| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 033365000 |
Level or plumb, terrestrial gravitation responsive
| 152 |
| 033301000 |
Process
| 66 |
| 033355000 |
Magnetic field responsive
| 31 |
| 033354000 |
Combined
| 15 |
| 033318000 |
Gyroscopically controlled or stabilized
| 8 |
| 033333000 |
Structurally installed including relation to feature thereof
| 7 |
| 033343000 |
With angle or shape determination | 5 |
| 20090293293 | Methods and Devices for Characterizing a Surface - A measuring device comprising a base, feet connected to the base, and an inclinometer mounted on the base is used to characterize a surface. The feet are placed in direct contact with the surface at a predetermined position. The inclinometer measures the angle of the surface relative to gravity at the predetermined position. In some embodiments, multiple measuring devices are connected to an arm, in order to measure different positions on the surface simultaneously. The arm may be moved by an actuator to the next predetermined position on the surface. In some embodiments, multiple measuring devices are connected to a frame that is substantially the same size as the surface to be characterized, such that the entire surface can be characterized without moving the frame. | 12-03-2009 |
| 20120180330 | SLOPE ASSESSMENT TOOL - Applicant has devised a slope measurement tool which can be arranged in a compact storage configuration which is relatively small and lightweight. The tool can be reconfigured to several different configurations to measure the slopes of trenches, benched slopes, and other excavations. The slope measurement tool devised is adjustable to measure several different specified angles. In one form, the apparatus can be utilized to measure benching, which is described in the OSHA code. | 07-19-2012 |
| 20130326894 | GRADIENT MEASURING APPARATUS AND SYSTEM - A gradient measuring apparatus includes a gimbal assembly operably supported in a vehicle for viewing by an operator to see gradient indications. The gimbal assembly includes a support housing (such as outer orb with transparent portion) and a multi-axis gravity-biased-to-center inner orb weighted to return to gravitational center. The outer orb includes ring gradient indicators, and the inner orb includes a center indicator. By this arrangement, the center indicator accurately reflects on the gradient indicators a grade at which a surface is being cut in an excavating process when viewed in combination with the gradient indicators due to multi-axis gravitation movement of the inner orb. | 12-12-2013 |
| 20130340269 | Measurement Device - A measurement device comprising a curved container containing a liquid, a first indicator that is less dense than the liquid, and a second indicator that is more dense than the liquid, where the liquid substantially fills the container so that the position of the first indicator and/or second indicator in the container relative to the reference indicia may indicate an angle-related property of the device. | 12-26-2013 |
| 20140101949 | CLINOMETER APPARATUS - A clinometer apparatus includes a first measurement member, a second measurement member, and a coupling member. The first measurement member includes a first plate on which first angle indices are formed, and a first coupling unit that has a circumferential :surface on which second angle indices are carved. The second measurement member includes a second plate, a second coupling unit that is coupled to the first coupling unit due to the coupling member, and a compass that is coupled to the second plate. The coupling member couples the first coupling unit and the second coupling unit so that the second measurement member rotates relative to the first measurement member about a rotational axis of the first coupling unit. | 04-17-2014 |
| 033348000 |
With viewing aid (i.e., illuminator or illumination director) | 4 |
| 20110005091 | Level lite - As the name implies, this product is a compact leveling device that is configured with a series of lighting fixtures. Similar in construction to standard levels, the Level Lite is fabricated of durable metal or plastic material. A solid level, this product is available in various sizes. A series of light emitting diodes (LED) are evenly spaced apart within the circular opening of the unit which houses the liquid filled vial, providing illumination for the entire unit while in use. Power to the Level Lite is provided by an internally encased, replaceable battery, such as a standard AA alkaline battery, or coin battery. Additional contemplated power sources include solar cells and rechargeable batteries. | 01-13-2011 |
| 20130227849 | MULTI-PURPOSE UTILITY LEVEL - A device for determining level of a surface, the device comprising a plurality of level vials configured to indicate orientation of the device, the plurality of level vials disposed at distinct locations on the device. The device including a radius bottom formed in an object contact surface at substantially the latitudinal center of the contact surface and extending longitudinally the length of the surface. The device further including a joint recess disposed centrally along the longitudinal axis of the device and extending latitudinally across the device. The device also includes one or more user controllable light sources coupled to the plurality of level vials for illuminating the level vials. | 09-05-2013 |
| 20140101950 | Spirit level with LED indicators - A spirit level includes a housing, a cap at one end of the housing, a battery assembly at an other end of the housing, a LED indication assembly at a center of the housing, a vertical orientation indication assembly between the LED indication assembly and the cap, a forty-five-degree orientation indication assembly between the | 04-17-2014 |
| 20090320303 | SPIRIT LEVEL - A spirit level ( | 12-31-2009 |
| 033347000 |
Attaching means (i.e., adhesive, magnetic or vacuum viewing aid) | 4 |
