Non-explosive device for releasably securing components
An arrangement for releasably securing or connecting together at least two components includes a securing element that interconnects the components and that can be melted, thermally decomposed or otherwise separated by applying heat thereto. The securing element is preferably a monofilament or multifilament thread of natural or synthetic material, such as high strength polymer material. The arrangement further preferably includes a compression bracing structure such as a housing that bears compression forces between the components, while the securing element bears tension forces. The arrangement further preferably includes an electric resistance heating element that can be electrically energized and is arranged to apply heat to the thread, so as to melt or decompose and separate the thread and thereby release and separate the two interconnected components.
1. An arrangement releasably securing components to one another comprising:
a first component;
a second component;
a securing element that mechanically connects said first and second components to one another and that is separable by application of heat thereto, wherein said securing element comprises a thread configured as a continuous endless closed loop of a continuous endless thread material forming said thread, wherein said closed loop includes two straight thread strands that extend respectively along two straight lines between said first and second components and exert a tension force along said two straight thread strands between said first and second components; and
at least one heating device comprising at least one electric resistance heating coil that spirals around at least one of said two straight thread strands of said securing element so as to generate and externally apply heat to said securing element and thereby separate said securing element to release said components from one another.
2. The arrangement according to claim 1 , wherein said at least one electric resistance heating coil comprises two electric resistance heating coils that respectively individually spiral around said two thread strands of said securing element.
3. The arrangement according to claim 1 , wherein said securing element is a non-explosive device.
4. The arrangement according to claim 1 , wherein all parts of said arrangement other than said components are first and second and remain attached respectively to at least one or the other of said components at all times so that no fragments of said securing element or other parts of said arrangement are released from said components when said securing element is separated by the application of the heat thereto.
5. The arrangement according to claim 1 , wherein said securing element is a tensile securing element that is able to support only tensile forces and not compressive forces between said first and second components.
6. The arrangement according to claim 1 , wherein said securing element consists of said thread.
7. The arrangement according to claim 1 , wherein said thread is a monofilament thread.
8. The arrangement according to claim 1 , wherein said thread is a multifilament thread or a multifiber thread.
9. The arrangement according to claim 1 , wherein said thread consists of a naturally occurring material.
10. The arrangement according to claim 1 , wherein said thread consists of a synthetic material.
11. The arrangement according to claim 1 , wherein said thread consists of a high-strength synthetic polymer.
12. The arrangement according to claim 1 , wherein said thread consists of a high-modulus polyethylene.
13. The arrangement according to claim 1 , wherein said thread is separable by melting due to the application of the heat thereto.
14. The arrangement according to claim 1 , wherein said thread is separable by thermal decomposition due to the application of the heat thereto.
15. The arrangement according to claim 14 , wherein said thread consists of a polymer, and said arrangement further comprising an oxidizing agent that is applied to said thread and that assists separating said thread through the thermal decomposition due to the application of the heat thereto.
16. The arrangement according to claim 1 , further comprising an adhesive that adhesively fixes said thread to at least one of said first and second components.
17. The arrangement according to claim 1 , further comprising a compression bracing structure that bears against and extends between said first and second components so as to bear compression forces between said first and second components.
18. The arrangement according to claim 17 , wherein said securing element is installed with a pre-tension between said first and second components, said pre-tension is countered by said compression bracing structure, and said securing element is adjustably connected to at least one of said components so that said pre-tension is adjustable and settable.
19. The arrangement according to claim 1 , wherein said thread consists of a polymer material.
20. An arrangement releasably securing components to one another comprising:
a first component;
a second component;
a securing thread of a polymer material that mechanically connects said first and second components so as to bear tension forces therebetween, and that is separable by melting or thermal decomposition by application of heat thereto, wherein said securing thread is configured as a continuous endless closed loop of a continuous endless thread material forming said securing thread;
an electric resistance heater arranged proximate to said securing thread so as to generate and apply the heat to said securing thread and thereby separate said securing thread; and
a compression bracing structure that bears against and extends between said first and second components so as to bear compression forces between said first and second components.
21. The arrangement according to claim 20 , wherein said closed loop of said securing thread includes two straight thread strands that extend respectively along two straight lines between said first and second components and exert said tension forces along said two straight thread strands between said first and second components, and wherein said electric resistance heater comprises two electric resistance heater coils arranged respectively with a respective one of said thread strands extending through each one of said heater coils.