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8151476 |
Illuminated device for checking an orientation to horizontal
An illuminated device for checking an orientation to horizontal, comprising an elongated flat surface for engaging a surface of an object; at least one bubble level disposed in relation to the...
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7975393 |
Spirit level
A spirit level (1) comprises a planar base (14) for resting, in use, on a surface whose level is to be determined, and levelling means (27) comprising a vial (41) filled with sufficient liquid that...
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7900366 |
Illuminated level
A longitudinally-elongated, hand-held level includes a body having a reference surface, a longitudinally-extending corner adjacent the reference surface, and a plurality of bubble vials for...
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7735229 |
Level tool
A level tool comprising a body including at least one vial opening that defines a bore surface and a vial positioned at least partially within the at least one vial opening and directly supported...
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7594286 |
Angle indicator
An angle indicator is provided for measuring an angle of inclination of a structure with respect to a plane, such as a horizontal or vertical plane. The angle indicator includes a housing adapted...
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7575336 |
Indirector light fixture
An indirector light fixture in combination with a leveling device which is utilized to position the light fixture at least one of a plurality of preselected angles. A method is also described for...
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7484307 |
Level with uninterrupted marking surface with high-visibility center vial
A level is provided that includes a body comprising upper and lower parallel walls and first and second side walls operatively connected with the upper and lower walls. The upper wall has first and...
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7448140 |
Emergency responder's orientation method and device
A method and device has been developed to enable emergency responders to maintain and communicate their orientation relative to a fire building or other emergency incident area as they work in and...
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7183997 |
Satellite dish location device
A satellite line of site alignment device for the installation of all satellite dish antenna. The alignment device provides a hand held orientation and angular inclination determination for...
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7117608 |
Spirit level
A spirit level comprising a body having a level face for setting a surface, at least one bubble vial mounted in the body, the bubble vial having a longitudinal axis generally perpendicular to the...
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7024781 |
Vial illumination feature for a tool such as a level
A vial illumination feature for a tool, such as a level, is configured so as to emit light toward a vial when the tool is used in a darkened environment. The vial extends across an opening or a...
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6968626 |
Horizontal plane viewable precision bubble level
A bubble level suitable for spaces that are restricted in the vertical dimension has a 45 degree prism attached to the top surface, so that the image of the bubble vial is deflected along a...
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6957494 |
Dark-banded vial for use with level
A vial, level including such vial, and method of using such level are disclosed. The vial comprises a body having first and second ends, a midpoint, and interior and exterior surfaces, at least one...
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6877242 |
Illuminated caliper instrument
An illuminated caliper device includes a caliper assembly having first and second caliper legs each having a pointed tip and a pivot end. A pivot support and first and second pivot elements...
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6851200 |
Reflecting lighted level
A reflecting lighted level (10) for facilitating leveling of an object, the reflecting lighted level (10) broadly comprising a generally frustoconically-shaped vial (12) having first and second...
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6748665 |
Illuminated spirit level
This invention describes an illuminated spirit level that can be used in an aircraft to determine aircraft attitude as well as aircraft direction. The invention essentially comprises three levels...
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6647633 |
Low profile compass with removable protective cover and magnetic bull's eye alignment system
A low profile compass of the type including a transparent base member and fluid-filled vial contains a directional indicator in the vial in the form of a circle which is alignable with another...
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6546638 |
Self-illuminated attitude indicator and method for self-rescue from avalanche
A self-illuminating attitude indicator for use by persons who have been buried in snow or the earth. The attitude indicator has a container partially filled with liquid and a manually operated...
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6298567 |
Tram bar in a milling machine or the like
The milling machine tool holder or chuck is used to support a spindle on a chuck axis through which a crossbar is transversely and slideably mounted. First and second ends of the crossbar...
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6282802 |
Hand-held needleless compass
A multi-function, hand-held compass is made up of a base member having a compass vial at one end and a socket at the opposite end to releasably attach to a clip. A lateral depression is formed in...
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6145209 |
Illuminating device for a magnetic compass
An illuminating device includes a mounting plate adapted to be mounted on a bottom of a magnetic compass in a first direction. The mounting plate has a central axial hole passing therethrough in a...
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6115928 |
Fiber optic position indicator using liquid/air light transmission
The present invention relates generally to a new fiber optic position indicator. More particularly, the invention encompasses a fiber optic position indicator that uses liquid/air light...
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5761818 |
Digital inclinometer
An inclination measuring apparatus including a level for measuring the inclination of an object; an LED for creating an image of the level; and a photodiode array for sensing the image of the level...
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5629767 |
IR laser line-of-sight alignment
A method of visually aligning an optical instrument (10, 26, 28) that simultaneously operates at two different wavelengths where the first wavelength is in the visible photopic electromagnetic...
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5487222 |
Combination level
A combination level has a rectangular housing and liquid-filled vials each having an entrained gas bubble to indicate horizontal level and vertical plumb at a local location. A scope element is...
