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| Number | Title | Issue Date |
| 8056247 | Tilt sensor A tilt sensor including a body, an LED, a first photosensitive device, a second photosensitive device, and a moving thin-element is provided. The body has a movement region, a first containing region, a second containing region, and a third containing region. The fi... | 11/15/2011 |
| 7975394 | Tilt sensor The invention is directed to a tilt sensor comprising at least one body movable along a predefined path and an optoelectronic unit for determining the position of said body, said tilt sensor being surface-mountable. The invention is further directed to a tilt sensor... | 07/12/2011 |
| 7950162 | Tilt sensor and method for making the same A tilt sensor includes a light emitting element and two light receiving elements accommodated in a case. The case is formed with an inner space in which a rolling member is provided in a freely movable manner by the pulling force of gravity. A cover plate is fixed t... | 05/31/2011 |
| 7526870 | Inclination sensor An inclination sensor is provided having a level which has a liquid and a gas bubble in a housing under a covering glass, wherein a light source is arranged above the covering glass. The invention is based on the object of providing an inclination sensor which can b... | 05/05/2009 |
| 7353615 | Anti-vibration tilt detector The tilt detector has a container with a receptacle located therein. The receptacle has open and closed ends. In its normal, upright orientation, a first mass is located inside of the receptacle. A second mass is located adjacent to the open end of the receptacle. W... | 04/08/2008 |
| 7322118 | Non-contact electronic level A non-contact electronic level has a light source, a vial having a bubble and positioned to be irradiated by light from the light source, and a photo sensor located at a position corresponding to the bubble at a fixed distance from the vial. The photo sensor capture... | 01/29/2008 |
| 7161138 | Electrical product and tilting control device thereof An electrical product and a tilting control device thereof are provided. The tilting control device comprises a shell body, a light source, at least a transparent box, an opaque element, a plurality of photo-sensing units and a logic circuit. The light source is dis... | 01/09/2007 |
| 7152547 | Seismic vessel having motion-stabilized helicopter landing platform A helipad motion compensation system for a vessel includes at least one controllable length actuator operatively coupled between the helipad and the vessel. The system also includes an attitude sensor disposed on at least one of the helipad and the vessel. The senso... | 12/26/2006 |
| 7069662 | Drill level indicator A power tool includes a leveling device which includes a rotatable member which seeks an equilibrium position which corresponds to a level position. A rotating device includes a member which enables passage of a beam. An electrical circuit which includes an emitting... | 07/04/2006 |
| 6987460 | Orientation device Disclosed is an orientation device that may be deployed in a mechanical assembly such as a surveillance camera or enclosure to positively determine the physical orientation and/or attitude (tilt), or any change in such physical orientation and/or attitude, of either... | 01/17/2006 |
| 6943339 | Tilt sensor and method of making same An apparatus and method of making the same for sensing inclination. The apparatus includes a member moveably positioned in a body, the member moves in response to gravity between two positions if the body is rotated relative to an axis exceeding a certain amount. A ... | 09/13/2005 |
| 6723979 | Roll arming sensor A roll arming sensor is provided for determining an arming signal for use on a vehicle for rollover detection. The roll arming sensor includes a light source for generating a light beam and a receiver for detecting the light beam. Disposed substantially horizontal b... | 04/20/2004 |
| 6708416 | Inclination sensor An inclination sensor includes a tubular chamber extending along a curved longitudinal axis. A mass is located within the chamber and moves by gravity to the lowest point of the chamber. A pair of location sensors are mounted on opposite ends of the chamber and dete... | 03/23/2004 |
| 6664534 | Tilt sensing device and method for its operation A tilt sensing device and method for its operation, the device being of the type comprising a) a housing, b) a radiation transmitter and a radiation receiver arranged in or at the housing to form a beam path therebetween, c) a radiation obstructing or def... | 12/16/2003 |
| 6649927 | Tilt detecting device A tilt detecting device for detecting tilt by a reflection light from a free liquid surface, comprising a photodetection element, a liquid member for forming the free liquid surface, a fixed reflection member fixed on a structural member, a free liquid su... | 11/18/2003 |
| 6647634 | Reliably sensing bubble leveling means A bubble leveling device includes a bubble level having a gas bubble formed on a liquid surface, an illuminator projecting light through or towards the gas bubble for producing an optical image of the gas bubble, and a sensor having a coordinate screen fo... | 11/18/2003 |
| 6343422 | Tilt angel measuring device The present invention provides a tilt angle measuring device comprising a glass container with a solution 11' and air bubble 12 sealed therein for measuring a tilt angle by detecting displacement of said air bubble 12, wherein said solution contains N-met... | 02/05/2002 |
| 6320653 | Multiple-axis inclinometer for measuring inclinations and changes in inclination A multiple-axis inclinometer for measuring inclinations and changes in inclination comprises a cell which contains a liquid forming a horizon and which has a transparent base, and a device for illuminating a cross-line plate and imaging optics in the form... | 11/20/2001 |
| 6248989 | Tilt detecting device The tilt detecting device of the present invention comprises a light transmission type electric bubble tube, a light source for emitting detection light to the electric bubble tube, a photodetector element for detecting emitted light amount for detecting ... | 06/19/2001 |
