherein said foil or film bears identifying indicia on its outer surface.

6. A cuvette according to claim 5 whose aperture is sealed with aluminum foil.

7. A plurality of cuvettes according to claim 1 whose side walls are in face-to-face contact and which are joined together by the film or foil sealing their aperture.

8. A cuvette according to claim 7 wherein said foil or film bears identifying indicia on its outer surface.

9. A cuvette according to claim 2 whose aperture is sealed with aluminum foil.