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5467533 |
Night vision inclinometer
An inclinometer which is compatible for use with night vision equipment on aircraft and other vehicles. The inclinometer includes a white zirconia sphere movable within a damping liquid of a liquid...
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5361503 |
Accessory for carpenter levels
An accessory for addition to a standard carpenter's level includes: a light source fastenable into the finger slot common to such levels and fiber optic, light-transmitting tubes extending from the...
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5317813 |
Carpentry measuring tool
A carpentry tool employs a base tube having a window directed therethrough, with an intermediate tube having a scale recessed within the intermediate tube and a view through window, with an outer...
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5199177 |
Level
A lighted level including a frame having parallel working surfaces and an inner connecting web having an aperture with a pair of notches for supporting a liquid-containing vial. The level includes...
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5180221 |
Apparatus and method for illuminating a liquid filled container
An illuminated liquid filled container preferably for construction applications to provide a lighted level, has a liquid filled leveling container with an associated source of illumination. The...
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5151753 |
Non-parallax optical sighting instrument
An optical sighting instrument having a main optical path including an objective lens, an eyepiece lens and a beamsplitter for combining or superimposing images. At least three image planes are...
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5075978 |
Illuminated spirit level
An illuminated spirit level comprising an elongated bar having a number of apertures wherein bubble tubes are positioned for measurement of the flatness of a surface. An illumination means...
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5025567 |
Illuminated spirit level using fiber optic devices
An illuminated spirit level containing fiber optic cables for the transmission of light from the self contained light source to the level vials is disclosed. The lighting system provides for...
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5020232 |
Illuminated level
The bubble vials of a carpenter's level are individually illuminated by a respective light emitting diode (LED) energized from a battery supported within the body of the level. Charge on the...
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4956922 |
Bubble inclination gauge including a central shield for light-emitting and light-detecting means
Inclination gauge having a reservoir filled with liquid and containing a gas bubble. The position of the gas bubble is detected by light detecting devices by which light going through the...
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4912854 |
Cross vial liquid bubble illuminated level
The liquid indicating leveling device consists of a modular unit having four walls each at 90° to one another, the inside surfaces of the walls having a flat non-reflective white surface together ...
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4899453 |
Compass with LED illumination
A magnetic compass is illuminated by a light emitting diode. The compass is nclosed in a case made of a lightweight, plastic composite material. The light-emitting diode is energized by a low...
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4876798 |
Level with illuminated bubble vials
An illuminated level includes a main frame providing parallel spaced-apart flat plane working surfaces connected together by a flat main frame web. The web is provided with three main frame sight...
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RE32962 |
Level with electronic signals
A device that may be of different shapes and sizes to function as a level that emits an audio and visual signal when the device is level or parallel with gravity. It will also emit the same signals...
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4833788 |
Univeral level light adapter
A spirit level light adapter assembly having a housing which is securable to a spirit level. The adapter has a pair of flexible, resilient, light supports which are extendable from an opening at...
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4831500 |
Illuminating device
An illuminating device to be used in association with an instrument to facilitate reading indicia thereon in low light/dark conditions. The device can be attached to a single instrument or a...
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4763419 |
Optical viewing system
There is provided an optical viewing system, which is preferably a compass which eliminates the parallax and sighting problems of prior art optical systems. The compass includes a beam splitter...
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4745687 |
Level indication device and method for providing a level indication of up to three degrees accuracy
A level indicating device used to indicate proper orientation of a recreation vehicle (RV) such as a motor home, trailer, or camper. The device comprises of a generally transparent dome fixedly...
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4718170 |
Apparatus and means for vertically aligning a hollow cylinder
A vertical alignment apparatus has a light and a light fixture attached to a cable to be lowered into the cylinder to be aligned. A disk mounted on top of the light fixture and centered about the...
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4694583 |
Electronic automotive compass and display
An electronic display device for presenting directional information to the operator of a motor vehicle. The display simultaneously shows current vehicle direction of travel as well as the relative...
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4625428 |
Lighted plumb bob
An improved plumb bob having a downwardly directed light beam to indicate the point directly below the plumb bob. The light is operated by batteries within the plumb bob and, in order to prevent...
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4610094 |
Level
A level constructed of clear acrylic plastic including a piece of colored acrylic plastic which serves as a light collector and a continuous passageway in the clear acrylic which reflects the light...
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4597186 |
Lighted plumb bob
A plumb bob having a built-in light source and electrical power supply including a main barrel, a conical tip and a screw cap. Tightening of the screw cap closes the circuit for operation of the...
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4506450 |
Illuminated level
A precision level embodying solid state electronics is disclosed. A level body portion contains chambers for paired light emitting diodes operable to indicate angular deviations from true...
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4488431 |
Wind speed and direction indicator and electric current generating means
This invention relates to a wind direction indicator spherically rotatable about a liquid supported poly axial magnetic compass. The wind direction indicator determines the wind direction without...
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