With Viewing Aid (i.e., Illuminator Or Illumination Director) Patents (Class 33/348)
  • Patent number: 10436584
    Abstract: A tool, such as a level, including audio and/or visual indicators is provided. The level may include one or more bubble level vials having a controller and a sensor. The visual indicators are associated with the vials. The controller is configured to activate the audio and visual indicators in repose to a signal received from the sensor. The controller illuminates the visual indicators for each vial when that vial indicates it is level or plumb.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: October 8, 2019
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Richard Edward Gray, Scott Terrell Moeller, Gareth James Mueckl
  • Patent number: 10393520
    Abstract: A bubble level using reflection has an elongate body, a first surface and a second surface, and a cavity which has an opening on the second surface and is arranged between the first surface and the second surface. A level arranged in the cavity has a non-opaque body having a sloping surface and a first observation surface. A bubble unit is mounted in the body of the level. The first surface is mounted between the first end of the bubble unit and the measured surface, and the first observation surface is mounted between the second end of the bubble unit and user. The bubble level which uses the reflection of light through the interface makes user can observe the bubble unit from the front when the user measures the verticality.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: August 27, 2019
    Assignees: HANGZHOU GREAT STAR INDUSTRIAL CO., LTD., HANGZHOU GREAT STAR TOOLS CO., LTD.
    Inventor: Xiaoheng Chi
  • Patent number: 10113897
    Abstract: An apparatus is disclosed for catching and accumulating oil drips associated with use of an oil level gauge tool so as to avoid contaminating the environment with oil while using the tool. The apparatus includes: a handle receiving portion capable of receiving and securing the handle of the tool; a plumb bob receiving portion capable of receiving the plumb bob of the tool, also capable of catching and accumulating oil drips from the tool; and a tape reel receiving portion capable of receiving the tape reel tool, also capable of catching oil drips from the oil level gauge tool. The apparatus can have a hanger arm, attached to the tape reel receiving portion, the hanger arm being capable of attaching to a structure so as to support the apparatus. The apparatus can also have a base capable of resting on a surface so as to support and stabilize the apparatus.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: October 30, 2018
    Inventors: Richard Kofford, Christa Pike-Kofford
  • Patent number: 10004642
    Abstract: A corneal marking system, and methods for its use, has a tilt-detecting device attached to a corneal marker, adapted to produce a signal when the corneal marker is in a horizontal position. Use of measurement devices may be coordinated between the marker and a level-measuring device positioned on a patient's head. Devices capable of measuring one, two or three axes are used and processors are provided to evaluate the data produced by the devices and provide a physician with a signal that the positions of the patient's head and the marker are such that an accurate marking procedure can be performed.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: June 26, 2018
    Assignee: ART, LIMITED
    Inventors: Ravi Nallakrishnan, Takayuki Akahoshi
  • Patent number: 9891047
    Abstract: The present invention provides a spirit level having reflection bubble which comprises an elongate body, a first surface and a second surface, a cavity which has an opening on the second surface is arranged between the first surface and the second surface; the spirit level arranged in the cavity comprising: a non-opaque body having a slope and a first viewing plane; a bubble component has a longitudinal axis perpendicular to the first surface is mounted in the body of the level, and the first surface is mounted between the first end of the bubble component and the measured surface, the first viewing plane is mounted between the second end of the bubble component and user; the image of the bubble component is formed by the reflection of the slopes; users can observe the image of bubble component from the first viewing plane via reflected by the slope.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: February 13, 2018
    Assignees: HANGZHOU GREAT STAR TOOLS CO., LTD., HANGZHOU GREAT STAR INDUSTRIAL CO., LTD.
    Inventor: Xiaoheng Chi
  • Patent number: 9618339
    Abstract: Wider overall angular viewing range for a spirit level achieved by provisioning spirit levels with a bubble vial module including a reflective surface wherein the reflective surface is manually pivotal about a pivot axis relative to a non-pivoted direct opposite viewing position such that a user can pivot the reflective surface towards himself. The system may include predetermined viewing positions.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: April 11, 2017
    Assignee: Kapro Industries Ltd.
