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3867630 |
Sensor for submersible probes
A sensor body has an outer peripheral exposed surface, and is provided thereon with a plurality of discrete spots on an anti-fouling substance, with each of the spots being separate and spaced from...
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3851273 |
AERODYNAMIC LASER WINDOW
This invention relates to gas lasers wherein a gaseous laser medium is excited to provide stimulated emission of radiation in the form of a laser beam of such intensity or power that the use of...
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3848961 |
OBSERVATION DEVICE
An observation device for mounting on a wall of a treatment apparatus for observing the interior of the apparatus which device has a casing, an eye-piece, a lighting device, an optical device and...
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3836237 |
WINDOW ASSEMBLY FOR USE WITH A STACK MONITOR
The present disclosure relates to spectrometry. A method is disclosed for detecting nitric oxide (NO) without first converting it to nitrogen dioxide (NO 2 ) by determining the intensity of a...
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3836193 |
REPLACEABLE SURFACE WINDSHIELDS
A windshield having a replaceable surface comprising a protective glass sheet having an optical coupling medium attached to the inner surface thereof which is contiguous with the outer surface of...
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3801418 |
TRANSPARENT ANTI-STATIC DEVICE
A transparent anti-static device having a generally transparent electrically conductive metal film on a substrate with a silicon monoxide film superimposed on the conductive film to eliminate...
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3800716 |
FURNACE CLOSURE
A closure for a high-temperature furnace such as a muffle kiln is disclosed. The closure is formed of a hollow, elongated member, the rearward end of which supports a high-temperature resistant...
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3792916 |
ANTI-LASER OPTICAL FILTER ASSEMBLY
A filter assembly for selectively removing preselected individual emission lines of laser energy from the visible spectrum comprising at least one pair of Fabry-Perot type filters which transmit...
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3788730 |
MULTIELEMENT WINDOW
A window for separating a protected environment wherein a lens system is located from a high pressure environment, such as deep sea water, without allowing the high pressure differential across the...
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3782809 |
SIGHT GLASS ASSEMBLY
An improved sight glass has been devised for an annular lens container featuring a shelf between its two ends. The sight glass is constructed in such a manner that metal corroding contents of...
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3764794 |
ILLUMINATION AND VIEWING SYSTEM FOR VACUUM OR PRESSURE CHAMBER
A vacuum or pressure chamber having a door provided therein with a circular transparent window and a circular, tubular viewing port in front of and smaller than the window. An annular lamp...
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3754679 |
INSPECTION DEVICE
An inspection device for mounting in a cavity in a body of insulating material surrounding a vessel wall, said device comprising a tubular part and a flange part connected thereto. The flange part...
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3747530 |
WINDOW PROTECTOR
A protector for an optical fuze window formed of a thin polyester film spatially displaced in front of the window and having a thin film of meltable wax deposited thereon.
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3744873 |
APPARATUS FOR MAINTAINING DETECTING DEVICES FREE OF CONTAMINANTS
A method and apparatus for maintaining the entry or lens of a detecting device, such as a flame detector, free of contaminants that might inhibit the passage of radiation into the detector by...
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3722977 |
OPTICAL SCATTERING FILTER
Long pass optical filters for the infrared region and methods of making the same are disclosed which utilize a transmitting matrix of high and low refractive index materials for selectively...
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3722537 |
SIGHT GLASS
A sight glass to permit observation of refrigerant flowing in a refrigeration system. The glass is installed directly in the refrigerant flow line, rather than in a coupling or component connected...
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3720147 |
MASK FOR SURVEILLANCE CAMERA
A surveillance camera is mounted within and disguised by a hollow spherical mask. The mask and camera rotate about an axis to scan a field of view, and the camera is aimed through a transparent...
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3717823 |
METAL-GLASS LASER WINDOW ASSEMBLY
A laser tube end window assembly comprising a first apertured metallic plate bonded to an end of the laser tube with the aperture aligned with the tube bore, a second apertured metallic plate also...
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3715684 |
WINDOW FOR A LASER TUBE END PIECE
A window for a laser tube end piece, made of doped semi-conductor material comprising super-doping in the vicinity of the parts of the windows which are to come in contact with the end pieces of...
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3711189 |
LIGHT DIFFUSING-NONDIFFUSING WINDOW
A window-like arrangement comprises two panes with a cavity between them. Liquid can be caused to flow into the cavity between the two panes in order to come into contact with an element having an...