| 20080263879 | Level with Magnetic Device - A level with magnetic device relates to a measuring instrument. That level includes a case body and a bubble cell on the case body, and it is characterized in that the cross section of the bottom of the case body, being the location of the reference plane, has a profiled shape, and furthermore by this is constituted a profiled slot on the bottom of the case body, a magnet is placed inside the profiled slot on the bottom of said case body, an elastic retaining bracket is pressed on top of the magnet, and the shapes of that elastic retaining bracket and the profiled slot are complementarily matched. That level solves the problem of instability of precision of the contemporary level with magnetic device, and it is widely applicable in the level industry. | 10-30-2008 |
| 20120222321 | Level with a Magnet-Mounting Structure - A levels of the type including an elongate hollow frame and a magnet secured to the frame having a magnet-mounting structure which includes first and second magnet-holding members positioning the magnet with respect to a bottom-wall opening. The first magnet-holding member has a first side flange; and the second magnet-holding member has a second side flange. Each side flange is positioned to extend along one of opposite frame sidewalls at an inner surface of a frame bottom wall. A locking member pulls the magnet-holding members together such that the side flanges are locked inside the level frame along the opposite sidewalls, thereby mechanically securing the magnet to the level frame. | 09-06-2012 |
| 20120246949 | TOOL ASSEMBLY - A tool assembly that includes a suction cup that is configured to be removably coupled to a vertical wall and a device for temporarily mounting an article to the suction cup at a desired mounting position and for indicating a position of a hanger on the vertical wall. The hanger is configured to be secured to the vertical wall to mount the article to the vertical wall. | 10-04-2012 |
| 20130305548 | MULTI-FUNCTION LEVEL WITH HANDS-FREE RETAINING SYSTEM - An apparatus and method for measuring and marking level and plumb is providently disclosed herein. The multi-function level includes one or more attachment devices to secure the level to the work or installation piece. The body of the level includes a structure to receive a fastener for coupling the level to a work piece. The structure to receive the fastener forms a hole, or a curved slot for adjustment, in the body of the level and is located near an end face at both ends of the level. | 11-21-2013 |
| 033304000 |
Borehole direction or inclination | 3 |
| 20090119937 | METHOD AND SYSTEM FOR HEADING INDICATION WITH DRIFT COMPENSATION - An apparatus and method for compensation of the effects of various bias errors encountered by inertial rate gyroscopes, particularly vibrating element gyroscopes, configured to detect heading relative to true north. Certain embodiments are suitable for reducing rotational dynamic errors associated with rotating gyroscopes. Other embodiments may include compensation of biases not related to rotational dynamics, such as thermal drift. The various methods disclosed may also account for the bias by sampling the rotational vector of the earth at an arbitrary heading, and at a heading that is 180° offset from the arbitrary heading. The sequence may be repeated numerous times to compensate for bias drift. The bias drift may be constant with respect to time (linear) or changing over time (non-linear) during the data acquisition sequence. Some embodiments include methods that utilize data from accelerometers to infer the bank and elevation angles as well as earth latitude location relative to the equator. | 05-14-2009 |
| 20100077623 | APARATUS FOR AZIMUTH MEASUREMENTS USING GYRO SENSORS - An apparatus for azimuth measurements comprises an elongated housing, a plurality of gyro sensors, each of the gyro sensors having an input axis for angular velocity measurements, spherical sensor holders arranged along the longitudinal direction of the housing, at least one motor for driving the sensor holders, a transmission mechanism for transmitting a rotation force from the motor to each of the sensor holders and a controller for controlling a rotation of the motor. Each of the sensor holders has one of the gyro sensors and is rotatable about a rotation axis so as to change the orientation of the input axis of the gyro sensor. | 04-01-2010 |
| 20160076359 | BIPARTITE SENSOR ARRAY - A bipartite sensor array comprising two portions capable of assembly into a single sensory system. A first portion includes rigid bodies connected by elongate flexures and fitted with gravimetric tilt sensors. The elongate flexures are capable of non-monotonic and non-constant bend in two degrees of freedom. A second portion includes rigid bodies connected by joints, contains the first portion. The second portion, which may be delivered and assembled separately from the first, provides rigidity and protection, enabling the first portion to have short rigid bodies and long connecting flexures, thereby reducing the number of sensors required. The bipartite sensor array is applicable to geotechnical measurements of soil and civil structures. | 03-17-2016 |
| 033332000 |
With marker | 2 |
| 20090188121 | Wall Hanging Aid - An adjustable picture and wall hanging device comprising an elongated strap having thereon a pair of spaced sliders, each slider having a point thereon to enable a spot to be marked on a wall, and a level centrally mounted on the strap for facilitating leveling of the device so that the item to be mounted will be level. Alternatively the level can be on one slider. This device enables pictures and other items to be hung on a wall in a simple, quick and easy manner. | 07-30-2009 |
