Did You Know...
...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7325322 | Electric park brake inclinometer A tilt sensor system (10) is provided comprising a housing (12), a magnetized region (13) within the housing (12), and a magnetized, articulated pendulum (14) magnetically coupled to the magnetized region (13) for suspending... | 02/05/2008 |
| 7318283 | Inclination sensor An inclination sensor includes: a case having a turning shaft section projected in a lateral direction on a front surface thereof; magnetism detecting means fixed on an upper side of the turning shaft section; a pair of magnets fixed in parallel to a rear surface of... | 01/15/2008 |
| 7319514 | Optical inclination sensor An optical inclination sensor is provided having at least one reflective surface and at least two separate optical fibers having ends spaced from a reflective surface. As the reflective surface tilts with respect to a pre-determined reference position the gap length... | 01/15/2008 |
| 7305771 | Rotation sensor A rotation sensor comprising a Y-shaped strip and a conducting strip is disposed in a digital imaging device. The conducting strip is disposed below the Y-shaped strip. The Y-shaped strip has two sensing arms and a fixed arm. A metal piece is disposed on each of the... | 12/11/2007 |
| 7299564 | Scanning unit and position measuring device A scanning unit including a support and a scanning plate fastened on the support by a first fastening element and a second fastening element. An eccentric element that can be rotated around a first axis of rotation and causes pivoting of the scanning plate with resp... | 11/27/2007 |
| 6944545 | System and method for determining the inclination of a wellbore A well survey system comprising and electronic survey tool for determining the inclination of a wellbore is disclosed herein with methods of use. In some embodiments, the electronic survey tool includes an electrolytic tilt sensor adapted to measure a first tilt ang... | 09/13/2005 |
| 6935424 | Mitigating risk by using fracture mapping to alter formation fracturing process A formation fracturing method with which to mitigate risk to hydrocarbon productivity includes pumping fracturing fluid, during at least part of a fracturing job time period, into a well to fracture a formation; generating signals, within the fracturing job time per... | 08/30/2005 |
| 6908398 | Automatic swing device A swing device has a supporter, a seat suspended on the supporter to swing in front and back directions, a permanent magnet installed in the seat, and an electromagnet installed to face the permanent magnet in a swing path to have the same polarity as that of the pe... | 06/21/2005 |
| 6370784 | Tiltmeter leveling mechanism A tiltmeter device having a pair of orthogonally disposed tilt sensors that are levelable within an inner housing containing the sensors. An outer housing can be rotated to level at least one of the sensor pair while the inner housing can be rotated to le... | 04/16/2002 |
| 6167631 | Plummet level A plummet level for checking the horizontal state of a surface and locating two vertically spaced points generally required by wood working in most interior decorative works. The plummet level includes a rectangular main body divided into front and rear c... | 01/02/2001 |
| 6049989 | Three-dimensional homologous surveying method and the related instrument A three-dimensional homologous surveying instrument includes a base with an outer spherical shell mounted thereon for receiving therein a ring-shaped shell holder, an intermediate spherical shell and an inner spherical shell with respective zero reference... | 04/18/2000 |
| 5884407 | Device for detecting positional changes A motion sensor has a carrier which rotatably supports a shaft. One or more eccentric weights are mounted on the shaft for rotation therewith. The carrier is supported by pins which are normal to the shaft and rotatable on bearings. One of the pins carrie... | 03/23/1999 |
| 5784794 | Sensing device A computer input device. The device is a body containing at least one tube. There is a first conductor in the tube able to move along the tube. Spaced contacts are formed within the tube and conductors extend from the spaced contacts. First interfaces rec... | 07/28/1998 |
| 5444917 | Sensing device A sensing device. The sensing device comprises a body containing a arcuate tube. A first conductor in the tube is able to move along the tube. There is a plurality of spaced contacts within the tube and conductors extending from the spaced contacts. There... | 08/29/1995 |
| 5174035 | Attitude sensing apparatus An attitude sensing apparatus for detecting a tilt angle and an azimuth angle of the tilt of a structure includes a pair of detecting devices disposed on the structure at right angles to each other. Each of the detecting devices consists of a rotary shaft... | 12/29/1992 |
| 5138771 | Three dimensional homologous surveying instrument A three-dimensional homologous surveying instrument includes a base with a spherical cover mounted thereon for receiving therein a shell holder, an intermediate spherical shell and an inner spherical shell with respective zero references set in a homologo... | 08/18/1992 |
| 5136784 | Vehicle electronic level measuring and display device A vehicle level and measuring and display device for use especially in recreational vehicles or the like for ensuring that the vehicle is in a gravitationally level position comprising a sensing unit remotely connected to a display unit. The display unit ... | 08/11/1992 |
| 4627172 | Inclinometer having two degrees of freedom An inclinometer, adapted to be rigidly secured to an object, for detecting the amount and direction of the inclination of the object in any direction with respect to a horizontal or other reference plane. The inclinometer comprises a fiber optic rod rigid... | 12/09/1986 |
| 4514908 | Level with two guide frames and ball in each A level characterized wherein two guide frames are arranged within a base member one above the other so that they cross each other at right angles. The guide frames are provided with internal rolling-contact surfaces each shaped as an upward-curving circu... | 05/07/1985 |
| 4429470 | Inclinometer In an inclinometer of the type wherein inclinations in the fore and aft and left and right directions of a motor car are displayed independently, there are provided a pair of intermeshing sector gears, weights mounted on one of the sector gears, display d... | 02/07/1984 |
| 4426788 | Inclinometers An inclinometer of the type wherein a weight rotatable in accordance with the inclination of a vehicle is provided for a drive unit, and a torque of the drive unit is transmitted to a driven unit so as to display the inclination angle of the vehicle with ... | 01/24/1984 |
| 4385449 | Method and apparatus for measuring tilt and relative bearing An improved inclinometer and method for simultaneously measuring tilt and relative bearing in remote hostile environments such as oil and gas wells involving a pair of pendulum masses attached to perpendicularly intersecting shafts and individually capabl... | 05/31/1983 |
| 4343090 | Suspension device for angle indicator A suspension device for an angle indicator intended to indicate the angle of an object to the vertical line and comprising two angle-indicating devices designed each to indicate a predetermined angle to the vertical line and located in two planes perpendi... | 08/10/1982 |
| 4336659 | Angle indicator for indicating two mutually perpendicular directions An angle indicator for indicating two mutually perpendicular directions and including two moire screen angle indicating devices, each including several screens consisting of opaque lines separated by transparent gaps with the screens of each device positi... | 06/29/1982 |
| 4288056 | Device for setting the direction and/or the inclination of an elongated rock drilling apparatus A device for setting the direction and/or inclination of an elongated rock drilling apparatus. The actual value of the direction in each of two perpendicular planes is sensed by a rotatable screen having a pattern of parallel opaque lines separated by int... | 09/08/1981 |
| 3975831 | Directing instrument A directing instrument for control of the inclination of the drill post of a drilling apparatus comprising means for sensing the inclination of the post in two directions at right angles to one another. Said means being supported by a holder arranged to b... | 08/24/1976 |
