Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 4865162 | Electrically actuated aircraft brakes This invention provides a roller screw drive mechanism (60) driven by an electric torque motor (50) through a gear drive (58,58',58") associated with either the screw (64,94) or nut (62,92) member of the roller screw drive mechanism. Rotation of the gear ... | 09/12/1989 |
| 4727373 | Method and system for orbiting stereo imaging radar This radar system makes it possible to collect complete stereo data in a single pass by utilizing an orbiting, side looking, bi-static, synthetic aperture radar. This system utilizes at least two orbiting spacecraft in synchronous parallel orbits with eac... | 02/23/1988 |
| 4696376 | Configuration for a disk brake torque tube A torque tube (50) having a cylindrical body (50a) is characterized by a plurality of key surfaces (50k) which extend radially from the surface (50s) and extend longitudinally from an inboard end (50i) to terminate at an outboard end (50o) in a radius (R3... | 09/29/1987 |
| 4667781 | Electric brake heater This invention provides for heating a brake assembly electrically to prevent it from freezing. More specifically this invention provides for heating electrically an aircraft multi-disk brake assembly. An electric resistance heating element 12 is adapted to for... | 05/26/1987 |
| 4628953 | Fusible plug safety device for venting aircraft tires A fusible thermally responsive device (20) for mounting in a bore (12) provided for it in a wheel (10) to vent an overpressure condition caused by heat generated in an aircraft wheel and brake assembly comprises a rod-shaped length of a thermally activate... | 12/16/1986 |
| 4566237 | Armored panel An armored panel construction for a shelter to defeat ballistic fragment and thermal radiation threats comprises an inner structural panel of aluminum alloy sheets bonded to a honeycomb core and an outer face panel of an aramid fiber fabric in a multi-ply... | 01/28/1986 |
| 4557356 | Brake disk and keyslot reinforcements therefor A friction brake disk is formed having a plurality of T-shaped slots extending through a peripheral edge thereof from one braking face surface to the other and each slot carries a keyslot reinforcement comprised of a metallic insert member having the same... | 12/10/1985 |
| 4449616 | Non-reversible brake adjuster A brake adjuster, including a pin interconnecting a brake pressure plate at one end and a metal swage at the opposite end and oriented within a deformable tube such as to radially deform the tube to the shape of the swage as the swage moves into the tube ... | 05/22/1984 |
| 4434021 | Reverse building process for the manufacture of complex-shaped vehicle fuel tanks A manufacturing process for reverse building complex-shaped vehicle fuel tanks using complementary female mold halves which, when joined together about their mating peripheral edges, exactly duplicate the vehicle body cavity into which the completed tanks... | 02/28/1984 |
| 4412603 | Dual pressure, dual piston actuator A hydraulic actuator comprises a first piston mounted within a primary bore and moved in response to a low pressure force while a second piston is mounted in an axially aligned secondary bore and is moved in response to a high pressure force. The second p... | 11/01/1983 |
| 4412052 | Moisture permeation resistant resins from epoxy resins, polymercaptans, and aminosilanes A high heat resistant transparency of epoxy resins cured with adducts of trimethoxyboroxine and benzyl alcohol is disclosed to resist intense heat for these transparencies in their use on military and industrial hardware. This transparency may exist in a ... | 10/25/1983 |
| 4412046 | Transparencies produced from epoxy resins cured with adducts of trimethoxyboroxine and benzyl alcohol and interlayers of mercaptan resins A high heat resistant transparency of epoxy resins cured with adducts of trimethoxyboroxine and benzyl alcohol is disclosed to resist intense heat for these transparencies in their use on military and industrial hardware. This transparency may exist in a ... | 10/25/1983 |
| 4383594 | Configuration for a disk brake torque tube assembly having replaceable keys and backplate A unique configuration for a torque tube assembly associated with a disk type brake comprises separable and replaceable keys and a separable and replaceable brake disk backplate. The keys are mounted in anti-rotation slots at the inboard and outboard ends... | 05/17/1983 |
| 4372533 | Pneumatic lift pad A pneumatic pad comprises reinforcement fabrics of parallel cords pre-formed to a specific radius through the edges of the pad and press-molded to a very flat pre-pressurized configuration. At least two orthogonally oriented reinforcement fabrics are embe... | 02/08/1983 |
| 4360124 | Fabric-reinforced, flexible-walled container and method of making said container A flexible, fabric-reinforced, complex-shaped container comprises a fabric reinforcement material and at least one facing layer of a polymeric or elastomeric material, said fabric comprised of yarns capable of changing their effective lengths upon being s... | 11/23/1982 |
| 4350231 | Friction wear pad and method and means for fastening said pad to a disk core member A friction pad configuration and a method and apparatus for fastening said pads to a disk core member wherein the base of the pad is formed with a plurality of extended tabs that are inserted in slots in the core and secured to the tabs of a pad on the op... | 09/21/1982 |
| 4322462 | Seal splice A splicing unit for integrally joining ends of seal strip material to form a continuous annular seal ring comprises two reinforced elastomeric ply strips with an unreinforced elastomeric gum interposed between them to form an H-section configuration, the ... | 03/30/1982 |
