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| Number | Title | Issue Date |
| 7810246 | Bolt as-builter survey cone Survey tool for performing as-built survey measurements with improved accuracy by engaging with and centering on stationary fasteners. The survey tool has a substantially conical receiver with a narrow end and a wide end, the wide end adapted for centering on statio... | 10/12/2010 |
| 7364128 | Methods and apparatus for support mechanism assembly Methods and apparatus for a support mechanism are provided. The support mechanism includes an engagement pin including an engagement surface and a latch surface wherein the engagement pin is coupled to a base. The support mechanism also includes a pawl that includes... | 04/29/2008 |
| 7254359 | Transfer apparatus and image forming apparatus A transfer apparatus and an image forming apparatus are disclosed, in which a plurality of photosensitive drums corresponding to the respective colors are arranged along the outer peripheral surface of a transfer belt and a plurality of intermediate transfer rollers... | 08/07/2007 |
| 7167669 | Image forming apparatus An image forming apparatus includes plural toner image forming devices. Each of which has a rotating photoconductor, a charging device that uniformly charges a surface of the photoconductor, a latent image forming device that forms an electrostatic latent image on t... | 01/23/2007 |
| 7040030 | Laser centering device A laser centering device (30) that is attached to a survey apparatus by replacing it with a centering telescope optical system is formed of an inner barrel (32) that fixes a pentagonal prism (40) at one end thereof and is internally provided wit... | 05/09/2006 |
| 6938351 | Image forming device An image forming device has plural photoreceptor drums on which a latent image is formed, wherein one of the photoreceptor drum is different diameter from the other photoreceptors. A belt in contact with the plural photoreceptor drums and plural transfer rollers pre... | 09/06/2005 |
| 6821046 | Assembly for supporting an object Assembly for the defined support of a first object (6) on a second object (1), such as a director-mounted sight. In the top face of the director three pairs of steel balls (2a, 2b, 3a, 3b, 4 | 11/23/2004 |
| 6732439 | Wall form aligning tool A wall form aligning tool includes a tool for determining a straight line along which wall forms may be constructed. Inner wall forms are positioned between a pair of corner wall forms. The device comprises a target attachment for selective attachment to one of the ... | 05/11/2004 |
| 6577388 | Laser level with protective housing A laser level with a housing composed of two parts for storing the laser level in a protected manner, wherein the laser level is composed of an instrument body, bubble levels in the instrument body, a laser beam generator with lens system and a fixed leg ... | 06/10/2003 |
| 5949548 | Height sensing measurement device A measurement device has a telescope supported by a main body of a total station so as to be rotatable about the horizontal axis. A vertically extending light-passing hole is formed in the main body, so that a distance measuring light wave, which is emitt... | 09/07/1999 |
| 5644850 | Laser plumb device A laser plumb device (10) comprising a facility (12) for emitting two narrow light beams (A) and (B) in which the light beams (A) and (B) are opposite and aligned to each other. A structure (14) is for supporting the light emitting facility (12) in a vert... | 07/08/1997 |
| 5639966 | Machine height measuring method and machine height measuring device for surveying machines A method of measuring machine height of a surveying machine includes setting a surveying machine such that the machine center situates on a vertical line passing through a measuring point defining a crossing point between a horizontal line passing through... | 06/17/1997 |
| 5572797 | Improved optical plumb and leveling apparatus An apparatus for performing plumb and level functions includes a base unit that can be leveled in a horizontal plane. A detachable socket with a bearing surface rotates about a complementary bearing mechanism on the base unit about an axis of rotation tha... | 11/12/1996 |
| 5566459 | Laser beam emitting device to be used as levels A laser beam device to perform sightings and tracings which makes use of a calibrated tube inside which resides a laser emitting component of which the optical emitting axis coincides with the mechanical axis of the tube, a mirror securely mounted at the ... | 10/22/1996 |
| 5501018 | Tribrach device An improved tribrach device for attaching an optical sighting instrument to a support such as a tripod. The tribrach device includes a pivotable locking ring for securing the legs of the sighting instrument to the tribrach. The locking ring is biased towa... | 03/26/1996 |
| 5446967 | Mounting apparatus Apparatus adaptable for attaching to a plurality of lugs associated with a vehicular wheel assembly to enable mounting a wheel alignment instrument or other device adjacent to the vehicular wheel assembly, the apparatus including a plurality of lug engagi... | 09/05/1995 |
| 5421096 | Gear driven alidade assembly An alidade surveying instrument, comprising a pair of gimbeled yokes, a mounting base supporting the pair of gimbeled yokes for rotation on axes perpendicular to one another, a ranging device carried by the gimbeled yoke pair for targeting a remote object... | 06/06/1995 |
| 5406713 | Apparatus for maintaining a scientific and measuring instrument or the like in a level plane An apparatus for maintaining a scientific or measuring instrument or the like in a level horizontal plane. The apparatus comprises an inclinometer comprising a support housing and a plumb member freely suspended within the support housing. The plumb membe... | 04/18/1995 |
| 5400516 | Holder and stand for plumb finder ruler and surveyor's rod An adjustable stand developed to facilitate an accurate measurement of vertical distances from a surface, on which at least one leg of the stand rests to a given point above that surface. The surface may be either ground surface or a surveyor's hub on a s... | 03/28/1995 |
| 5400515 | Water-proof structure for measuring apparatus A measuring apparatus having a high water-proof property has water-proof rings rotatably disposed about outer peripheries of a horizontal shaft and a vertical shaft bearing. Gaps between the rings and the peripheries of corresponding openings in a housing... | 03/28/1995 |
