Present invention refers to energy storage and release device made of cold drawn steel
wire for ejection of aerodynamically shaped Airfoil enclosure that houses various
electronic modules, having a deflection of 60mm to65mm.
BACKGROUND OF THE INVENTION
Aerodynamically shaped airfoil enclosure is mounted on Release system by means of
mechanical springs, having spring constant of 1.47N/mm. Spring is compressed &
considerable amount of energy is stored in the spring during mounting of airfoil
enclosure (weight ≤10 Kg.). Spring in conjunction with gas Pressure Cartridge ejects the
system (here airfoil enclosure).
SUMMARY OF PRESENT INVENTION
In accordance with one aspect of present invention the material of present invention is
cold drawn steel Grade 4.
In accordance with second aspect of present invention, it has spring index of 12.
In accordance with third aspect of present invention, it has a wire diameter of 03mm.
In accordance with another aspect of present invention, it has a Mean Coil diameter of
36mm.
In accordance with yet another aspect of present invention, it has 12 nos. of working
coils.
In accordance with one more aspect of present invention, it has free length of 109mm.
Annexure-II
BRIEF DESCRIPTION OF THE DRAWINGS
The features and advantages of the present invention will become more apparent and
descriptive in the description when considered together with figures/flow charts
presented:
Fig 1 shows the installation of invention on respective locator.
DETAILED DESCRIPTION
Present invention refers to energy storage and release device made of cold drawn steel
wire for ejection of aerodynamically shaped Airfoil enclosure (weight ≤10 Kg.) that
houses various electronic modules, having a deflection of 60mm to65mm.
Aerodynamically shaped airfoil enclosure is mounted on Release system by means of
mechanical springs, having spring constant of 1.47N/mm. Spring is compressed &
considerable amount of energy is stored in the spring during mounting of airfoil
enclosure (weight ≤10 Kg.). Spring in conjunction with gas Pressure Cartridge ejects the
system (here airfoil enclosure).
The spring (101) 03 nos. is mounted on Spring Locator (102) 03 nos.which is then
fastened on to the base plate (103) by using St.Steel Screws (104). Considerable
amount of energy is stored in during installation of airfoil enclosure on to the springs.
SPECIFICATION:
• Material: cold drawn steel Grade 4
• Spring Index = 12
• Wire diameter (d) = 3 mm(calculated above)
• Mean coil diameter (DM) = 36 mm (C= D/d)
• No. of working coils = 12 (calculated above)
• Free Length = 109mm
• FOS = 3 (Maximum Permissible Stress/Working Stress) =
(990/329.76)

WE CLIAMS:-
Accordingly, the description of the present invention is to be considered as illustrative only and is for the purpose of teaching those skilled in the art of the best mode of carrying out the invention. The details may be varied substantially without departing from the spirit of the invention, and exclusive use of all modifications which are within the scope of the appended claims is reserved. We Claim that

1. Material of present invention is cold drawn steel Grade 4.
2. The system according to claim 1, has a spring index of 12.
3. The system according to claim 1, has wire diameter of 03mm.
4. The system according to claim 1, 2 & 3, has men coil diameter of 36mm.
5. The system according to claim 1, 2 & 3, has 12 nos. of working coils.
6. The system according to claim 1,2,3,4 & 5 has free length of 109mm.
7. The system according to claim 1, 2,3,4,5 & 6 has a spring constant of 1.47N/mm. ,TagSPECI:As per Annexure-II