Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7765863 | Phosphorescent wind indicator A wind gauge includes particles dispensed from their container as a floating cloud which is carried along by ambient wind and thus illustrates wind speed and direction. The particulate media may also include a mixture of phosphorescent and chalk particles, so that t... | 08/03/2010 |
| 7302170 | Heating device for smoke generator A heating device for a smoke generator includes at least one heating rod and a vaporization tube. The vaporization tube includes a longitudinal passageway. The vaporization tube coils around the heating rod and includes an end connected to an outlet of a pump of a s... | 11/27/2007 |
| 7290445 | Smoke generating device A cold smoke generating device includes an air source that may include a hollow flexible collapsible container having an expandable and compressible cavity for accepting air and air-borne reagent therein. The collapsible container is fluidly connected with a narrow ... | 11/06/2007 |
| 7155968 | Multifunction probe with variable flexure The invention relates to a multifunction probe for aircraft. The probe has a mobile vane intended to align with the axis of an air flow around the probe. The mobile vane comprises first pressure pickup means for measuring the total pressure of the flow and second pr... | 01/02/2007 |
| 7150560 | Device and method for determining total temperature for aircraft The invention relates to a device for determining total temperature for aircraft. This device is particularly useful in a probe, called a multifunction probe, for measuring several aerodynamic parameters such as, for example, the total pressure (Pt), the static pres... | 12/19/2006 |
| 6848302 | Air current detection aid A pouch-like receptacle for housing and dispensing a fibrous, windborne material useful in detecting air currents, air movement or wind speed and direction is disclosed. The receptacle includes at least one aperture or opening for accessing and dispensing said fibro... | 02/01/2005 |
| 6679112 | Total pressure determination with multifunction probe for aircraft A multifunction probe for aircraft to determine in particular the static pressure and the total pressure of an airflow located in the vicinity of the aircraft and the angle of incidence of the aircraft with respect to the airflow. The probe includes a mov... | 01/20/2004 |
| 6550418 | Wind detection aid A refillable receptacle for housing and dispensing a fibrous, windborne material is disclosed. The receptacle includes a closure cap having one or more apertures for dispensing said fibrous material and has a threaded bottom for attachment to, and replace... | 04/22/2003 |
| 6532801 | Portable apparatus and method for tracing a gas leak A method and apparatus for identifying the location of a gas leak source. The apparatus includes a gas detector for detecting the presence of gas and a wind direction indicator. The method traces a gas leak source location using the apparatus including th... | 03/18/2003 |
| 5457989 | Air flow surveying apparatus and method A method for measuring a direction of a laminar air flow uses a particle stream tracing an air flow and having a grain size substantially uniform along the particle stream. The direction of the particle stream is detected by a first and a second rectangul... | 10/17/1995 |
| 5454265 | Installation for the measurement of the altitude of a surface wind, particularly for improving the hitting accuracy of unguided projectiles An installation for the measurement of the wind direction and the wind velocity of a ground wind dependent upon the altitude above the ground. More particularly, the installation is employed for improving the hitting accuracy of unguided projectiles or ro... | 10/03/1995 |
| 5023055 | Flow tester The invention is directed to a flow tester for air wherein at least two different materials are accommodated in at least two supply chambers. A visible aerosol is formed when the materials are mixed. The flow tester is improved with respect to an optimal ... | 06/11/1991 |
| 5007285 | Low cost drifter A low-cost floating drifter adapted to accurately follow near-surface ocean currents and transmit periodically to monitoring satellites data and position-determining information. Global tracking of ocean currents is made economically and scientifically fe... | 04/16/1991 |
| 4963019 | Groundwater azimuth detection An apparatus detects the azimuth of the migration of groundwater containing suspended microscopic particles. The apparatus comprises a probe consisting of a light source which emits light in a vertical orientation and a photodigitizer which faces the ligh... | 10/16/1990 |
| 4744919 | Method of dispersing particulate aerosol tracer A particulate aerosol tracer which comprises a particulate carrier of sheet silicate composition having a particle size up to one micron, and a cationic dopant chemically absorbed in solid solution in the carrier. The carrier is preferably selected from t... | 05/17/1988 |
| 4680962 | Fluid flow rate and direction measuring apparatus A fluid flow measuring device which does not disturb the fluid flow, in one embodiment is responsive to flow in each of three orthogonal directions. A central electrode carrying ionizing needle electrodes is combined with a concentric and coaxial open ion... | 07/21/1987 |
| 4554827 | Wind indicators A device for indicating windspeed and direction to a parachutist and comprising a datum element for plummetting to the ground, a status element having a parachute for floating to the ground, a cord linking the two elements, and different markers on each e... | 11/26/1985 |
| 4545243 | Nonrotating current meter housing A current meter for measuring the velocity and direction of the water current comprising a housing, a support cable rigidly secured to the housing and appendages rotatably mounted at opposed ends of the housing and formed of a neutrally buoyant material. ... | 10/08/1985 |
| 4471654 | Fluid flow measuring apparatus A fluid movement measuring apparatus having ion collecting electrical conductors spaced from an ion generating source located within a housing. The housing has one or more circumferential rows of openings in communication with the space or fluid flow path... | 09/18/1984 |
| 4423626 | Method of determining wind direction for hunters A method for avoiding detection by game animals by scent through establishing wind direction to insure that the hunter is positioned downwind from the animal. In the method, a small quantity of a hydrophobic material such as unscented raw talc powder, whi... | 01/03/1984 |
| 4408488 | Generalized drifting oceanographic sensor A generalized drifting oceanographic sensor (GDOS) is cast adrift in the oceanographic environment along a pre-programmed depth schedule. A variable buoyancy housing has one or more external oceanographic sensors and an external acoustic telemetry transdu... | 10/11/1983 |
| 4311045 | Device for measuring sea currents at great depths A device for measuring sea currents at great depths as a function of the depth. A spherical shaped plunger having negative floatability is dropped from a boat and descends to the bottom of the sea, releases its ballast and rises to the surface where it is... | 01/19/1982 |
| 4308749 | Device for measuring in real time sea currents in deep water A device for measuring in real time sea currents in deep water possibly exceeding 6000 m, as a function of the depth. A spherical shaped plunger having negative floatability is dropped from a boat and descends to the bottom of the sea, releases its ballast and... | 01/05/1982 |
| 4220044 | Wave measuring buoy A wave measuring buoy for measuring ocean surface wave amplitude, frequency and direction of propagation is disclosed. The buoy includes a single-axis accelerometer suspended as a pendulum inside a water-proof housing. The water-proof housing is connected... | 09/02/1980 |
| 3990987 | Smoke generator A smoke generator is disclosed which is particularly suitable for mounting on the wing tips of an aircraft and for conducting airflow studies. The device includes a network of thermally insulated tubes for carrying a fluid which is used to produce smoke. ... | 11/09/1976 |
| 3972231 | Method for measuring velocity and direction of currents in a body of water A method for measuring the velocity and direction of currents in the ocean nd other bodies of water. A first vehicle travels through water and leaves behind a trail of dye. A second vehicle travels, at a later time, the same path as that traveled by the fi... | 08/03/1976 |
