Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7996998 | Optical device and measuring method An optical device capable of measuring a condition such as deflection of a cylindrical body such as utility pole or cylindrical column precisely and rapidly is provided. The optical device has a telescope with a projection plate. The projection plate has a reference... | 08/16/2011 |
| 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 |
| 7246858 | Structure to adjust a seat back A structure to adjust a seat back includes a seat base, a seat back, an adjusting device and a linking rod. The seat back comprises a seat back support pivotally connected to the seat base. The adjusting device includes a worm, a worm wheel and a bracket. The bracke... | 07/24/2007 |
| 7243434 | Laser theodolite and kit for converting a new or pre-existing theodolite into a laser theodolite The present invention provides a laser theodolite device and kit for converting a new or pre-existing theodolite into a laser theodolite. More specifically, in one embodiment, the laser theodolite device comprises a theodolite having a visible and/or reflective lase... | 07/17/2007 |
| 7225549 | Process and device for measuring angles in the horizontal plane The invention concerns a process and a device for measuring angles relative to the horizontal plane of elements in vehicles, with at least one laser (L) and at least one target (Z), which are located via adapters (10, 20, 30, 40) on the element to be measured... | 06/05/2007 |
| 7200946 | Alignment apparatus An alignment apparatus includes a central leg element and one or more secondary support leg elements in operative communication with the central leg element for providing support thereto. A sighting device rotatably attached to the central leg element includes an op... | 04/10/2007 |
| 7060969 | Rotating machine having rotation sensors Three rotation sensors circumferentially arranged at 90 degree intervals in a disk code wheel attached to a motor's output shaft respectively output a signal corresponding the rotational speed of the wheel. An error component of one period (one-periodic component) o... | 06/13/2006 |
| 7055253 | Surveying instrument A surveying instrument includes a surveying instrument body rotatable about each of a vertical axis and a horizontal axis; and a first collimator optical system and a second collimator optical system each of which is positioned in the surveying instrument body to co... | 06/06/2006 |
| 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 |
| 7000328 | Surveyor's tool A surveyor's tool to facilitate the measurement of the elevation of an invert within a manhole includes a rod with a dimensioning along its length. The tool further includes a slide moveable with respect to said rod. The slide includes a pair of opposing arms, the a... | 02/21/2006 |
| 6922899 | Rotary encoder There is provided a rotary encoder which can eliminate an angle error caused by an eccentricity from a measured angle without strictly adjusting hardware and which can also eliminate a graduation error. Detection of a rotation angle of the rotating section and measu... | 08/02/2005 |
| 6643940 | Device for horizontal and vertical adjustment in geodetic devices A device for horizontal and vertical adjustment in geodetic devices comprises within its housing, a horizontal adjusting system comprising a first fine adjustment drive for rotation of the device about a vertical standing axis and a vertical adjusting sys... | 11/11/2003 |
| 6625895 | Servo-controlled automatic level and plumb tool A method and apparatus for leveling at least one output light beam in a construction tool. One embodiment of the apparatus includes a laser optical assembly for producing output light beams that define plumb, level, and right angle beams for use in constr... | 09/30/2003 |
| 6622391 | Incremental rotary encoder, and a surveying instrument incorporating a magnetic incremental rotary encoder An incremental rotary encoder includes a rotary portion, a first sensor and a second sensor, the first and second sensors being arranged so as to be opposite from each other with respect to the axis of the rotary portion. The second sensor is offset from ... | 09/23/2003 |
| 6389709 | Method and apparatus for checking elevation An apparatus for checking elevation between reference markers. The apparatus includes a measuring device (e.g., a tape measure) that can measure the distance from an elevated location to the ground immediately below the location. A sighting device and a l... | 05/21/2002 |
| 6354010 | Surveying instrument A surveying instrument is provide with a telescope which is movably supported, an auto-focusing system. Based on a movement of the telescope, a moving status of the telescope is determined from among a rough sighting status, a fine sighting status, and a ... | 03/12/2002 |
| 6314651 | Rotary laser irradiating system and photodetection system The system according to the present invention comprises means for irradiating a plurality of laser beams by separating the laser beams in a vertical direction and means for forming a plurality of laser beam reference planes by rotary irradiation of said p... | 11/13/2001 |
| 6163294 | Time-tagging electronic distance measurement instrument measurements to serve as legal evidence of calibration A combined satellite positioning and electro-optical total station system including a satellite navigation receiver and a reference oscillator with a reference frequency output that can be related to precision time standards obtained from orbiting navigat... | 12/19/2000 |
| 6138367 | Tilt prediction for total station A tilt predictor incorporated into a total station to predict the degree of tilt of the rotational alidade portion of a total station corresponding to the rotational orientation of the rotational alidade portion. In one embodiment, the present invention d... | 10/31/2000 |
