Kit for the assembly of electrical circuits

• US 4,449,942 A
• Filed: 06/25/1982
• Issued: 05/22/1984
• Est. Priority Date: 07/03/1981
• Status: Expired due to Term

• Current Assignee: Yechiel Salit
• Original Assignee: Yechiel Salit
• Inventors: Salit, Yechiel
• Primary Examiner(s): Grieb, William H.
• Application Number:
  US06/392,328
• Time in Patent Office: 697 Days
• Field of Search: 434/224, 434/301, 434/379, 339/17 C, 339/125 R
• US Class Current: 434/224
• CPC Class Codes: G09B 23/185 for building block systems

Abstract

A kit for the assembly of various electrical circuitry, particlarly for didactical purposes comprising a selection of electrical or electronics components. Each component is mounted on an insulated board having extentions of a conductive material to which the component'"'"'s terminals are electrically connected. The boards are adapted to be interchangeably and releasably mounted on a base in the form of a prismatic block made of a rigid, electrical insulating material. Metallic sockets are installed within the blocks. Releasable fasteners, such as screws, are used for establishing electrical connection between each conductive extention and associated socket, and wire plugs are inserted into openings formed in the side surfaces of the block.

Claims

1. A kit for the assembly of electrical circuitry, particularly for didactical purposes, comprising:

a selection of electrical or electronics components;

each component being mounted on an insulated board having extentions of a conductive material to which the component'"'"'s terminals are electrically connected;

the boards being adapted to be interchangeably and releasably mounted on a base in the form of a prismatic block made of a rigid, electrical insulating material having a bottom, side and top surfaces;

metallic sockets installed within the blocks;

means for releasably fastening the boards to the blocks, thereby establishing electrical connection between a conductive extention thereof and a socket; and

openings formed in side surfaces of the block and in each socket for the insertion of wire plugs thereinto.

2. The kit as claimed in claim 1 wherein the boards are made from a printed-circuit panel whereby the conductive extentions are strips prepared by etching.

3. The kit as claimed in claim 2 wherein the blocks have a recessed top surface for receiving the boards.

4. The kit as claimed in claim 3 wherein said fastenering means are screws received through holes in the boards into tapped bores formed in said sockets.

5. The kit as claimed in claim 4 wherein the conductive extentions are in abutting contact with the sockets.

6. The kit as claimed in claim 4 wherein the holes are encircled by crimped metal eyelets, the eyelets being in electrical contacts with the conductive extentions.

7. The kit as claimed in claim 4 wherein said sockets are cylindrical, inserted into blind bores formed in the block.

8. The kit as claimed in claim 1 wherein said components are multiple-terminal components, such as resistors, transistors and integrated circuits.

9. The kit as claimed in claim 1 further including a junction block comprising a single socket with four of said openings.

10. The kit as claimed in claim 1 wherein said openings are provided with a coloured polarity indicating washer.