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Class 33/348 - With viewing aid (i.e., illuminator or illumination director)


Subclass of Class 33 - Geometrical instruments
Definition: Device having means to assist the person viewing the indicating
No. of patents: 65
Last issue date: 07/12/2011


1    
NumberTitleIssue Date
7975393Spirit 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 an air bubble (47) is formed with...
07/12/2011
7735229Level 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 by the body, wherein the bore surface is configured to enhance the vis...
06/15/2010
7353614Vehicle compass system with continuous automatic calibration
The compass system of the present invention utilizes an improved calibration routine in which a processing circuit of the compass recalibrates the compass each time three data points are obtained from a magnetic field sensor that meet predetermined criteria. One suc...
04/08/2008
7350305Laser activated audible signal emitting leveler
This invention pertains to the leveling device applying the optical interaction between a laser beam and a freely floating air bubble confined in a transparent, liquid-filled vial. When the air bubble is impacted by the laser beam, the curved surface of the air-bubb...
04/01/2008
7340841Slope level
A slope level for measuring the slope of a surface is provided. The slope level includes a body having a front face and a back face and defining a first planar measurement surface. A transparent arced tube is disposed on the body. The arced tube has a first end and ...
03/11/2008
7321528Watch movement
The invention relates to a watch movement comprising an annular casing (10), having an external diameter D, which is provided with a central round opening (48) that is defined by an internal diameter d. According to the invention, the gear train (34...
01/22/2008
7266899Speed level
The present invention provides a combination tool for use by an individual workman, without resorting to assistance by another workman, for laying out horizontal and plumb lines in a confined space, such as that found in a shower stall, bathtub enclosure, or firepla...
09/11/2007
7263778High contrast spirit-level vial
A spirit-level vial comprising a transparent vessel containing a globule of a first liquid suspended in a medium comprising a second liquid, wherein said transparent vessel is essentially completely filled by said medium, and wherein said globule is capable of movin...
09/04/2007
7183997Satellite 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 properly positioning a satellite receiving dish with a known geosynchronous ...
02/27/2007
7134213Magic compass
A magic compass that gives the illusion it defies the laws of nature, providing usage as an aid for locating the direction of prayer as well as a novel promotional device for companies, having a magnetized compass needle (16) which is attached via a linking m...
11/14/2006
7125145Multi-purpose equipment
Multi-purpose equipment 10 is disclosed having a modular housing 12, a multi-function module 14 for containing electronic or mechanical devices, a tool pod 16 having multiple tools 106 pivotally attached thereto, an accessory compa...
10/24/2006
7123550Assembly and method for illuminating a watch
An assembly is provided that allows construction of a watch that includes multifunctional illumination options. The assembly of the present invention provides a means for illuminating the watch face, a high intensity flashlight and a watch locator beacon. The assemb...
10/17/2006
7117608Spirit 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 level face, and an optical transfer element fixed to the body which tr...
10/10/2006
7086167Overmolded vial for use with a level
A vial for use in a level and a method of forming such a vial are disclosed. The vial includes a cylinder having an inner surface defining a cavity, and a material molded around the cylinder. The vial preferably includes at least one marker ring positioned between t...
08/08/2006
7024781Vial 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 space defined by the tool, and one or more vial retainer members engage ...
04/11/2006
6973732Magnetic compass
A magnetic compass includes a base having a receiving chamber for receiving a compass body, a battery chamber for receiving a battery set, an illuminant chamber for receiving an illuminant, and a locating chamber for receiving an electrically conductive member. The ...
12/13/2005
6968626Horizontal 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 horizontal axis. The prism is optionally rotatable to permit changing the vi...
11/29/2005
6963284Level for indicating object tilt along user line of sight
A level apparatus for indicating the orientation relative to vertical of a surface of an object extending along a user line of sight, including a fluid vessel containing an indicator fluid including a liquid and having a fluid surface, the fluid vessel having a vess...
11/08/2005
6957494Dark-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 marker ring connected with respect to the body, a bubble positioned ...
10/25/2005
6941666Forklift mast position indicator
A device which is attachable to the mast of a forklift for indicating to the forklift operator the tilt angle of the mast in a vertical plane centered on the forklift includes a pivotably supported weighted pendulum, and an elongated activating arm secured to the up...
09/13/2005
6912793Vial and method of making same
A vial having an outer wall which is straight and cylindrical and a curved inner cavity. The inner cavity is curved in a substantially uniform arc. The apex of the curved cavity is closer to the cylindrical outer wall of the vial than the ends of the inner cavity. T...
07/05/2005
6877242Illuminated 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 pivotally connects the pivot ends of the first and second caliper legs to th...
04/12/2005
6748666Spirit 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 level face, and an optical transfer element fixed to the body which tr...
06/15/2004
6647633Low 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 circle imprinted on the vial. A hinged cover assembly can be d...
11/18/2003
6578277Magnetic compass
A magnetic compass comprises a compass body, an illuminant, a battery set, a base, and a top lid. The compass body, the illuminant and the battery set are situated within the interior section of the base and, furthermore, the illuminant is positioned at o...
06/17/2003
6546638Self-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 light to illuminate the container. The liquid may be removed f...
04/15/2003
6449859Spirit 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 level face, and an optical transfer element fixed to the bo...
09/17/2002
6357128Low 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 circle imprinted on the vial. A hinged cover assembly can be d...
03/19/2002
6298567Tram 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 adjustably support a mirror and a dial indicator, respectively, so ...
10/09/2001
6282802Hand-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 the base member to facilitate gripping of the compass, and ...
09/04/2001
6145209Illuminating 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 second direction transverse to the first direction and def...
11/14/2000
6115928Fiber 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 transmission. A method for making such a fiber optic position indicat...
09/12/2000
5629767IR 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 spectral region and the second wavelength is outside the visib...
05/13/1997
5487222Combination 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 incorporated within the housing and utilized to ascertain lev...
01/30/1996
5467533Night 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 capsule....
11/21/1995
5317813Carpentry 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 tube telescopingly directed through the intermediate tube, ...
06/07/1994
5151753Non-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 defined with reference to the main optical path and the beams...
09/29/1992
5025567Illuminated 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 several improvements over other such devices, including a light ...
06/25/1991
4899453Compass 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 profile, nonmagnetic battery connected to the light emitting dio...
02/13/1990
4831500Illuminating 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 combination of consolidated instruments-gauges. The illuminating...
05/16/1989
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