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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 6402093 | Method and apparatus for autonomous de-icing A dielectric coating is applied to a surface that is prone to icing. Ice detecting sensors are deployed over the surface that is in danger of excessive icing. When sensors detect the presence of ice, a charge opposite that of the ice coating is automatica... | 06/11/2002 |
| 6240333 | Method and system for fabrication of composite parts A method and system for fabrication of composite parts with tools determines a layout pattern within an autoclave based upon the heating variance of the autoclave and the thermal performance of each selected tool. The layout pattern can provide for produc... | 05/29/2001 |
| 6122060 | Method and apparatus for detecting ultrasonic surface displacements using post-collection optical amplification The present invention detects ultrasonic displacements includes a detection laser to generate a first pulsed laser beam to detect the ultrasonic surface displacements on a surface of the target. Collection optics to collect phase modulated light from the ... | 09/19/2000 |
| 6112512 | Method and apparatus of pulsed injection for improved nozzle flow control An apparatus and method for varying the effective cross sectional area of an opening through a nozzle provides a controller 78 that pulses a fluidic cross flow through an injector associated with the nozzle 68 proximate to the opening of the nozzle. The c... | 09/05/2000 |
| 6112513 | Method and apparatus of asymmetric injection at the subsonic portion of a nozzle flow An apparatus and method for varying the effective cross sectional area of an opening through a fixed geometry nozzle provides a fluidic cross flow with an injector incorporated in the throat of the nozzle 68 proximate to the subsonic portion of the flow t... | 09/05/2000 |
| 6094447 | System and method for reducing wavefront distortion in high-gain diode-pumped laser media A system and method for reducing wavefront distortion in high-gain diode-pumped laser media by providing a non-uniform current profile to be delivered to a pumping array comprised of laser diodes distributed on a laser medium. A signal processor provides ... | 07/25/2000 |
| 5982180 | Metal detection system and process using a high voltage to produce a visible electrical discharge The apparatus includes an electrical circuit for producing a high voltage at a high frequency with very little current and an elongated and electrically insulated electrical conductive member coupled to the circuit for producing an electrical discharge wh... | 11/09/1999 |
| 5929732 | Apparatus and method for amplifying a magnetic beam An apparatus and method for creating a magnetic beam wherein a focusing magnet assembly (45) is comprised of a first opposing magnet pair (20) and a second opposing magnet pair (30) disposed in a focusing plane, each magnet of the respective opposing magn... | 07/27/1999 |
| 5852237 | Apparatus and method for measuring the side slip of a low observable aircraft An apparatus and method for measuring airflow past an aircraft by extending a probe (14) from the aircraft into the airflow with a retraction-extension mechanism (20) when a measurement is desired, and retracting the probe (14) when a measurement is not d... | 12/22/1998 |
| 5836729 | Integrated frame and method of manufacture A unitary frame structure is disclosed as well as a method of manufacturing the same. The unitary frame structure typically includes a first beam, a second beam adjoining the first rib, and a cross member adjoining the first rib and the second beam. Signi... | 11/17/1998 |
| 5836549 | Airfoil leading edge with cavity A jet airplane capable of supersonic flight has airfoils with leading edges. Each leading edge has a cavity which extends for substantially the entire length of the airfoil. The leading edge also has a cover which is approximately the same size as the cav... | 11/17/1998 |
| 5795094 | Composite metallic tension fitting A composite structural member having an improved joint for securing loads thereto is formed from a body of composite sheet material. A loading member having an outer periphery and being configured to secure loads thereto is provided with an undercut porti... | 08/18/1998 |
| 5779189 | System and method for diverting boundary layer air A diverterless engine inlet system that integrates a "bump" surface with a forward swept, aft-closing cowl to divert substantially all of the boundary layer air from the inlet. The bump includes an isentropic compression surface raised outwardly from the ... | 07/14/1998 |
| 5749542 | Transition shoulder system and method for diverting boundary layer air A diverterless engine inlet system that integrates a transition shoulder into a system for diverting air from the inlet of an aircraft engine. ????? The bump includes an isentropic compression surface raised outwardly from the body of the aircraft to form... | 05/12/1998 |
| 5738925 | Ballistic armor having a flexible load distribution system A flexible protective armor is provided with a very hard microstructure and a flexible macrostructure for flexurally deforming along smooth curves when impacted by a ballistic projectile, and then rebounding after the impact. The flexible protective armor... | 04/14/1998 |
| 5730540 | Hole filling receptacle assembly A fastener assembly having a receptacle attached to the underside of a first panel aligned with a first hole adapted to receive therein a threaded bolt extending through a second hole in a second panel. The holes are aligned and a spring-biased expandable... | 03/24/1998 |
| 5717397 | Low observable shape conversion for aircraft weaponry An apparatus for encapsulating a warhead or bomb for the purpose of reducing the weapon's radar cross-section, including a hollow jacket and a hollow tail section. The warhead is inserted into the specially-shaped jacket and into at least part of the tail... | 02/10/1998 |
| 5704749 | Panel aligning fastening system A fastener assembly having a receptacle attached to the underside of a substructure and extending through a hole within the substructure which are both generally aligned with a panel with a hole adapted to receive a threaded bolt. The hole in the panel ha... | 01/06/1998 |
| 5680135 | Radiation communication system An aircraft has an exhaust flame or plume which can be modulated to communicate. A sound emitter is mounted to the aircraft for emitting acoustic waves into the exhaust plume. An encoder will control the emitter at selected digital sequence to provide a d... | 10/21/1997 |
| 5615548 | Dual rotor pulse detonation apparatus A pulse detonator particularly for an aircraft power supply has a tubular housing. A valve sleeve rotates within the bore of the housing. The valve sleeve and housing have ports which align with each other at least once per revolution. A manifold is mount... | 04/01/1997 |
| 5590014 | Method and apparatus for supplying electric power A method and apparatus are provided for supplying electric power in the form of an output d.c. voltage. An electret material emits the output d.c. voltage in response to continuously applying a high potential static field across the electret material. In ... | 12/31/1996 |
| 5579633 | Annular pulse detonation apparatus and method A pulse detonation apparatus utilizes a rotatable core feed cylinder. The core feed cylinder is carried within a inner sidewall of a stationary annular detonation chamber. The core feed cylinder has ports in the sidewall that will register with ports in t... | 12/03/1996 |
| 5543917 | Object detector A method for detecting objects while eliminating unwanted background utilizes polarizing contrasts. A lens systems focuses light from the field of view through a beam splitter. One beam passes to a digitizer through a polarizer which polarizes the beam at... | 08/06/1996 |