    Inventors: Rafi Ben Josef, Yossi Palatshe
  • Patent number: 9500480
    Abstract: A compass assembly includes a base plate having a UTM corner ruler with a first axis and a second axis, an opening extending through the base plate and along the first axis, and a compass supported by the base plate.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: November 22, 2016
    Assignee: Fiskars Brands, Inc.
    Inventor: Mark Allen Neubauer
  • Patent number: 9038280
    Abstract: A recreational or outdoor mirrored compass is comprised of a base member, a hinged cover with a mirror and a sighting window for sighting a land mark, and a vial assembly pivotally coupled to said base member. The vial assembly comprises a vial, a magnetized indicator member pivotally journaled in the vial and an azimuth ring. At least parts of the inner sides of the sighting window are tapered in the line of sight.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: May 26, 2015
    Assignee: FENIX OUTDOOR AB
    Inventor: Marlin Iden
  • Patent number: 8836529
    Abstract: A chain saw hazard warning light and method for using same. A pair of oppositely-directed light sources emit light beams throughout a chain shot hazard warning zone through rectilinear, slotted openings at opposite ends of a housing. The light beams turn on, if and only if, the cutting chain is rotating about the chain guide bar; alternatively, initiation of rotation of the cutting chain is delayed to permit the light beams to turn on some time prior thereto. The zone is defined by first and second pairs of planes that diverge in opposite directions from the chain guide bar, said planes being disposed at equal, acute angles (most preferably 15°) to, and on opposite sides of, a plane that includes the chain guide bar.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: September 16, 2014
    Inventor: Kenneth J. Thomsen
  • Patent number: 8327552
    Abstract: A device includes a vial for a spirit level. The vial has at least a first and a second region, and the second region directly adjoins the first region. A marker body is provided in the vial, and the marker body in a leveled condition of the vial is disposed in the first region. One of the at least two regions is darkened and thereby the marker body is partially visible outside the leveled condition of the vial.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: December 11, 2012
    Assignee: Sola-Messwerkzeuge GmbH
    Inventors: Wolfgang Scheyer, Lukas Zwing
  • Patent number: 8291604
    Abstract: A level including an elongate hollow frame with two sidewalls and a topwall extending therebetween. A central vial is within a topnotch formed by removal of a topwall section and adjacent sections of sidewalls including notch-defining bottom and side edges. The frame includes an inner horizontal wall extending between the sidewalls at the notch-defining bottom edges. The central vial is supported in accurate orientation without calibration against a cental-vial reference surface formed in the inner horizontal wall parallel to the top and bottom measuring surfaces and defining a notch-bottom. An integral inner vertical wall extends between the top and bottom walls thereby reinforcing the frame along the frame length. A plumb-vial structure has a viewing-end region and an opposite-end region. The viewing-end region includes an elongate ramp sloping along a level-longitudinal axis toward the plumb vial with an inclination permitting vial viewing from shallow angles.
    Type: Grant
    Filed: October 27, 2010
    Date of Patent: October 23, 2012
    Assignee: Empire Level Mfg. Corp.
    Inventors: John Christianson, Charles D. Kim
  • Patent number: 8220171
    Abstract: Spirit levels including a horizontal bubble vial with improved bubble visibility for assisting user readability for leveling purposes. The improved bubble visibility is achieved by coloring a bubble's uppermost surface as perceived by a user.
    Type: Grant
    Filed: December 13, 2009
    Date of Patent: July 17, 2012
    Assignee: Kapro Industries Ltd.
    Inventors: Rafi Ben-Josef, Shahar Harari, Yossi Palatshe, Tsvi Hershkovich
  • Patent number: 7975393
    Abstract: 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 within the vial (41). The spirit level (1) comprises indicia (43, 45) relative to which the bubble (47) moves as the orientation of the spirit level (1) is altered so as to indicate the orientation of the spirit level. Optical means (29) is provided on the spirit level (1) to provide an image indicative of the position of the bubble (47) relative to the indicia (43, 45).
