Quotables
"Flight by machines heavier than air is unpractical and insignificant, if not utterly impossible."
Simon Newcomb, astronomer ; Said in 1902, less than two years before the first flight at Kitty Hawk
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| Number | Title | Issue Date |
| 4400421 | Four-directional structure for reinforcement The structure comprises four groups of elongated rectilinear elements, with the elements of each group parallel to one another. The elements of three of the groups are mutually orthogonal and the elements of the other group are disposed diagonally to the ... | 08/23/1983 |
| 4392624 | Implanted boundary layer trip A technique for monitoring the ablation symmetry of a reentry vehicle by implanting a boundary layer trip material into the nose-tip surfaces of the re-entry vehicle's nose cone. The implantation material is characterized by a density that is usually grea... | 07/12/1983 |
| 4389504 | Elastomer toughened polyimide adhesives A rubber-toughened addition-type polyimide composition having excellent high temperature bonding characteristics in the fully cured state and improved peel strength and adhesive fracture resistance physical property characteristics is disclosed. The proce... | 06/21/1983 |
| 4358480 | Method of repairing surface damage to porous refractory substrates A method of repairing damage to a porous refractory material coated with a glass coating (16) comprising applying hydrolyzed tetraethyl orthosilicate to the damaged area, curing said tetraethyl orthosilicate, applying to said damaged area a pliable filler... | 11/09/1982 |
| 4344591 | Multiwall thermal protection system Multiwall insulating sandwich panels are provided for thermal protection of hypervelocity vehicles and other enclosures. In one embodiment of the invention the multiwall panels are formed of alternate layers of dimpled and flat metal (titanium alloy) foil... | 08/17/1982 |
| 4340197 | Decoy missile A decoy missile having a high moment of inertia with a corresponding reduction of the natural oscillation frequency for simulating reentry of a ballistic nose cone into the earth's atmosphere. High density ballast material disposed in the forward section ... | 07/20/1982 |
| 4338368 | Attachment system for silica tiles An improved method for markedly increasing the bond strength between a rigid, porous refractory material and a non-rigid substrate by densifying the face of the rigid material opposing the substrate. Densification is accomplished by wetting the refractory... | 07/06/1982 |
| 4290612 | Surface conforming thermal/pressure seal A seal assembly for sealing a variable gap between the surface of a first element and a second element movable relative thereto. A seal may comprise a seal housing attached to the second element for movement therewith and having a sealing surface thereon ... | 09/22/1981 |
| 4252588 | Method for fabricating a reinforced composite An improved method for the fabrication of a reinforced composite. The method includes assembling rigid rods into a geometric structure such that all interstitial voids are interconnected, infiltrating the geometric structure with particles, impregnating t... | 02/24/1981 |
| 4234144 | Base vent assembly for entry space vehicles A base vent assembly for entry space vehicles having an access cover utilized in conjunction with a plurality of spaces and deflector member so as to establish a labyrinth vent adjacent the access opening of the entry vehicle. The labyrinth vent is create... | 11/18/1980 |
| 4201611 | Carbon/carbon composite for re-entry vehicle applications A fine textured, high density, three directional, carbon-carbon fiber composite material with an axially to laterally oriented fiber ratio of 1.5 to 1 or higher and a density of 185 g/cm3 or higher.... | 05/06/1980 |
| 4198454 | Lightweight composite panel A lightweight composite panel for use in constructing a portable or mobile enclosure capable of resisting penetration by small arms projectiles, explosive forces and heat having a multi-layered sandwiched construction. The layers include spaced apart meta... | 04/15/1980 |
| 4193828 | Method of forming carbon composites The ablative response at predetermined locations in a carbon-carbon reinforced composite material are selectively modified by one or more implants of a compatible, non-carbon material disposed at selected sites in the material. The implants of non-carbon ... | 03/18/1980 |
| 4185558 | Re-entry vehicle boundary layer transition suppressor Boundary layer transition is delayed on a re-entry vehicle by making use of the differential pressure that normally exists between the surface of a re-entry vehicle and the base region of the vehicle. Choked flow orifices are provided on the surface of th... | 01/29/1980 |