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3665915 |
OVEN DOOR WINDOW UNIT FOR SELF-CLEANING OVENS
A window unit for a door of a self-cleaning oven has three transparent panes of glass clamped in spaced relation to provide a self-contained unit to be mounted in the window opening of an oven...
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3657474 |
PSYCHEDELIC DEVICE ATTACHABLE TO FRONT OF TELEVISION TUBE
The disclosure describes a psychesthetic device for attachment to a television screen or tube face for the production of moving variously colored light patterns for direct or indirect visual...
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3647285 |
GLASS WINDOW STRUCTURES ELIMINATING JAMIN INTERFERENCE FRINGES
A glass window structure which eliminates Jamin interference fringes includes a frame for supporting a pair of glass brackets in spaced relationship. A first glass bracket is supported in the frame...
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3646863 |
ADAPTIVE UNDERWATER CAMERA
The present invention is an underwater camera which, because of its narrow field of view, looks only at the illuminated portion of an object. The camera includes a servosystem by means of which the...
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3624383 |
ILLUMINATED INSPECTION APPARATUS
Method of and apparatus for inspecting articles while they are being treated in a heated furnace and conveyed through a brightly illuminated area. The viewing area of the apparatus is arranged in...
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3617928 |
AERODYNAMIC WINDOW FOR GAS DYNAMIC LASER
A gas dynamic laser emits an output beam from a low-pressure region downstream of a nozzle section through which gases are expanded which contain the constituents necessary to obtain a lasing...
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3611970 |
HIGH-PRESSURE WINDOW ARRANGEMENT
A transparent viewing window for high-pressure use, e.g. in a submarine, is made of an organic thermoplastic material and has the form of a hemispherical shell. The window is secured in place...
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3610942 |
PHOTOCONTROL BAFFLE MOUNTED IN THE LIGHT ENTRANCE APERTURE AND COMPRISING SMALL APERTURES OF SUCH DEPTH AND WIDTH THAT THE ANGLE OF INCIDENCE IS LIMITED TO 35°
In a street-lighting luminaire operable in response to ambient light levels through a photocontrol mounted on or within the luminaire, the improvement which comprises a baffle mounted in the...
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3604783 |
MICROWAVE CAVITY VIEWERS
Viewing ports for microwave ovens. In a first embodiment, a transparent mirror is placed over a relatively large aperture in the wall of the oven with the metallic coating of the mirror bearing...
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3599005 |
COVER HAVING A THICK WINDOW FOR PHOTOELECTRIC UNIT
A cover for a photoelectric unit which is placed over the unit to allow light to strike the photoelectric unit from a single direction. The cover comprises a transparent window having a plurality...
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3591261 |
GLASS WINDOW STRUCTURE PROVIDING REDUCTION OF INTERFERENCE FRINGES
A glass window structure which eliminates Jamin interference fringes includes a frame for supporting a pair of glass brackets in spaced relationship. A first glass bracket is supported in the frame...
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3556038 |
VIEW PORT MOUNTING FRAME AND METHOD OF MAKING SAME
A transparent view port mounting frame for a vessel comprising an annular mounting ring with means for securing it to an opening in a vessel or hull and separable conical ring members disposed...
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3549043 |
GLASS LENS SEAL RING
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3533287 |
LIQUID LEVEL INDICATOR
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3531674 |
CATHODE RAY TUBE WITH COOLING MEANS FOR THE FLUORESCENT SCREEN
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3530209 |
METHOD FOR FORMING MAGNESIUM ALUMINATE SPINEL BODIES
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3521964 |
SELECTIVELY ASSEMBLABLE ABSORPTION CELL
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3517554 |
SAFETY SIGHT GLASS
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3516839 |
TRANSPARENT MAGNESIA-ALUMINA SPINEL AND METHOD
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3515465 |
HIGH PRESSURE SIGHTING LENS WITH RELIEF PORT
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3514188 |
OPTICAL SPYGLASS
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3512354 |
WATERTIGHT WATCH CASE
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3509792 |
BALL MOUNT,PARTICULARLY FOR ARMORED VEHICLES
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3505807 |
WATERTIGHT TIMEPIECE CASE
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3500631 |
STRUCTURE OF CUT-GLASS FOR WRISTWATCH
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3496348 |
SEWER INSPECTION DEVICE
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3489489 |
SIGHTING DEVICE FOR VACUUM VESSELS
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3488103 |
ANTI-GLARE IMPROVEMENT FOR OPTICAL IMAGING SYSTEMS
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3481325 |
GASTROSCOPE
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3473319 |
WATCH CRYSTAL AND CASING ASSEMBLY
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