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| Number | Title | Issue Date |
| 5586401 | Art work display apparatus A display apparatus for displaying a phonograph album cover or the like is described which is composed of a front and a rear cover plate, both of transparent material for supporting the album cover therebetween. The cover plates are attached to each other... | 12/24/1996 |
| 5255697 | Walking support apparatus A walking support device is provided which allows the user to be placed in the device without lifting and is fully adjustable to provide partial or full sitting support for the user. Additionally, the device may be partially dissembled by hand and be fold... | 10/26/1993 |
| 5207082 | Key holding device A key holder in which a key may be fastened, includes an elongated handle for providing the user with a mechanical advantage in operating key locks. The key is retained in the holder by means of a pin inserted in the key ring hole in the bow of the key. T... | 05/04/1993 |
| 4373169 | Multi-window visual display system for flight simulators A wide-angle image generator of the closed-circuit television type primarily for a helicopter flight simulator, employs four vidicons, each receiving a portion of an image from a single optical system viewing a wall mounted terrain model. The optical syst... | 02/08/1983 |
| 4358074 | Propulsion system for V/STOL aircraft A propulsion system for an aircraft having a fuselage and a wing with two nacelles disposed on opposite sides of the fuselage, each of the nacelles having a turbo fan therein with drive means connected thereto for air flow through the nacelle from a forwa... | 11/09/1982 |
| 4349317 | Bearingless rotor for single and tandem helicopters A bearingless rotor system has a flexible strap member to which the root of a rotor blade is attached, and a pitch rod aligned with the pitch axis and mounted to the rotor blade root and to a pitch arm, which arm transmits control system variations by way... | 09/14/1982 |
| 4349167 | Crash load attenuating passenger seat A light-weight aircraft passenger seat, which includes a plurality of integrally mounted wire-bending energy attenuators, and which can be floor mounted to face either forward or backward. Four seat legs, pivotally connected between the seat and floor, ex... | 09/14/1982 |
| 4338050 | Method and tool for generating holes in composite materials A method and tool for drilling holes in a composite of materials having different strength and elastic characteristics. The tool has a planar end surface inclined in two directions relative to the tool axes, and an axially-extending flute which define, wi... | 07/06/1982 |
| 4335174 | Honeycomb structure end closure An end closure for honeycomb structures is disclosed. The end closure effectively provides for the sealing of the end of a honeycomb structure in order to prevent moisture from entering and propagating into the structure. The invention includes a structur... | 06/15/1982 |
| 4333551 | Load limiter A load limiter or a crash attenuation device based on wire bending principals is disclosed. Excessive tensile shocks, such as the accelerative forces imposed on a low stretch load restraint in a helicopter if it crashes, are absorbed by forcing a bifurcat... | 06/08/1982 |
| 4332248 | Medical apparatus An apparatus or guide to aid in inserting the needle of syringes and the like into body conduits such as veins, is disclosed. The apparatus includes a pair of members which are placed on the opposite sides of a vein, parallel to the longitudinal axis ther... | 06/01/1982 |
| 4329119 | Rotor blade internal damper A load absorbing elastic member or members is incorporated in the design of a rotor blade to assist in reducing flapwise and chordwise bending moments, torsional loading, and to reduce or eliminate the control system loads induced by rotor blade moment st... | 05/11/1982 |
| 4316701 | Composite aerodynamic rotor blade assembly What follows is a description of a composite aerodynamic rotor blade assembly which has been optimized from the standpoint of both fabrication cost and structural integrity. The rotor blade is fabricated using fewer overall assemblies to optimize cost and... | 02/23/1982 |
| 4314795 | Advanced airfoils for helicopter rotor application A family of airfoils for use in rotary wing aircraft, particularly helicopters, is disclosed. The family is characterized by having a maximum c1.sbsb.max at M=0.4 and maximum delay in drag divergence while maintaining zero lift pitching moment ... | 02/09/1982 |
| 4312398 | Method of forming fiber and metal composite structures A method of forming ceramic fiber and metal composite structures is disclosed. The method is particularly useful in forming such structures having a complex shape. Fibers are coated with an investment grade sticky wax as a fugitive organic binder. Alumini... | 01/26/1982 |
| 4311213 | Vibration isolation system A vibration isolation system for a passenger carrying helicopter with which the crew seats in the cockpit area and the floor in the passenger area are decoupled from the airframe thereby isolating the seats and floor from the airframe vibrations. In addit... | 01/19/1982 |
| 4302154 | Integrated transmission and rotor head An integrated transmission and helicopter rotor head is disclosed. Lift and bending moments generated by the rotating hub are carried by non-rotating support structure. The rotating rotor shaft is adapted to carry only torque loads. Partial gear reduction... | 11/24/1981 |
| 4300738 | Duct support structure A support structure for thin wall, lightweight, ducts which are commonly used in aircraft is disclosed. The support structure, a clamp, has a split, circular body with a tapered separation. A support bracket is connected to the body of the clamp which per... | 11/17/1981 |
| 4289288 | Wire routing apparatus A split ring grommet for use in routing electrical cables, and the like, through aircraft bulkheads is disclosed. The grommet has a flange which is formed at one end thereof and tabs on its outer surface. The grommet is designed so that when it is inserte... | 09/15/1981 |
| 4264277 | Redundant rotor blade retention system A redundant rotor blade retention system is disclosed. A secondary load path is provided in the event the primary load path of the rotor blade retention system fails. Both the primary and the secondary load path permit rotation of the rotor blade about it... | 04/28/1981 |