| 4173187 | Multipurpose protection system Slip cast, fused silica shields such as radomes and antenna windows with ir pores filled with graded-Z radiation absorbing particles, give protection against radiation damage, improve the ablation characteristics and do not impair the microwave propertie... | 11/06/1979 |
| 4164339 | Environmental protection system Sheets of metal foil superalloy heat-resisting metal foil, aluminized mylar or other thermal insulators are superposed one upon the other and deployed over the surface to be protected. A "dead space" thermal insulation such as a vacuum or simply a high re... | 08/14/1979 |
| 4151800 | Thermal insulation protection means A system for providing thermal insulation for portions of a spacecraft which do not exceed 900° F. (756° K.) during ascent or reentry relative to the earth's atmosphere. The thermal insulation is formed of relatively large flexible sheets of needled Nom... | 05/01/1979 |
| 4133376 | Advanced cryogenic multi-staged radiator system A passive cooling device especially suitable for application where unattended high performance is required for long periods, such as with space satellite sensors, optics and electronic systems, contains multiple stages of heat radiators insulated from eac... | 01/09/1979 |
| 4131708 | Selectively modified carbon-carbon composites The ablative response at predetermined locations in a carbon-carbon reinforced composite material are selectively modified by one or more implants of a compatible, non-carbon material disposed at selected sites in the material. The implants of non-carbon ... | 12/26/1978 |
| 4124732 | Thermal insulation attaching means An improved isolation system is provided for attaching ceramic tiles of insulating material to the surface of a structure sought to be protected against extreme temperatures of the nature expected to be encountered by the space shuttle orbiter. This syste... | 11/07/1978 |
| 4114369 | Cook-off coating A flexible composite sheet coating for providing cook-off protection time r rocket motors, etc., comprising intumescent material in liquid form including mica flakes sprayed in sequence onto aluminum foil and glass cloth and bonded to the wall of a rocket... | 09/19/1978 |
| 4109202 | Traffic switching in communications satellites A channel switching system useful in a satellite for amplifying some or all of three different RF frequency-band channel signals in two traveling wave tube amplifiers and transmitting the signals via two spot antennas to two regions on earth. Two signals ... | 08/22/1978 |
| 4073985 | Composite dome A dome for protecting energy responsive instrumentation in a missile is disclosed which utilizes a plurality of wedge shaped transparent elements mounted in a polymer matrix. The transparent elements are arranged so that aerodynamic pressure acting on the... | 02/14/1978 |
| 4041872 | Wrapper, structural shielding device A shield for shielding against radiation from a nuclear blast. The shield comprised of an aluminum body structure, a tin sheet bonded to the outer surface of the aluminum body structure, a glass filament reinforced epoxy resin matrix composite plastic ma... | 08/16/1977 |
| 4016322 | Ablative protective material for reentry bodies An ablative material for use with reentry vehicles and characterized by having a low plasma electron density. The material is a laminated composite composed of about 15.6 percent by weight carbon, 3.4 percent by weight phenolic resin, and 81 percent by we... | 04/05/1977 |
| 4014485 | Gas cooling system for hypersonic vehicle nosetip A cooled nosetip arrangement for a vehicle designed to travel at hypersonic velocities is taught herein. We provide a nosetip having one or more orifices at its forwardmost location, but instead of utilizing an arrangement for expelling a liquid coolant, ... | 03/29/1977 |
| 3997899 | Low radar cross-section re-entry vehicle 1. A low radar cross-section re-entry vehicle comprising: a tubular metallic cannister enclosing all instrumentation and payload for said vehicle, said cannister having a diameter of approximately 10 inches and an overall length of approximately 65 inches... | 12/14/1976 |
| 3970006 | Protective cover for a missile nose cone A missile nose cone removable protective cover having a rigid outer shell of cross-linked polyethylene with a semirigid backing of polyurethane foam. A shaped linear charge is positioned in a serpentine pattern between the rigid outer shell and the foam b... | 07/20/1976 |
| 3960626 | Method of making high performance ablative tape A high temperature tape for use in protecting a structural item to be subjected to high temperature, and the method whereby this novel tape is made are set forth. The tape is principally constituted by a number of elongated carrier fibers disposed in an e... | 06/01/1976 |