| 6202488 | Vehicle rollover sensor A vehicle rollover sensor (10) includes an optical transmitter (80) for providing a light beam (86) extending in a first direction (36) and an optical receiver (90) for receiving the light beam. A movable member (40) when in a first orientation enables th... | 03/20/2001 |
| 6037874 | Electronic level with laser inclination indicator An electronic level with a laser inclination indicator. In one embodiment, the level includes a sensor that determines an inclination of the device relative to a null inclination. The sensor generates an inclination indication signal. A housing in which t... | 03/14/2000 |
| 5953116 | Tilt detecting device A tilt detecting device of the present invention comprises a bubble tube 21, a light emitting element 22 for emitting detection light and photodetector elements 23 and 24 arranged opposite to each other with the bubble tube therebetween, and at least a li... | 09/14/1999 |
| 5392112 | Inclination angle metering apparatus An inclination angle metering apparatus is arranged such that a beam from a light source is split into two beams by a half-mirror provided in a light path between the light source and the surface of a liquid. One beam is reflected by the liquid surface fa... | 02/21/1995 |
| 5373153 | Optoelectronic tilt detector having tapered floors extending in same direction An optoelectronic tilt detector (10 and 35) having a cavity (17) is provided. The cavity (17) has a sidewall (18), a tapered floor (19), and a tapered ceiling (20). The tapered floor (19) and the tapered ceiling (20) have a first passage (23) and a second... | 12/13/1994 |
| 5365671 | Inclinometer A two-axis tilt sensor, or inclinometer (10), uses a spherical reference element (18) floating in an inert fluid (20) and including a magnet (42) to produce an asymmetrical weight distribution. The asymmetrical weight distribution maintains the spherical ... | 11/22/1994 |
| 5210954 | Clinometer A gradient indicator has a clinometer arranged on a motor-driven turntable allows reversible measurements to be taken and supports the gradient indicator in precisely reproducible positions on bearing faces of the base in the various measurement positions... | 05/18/1993 |
| 4972595 | Inclination sensor An inclination sensor is contemplated which includes case means having a cavity formed in the interior thereof, with this cavity having a longitudinal slope which is generally V-shaped in longitudinal profile, downwardly concave, and having a downwardly f... | 11/27/1990 |
| 4947692 | Apparatus for detecting positional changes in relation to a vertical reference direction in buildings or in building subsoil A plumb weight hung onto a plumb wire anchored firmly at one end bears a laser light emitter which lies opposite a stationary photoelectric receiver. The receiver has a photodetector arrangement which is connected downstream of an optical system and a mat... | 08/14/1990 |
| 4943158 | Sensor controlled leveling device A sensor controlled leveling device comprises an attitude detector and/or a laser sensor. In order to create a sensor controlled leveling device with which a desired relative attitude may be automatically set and held the attitude detector has a float whi... | 07/24/1990 |
| 4942668 | Digital inclinometer A digital inclinometer for detecting the angular orientation of a structure includes a rotatable encoding disk on which is mounted a horizontal tilt sensor. The inclinometer electronically measures, by angular indices on the encoding disk, the difference ... | 07/24/1990 |
| 4922620 | Device for determining the inclination of a plane with respect to theoretical horizontal plane The present invention relates to a device for determining the inclination of a plane with respect to a theoretical horizontal plane, including a box-like body defining a base plane. An inclination detector element is rotatably associated with the box-like... | 05/08/1990 |
| 4841136 | Sighting apparatus with automatic correction mechanism A sighting apparatus comprising an optical system which includes a laser oscillator and an automatic correction mechanism mounted on a rotational table, wherein the laser beams from the oscillator are emitted in any horizontal direction by remote control.... | 06/20/1989 |
| 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 |
| 4812654 | Two-axis quartz fiber passive tilt meter A two-axis quartz fiber passive tilt meter which includes housing and a quartz fiber suspended from the housing for conducting radiation and emitting the radiation from a distal end thereof. A pendulous mass is suspended from the quartz fiber and a dampin... | 03/14/1989 |
| 4798087 | Inclination detector An inclination detector is constructed such that a displacement detection plate of generally fan-shape is pivotally supported at its fan-pivot, a plurality of slits are formed in the displacement detection plate concentrically of the fan-pivot at predeter... | 01/17/1989 |
| 4760649 | Travel trailer level indicator A new solid state electronic position indicator used to determine the horizontal and longitudinal level attitude of a recreation vehicle. This device, mounted on the frame of the vehicle, senses an imbalance condition by relying on a gravity sensitive com... | 08/02/1988 |
| 4700479 | Cant angle sensor assembly The present invention is a cant angle sensor assembly which senses the amount of tilt of an object in the longitudinal, transverse and oblique directions and which effectively exhibits a damper action in all directions by a single magnetic damper means.... | 10/20/1987 |
| 4694584 | Reduced volume digital inclinometer A high resolution, digital inclinometer having a full 360° linear range with accuracy which is independent of the angle of inclination. The linearity of the inclinometer is essentially flat throughout its range and greatly exceeds analog equivalents. A m... | 09/22/1987 |
| 4584778 | Angle change detector An angle change detector which can also be used as an inclination angle detector comprises a pair of opposing magnets, a sector-shaped pendulum made of an electroconductive non-magnetic material and swingable past a spacing between the opposing magnets, a... | 04/29/1986 |
| 4571844 | Angle change detector An angle change detector which can also be used as an inclination angle detector comprises a pair of opposing magnets, a sector-shaped pendulum made of an electroconductive non-magnetic material and swingable past a spacing between the opposing magnets, a... | 02/25/1986 |