| 6129641 | Golf putting scope A scope which is positioned over a golf ball which is on a green in position for putting has a housing with a mirror and which functions as a periscope. A vertical alignment guide and a horizontal alignment guide are viewable from above the housing. The s... | 10/10/2000 |
| 6108919 | Automatic optical plumbing instrument An automatic optical plumbing instrument includes: an objective telescopically mounted at a front portion of a telescopic housing adjacent to an object to be observed, an ocular telescopically mounted at a rear portion of the housing adjacent to an observ... | 08/29/2000 |
| 6076266 | Theodolite with a disengageable adjustment mechanism A theodolite that includes a stand, a telescope, a friction gear and a worm gear. The telescope is pivotally secured to the stand. The clutch plate is secured to the telescope for at least limited rotational movement upon pivoting of the telescope. The fr... | 06/20/2000 |
| 6044567 | Geodetic device A geodetic device is described, especially on a theodolite or a tachymeter which is provided with an arrangement for adjustment over a ground point or base point. It comprises a leveling base in which a bushing provided with a continuous center bore hole ... | 04/04/2000 |
| 5960551 | Rotary laser irradiating system A rotary laser irradiating system, comprising a laser projector for performing rotary irradiation of a laser beam, a collimating telescope having a collimation axis in a projecting direction of the laser beam, and a rotation base where the collimating tel... | 10/05/1999 |
| 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 |
| 5894344 | Elevation Measurement apparatus An elevation measurement instrument including a support ruler, an optical instrument and a bracket pivotally coupling the optical instrument to the support ruler. The optical instrument includes a first ocular mount having a telescope with a horizontal cr... | 04/13/1999 |
| 5887353 | Two-speed continuous tangent screw An adjustment mechanism for a telescope of a theodolite. The mechanism includes a worm gear that is coupled to a friction gear of the theodolite. The friction gear is coupled to the telescope so that any rotation of the gear will induce a corresponding mo... | 03/30/1999 |
| 5878504 | Rifle scope vertical alignment apparatus and method A rifle scope vertical alignment apparatus includes first and second plates, each with a bottom surface shaped as an inverted V. A vertically oriented elongate slot is formed in one of the first and second plates and a receiving channel is formed in one o... | 03/09/1999 |
| 5711080 | Encoder disc rotating device for a surveying instrument The encoder disc rotating device for a surveying instrument comprising a vessel-shaped cover member 30 rotating coaxially with a rotating axis 22 of an encoder disc rotating knob 21 and having an opening formed at the arcuate lateral side for protruding t... | 01/27/1998 |
| 5689892 | Two-speed continuous tangent screw An adjustment mechanism for a telescope of a theodolite. The mechanism includes a worm gear that is coupled to a friction gear of the theodolite. The friction gear is coupled to the telescope so that any rotation of the gear will induce a corresponding mo... | 11/25/1997 |
| 5406733 | Firearm leveling device A flip-up leveling device is designed to be easily attached to an existing hand-held firearm. The purpose of the device is to eliminate sideways tilting or canting of the firearm during aiming. The device can be attached directly to the firearm or to a te... | 04/18/1995 |
| 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 |
| 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 |
| 4943149 | Telescope A bearing bush with a side opening is mounted within a telescope barrel. The telescope thus may be easily mounted on a tilting axis by simply inserting an axle into the bush. Mounting and adjustment of the tilting axis within its bearings and of angular m... | 07/24/1990 |
| 4907882 | Surveying instrument for automatically taking measurements The surveying instrument contains a component part (1) for the optical imaging of a target and a camera (2) for the electronic acquisition of the image produced in the optical instrument part. A reference mark (20) is located in the optical part (1) of th... | 03/13/1990 |
| 4691444 | Surveyor's level with constant instrument height and method A surveyor's instrument such as a surveyor's level (10) and method is disclosed wherein a constant instrument height may be provided during repeated set ups of a tripod (22) at different locations at a job site. An adjustable elevating device (24) is prov... | 09/08/1987 |
| 4459758 | Topographical surveying instrument The present invention relates to a topographical surveying instrument, comprising: a horizontal table bearing a shaft perpendicular to the plane of the table, a device adapted to rotate on the shaft and comprising: a generator of a light beam perpendicular to the a... | 07/17/1984 |
| 4367436 | Assisted manual designation system for an optical or optronic radar director theodolite device Active manual designation system combining the inertial stability of velocity loop systems with the use of the reflex movement of the operator for control purposes. It comprises a control member fixed to a support of the sight unit parallel to the aiming ... | 01/04/1983 |
| 4364175 | Grade Liner A grade liner which is used in cooperation with grade stakes to determine the grade within a ditch. Means are provided for establishing a horizontal line of sight a selected rise distance "A" above a grade stake. Plumb means are provided which intersect t... | 12/21/1982 |