| 4257837 | Seal splice A splicing unit for integrally joining ends of seal strip material to form a continuous annular seal ring comprises two reinforced elastomeric ply strips with an unreinforced elastomeric gum interposed between them to form an H-section configuration, the ... | 03/24/1981 |
| 4076106 | Snap fasteners for brake disk wear plates Brake disk wear pad plates have various different types of snap fasteners so that adjacent wear pads may be releasably joined together. Desirably, the brake pad plates are located on opposite sides of a brake disk core and thus are held together by the fa... | 02/28/1978 |
| 4052717 | Battery condition monitoring method and apparatus A battery condition monitoring device which senses battery terminal voltage and creates a function thereof and tests that function against predetermined criteria and determines battery condition as a result of such tests. Furthermore, the invention operat... | 10/04/1977 |
| 4042003 | Tire bead retainer A tire bead retainer for mounting on a wheel rim in which a locking member is located adjacent a bead seat of the rim. The locking member is depressed by the beads during mounting of the tire on the rim and is moved back into the locking position for reta... | 08/16/1977 |
| 4015652 | Tire and rim assembly A tire and rim assembly for retaining a deflated tire on a rim in which a pair of bead portions are mounted in bead seats at the edges of the rim. At least one of the bead portions is adhered to the rim at one of the bead seats with a cement having suffic... | 04/05/1977 |
| 4007814 | Carbon brake disk with cast keyslot reinforcement members An annular carbon brake disk having cast metal keyslot reinforcement members which are shaped to intimately conform to the contour of the keyslots and to an adjacent surface area of the disk on each side of the keyslots. The reinforcement members are pref... | 02/15/1977 |
| 4003607 | Failure warning and shut-off for anti-skid system An improvement is provided for use in a wheeled vehicle having anti-skid circuitry associated with the wheels thereof. Fundamentally, the invention comprises a comparator connected to the anti-skid circuitry which products an output signal when anti-skid ... | 01/18/1977 |
| 4000791 | Disk brake for reinforced drive key member A disk brake having a cylindrical drive member extending axially from one side flange of a wheel. The cylindrical drive member has axially extending keyslots which engage radially outwardly extending ears or keys on rotatable brake disks and cause the dis... | 01/04/1977 |
| 3990492 | Fluid dispensing apparatus for tire wheel assembly Fluid dispensing apparatus for a tire wheel assembly having a wheel supported ring member with a diameter greater than the wheel rim diameter and less than the tire tread diameter. A fluid chamber is provided radially inward of the ring and an opening in ... | 11/09/1976 |
| 3990491 | Safety support device and rim for pneumatic tires A safety or emergency insert device positioned on a wheel rim inside a tire chamber to support the tire in a deflated condition. The device has an annular ring member of substantially C-shaped cross section which member has a rim-engaging portion, an axia... | 11/09/1976 |
| 3988089 | Apparatus for manufacturing curved bodies of fiber reinforced plastic Manufacturing a curved fiber reinforced body of plastic material by cutting plastic impregnated fibers with a cutter, directing the cut fibers onto a rotating form and applying a plastic material to the fibers. The fibers are deposited in predetermined ra... | 10/26/1976 |
| 3986118 | Simplified wheel speed transducer A wheel speed transducer for sensing the rotational speed of a wheel about an axle which fundamentally includes a housing fixed to the axle and containing therein two permanent magnets. The magnets are arranged such that an elongated pole piece commonly a... | 10/12/1976 |
| 3981341 | Safety support for pneumatic tires A safety support for mounting on a rim inside a tire chamber to support the shoulder areas of the tire in a deflated condition. The support has a pair of spaced-apart rings with a diameter less than the diameter of the tread portion of the tire in the inf... | 09/21/1976 |
| 3970174 | Low wear disk brake assembly A low wear disk brake assembly has a rotatable body and a fixed axle rotatably supporting the body. A stack of disks having splined portions are aligned alternatingly relative to the axle in the body with each disk characterized by being made from graphit... | 07/20/1976 |
| 3956548 | Duo material carbon composite brake disk The invention resides in a carbonaceous aircraft brake disk having a reuseable lightweight carbon composite center core to which can be bonded lightweight composite wearing materials to each side. The wearing surface is particularly designed for wear load... | 05/11/1976 |
| 3952395 | Method of closing the end of a drilled passage The invention is designed to produce a more economical means of closing drilled passage holes in hydraulic and/or pneumatic systems either during manufacture and/or repair. The process involves pressing a ball, or diametral portion thereof, with a diametr... | 04/27/1976 |
| 3937526 | Single valve braking system having anti-skid control An anti-skid and brake control system for use on an aircraft wherein the output signals from standard anti-skid circuitry are combined with the signals from a brake pedal transducer to create braking signals. The braking signals are applied to current con... | 02/10/1976 |