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: July 12, 2011
    Inventor: Paul Andrew Sparrow
  • Patent number: 7900366
    Abstract: 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 indicating an orientation of the reference surface. One or more battery-powered lights (e.g., LEDs) create a longitudinally elongated light emitting region along the corner to illuminate a longitudinally-elongated area that is adjacent to the level for use in low-light environments. The light(s) may project light through a light guide and/or light diffuser(s) extending along the corner to disperse light along the longitudinal extent of the level. The light(s) may also illuminate the corner(s) of the level and/or the bubble vials to enhance use in low-light environments.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: March 8, 2011
    Assignee: Stanley Black & Decker, Inc.
    Inventor: James Spaulding
  • Patent number: 7735229
    Abstract: 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 visibility of the vial and the bore surface comprises a reflective surface finish.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: June 15, 2010
    Inventor: James S. Allemand
  • Publication number: 20090320303
    Abstract: 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 within the vial (41). The spirit level (1) comprises indicia (43, 45) relative to which the bubble (47) moves as the orientation of the spirit level (1) is altered so as to indicate the orientation of the spirit level. Optical means (29) is provided on the spirit level (1) to provide an image indicative of the position of the bubble (47) relative to the indicia (43, 45).
    Type: Application
    Filed: April 10, 2007
    Publication date: December 31, 2009
    Inventor: Paul Andrew Sparrow
  • Patent number: 7594286
    Abstract: 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 and configured to be mounted to the structure, an indicator movably disposed in the housing having an angular range of motion about an axis intersecting the plane, and indicia provided on the housing for indicating proper angulation of the structure with respect to the plane. The indicia can be defined at least in part by a first arcuate segment, wherein the indicia and the indicator are configured to be in visual alignment to an observer when the angle of inclination of the structure with respect to the plane achieves a predetermined angle. In accordance with a preferred embodiment of the invention, the predetermined angle can be about thirty degrees.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: September 29, 2009
    Assignees: Brigham & Women's Hospital, The General Hospital Corporation
    Inventor: Samuel Z. Williams
  • Patent number: 7484307
    Abstract: 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 second linear edges extending longitudinally along opposite sides and an opening therethrough. The first of the side walls has an opening therethrough such that the opening in the upper wall and the opening in the first side wall are contiguous with one another. The first linear edge is disposed at the operative connection between the upper wall and the second side wall and extends uninterruptedly from end to end of the body. A bubble vial is disposed in the body and is visible through the opening in the upper wall and through the opening in the first side wall.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: February 3, 2009
    Assignee: The Stanley Works
    Inventor: Rachel Abrecht
  • Patent number: 7448140
    Abstract: 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 around it. The device is a specialized compass enhancement providing a standalone unit that each responder can carry. The device has a multipart structure including: (1) an underlying base is a simple compass that the responder orients to north. (2) A bezel rotatable around the simple compass is preferably square in shape and represents the building or incident area and is labeled with NIMS standardized ABCD designations. (3) An optional rotatable pointer can be independently positioned to indicate a direction to be remembered such as the direction in which the responder entered the incident area. All of the parts can be synchronized among users at any time by radioing simple verbal descriptions of the rotational setting(s).
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: November 11, 2008
    Inventor: Steven D. Nash
  • Publication number: 20080229589
    Abstract: An electrically powered hand operated cutting tool comprising a housing for accommodating a motor having an output shaft coupled to a gearbox, said gearbox being arranged to convert rotary output motion of the motor into reciprocating motion of a shaft, said shaft having a clamp disposed at one end for clamping a saw blade thereto, and a footplate for engaging with a work-piece during use, said footplate comprising an opening through which a blade disposed in the clamp can pass, wherein the tool further comprises a camera and display screen, during use, said camera being arranged to take real-time images of a blade engaging with a work-piece, and wherein the display screen displays the real-time images, said display screen being disposed on the housing so as to be visible to an operator.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 25, 2008
    Inventor: Danny Bone
  • Publication number: 20080072440
    Abstract: A level is provided, comprising a casing having a flat surface; a first bubble level aligned approximately parallel with said flat surface; a first light positioned to illuminate said first bubble level; a switch, wherein when said switch is actuated, said light illuminates said level; and a power source for said light.
