SUMMARY OF THE INVENTION

Generally used detonators contain primary explosives like lead azide and lead styphnate.

These two chemicals are very sensitive to friction and impact. The detonators made of
these chemicals should be handled very carefully

What was your solution to the problem; or what improvement did you achieve; or what desirable unexpected effect did you discover? Also, for what primary purpose can the invention be used?

A new detonator has been made by substituting the hazardous chemicals with a new chemical primer, which is relatively much safer & do not contained lead.

In the present invention; a new detonator was developed which can be used with safety fuse, electrical fuse head or non-electric shock tube. It can be instantaneous or with delay.

These detonators are made without any lead salts and sensitive primary explosives. These detonators are safe to handle. These detonators function exactly like conventional detonators. The application of these detonators is also same as that of conventional detonators. The safety in handling is very high when compared to conventional detonators.

Earlier safe and lead free detonators were made. But these detonators are costly and processing of these detonators also tedious.

The present invented detonator manufacturing is simple. They are safe to handle. No additional costs are involved.

A detonator shell; secondary explosive; A delay element; A safe primary explosive; A metallic cup.

A detonator shell can be made of copper coated steel; aluminum; copper; brass etc. A delay element can be chemical delay or electronic delay.

A cup can be a metallic cup made of steel; copper lead or aluminium etc. secondary explosive can be RDX; HMX; tetryl; PETN; teracene etc.

The safe primary explosive can be complex compound made of nitrates of zinc; cadmium; nickel; palladium and/or platinum with hydrazine sulphate; Hydrazine hydrate; anhydrous hydrazine with various concentration varying from 5% - 98%.

ANNEXURE-1

Example-1:

Aluminium shell 45 mm length is taken. In that 400 ± 100 mg of
PETN/RDX/HMX/TETRYL/TETRACENE is filled and pressed. About 350 ± 100 mg of primer is added and over that one cup is placed and pressed. 50 detonators are made in same way & assembled with electrical squib. All the safety and performance tests are conducted and results are found to be as per the specifications.

Example-2:

Aluminium shell 45 mm length is taken. In that 400 ± 100 mg of
PETN/RDX/HMX/TETRYL/TETRACENE is filled and pressed. About 350 ± 100 mg of primer is added. A delay element of required timing is placed over the primer charge and pressed. The filled shells are assembled with delay fuse head and long plug and crimped. Similar type of 50 detonators are made. All the safety and performance tests are conducted and results are found to be as per the specifications.

Example-3:

Aluminium shell 45 mm length is taken. In that 400 ± 100 mg of
PETN/RDX/HMX/TETRYL/TETRACENE is filled and pressed. About 350 ± 100 mg of primer is added and over that the cup is placed and pressed. 50 numbers are made and fired with safety fuse. Results are as per the specification.

CLAIMS:

1. A detonator which can be used with safety fuse, electrical fuse head or non-electric shock tube, instantaneous or with delay, made without any lead salts and sensitive primary explosives, safe to handle.