| 5222708 | Tripod safety collar A shock absorbing collar assembly mountable in projecting relation to instrumentation supported from a stand. In one construction, a resilient, annular cushion member and mating rigid cover protect the instrumentation upon stand collapse or tip over. In o... | 06/29/1993 |
| 5163229 | Plumb and horizontal locating device A device is disclosed for accurately and precisely locating specific points on ceilings or, alternatively, on the the same horizontal plane. A light emitting means, a pendulum, a support, and two cylindrical rods act in concert to provide a light beam tha... | 11/17/1992 |
| 5159760 | Device for aligning a geodetic instrument over a defined position mark A device for centering geodetic instruments over defined ground marks or defined position marks is described, in which a visible light beam is projected onto a ground mark or position mark. In an advantageous additional feature, the light beam of the inve... | 11/03/1992 |
| 5119564 | Line of sight target adaptor A line of sight target adaptor to be used with theodolite and photogrammetric optical targets involves a base portion in the shape of a segment of a sphere provided with a cylindrical portion upstanding from the side of the segment from the flat portion o... | 06/09/1992 |
| 5084980 | Laser alignment system for well equipment A laser beam is used to align instruments, directional core barrel assemblies or other directional equipment before the assemblies are run into wells. A low power laser and special means for clamping the laser and a target to the members of the assembly a... | 02/04/1992 |
| 5042168 | Horticultural measuring apparatus A measuring instrument for use in the measuring of horticultural growth defined as a base tube, including series of tubes of progressively decreasing diameters, each telescopingly receivable within an underlying tube defining five to seven sections, each ... | 08/27/1991 |
| 5031328 | Illuminated optical tooling target An improved target for use in an optical measurement system comprising an upper cylindrical housing portion and a lower cylindrical housing portion separably coupled at an intermediate location, the lower housing portion having a lower cylindrical region ... | 07/16/1991 |
| 5007175 | System for materializing a point in space, applications thereof and a tooling assembly for said system A system is disclosed for materializing in space a point whose coordinates in a system of reference axes are known, comprising: an optical aiming apparatus, occupying a pre-determined position with respect to said system of axes and making it possible to deter... | 04/16/1991 |
| 4964218 | Optical or laser ball target assemblies for precision location measurements The invention is directed to targets for use where precise alignment and location measurements on an object is required. Several embodiments of the invention are described. The targets have at least a portion of their outer surface curvilinear. The target... | 10/23/1990 |
| 4949467 | Inclinometer including an apparatus for maintaining a scientific and measuring instrument or the like in a level plane The present invention provides an inclinometer comprising a supporting housing and a plumb member suspended within that supporting housing. The plumb member is provided on its exterior surface with a sensor, while the supporting housing is provided on its... | 08/21/1990 |
| 4888881 | Direct height measuring device for surveying instruments A direct measuring device for the direct and exact measurement of the height of a surveying instrument above a ground point. The direct measurement device includes a frame having an upstanding portion and a pair of arms substantially normally extending th... | 12/26/1989 |
| 4875291 | Rotating reflector prism and target In a device for use as a remote reflector in an electronic distance measuring instrument, a prism is mounted in the center of a two sided target, with both the prism and target being rotatable 360°, as a unit, about an elevational axis to provide bi-dire... | 10/24/1989 |
| 4771545 | Precision pointing mechanism A telescope (10) is precisely pointed by a detent mechanism (32) in a sighting direction (18) after a motor (22) generally positions the telescope. The detent mechanism includes a roller assembly (60) precisely journalled at one end of an arm (38) which i... | 09/20/1988 |
| 4759133 | Method and apparatus for automotive wheel alignment Method and apparatus for automotive wheel alignment in which a telescope is mounted with its axis precisely parallel with the end plane defined by the automotive wheel hub. A calibrated target is placed and centered directly in front of the telescope on i... | 07/26/1988 |
| 4742618 | Bisector sighting device A device for visually identifying the bisector of an angle, curve, line or space between two points and for visually identifying any point or points along the bisector. The device includes a base, a first arm, a second arm, an indexing assembly, at least ... | 05/10/1988 |
| 4691443 | Drive-in, drive-out vehicle alignment system A vehicle alignment system uses transverse, longitudinal and vertical bars mounted on a vehicle and equating to X, Y and Z axes for establishing the dimensions of the vehicle, which dimensions are then compared to the vehicle engineering specifications. T... | 09/08/1987 |
| 4656878 | Rotation axis fine adjustment apparatus There is disclosed a rotation axis fine adjustment apparatus for finely adjusting rotation of a mounting portion rotatably mounted on a rotation axis with respect to a base portion through a fastening frame by suitably fastening and finely adjusting the r... | 04/14/1987 |
| 4641804 | Article supporting bracket for survey tripod A bracket between the head of a tripod and a primary surveying instrument has a bottom ring provided with a disc, a collar rotatable on the disc and a top collar-retaining ring releasably attached to the bottom ring. A plate, integral with and extending l... | 02/10/1987 |
| 4593474 | Survey vehicle A mobile vehicle capable of stabilized observation of topographic features for land surveying is provided. The vehicle is adapted to convert to a stabilized observation platform by the use of stabilizing means, such as swing and lift apparatus mounted on ... | 06/10/1986 |
| 4547972 | Tilt sensor and monitoring system An angular measuring system consisting of one or more sensors that transmit angular measurements to a central control unit where numerical readout of any selected sensor is provided. A threshold can be preset at individual sensors or the control unit for ... | 10/22/1985 |