    Type: Application
    Filed: September 27, 2006
    Publication date: March 27, 2008
    Inventor: Bob Armitstead
  • Patent number: 7183997
    Abstract: 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 orbiting satellite transmitter. Receiving dish location longitude and latitude, satellite to be aligned to, and true north and level orientation are so configured to provide visually for siting through an eye piece for line of site object avoidance determination prior to satellite dish antenna installation.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: February 27, 2007
    Inventors: James E. Eakes, Mark Jackson
  • Patent number: 7117608
    Abstract: 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 transfers an image of the bubble vial to a viewing plane generally parallel to the level face.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: October 10, 2006
    Assignee: Kapro Industries Ltd.
    Inventors: Duane William Zugel, Emanuel Szumer
  • Patent number: 7024781
    Abstract: 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 the ends of the vial to maintain the vial in position within the opening or space. The vial illumination feature is carried out by forming the one or more vial retaining members of a luminescent material. The luminescence of the one or more vial retaining members functions to absorb light when the tool is exposed to light, and to emit light toward the surfaces of the vial when the tool is in a darkened environment, to illuminate the vial and to enable the bubble of the vial to easily be viewed.
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: April 11, 2006
    Assignee: Johnson Level & Tool Mfg. Co., Inc.
    Inventor: Jeffrey P. Cowie
  • Patent number: 6973732
    Abstract: 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 illuminant has a first terminal suspended above the battery set. A push button is supported on the first terminal of the illuminant for pressing by the user to force the first terminal of the illuminant downwards into contact with a first terminal of the battery set. The conductive member has a base frame mounted in the locating chamber, and a contact portion extended from the base frame and inserted into the battery chamber and pressed on a second terminal of the battery set. A second terminal of the illuminant is electrically connected to the base frame of the conductive member.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: December 13, 2005
    Inventor: Gin-Sung Chang
  • Patent number: 6968626
    Abstract: 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 viewing angle in a horizontal plane.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: November 29, 2005
    Assignee: International Business Machines Corporation
    Inventor: Mirvan Wondracek
  • Patent number: 6957494
    Abstract: 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 in the cavity and defined by an interface, and first and second dark-colored bands circumscribing the cavity. The vial enhances the visibility of the bubble through the reflection of the first and second bands on the interface such that the interface along the perimeter of the bubble appears dark-colored.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: October 25, 2005
    Assignee: Empire Level Mfg. Corp.
    Inventor: Thomas P. Foran
  • Patent number: 6877242
    Abstract: 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 the pivot support. A battery housing attached to the pivot support contains a battery. First and second light emitting diodes are coupled by a switch mounted on the battery housing to first and second terminals of the battery and produced light that is directed to areas of the surface to be measured by pointed tips of the legs. The intensity and color of light emitted by the first light emitting diode are such as to sufficiently illuminate the surface under low ambient illumination conditions without disrupting acquired night vision of a user.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: April 12, 2005
    Inventors: Robert A. Mackin, Jeffrey M. Mackin
  • Publication number: 20040177524
    Abstract: 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 exterior surfaces (22,24) and an internal angled reflecting surface (26); a light source (14) for emitting light; a light tube (16) for focusing or concentrating the emitted light towards the vial (12); a base (18) for supporting the vial (12); and a power source (20) for powering the light source (14). The internal angled reflecting surface (26) within the vial (12) is positioned at a generally 45° angle for reflecting light. The light source (14), a light emitting diode (“LED”), is centrally positioned relative to the vial (12). The light tube (16) is positioned proximate to the first exterior surface (22) of the vial (12), such that the light tube (16) is positioned between the light source (14) and the vial (12). The light source (14) is then partially positioned within the light tube (14).
    Type: Application
    Filed: March 14, 2003
    Publication date: September 16, 2004
    Applicant: Hopkins Manufacturing Corporation
    Inventors: P. David Tan, Vicki Sickler
  • Patent number: 6748666
    Abstract: 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 transfers an image of the bubble vial to a viewing plane generally parallel to the level face.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: June 15, 2004
    Assignee: Kapro Industries Ltd.
