IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0733981
(2015-06-09)
|
등록번호 |
US-9500448
(2016-11-22)
|
발명자
/ 주소 |
- Nance, Christopher J.
- Hanna, Bradley L.
- Wild, Edwin J.
|
출원인 / 주소 |
|
대리인 / 주소 |
Harness, Dickey & Pierce, P.L.C.
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
3 |
초록
▼
An initiator assembly having a base, first and second conductive elements, a first electrically insulating member and an energetic material. The first conductive element, which is configured to receive an electrical input, is coupled to the base and includes a tip. The first electrically insulating
An initiator assembly having a base, first and second conductive elements, a first electrically insulating member and an energetic material. The first conductive element, which is configured to receive an electrical input, is coupled to the base and includes a tip. The first electrically insulating member is disposed over the tip. The second conductive element has a bridge that is disposed over the first electrically insulating member. The bridge is configured to vaporize in response to transmission of the electrical input from the tip of the first conductive element to the bridge. The energetic material is disposed over the bridge. Energy produced during vaporization of the bridge is transmitted to the energetic material to initiate at least one of a combustion event, a deflagration event and a detonation event in the energetic material. A method for operating an initiator assembly is also provided.
대표청구항
▼
1. An initiator assembly comprising: a base;a first contact coupled to the base, the first contact defining a first bridge element;a first electrically insulating member disposed over the first bridge element such that the first bridge element is disposed along an axis between the base and the first
1. An initiator assembly comprising: a base;a first contact coupled to the base, the first contact defining a first bridge element;a first electrically insulating member disposed over the first bridge element such that the first bridge element is disposed along an axis between the base and the first electrically insulating member;a second bridge element coupled to the first electrically insulating member such that the first electrically insulating member is disposed along the axis between the first bridge element and the second bridge element;a flyer layer coupled to the second bridge element;a barrel coupled to the base and disposed over the second bridge element and at least a portion of the flyer layer, the barrel being disposed along the axis; andan energetic material disposed along the axis, the energetic material being positioned so as to receive energy from a flyer formed from the flyer layer when the initiator assembly is operated to vaporize the first and second bridge elements via transmission of electrical energy through the first electrically insulating member. 2. The initiator assembly of claim 1, wherein the energetic material is a secondary explosive. 3. The initiator assembly of claim 1, wherein the second bridge element has a semi-circular end that overlaps an end of the first bridge element. 4. The initiator assembly of claim 3, wherein the first bridge element has a semi-circular tip is disposed under the second bridge element. 5. The initiator assembly of claim 4, wherein an edge of the semi-circular end of the second bridge element and an edge of the semi-circular tip of the first bridge element cooperate to form a circle. 6. The initiator assembly of claim 1, wherein a trigger element and a second electrically insulating member are received between the first electrically insulating member and the second bridge element, the trigger element being disposed along the axis between the first and second electrically insulating members and being disposed along the axis. 7. The initiator assembly of claim 6, wherein the second bridge element has a first area and wherein a portion of the trigger element that is in-line with the second bridge element along the axis has a second area and wherein the second area is less than ten percent of the first area. 8. A method comprising: providing an initiator assembly having a first bridge element, a second bridge element, a flyer layer, a barrel and an energetic material, the first bridge element and the second bridge element being spaced vertically apart along an axis, the flyer layer overlying the second bridge element, the barrel defining a barrel aperture and being disposed over at least a portion of the flyer layer, the energetic material being disposed along the axis and positioned on a side of the barrel opposite the flyer layer; andapplying electrical power to the first bridge element to vaporize the first and second bridge elements, wherein electrical power applied to the first bridge element is transmitted through an electrically insulating material that is disposed between the first and second bridge elements along the vertical axis, wherein vaporization of the first and second bridge elements causes a portion of the flyer layer within the barrel aperture to be expelled from the barrel. 9. The method of claim 8, wherein the initiator assembly further comprises first and second electrically insulating members and a trigger element that is disposed between the first and second electrically insulating members, and wherein the method further comprises operating the trigger element. 10. The method of claim 9, wherein operation of the trigger element damages the first and second electrically insulating members. 11. The method of claim 9, wherein operation of the trigger element reduces or eliminates the electrical insulation between the first and second bridge elements that is otherwise provided by the first and second electrically insulating members. 12. An initiator assembly comprising: a base;a first conductive element coupled to the base, the first conductive element including a first bridge element and being configured to receive an electrical input;a first electrically insulating member disposed over the first bridge element;a second conductive element having a second bridge element that is disposed over the first electrically insulating member, the second bridge element being configured to vaporize with the first bridge element in response to transmission of the electrical input from the first bridge element to the second bridge element; andan energetic material disposed over the second bridge element;wherein energy produced during vaporization of the first and second bridge elements is transmitted to the energetic material to initiate at least one of a combustion event, a deflagration event and a detonation event in the energetic material. 13. The initiator assembly of claim 12, wherein the energetic material is a secondary explosive. 14. The initiator assembly of claim 12, wherein the second bridge element has a semi-circular end that overlaps the first bridge element. 15. The initiator assembly of claim 14, wherein the first bridge element ends in a semi-circular segment that is disposed under the second bridge element. 16. The initiator assembly of claim 15, wherein the semi-circular end of the second bridge element and the semi-circular segment of the first bridge element cooperate to define a circular area. 17. The initiator assembly of claim 12, wherein a trigger element and a second electrically insulating member are received between the first electrically insulating member and the second bridge element, the trigger element being disposed in-line with the first bridge element and the second bridge element and between the first and second electrically insulating members. 18. The initiator assembly of claim 17, wherein the second bridge element has a first area and wherein a portion of the trigger element that is in-line with the second bridge element has a second area and wherein the second area is less than ten percent of the first area. 19. The initiator assembly of claim 17, wherein the second bridge element is electrically coupled to a second conductive element, wherein the trigger element is electrically coupled to a pair of switch contacts, and wherein portions of each of the first and second conductive elements and the switch contacts are mounted directly to the base.
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