# US 2018/0323489 A1 · Truss Reinforced Radome Crown Structure Shock Absorbing And Recoiling Sysytem > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0323489 A1 - Document ID: US20180323489A1 - Status: Published application - Kind: A1 - Application number: 15/479,868 - Filed: 2017-04-05 - Published: 2018-11-08 - Earliest claimed: 2016-04-05 - Inventors: Howard R. Vermillion, JR. - Web page: https://patentgrep.com/patent/US20180323489A1 ## CPC - H01Q 1/005: {Damping of vibrations; Means for reducing wind-induced forces} - B64C 1/08: Geodetic or other open-frame structures - B64C 1/36: adapted to receive antennas or radomes - F16F 1/06: with turns lying in cylindrical surfaces - F42B 10/46: Streamlined nose cones; Windshields; Radomes {(F42B12/105 takes precedence)} - H01Q 1/281: {Nose antennas} - H01Q 1/42: Housings not intimately mechanically associated with radiating elements, e.g. radome - F16F 15/067: using only wound springs - F16F 2232/08: Linear - F16F 2238/026: wound- or coil-like - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - B64C: AEROPLANES; HELICOPTERS - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - F42B: EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION (explosive compositions C06B; fuzes F42C; blasting F42D) ## Abstract A truss reinforced radome crown structure shock absorbing and recoiling system that is utilized with an aircraft antenna adapter plate or other satellite communication (SAT-COM) structure to an aircraft airframe or fuselage and for allowing for pressurized expansion and contraction of the fuselage, or to protect against a bird strike incident or rapid decompression event. There are multiple design configurations of the system, with all configurations utilizing an actuating recoiling strut. In first and second design configurations, the strut is used on an adapter plate or adjacent to attachment lugs. A third design configuration uses a strut with a sliding mechanism. In all configurations after decompression, a bird strike incident or rapid decompression event the system will allow a fuselage to return to an original position. ## Claims ### Claim 1 A truss reinforced radome crown structure shock absorbing and recoiling system for mounting antenna adapter plates or other satellite communication (SAT COM) structures to an aircraft fuselage and allowing for pressurized expansion and contraction of the fuselage, wherein said system is comprised of an actuating recoiling strut including: a) a housing comprising a female receiver with a first end having an opening, a second end having an opening with internal threads, an external surface, an internal channel, and a male cap with a first end having an opening to an internal threaded cavity, a second end with an external threaded section and having an opening to an internal channel, and an external surface, wherein the opening on said female receiver is dimensioned to accept the external threaded section on said male cap, wherein said female receiver and said male cap are maintained together by screwing said male cap's external threaded section into the opening with internal threads on said female receiver's second end, and b) an actuating rod that is located within said housing and comprises a first end having an opening, and a second end, wherein said actuating rod is slideably situated within said housing's internal channels, and said rod's second end terminates at the end of said male cap's internal channel, wherein a length of said rod extends within said male cap's internal channel, a length of said rod is within and extends through the internal channel on said female receiver, and the first end of said rod outward from the opening on said female receiver's first end, wherein within the opening on said rod is a spherical bearing, and surrounding said rod is a compression spring, wherein said spring facilitates the actuating movement of said rod within and extending from said housing. ### Claim 2 (depends on 1) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 1 wherein said housing is made of metal. ### Claim 3 (depends on 2) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 2 wherein the metal is selected from the group consisting of aluminum, stainless steel, spun carbon fiber, or a composite material. ### Claim 4 (depends on 1) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 1 further comprising at least one internal spring adjustment space that allows the length of said compression spring, and the resulting compressive force, to be selectively adjusted. ### Claim 5 (depends on 1) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 1 further comprising an adjustable attachment fitting with a first end having an opening, and a second end with a threaded section, wherein said fitting is attached to said housing by screwing said fitting's second end and threaded section into the internal threaded cavity, wherein the distance said fitting extends outward from said housing is adjusted by the amount said fitting is screwed into or out from the cavity. ### Claim 6 (depends on 5) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 5 wherein said fitting's first end has a spherical bearing within the opening. ### Claim 7 (depends on 6) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 6 wherein the first ends of said actuating rod and said attachment fitting function as attachment members for securing said actuating recoiling strut. ### Claim 8 (depends on 1) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 1 wherein in lieu of spherical bearings, movable or fixed attachment means/mountings are utilized. ### Claim 9 (depends on 1) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 1 wherein one side of a radome or SAT-COM adapter plate is hard mounted by attachment lugs and said actuating recoiling struts secured to an opposite side of the lugs. ### Claim 10 (depends on 1) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 1 wherein multiple actuating recoiling struts are mounted horizontally, vertically or at an angle. ### Claim 11 A truss reinforced radome crown structure shock absorbing and recoiling system that is secured to an aircraft's airframe or fuselage to allow a crown structure, or components of a crown structure, to recoil upon impact, wherein said system comprising at least one actuating recoiling strut with a housing, a male cap, an actuating rod, and a compression spring, wherein a truss structure adapter plate's attachment lugs are mounted to slide mechanisms attached to a base of the adapter plate, with said actuating recoiling strut mounted behind each lug attachment, aft or forward of each attachment, wherein said struts allow the radome crown structure to react and recoil, thereby protecting the structure from a bird strike incident or a rapid decompression event ### Claim 12 (depends on 11) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 11 wherein said actuating recoiling strut is located for pulling forces. ### Claim 13 (depends on 11) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 11 wherein said actuating recoiling strut is located for pushing and pulling forces. ### Claim 14 (depends on 11) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 11 wherein said actuating recoiling strut is located for pushing forces. ### Claim 15 (depends on 11) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 11 wherein said system is secured to movable or sliding components of a truss system, adapter plate, skirt fairing, or radome, or a combination of adapter plate, skirt fairing and radome. ### Claim 16 (depends on 11) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 11 wherein at least one actuating recoiling strut is mounted to a fixed member that secures said strut between an aircraft fuselage and an adapter plate or crown structure. ### Claim 17 A truss reinforced radome crown structure shock absorbing and recoiling system that is secured to an aircraft's airframe or fuselage to allow a crown structure, or components of a crown structure, to recoil upon impact, wherein said system comprises at least one actuating recoiling strut with a housing, a male cap, and actuating rod, and a compression spring, wherein said actuating recoiling strut is attached to a slide mechanism which is mounted at an actuating base plate or at attachment lugs, wherein recoiling action is accomplished by splitting an adapter plate into upper and lower plate sections, and maintaining the two plate sections attached to and parallel with one another through the use of said slide mechanism which al lows only the upper plate section to slide in the directions of forward and aft when an impact occurs, wherein said struts attached to said slide mechanism minimizes the force of the impact shock and allows the upper plate section to only slide or recoil by a preset amount of retention pressure. ### Claim 18 (depends on 17) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 17 wherein the longer the actuating rod and compression spring, the longer the distance of allowed movement. ### Claim 19 (depends on 17) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 17 wherein the larger the retentive force of the spring, the larger the retentive force that is required to cause a crown structure to recoil. ### Claim 20 (depends on 17) The truss reinforced radome crown structure shock absorbing and recoiling system as specified in claim 17 wherein when an adapter plate supports both antennas and a fairing skirt with a radome, said system causes the adapter plate to function as a single unitary shock absorber that enables an entire crown structure to recoil upon impact and then return back to initial position.