    Inventors: Duane William Zugel, Emanuel Szumer
  • Publication number: 20040000062
    Abstract: A compass display or a low cost construction includes a display coupled to compass sensing and calibration devices to illuminate a portion of the display to indicate a specific heading. The display is mounted beneath a finish covering surface and includes indicia representing compass directional headings attached or printed thereon and the finish covering is supported by a substrate having a plurality of openings spaced relative to a center point and a plurality of light sources such as LED lights located in the holes of the substrate to be located behind the finish covering and aligned with the directional headings. When a light is illuminated, it is visible behind the finish covering to a driver or other occupant of the vehicle. In a preferred embodiment, twelve openings and associated light sources are provided in the substrate and spaced at 30-degree increments to provide a more precise indication of the vehicle heading.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 1, 2004
    Applicant: Johnson Controls Technology Company
    Inventors: Scott A. Hansen, Nels R. Smith, Robert F. Buege, Thomas R. Olson
  • Patent number: 6647633
    Abstract: 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 detented to selected positions and includes a mirrored sight line for direct line sighting, and a lower protective cover or shoe for the base of the compass also serves as a receptacle for instruction sheets and scales for use in taking directional readings as well as for orientation alignment on a topographic map and inclinometer readings.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: November 18, 2003
    Assignee: The Brunton Company, Inc.
    Inventor: Marlin D. Iden
  • Publication number: 20030150122
    Abstract: A liquid level system comprising: a frame having a measuring surface; an observation tube having a first end, a central portion and a second end and a longitudinal axis, the observation tube being filled with a liquid sufficient to create a positioning bubble within the observation tube and the observation tube mounted to the frame such that the longitudinal axis of the observation tube is at a predetermined angle relative to the measuring surface; a first light source mounted to said frame in a position such that the light emitted from the first light source is directed at the observation tube; an electric power source affixed to said frame and electrically connected to form a circuit with the first light source for energizing the first light source.
    Type: Application
    Filed: February 8, 2002
    Publication date: August 14, 2003
    Inventor: Stephen C. Brinton
  • Publication number: 20030110651
    Abstract: The present invention is to provide a magnetic compass, which comprises a base, a compass assembly mounted on the base, a lid pivoted to one end of the base, and an aiming device pivoted to the other end of the base. The aiming device is provided with a magnifying glass, a lighting member and a battery set. The light of the lighting member is projected towards the compass assembly and the battery set supplies electrical current to the lighting member.
    Type: Application
    Filed: December 13, 2001
    Publication date: June 19, 2003
    Inventor: Gin-Sung Chang
  • Patent number: 6578277
    Abstract: 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 one side of the compass body and its light is projected towards the peripheral walls of the compass body. As such, the compass body is illuminated at optimal efficiency and the magnetic compass of the present invention is effectively usable under low light conditions.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: June 17, 2003
    Inventor: Gin-Sung Chang
  • Patent number: 6546638
    Abstract: 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 from the container and distributed on the snow to make the location more visible to rescuers.
    Type: Grant
    Filed: August 1, 2001
    Date of Patent: April 15, 2003
    Inventor: Joan M. Beyer
  • Patent number: 6449859
    Abstract: 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 transfers an image of the bubble vial to a viewing plane generally parallel to the level face.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: September 17, 2002
    Assignee: Kapro Industries Ltd.
    Inventors: Duane William Zugel, Emanuel Szumer
  • Publication number: 20020104224
    Abstract: An direction determining instrument provides an image reversing device positioned for siting a fixed indicator indicia and a mirror image reversed compass rose supported for rotation about its center. The compass rose is enabled by a magnetic device such as a magnet, for seeking magnetic north. The image reversing device, compass rose, and fixed indicator indicia are arranged and positioned so that the fixed indicator indicia and the rotatable mirror imaged compass rose are visible in the image reversing device as a non-reversed compass rose superimposed on the indicator indicia such that rotation of the compass rose appears to move in the direction of rotation of the instrument.
    Type: Application
    Filed: February 8, 2001
    Publication date: August 8, 2002
    Inventor: David D. Barker
  • Patent number: 6357128
    Abstract: 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 detented to selected positions and includes a mirrored sight line for direct line sighting, and a lower protective cover or shoe for the base of the compass also serves as a receptacle for instruction sheets and scales for use in taking directional readings as well as for orientation alignment on a topographic map and inclinometer readings.
