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| Number | Title | Issue Date |
| 8006397 | Remote leveling and positioning system and method Systems and methods are provided herein that provide for remote leveling and positioning. An embodiment includes a leveling device assembly. Another embodiment provides a system including a leveling device assembly and a plurality of audio devices. Further embodimen... | 08/30/2011 |
| 7434323 | Tilt sensor and method of providing the same A tilt sensor contains a first electrically conductive element, a second electrically conductive element, an electrically insulative element, and either a plurality of electrically conductive weights, or a first electrically conductive weight and a non-conductive we... | 10/14/2008 |
| 7421793 | Tilt sensor and method of providing the same A tilt sensor contains a first electrically conductive element, a second electrically conductive element, an electrically insulative element, and a plurality of electrically conductive weights. The electrically insulative element is connected to the first electrical... | 09/09/2008 |
| 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 |
| 7305772 | Graphical clinometer display system and method A system for monitoring inclination of a vehicle is disclosed, wherein the system comprises a clinometer in communication with a computer. The clinometer is configured to measure at least one inclination angle of the vehicle and send an electrical signal representin... | 12/11/2007 |
| 6922063 | Apparatus and method for capacitive level sensor A capacitive sensor including a pendulum for electronically determining an indication of angular offset and a capacitive leveling device having such a capacitive sensor for leveling an associated reference surface. The capacitive sensor detects a difference in capac... | 07/26/2005 |
| 6873253 | Device for warning drivers of automobiles of excessive speed of turning around a curve An autonomous device for warning drivers of automobiles of excessive speed of turning around a curve. The device is compact with both the sensing means and alarm audio and/or visual signal producing means. The sensing means comprises two, alternatively activated and... | 03/29/2005 |
| 5761818 | Digital inclinometer An inclination measuring apparatus including a level for measuring the inclination of an object; an LED for creating an image of the level; and a photodiode array for sensing the image of the level and for generating a level signal representative of the i... | 06/09/1998 |
| 5492329 | Golf putter with electronic leveling device and message display A putter including an electronic leveling device contains: (a) a source of electrical energy; (b) a display means for producing a signal composed of a plurality of light emitting diodes when the circuit is energized; (c) a light diffusion means placed over said sig... | 02/20/1996 |
| 5488779 | Electronic level with stereo sound indication An electronic level includes two loudspeakers, one located at each end of the level housing (beam) and controlled in a stereo-like manner. Thus the volume balance between the two loudspeakers is controlled by the angular inclination of the level. The user... | 02/06/1996 |
| 5479715 | Electronic level displaying inclination using a multi-segment fan-like display An electronic level includes a visual scale having a "fan-like" configuration of a number of elongated wedge-shaped segments. The inclination of the device is shown by graphically illuminating various of the segments on either side of a central segment li... | 01/02/1996 |
| 5313713 | Electronic level with display scale and audible tone scale An electronic level includes a visual display (similar to a ruler scale) having a number of parallel line segments. The inclination of the device is shown by illuminating various of the scale line segments on either side of the central line. When the devi... | 05/24/1994 |
| 5259118 | Electronic capacitive level with display showing direction of rotation to achieve level/plumb An electronic inclination sensor device (level) has a display which unambiguously shows the user, when the device is not level or plumb, in which direction the user should rotate the device to achieve level or plumb, by means of an LCD display showing alt... | 11/09/1993 |
| 5144823 | Bend angle indicator A removable attachment for a tube bender or for the tube to be bent for predetermining a selected bend angle to which the tube is to be bent prior to the bending operation. In a first embodiment of the device, an audio and/or visual indicator indicates wh... | 09/08/1992 |
| 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 |
| 4932132 | Electronic level apparatus and method This invention relates to an electronic level apparatus wherein a hollow torus is rotatably mounted in the level. A body of ferromagnetic fluid creates a horizontal reference and is sensed to provide an audible signal when a predetermined angular orientat... | 06/12/1990 |
| 4930787 | Golf putter including signaling device A device for producing a warning signal when a golf club is held with the longitudinal axis of the head thereof unparallel to the ground, or when the putter head undergoes any clockwise or counterclockwise rotation on the backstroke. The device includes a... | 06/05/1990 |
| 4827624 | Electronic level An electronic level for determining the angular orientation of a structure, where the error angle between actual and desired angular orientation of the structure is indicated by a variable signal perceptible to the user.... | 05/09/1989 |
| 4716534 | Microprocessor based level and angle finder An angle finder (10) and level (40) are disclosed. The level (10) and angle (40) have digital displays (17) which provide a visual, numerical representation of the angular alignment of a reference surface in relation to a gravitational vector. Angle finde... | 12/29/1987 |
| 4662809 | Automatic level device An automatic level device for sensing the height and pitch of an aircraft and for adjusting a loader platform to align with the aircraft. An umbilical cord connected between the platform and the aircraft includes a tube partially filled with mercury and h... | 05/05/1987 |
| 4658508 | Electronic level measuring systems for truck trailers An electronic level measuring device is provided for a tractor trailer in which a remote level sensing device is mounted on the rear frame of the trailer and a meter for indicating continuously the amount the trailer is tilted laterally is provided in the... | 04/21/1987 |
| 4574491 | Level with audio indicator A bubble level has at least two position sensing devices, such as mercury switches, disposed at right angles to each other and connected in a circuit having a three-position switch and an audio indicator, such as a buzzer. When the level is to be used to ... | 03/11/1986 |
| 4325190 | Bow sight A bow sight for determining proper range includes an energy source and a series of mercury tilt switches, each of which becomes operable at a different predetermined angle of bow inclination. A series of light emitting sight pins are connected to the tilt... | 04/20/1982 |
| 4223444 | Acoustic micrometer An acoustic micrometer for measuring the exact distance between two electrically interconnected metallic objects is disclosed. The micrometer comprises a micrometer head having an electrical contact at one end adapted to engage one of the metallic objects... | 09/23/1980 |
| 4079521 | Electrically actuated level An electrically actuated level having a housing with a straight edge for providing a visual signal to indicate either a horizontal or vertical orientation of said straight edge or for indicating a deviation therefrom and the direction of said deviation. T... | 03/21/1978 |
