Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7122396 | Semiconductor acceleration sensor and process for manufacturing the same The present invention provides a semiconductor acceleration sensor wherein a semiconductor element is prevented from being damaged even when at least part of a weight is disposed in an internal space of a semiconductor sensor element and the mass of a weight is acco... | 10/17/2006 |
| 7089813 | Mass sensor and mass sensing method A mass sensor in which a connection plate and a diaphragm are joined together at their respective sides; a sensing plate is joined to the connection plate at their respective sides in the direction perpendicular to the direction where the diaphragm is joined to the ... | 08/15/2006 |
| 7080553 | Micro-accelerometer A micro-accelerometer includes first and second closed cavities, into each of which an equal quantity of gas is introduced. A membrane partitions the symmetrical first and second cavities. Temperature sensors are provided within the first and second cavities, respec... | 07/25/2006 |
| 6915697 | Testing and monitoring of a shock wave or pressure wave source A device for the testing and monitoring of the function of a shock wave or pressure wave source is provided. The testing and monitoring device is characterized in that a passive non-linear transmission element transforms very short shock wave pulses received by it, ... | 07/12/2005 |
| 6401536 | Acceleration sensor and method of manufacture An acceleration sensor includes a substrate (101), a proof mass (110, 210) over the substrate and having first and second attachment regions (113, 114, 213, 214), and an anchor structure (120, 221, 222) coupled to the substrate. The sensor additionally in... | 06/11/2002 |
| 6291908 | Micro-miniature switch apparatus A micro-miniature switch apparatus (10) includes a substrate (12) having a surface (14) with first and second channels (16, 18) extending from the surface (14) into the substrate (12). The first and second channels (16, 18) are spaced apart from each othe... | 09/18/2001 |
| 5831165 | Acceleration sensor An acceleration sensor (1) includes a parallelepiped case (2). A circuit board (3) is secured in the case (2). A sensor chip (5), on which a diffusion strain gauge (5b) is formed, is mounted on the circuit board (3). A cylindrical acceleration selecting e... | 11/03/1998 |
| 5670718 | Semiconductor acceleration detecting apparatus and safety acceleration sensor for an air bag system A semiconductor acceleration detecting apparatus having a cylinder fixed to a automobile, a piston having a predetermined mass, the piston being inserted in the cylinder and being slidable in an axial direction of the cylinder, a semiconductor pressure se... | 09/23/1997 |
| 5291784 | Fluid dynamic linear accelerometer A linear acceleration sensing device operates through a fluid medium. A fd signal output represents a differential pressure from the elastic deformation of a fluid-filled diaphragm or bellows assembly. A pair of fluid proximity sensors operate differenti... | 03/08/1994 |
| 5046056 | Self-orienting vertically sensitive accelerometer A self-orienting vertically sensitive accelerometer is disclosed for measuring a vertical component of acceleration independently of the orientation of the accelerometer. The accelerometer of the present invention includes a spherical plastic shell having... | 09/03/1991 |
| 4328699 | Flueric density and force sensor Density of a sample or its concentration are sensed by a fluidic device hng a nozzle with a divider for emitting the sample and a reference fluid as layers of a single laminar jet. The deflection of the jet in a fixed force field is sensed as an indicato... | 05/11/1982 |
| 4326559 | Fluidic force transducer A fluidic accelerometer and electromagnetic transducer formed from a plurty of vertical laminations having a nozzle, a pair of outlets for receiving nozzle fluid and a flexible member as an extension of one of the laminations which forms a vertical wall ... | 04/27/1982 |
| 4222271 | Digital fluidic output force balance accelerometer A digital fluidic output accelerometer which has a proportional fluid ampier for balancing forces acting on a mass which is rotatably mounted on air bearing means and has a digital fluidic output which produces digital signals that are proportional to ac... | 09/16/1980 |
| 4040290 | Vibration amplitude transducer A transducer for measuring the amplitude of vibration of a member vibrating at a constant frequency. An outflow aperture is supplied from a compressed air supply, and opposite to the outflow aperture an obstructing element is arranged which can close the ... | 08/09/1977 |
| 3983636 | Hydraulic fluidic level control system A hydraulic fluidic level sensor for detecting an angular deviation from vity vertical comprising an inverted pendulum in conjunction with two fluidic proximity sensors to provide an output signal proportional to the angular deviation. Opposing fluid jet... | 10/05/1976 |
| 3975961 | Fluidic transverse-impact modulator accelerometer A fluidic accelerometer employing a transverse-impact modulator for measug acceleration or velocity of a body along a specified axis of the accelerometer. This device uses two similar collinear power-input tubes directed toward each other. The axially op... | 08/24/1976 |
| 3973442 | Fluidic direct-impact modulator accelerometer A fluidic accelerometer employing a direct-impact modulator for measuring celeration or velocity of a body along a specified axis of the accelerometer. This device uses two similar collinear power-input tubes directed toward each other. The axially opposi... | 08/10/1976 |
| 3971257 | Laminar jet linear accelerometer A laminar jet linear accelerometer includes a plenum chamber to which prerized fluid is supplied and a nozzle operatively associated with the chamber for issuing the fluid in the form of a jet. The jet is conducted into another chamber, which is vented t... | 07/27/1976 |
| 3961536 | Fluidic accelerometer A fluidic accelerometer having a single sensitive axis. The accelerometer is comprised of a seismic mass having first and second end surfaces positioned perpendicular to the sensitive axis, viscous damping means for suspending the seismic mass in a normal... | 06/08/1976 |
| 3943776 | Fluidic acceleration sensor A fluidic G sensor for monitoring the acceleration or deceleration of a mile includes a hollow cylinder containing an inertial mass, e.g., a piston, which is supported by a diaphragm pressurized by gas. The gas pressure is supplied from an external sourc... | 03/16/1976 |
