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| Number | Title | Issue Date |
| 4425042 | Positioning measuring apparatus and method A portion of a collimated light beam is directed at an article, and the resultant shadow-containing beam is reflected by a mirror onto a linear photodiode array. A second portion of the collimated beam is initially reflected by the mirror toward the artic... | 01/10/1984 |
| 4425043 | Device for detecting the position of an object A device is described for detecting the position of an object, which device comprises a radiation source, beam-splitting prism, and a detection system comprising a plurality of radiation-sensitive detectors. The object to whose position is to be measured ... | 01/10/1984 |
| 4402609 | Light curtain apparatus Light curtain apparatus incorporating a cyclical scale generator has a light transmitter 12 which projects a light beam onto an optical scanning device 13 located at the focal point of a strip-like concave mirror 14. As a result a parallel scanning light ... | 09/06/1983 |
| 4403142 | Moving object detecting apparatus A moving object detecting apparatus of which a plurality of light receiving means arranged to have a common light receiving zone and a plurality of independent light receiving zones are disposed within a single casing together with a light emitting means.... | 09/06/1983 |
| 4399648 | Method for evaluation of balloons of yarn-like products A method for evaluation of balloons of yarn-like materials. Ballooning of yarn-like materials is converted to an electric signal, the electric signal is amplified and the electric signal is analyed by a Fourier analyzer to know respective frequency compon... | 08/23/1983 |
| 4373816 | Scanning beam optical position determining apparatus and method A method and apparatus for determining the location of a target surface by projecting a periodically scanning pattern of light onto the target surface, and comparing the time of projection of a predetermined point of the pattern along a predetermined path... | 02/15/1983 |
| 4359675 | Electrical control system and method for a tire building machine server An electrical control system (31) for a tire building machine servicer (10) and method for controlling the position of a component material (13) emitted from the servicer (10) on a conveyor (12) includes an electrical guidance system (33) and an electrica... | 11/16/1982 |
| 4352022 | Reading of marks Marks on test answer sheets and the like are detected by scanning with fiber optic line-to-circle converter using a single photocell. Four to five rows of optical fibers each about 2 to about 3 mils thick make up the fiber optic line, and the fiber optic ... | 09/28/1982 |
| 4346778 | Automatic safety belt system An automatic safety belt system includes a belt band wound on a spring-loaded roller and a signaling device for signaling when a sufficient length of the belt has been unwound to utilize it. The signaling device is a form of an electro-optical device.... | 08/31/1982 |
| 4341472 | Method and apparatus for positioning a tapered body A technique for positioning a body having a tapered profile when viewed along a first axis comprises exposing the body to a first beam of light oriented along the first axis in a manner such that the tapered profile is projected as a first image onto a fi... | 07/27/1982 |
| 4297586 | Photo-electric digital circuit for monitoring strip loop position Apparatus for monitoring strip loop position, having a plurality of light sources and a corresponding plurality of photo-detectors spaced from each other in the strip loop reservoir on opposite sides of the strip loop path; each photo-detector is connecte... | 10/27/1981 |
| 4291825 | Web guiding system A system for positioning a web of material as it enters and passes through a course for treating the web, as in a printing press, is disclosed. The edges of the web are scanned by infrared sensing devices which are connected by various electrical circuits... | 09/29/1981 |
| 4288272 | Label applicator with sensor A label sensor adapted for use with a labeller comprises an emitter, a receiver and a fibre optic bundle for transmitting an emitted beam to the receiver. The labeller is of the type which separates spaced-apart labels from a carrier by passing the carrie... | 09/08/1981 |
| 4286201 | Automatic part positioning system A system for precisely positioning a printed circuit board relative to a component insertion tool, the system including a circuit board-holding frame movable with two degrees of freedom in a plane by a servomechanism coupled to a photo detector assembly p... | 08/25/1981 |
| 4267443 | Photoelectric input apparatus A photoelectric touch input panel has a plurality of crossed light beams which are broken by an object, the position coordinates of which are identified as outputs. Two spaced apart beam surfaces are provided, and the interrelationship between the beams i... | 05/12/1981 |
| 4254342 | Multiplexed incremental position controller A plurality of pockets of a document sorter are controlled by a time-division multiplexed controller, in order to insure that the bottom and leading edges of documents within each pocket are aligned. The controller utilizes a programmed microcomputer in a... | 03/03/1981 |
| 4251157 | Apparatus for selecting originals for copying A strip of negatives is transported over a slit extending transverse to transport, and the image of successive slit-like elements of each original is projected onto the row of photosensitive zones of a CCD image sensor unit. A photodetector also receives ... | 02/17/1981 |
| 4243925 | Register control system for web operating apparatus A control system is disclosed for acquiring and maintaining a register condition for successive repeat lengths of a moving web relative to a cut-off apparatus or the like in a web operating apparatus of the type which includes an adjustment means for adva... | 01/06/1981 |
| 4192999 | Control device for automatic color-sorting apparatus A control-device for automatic color-sorting apparatus, comprising a light source located in front of a photorelay and a computing circuit, wherein the photorelay is coupled with and in the computing circuit, comprising a first linear-voltage generator, t... | 03/11/1980 |
| 4164659 | Method of monitoring the phase state of material in processes involving crystallization from melt and apparatus for performing same While monitoring the phase state of a material in processes including crystallization from a melt, a photo-optical system is operated to receive the radiation coming from the material being treated, and the amplitude-frequency spectrum of the output elect... | 08/14/1979 |
| 4150299 | Level sensor for an air-spring shock absorber A level sensor for an air-spring shock absorber is sensitive to the axle-to-body distance of the vehicle on which the shock absorber is mounted. The level sensor comprises a thin support plate formed of resilient material that may be deformed to fit withi... | 04/17/1979 |
| 4117341 | Control means An occluder for interrupting an energy beam is used to control the direction of travel and to stop a moveable member at a reference position from any position remote thereto.... | 09/26/1978 |
| 4080066 | Apparatus for prereading film frames or the like Apparatus for processing signals which are transmitted by the transducers of photoelectric cells scanning discrete marginal fields of square or rectangular film frames on a web of photographic film has relay-actuated switches which can connect the transdu... | 03/21/1978 |
| 4032041 | Dispensing apparatus having temperature compensating fluid metering A plurality of refrigeration units are successively charged with a liquid refrigerant which is dispensed by a positive displacement pump including a hydraulically actuated ram or piston slidably supported within a dispensing cylinder. An elongated tension... | 06/28/1977 |
| 4021119 | Position gauge An optical gauging apparatus includes structure defining a pair of light beams. One of the beams comprises a reference beam while the other is a measuring beam. An object to be gauged is positioned to partially interrupt the measuring beam. The partially ... | 05/03/1977 |
| 4015117 | Unbiased modulated photo sensing systems The outputs of one or more interconnected, unbiased photovoltaic devices mounted to receive light generated by one or more modulated light sources are connected via a long cable to the input of a balanced low impedance differential input line preamplifier... | 03/29/1977 |
| 3989068 | Automatic control apparatus for weaving machine An automatic control apparatus for a weaving machine is disclosed, which includes a photoelectric detecting scheme provided at a reed of the machine such that a light beam thereof penetrates the shed of the warp sheet and detects improperly shedded warp. ... | 11/02/1976 |
| 3942002 | Signal combining circuits A signal combining circuit includes means for receiving a pair of digital waveforms of similar frequency and for producing a further waveform which is indicative by its phase of the relative amplitudes of the waveforms. A circuit arrangement is provided f... | 03/02/1976 |
