Cuvette for projection display of chemical experiments

• US 4,605,536 A
• Filed: 05/29/1984
• Issued: 08/12/1986
• Est. Priority Date: 05/29/1984
• Status: Expired due to Fees

• Current Assignee: Veb Metaplast Quedlinburg
• Original Assignee: Veb Metaplast Quedlinburg
• Inventors: Kuhnert, Rudi, Legall, Wolf-Dieter
• Primary Examiner(s): Chiesa, Richard L.
• Application Number:
  US06/614,869
• Time in Patent Office: 805 Days
• Field of Search: 422/55, 422/58-60, 422/99, 422/104, 422/130, 422/310, 356/246, 434/370
• US Class Current: 422/549
• CPC Class Codes: B01L 3/50 Containers for the purpose of retaining a material to be analysed, e.g. test tubes devices for taking samples of blood A61B5/15
• CPC Class Codes: G09B 23/24 for chemistry

Abstract

A cuvette for the projection display of chemical experiments comprises a rectangular parallelopipedal block of transparent material, e.g. glass or a transparent synthetic resin, which is formed with one or more compartments having the shapes of chemical experiment vessels and in requisite passages communicating therewith so that complete chemical experiments can be carried out within the vessels and demonstrated by projection display.

Claims

1. A cuvette for demonstrating chemical experiments which comprises an elongated rectanguler parallelopipedal block of transparent material formed unitarily with plane-parallel broad surfaces transluminable for projection display and with parallel upper and lower surfaces, said block being formed between said broad surfaces with a plurality of upright vertically elongated compartments, at least one of which is upwardly open of the shape of chemical experiment vessels, spaced apart in said block, means defining in the material of said block at least one elongate passage communicating between said compartments and terminating in lateral or bottom walls of said compartments at opposite ends at respective ones of said compartments, the walls of said compartments and said passage being defined exclusively by said material unitarily with said block, and means on said block for inducing a chemical reaction in at least one of said compartments, all of said compartments opening at said upper surface.

2. The cuvette defined in claim 1 wherein at least one of said compartments is provided with a further passage formed in said block and constituting a sidearm thereof.

3. The cuvette defined in claim 1 wherein said passage has generally a Z shape.

4. The cuvette defined in claim 1 wherein said passage has an undulating configuration within said block.

5. The cuvette defined in claim 1 wherein said block is formed with a cutout separating two portions, said compartment being in one of said portions, the other of said portions being provided with another compartment, further comprising means bridging said cutout between said portions to interconnect said compartments.

6. The cuvette defined in claim 5 wherein said block has a maximum thickness of about 20 mm and is composed of glass or a transparent synthetic resin.

7. The cuvette defined in claim 5 wherein said means includes a combustion tube which can be externally heated.

8. The cuvette defined in claim 7 wherein said block has a maximum thickness of about 20 mm and is composed of glass or a transparent synthetic resin.

9. The cuvette defined in claim 1 wherein said compartment has a shape of a test tube.

10. The cuvette defined in claim 9 wherein said block has a maximum thickness of about 20 mm and is composed of glass or a transparent synthetic resin.

11. The cuvette defined in claim 1 wherein said compartment has a shape of a round bottom flask with a narrow neck.

12. The cuvette defined in claim 11 wherein said block has a maximum thickness of about 20 mm and is composed of glass or a transparent synthetic resin.

13. The cuvette defined in claim 1 wherein said compartment forms a reservoir for a liquid and is provided with an opening at its bottom for discharging gas into a vessel inserted into said compartment and forming a liquid trap therein.

14. The cuvette defined in claim 13 wherein said block has a maximum thickness of about 20 mm and is composed of glass or a transparent synthetic resin.