IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
|
출원번호 |
US-0620737
(2000-07-20)
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발명자
/ 주소 |
- Rawal, Suraj P.
- Kustas, Frank M.
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출원인 / 주소 |
- Lockheed Martin Corporation
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대리인 / 주소 |
Marsh, Fischmann & Breyfogle LLP
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인용정보 |
피인용 횟수 :
9 인용 특허 :
26 |
초록
▼
A lightweight insulating sandwich tile (110) having applications such as spacecraft and reusable launch vehicle thermal protection is disclosed. In one embodiment, the lightweight insulating sandwich tile (110) includes an outer structural facesheet (120) that is bonded or co-cured with an inner ins
A lightweight insulating sandwich tile (110) having applications such as spacecraft and reusable launch vehicle thermal protection is disclosed. In one embodiment, the lightweight insulating sandwich tile (110) includes an outer structural facesheet (120) that is bonded or co-cured with an inner insulating core (130). The outer structural facesheet (120) is comprised of carbon-carbon and includes an oxidation resistant layer (140) on an outer surface thereof. The oxidation resistant layer (140) may comprise a coating or surface treatment of, for example, MoSi2,amorphous SiCN, amorphous SiCBN, Ti3SiC2,HfC, HfO2,HfB2,SiC, Ir, and ZrB2. The inner insulating core (130) is comprised of bonded discontinuous carbon fibers, a network of vitreous carbon ligaments, carbon aerogel, or graphite felt or a hybrid combination of these materials.
대표청구항
▼
A lightweight insulating sandwich tile (110) having applications such as spacecraft and reusable launch vehicle thermal protection is disclosed. In one embodiment, the lightweight insulating sandwich tile (110) includes an outer structural facesheet (120) that is bonded or co-cured with an inner ins
A lightweight insulating sandwich tile (110) having applications such as spacecraft and reusable launch vehicle thermal protection is disclosed. In one embodiment, the lightweight insulating sandwich tile (110) includes an outer structural facesheet (120) that is bonded or co-cured with an inner insulating core (130). The outer structural facesheet (120) is comprised of carbon-carbon and includes an oxidation resistant layer (140) on an outer surface thereof. The oxidation resistant layer (140) may comprise a coating or surface treatment of, for example, MoSi2,amorphous SiCN, amorphous SiCBN, Ti3SiC2,HfC, HfO2,HfB2,SiC, Ir, and ZrB2. The inner insulating core (130) is comprised of bonded discontinuous carbon fibers, a network of vitreous carbon ligaments, carbon aerogel, or graphite felt or a hybrid combination of these materials. the end clamps; lifting cables each cable coupled to a respective one of the shackles; and, during lifting, the weight of a tank is transferred to the lifting cables to provide a counterbalancing moment force to counterbalance the weight of the tank directly applied to the forward portions of the parallel plates. 8. The lifting brace of claim 1 further comprising: a rod support block affixed to said crossbar, the rod support assembly comprising: a base affixed to the crossbar; a rod guide supported, by the base, a predetermined distance above said crossbar wherein the rod guide includes a center aperture formed therein having a perimeter which is larger than the circumference of the threaded actuating rod; and buffers coupled to opposing sides of the rod guide. 9. The lifting brace of claim 8, wherein the threaded actuating rod comprising: a coupler; a first threaded rod section having one end coupled to the coupler and the other end coupled to one of the two clamp pivoting assemblies; and, a second threaded rod section having one end coupled to the coupler and the other end coupled to the other of the two clamp pivoting assemblies via the rod support block and wherein the second threaded rod section is threaded in a direction which is opposite the first threaded rod section. 10. A quick connect/disconnect tank lifting brace for use with a tank with a top lid having an overhang comprising: a crossbar having distal ends; pivotal end clamps, each end clamp pivotally coupled to a respective one of the distal ends; a pair of clamp pivoting assemblies, wherein each clamp pivoting assembly pivots a respective one of the pivotal end clamps between an open position and a closed position and biases said respective one of the pivotal end clamps to said open position; and, an actuating rod parallel to the crossbar and coupled to the pair of pivoting assemblies wherein articulation of the actuating rod effectuates, in unison, pivoting of each pair of pivot arms via the pivoting assemblies to a closed position. 11. The lifting brace of claim 10, wherein each clamp pivoting assembly comprises: a first bearing block having the threaded actuating rod threaded therethrough; a sleeve coupled to the first bearing block and having the threaded actuating rod threaded therethrough; a second slidable block having coupled on opposite sides thereof the pair of pivot arms wherein the rotation of the threaded actuating rod in a first direction effectuates a first tracking movement of the first bearing block to push the second slidable block to close the end clamps or in a second direction effectuates a second tracking movement to pull the second slidable block and open the end clamps; and, a pair of spring-biased members coupled to the first bearing block and the slidable block biasing the first bearing block to the second slidable block. 12. The lifting brace of claim 11, wherein the second slidable block is adapted to slide along said sleeve to lock said end clamp once said first bearing block is stationary. 13. The lifting brace of claim 10, wherein the pair of pivot arms are adapted to pivot from an angled position to a substantially vertical position wherein the angle position corresponds to an open position of the end clamps. 14. The lifting brace of claim 10, wherein the end clamps comprises: two end plates fixedly secured in parallel spaced relation via cross pivoting rod pivotally coupled to the crossbar, each end plate comprising: a forward portion of end clamp having formed therein a mouth, a central position affixed to the cross pivoting rod, and a rear portion having hole formed therein for attaching thereto a lifting cable. 15. The lifting brace of claim 14, wherein: the mouth has a generally squared "C"-shaped profile; the central portion includes a protruding arc-shaped edge which defines an arc of rotation of the end clamps for rotating the mouth in and out of the open and closed position
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