| 4259144 | Bi-directional tape applicator head and method The invention relates to a tape applicator head for dispensing tape onto a working surface for the construction of primarily structural parts, and to a method of laying tape onto a working surface. The tape applicator head includes a housing which is preferabl... | 03/31/1981 |
| 4247255 | Composite rotor blade root end A helicopeter rotor blade fabricated from laminated fiber-reinforced resin includes a blade root end attachment to the rotor hub that provides a structural extension capable of developing chordwise bending moment continuity across a single-pin joint. The ... | 01/27/1981 |
| 4242048 | Semi-articulated flexstrap A semi-articulated flexstrap for use in connecting a rotor blade to the hub of a helicopter rotor is disclosed. The flexstrap includes a series of straps which alternatingly crisscross at a point between the blade and hub. The straps are substantially par... | 12/30/1980 |
| 4234374 | Bi-directional step-over tape applicator head The invention relates to a tape applicator head for dispensing tape onto a working surface in the construction of primarily structural parts. The tape applicator head includes a slidably mounted cylinder to which a rotation rack assembly is mounted. The r... | 11/18/1980 |
| 4215587 | Folding mechanism What follows is a description of a mechanism for displacing structurally related component parts of a larger assembly of parts relative to each other. The component parts are typically locked together into the larger assembly and the mechanism is designed... | 08/05/1980 |
| 4212491 | Resilient flanged wheel A resilient wheel is provided comprising a hub and web having a rim mated to and resiliently bonded to the web with an elastomeric adhesive. Depending on the application the outer circumference of the rim may have a flange machined into it so that it serv... | 07/15/1980 |
| 4188171 | Rotor blade internal damper A load absorbing elastic member or members is incorporated in the design of a rotor blade to assist in reducing flapwise and chordwise bending moments, torsional loading, and to reduce or eliminate the control system loads induced by rotor blade moment st... | 02/12/1980 |
| 4181024 | Helicopter rotor system related vibration amplitude detecting system What follows is a description of a system for detecting rotor system related vibration in a helicopter. The vibration detecting system comprises three essential units: a sensing unit or device; a control unit; and a model module. Actually, any number of s... | 01/01/1980 |
| 4146967 | Rotor blade inspection fixture An apparatus for measuring the contour of rotor blades is provided. The apparatus or fixture of the present invention will measure airfoil shape and twist at any spanwise station along a rotor blade as well as measuring the chordwise and flapwise bow of t... | 04/03/1979 |
| 4142327 | Track mechanism assembly for a light rail vehicle What follows is a description of a three track mechanism assembly for a vehicle door, and in particular for a light rail vehicle door. Each track mechanism includes a guide rail for guiding the door in its opening and closing movement relative to the vehi... | 03/06/1979 |
| 4129275 | Automatic flight control apparatus for aircraft An automatic flight control apparatus for aircraft having the desired attitude of the aircraft in a balanced relation to the action speed of the aircraft and utilizing this reference signal to generate a difference signal which corresponds to the differen... | 12/12/1978 |
| 4126212 | Crash load attenuating valve for an aircraft landing gear shock strut In a shock strut for an aircraft landing gear having inner and outer elongated telescoping tubes and a primary orifice selected and designed to attenuate the load level to a certain design condition which is compatible with the aircraft's structural thres... | 11/21/1978 |
| 4125029 | Wheeled vehicle moving apparatus An apparatus for moving a wheeled vehicle which can be positioned, controlled and operated by a single individual. The apparatus operates on one wheel of the wheeled vehicle and moves the vehicle by rotating the one wheel. The apparatus includes a drive w... | 11/14/1978 |
| 4114754 | Container integrated work stand What follows is a description of a container and integrated work stand combination. Included are a body portion forming an enclosure which supports a component to be shipped and a lid portion which complements the body portion during shipping and also ser... | 09/19/1978 |
| 4096012 | Method of forming a spar layup for an aerodynamic rotor blade A simplified layup mandrel with no contour or twist is utilized by the method of this invention for forming the spar member of an aerodynamic rotor blade. A fiber glass tape is wrapped (laid-up) to a desired thickness onto the simplified mandrel to form a... | 06/20/1978 |
| 4095322 | Method of fabricating a composite aerodynamic rotorblade assembly What follows is a description of a method of fabricating a composite assembly. In particular, the composite assembly comprises an aerodynamic rotor blade assembly which is fabricated utilizing a single matched die mold. Before utilizing the single matched... | 06/20/1978 |
| 4010613 | Turbocharged engine after cooling system and method Turbocharged engine air supply cooling arrangement and method that utilizes an air-to-air heat exchanger provided with a fan to circulate ambient air about the heat exchanger to cool turbocharger compressor discharge air. The air is cooled to near, but ab... | 03/08/1977 |
| 3963363 | Traffic control device A pop up traffic control device stored in a cavity in the roadway when not in use and elevated to a predetermined height above the roadway by remote control when traffic control is required. The control device is attached to a follower which is engaged in... | 06/15/1976 |
| 3958412 | Fluidic gas turbine fuel control A pure fluidic fuel control system for a gas turbine engine in which engine speed and compressor discharge pressure are sensed and utilized to control the flow of fuel to the engine. In the system an analog fluid signal proportional to engine speed is app... | 05/25/1976 |
| 3941104 | Multiple turbocharger apparatus and system A multiple turbosupercharger system for an internal combustion engine routes the air from ambient, or combustible gas mixture from downstream of the carburetor, serially through a low-pressure compressor, a high-pressure compressor, the engine's intake an... | 03/02/1976 |
