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Class 33/314 - Indicator image projected on sensitized record (e.g., photographic, etc.)


Subclass of Class 33 - Geometrical instruments
Definition: Device provided with a record member (film) which reacts
No. of patents: 10
Last issue date: 04/10/2007


NumberTitleIssue Date
7201221Wellbores utilizing fiber optic-based sensors and operating devices
This invention provides a method for controlling production operations using fiber optic devices. An optical fiber carrying fiber-optic sensors is deployed downhole to provide information about downhole conditions. Parameters related to the chemicals being used for ...
04/10/2007
7040390Wellbores utilizing fiber optic-based sensors and operating devices
This invention provides a method for controlling production operations using fiber optic devices. An optical fiber carrying fiber-optic sensors is deployed downhole to provide information about downhole conditions. Parameters related to the chemicals being used for ...
05/09/2006
4731744Position sensor and system
A position sensor for a moving member of a mechanical device is disclosed. The sensor includes an optical sensing means such as solid-state image sensor and illuminating means such as a plurality of light-emitting diodes, stationarily mounted to face scri...
03/15/1988
4505048Borehole survey instrument
A borehole survey instrument is provided which includes a meniscus type floating compass member for indicating azimuth and inclination. A light source is disposed below the indicia for illuminating the indicia upwardly through the liquid in which the comp...
03/19/1985
4485563Borehole survey instrument
A borehole survey instrument is provided having a meniscus type floating compass member with indicia thereon for indicating azimuth and inclination. A light source is disposed below the indicia for illuminating the indicia upward through the liquid throug...
12/04/1984
4480391Borehole survey instrument control circuitry
A borehole survey instrument and control circuitry are described. The borehole survey instrument includes indicators for measuring angle of deviation from the vertical and angle of deviation from magnetic north and a photographic recording means for recor...
11/06/1984
4393598Borehole tool
A surface activated multishot survey tool utilizes a dampened magnetic compass movably positioned within a probe to determine the direction of a borehole. Lamps in the probe are operable to light the face of the compass. A lens projects the image of the c...
07/19/1983
4361961Device for measuring the angular orientation of horizontal bores
Two tubular elements are connected by a ball-and-socket joint and arrangements are provided for measuring angular displacement which occurs between the longitudinal center axes of the two elements....
12/07/1982
4171578Borehole tool
A single shot surveying instrument which is designed to be lowered to a desired location in a borehole and to take a single picture which indicates the direction of the borehole. The instrument operates in a first mode in which a picture is taken after th...
10/23/1979
4047306Bore hole probe
A bore hole probe instrument having a point source of light, passing through a flexible tubular portion. The point of light, which originates at one end of the flexible tubular portion, is established for example by means of fibre optics, a laser or the l...
09/13/1977
 
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