| 20100325905 | Picture Hanging, Positioning and Leveling Device - The present invention relates to a picture hanging, positioning and leveling device for use in marking one or more points on a wall or other vertical surface where fastener devices should be installed in order to precisely hang one or more pictures or other objects at their desired locations on the wall. The device includes an elongate frame component which, in one embodiment, may be a carpenter's level-like apparatus, one or more first extension components extending up from the elongate frame and one or more second extension components extending out from the first extension component in a plane parallel with the face of the elongate frame. Each second extension component in configured to include at one end both a hook element for insertion into hanging elements on the back of the objects to be hung and a marking element for marking a point on the wall for the subsequent installation of a fastener device. | 12-30-2010 |
| 033351000 |
Diverse directional indicator | 2 |
| 20130160311 | MULTIFUNCTION MEASURING DEVICE - A multifunction measuring device includes: an orientation compass and an inclinometer mounted in a mounting seat and disposed in a housing so that the orientation compass and the inclinometer are respectively exposed through front and rear openings in the housing; a first magnification member disposed in the housing, connected movably to a connecting seat fixed in the housing, and including a first magnifying lens aligned with a first viewing hole in the housing; and a second magnification member connected movably to the housing, and including a second magnifying lens aligned with a second viewing hole in the housing. | 06-27-2013 |
| 20160377432 | ELECTRONIC ROLL PITCH AND YAW SENSOR USING CONDUCTIVE FLUID - A method and apparatus for determining a rotational orientation of an object is provided. Embodiments of the present invention utilize an electrically conductive fluid enclosed within a shell attached to the object such that the conductive fluid contacts different portions of electrically conductive nodes, located on the inner wall of the shell, depending on the rotational orientation of the shell. The electrically activated nodes in contact with the conductive fluid act as sensors and individually transmit electric signals to a microcontroller for transformation into an indicator of a rotational orientation of the object. The indicator of the rotational orientation is then output. | 12-29-2016 |
| 033340000 |
With measurement in plural directions or of shape | 2 |
| 20120279077 | SYSTEMS AND METHODS FOR THREE-AXIS SENSOR CHIP PACKAGES - Systems and methods for three-axis sensor chip packages are provided. In one embodiment, a directional sensor package comprises: a base; a first sensor die mounted to the base, the first sensor die having a first active sensor circuit and a first plurality of metal pads electrically coupled to the first active sensor circuit; a second sensor die mounted to the base, the second sensor die having a second active sensor circuit located on a first surface, and a second plurality of metal pads electrically coupled to the second active sensor circuit located on a second surface. The second sensor die is positioned such that the second active sensor circuit is oriented orthogonally with respect to the first active sensor circuit region and is perpendicular to the base. The second surface is adjacent to the first surface and angled with respect to a plane of the first surface. | 11-08-2012 |
| 20150033568 | TRIANGLE RULER CAPABLE OF MEASURING ANGLES - A triangle ruler includes a triangle ruler body defining three corners, three sides, opposing first surface and second surface surrounded by the three sides and three corners and a recessed annular scale located at the center thereof, and a direction indicator including a pendulum and a pointer and being pivotally connected to the center of the recessed annular scale in such a manner that the axial direction of the direction indicator passes through the first and second surfaces of the triangle ruler body, and the effects of the weight of the direction indicator keeps one end of the pointer to constantly indicate a predetermined direction. Thus, the invention combines the functions of a conventional protractor and a conventional triangle ruler to facilitate drawing a variety of different angles of lines. | 02-05-2015 |
| 033344000 |
With damper or governor for sensor | 1 |
| 20080271329 | Apparatus and method for measuring and controlling pendulum motion - A magnetically damped inclinometer has a shaft with attached pendulum that rotates. The rotation causes an index member to rotate past one or a set of magnets or electromagnets that are connected to the load. The magnet or electromagnet may be mounted directly to the load or it may be in the form of an off center ring. Another embodiment uses a spring to bias two magnets apart. A cam is attached to the shaft such that, as the pendulum and shaft rotate, a roller connected with the load or spreader bar allows the spring to push the magnets farther apart. The damped inclinometers are used to determine and provide information to respond to the initial sway of a load prior to bringing the load to a stop. | 11-06-2008 |
| 033349000 |
With preselected direction indicator | 1 |
| 20150101202 | COMPASS ASSEMBLY - A compass assembly includes a base plate having a UTM corner ruler with a first axis and a second axis, an opening extending through the base plate and along the first axis, and a compass supported by the base plate. | 04-16-2015 |
| 033335000 |
Vehicle running gear, or headlight, inclination | 1 |
| 20080295346 | Rear axle alignment gauge and method - A method and apparatus for alignment of a rear axle of a motorcycle, whereby measurement is made of the relative positions of each end of the axle with respect to the axle mounting structure, thereby reducing the time necessary for aligning the axle, and increasing the accuracy of the alignment. | 12-04-2008 |
| 033342000 |
With independent linear measurement | 1 |
| 20130318804 | Squaring and Leveling Tool - A multi-purpose squaring and leveling tool comprising a generally trapezoidal body, angled corners, and leveling inserts. The tool may be used for tradesman, pipe fitters, and home carpenters as a means of setting joints and other construction or repair. The shape of the tool allows for the squaring and leveling of joints around obstacles which may present barriers to traditional squaring tools. | 12-05-2013 |