    Type: Grant
    Filed: July 27, 1998
    Date of Patent: March 19, 2002
    Assignee: The Brunton Company
    Inventor: Marlin D. Iden
  • Publication number: 20020017029
    Abstract: 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 from the container and distributed on the snow to make the location more visible to rescuers.
    Type: Application
    Filed: August 1, 2001
    Publication date: February 14, 2002
    Inventor: Joan M. Beyer
  • Patent number: 6298567
    Abstract: 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 a machine operator can see a dial face of the dial indicator that is not visible and facing away from the operator. The crossbar has a bend which enables the dial indicator to be articulated to conveniently measure features near the chuck axis without interference between the spindle and the dial indicator. The dial indicator is securely mounted to a clamp adapter which is mounted to the second end. A wedge-shaped slot in the adapter is configured to receive and secure one of a plurality of sizes of dial indicators.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: October 9, 2001
    Inventor: Marcel W. Coderre
  • Patent number: 6282802
    Abstract: 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 a dual-prism sighting system is disposed at the opposite end of the base member to that of the vial. Graduated markings for a protractor are formed in surrounding relation to the compass vial along with pie-shaped recesses and magnifying lenses in the base both to take azimuth readings and map readings.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: September 4, 2001
    Assignee: The Brunton Company
    Inventor: Marlin D. Iden
  • Patent number: 6145209
    Abstract: 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 defining a central axis, and a battery receiving chamber for receiving a battery. A lighting member is disposed on the mounting plate, and has a first lead electrically connected to a first pole of the battery. First and second conductive members are connected respectively to a second lead of the lighting member and a second pole of the battery, extend above the central axial hole, and are spaced apart from each other along the central axis. A cover plate is disposed on the mounting plate for closing the chamber, and is rotatable relative to the mounting plate about the central axis between locked and unlocked positions.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: November 14, 2000
    Inventor: Gin-Sung Chang
  • Patent number: 6115928
    Abstract: 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 indicator is also disclosed.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: September 12, 2000
    Assignee: International Business Machines Corporation
    Inventor: Norman J. Dauerer
  • Patent number: 5629767
    Abstract: 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 visible photopic electromagnetic spectral region. The method for visually aligning the optical instrument (10, 26, 28) includes employing an aiming reticle (12) located at the eyepiece (18) of the optical instrument (10, 26, 28), this first reticle (12) having a reticle pattern (64) which is in focus when viewed through the eyepiece (18), and a plate (44) with a second reticle pattern (62) on one side. The second reticle pattern (62) is positioned in the optical system such that when this second reticle pattern (62) is illuminated (58) with light of the first wavelength, then this second reticle pattern (62) will be in focus and superimposed on the first reticle pattern (64) when viewed through the eyepiece (18).
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 13, 1997
    Assignee: Delco Electronics Corporation
    Inventor: Sarkis K. Tchejeyan
  • Patent number: 5487222
    Abstract: 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 level at a remote location. A lens system within the scope element allows the user to focus the image and cooperates with the horizontally disposed vial to indicate level at a distance. Alternatively, a sighting bead is incorporated into a sighting groove on the top of the housing to viewably align an object at a distance. A flip-out mirror assembly associated with a horizontally disposed vial allows the user to evaluate the horizontal level at a remote location through cooperation with the sighting bead. A recess with fixed bearings allows the housing to be mounted on a makeshift stand.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: January 30, 1996
    Inventor: Gary Fairchild
  • Patent number: 5467533
    Abstract: 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.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: November 21, 1995
    Assignee: Avionic Displays Corporation
    Inventor: William R. Dunn
  • Patent number: 5317813
    Abstract: 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, with the intermediate tube, the outer tube, and the base tube coaxially aligned relative to one another. The outer tube is arranged in typical foot graduations, the intermediate tube in inch graduations readable through the window. The outer tube and intermediate tube are arranged for nested orientation within the base tube. A modification of the invention includes an illuminated magnification lens mounted coextensively within the window for ease of viewing of the scale of the intermediate tube.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: June 7, 1994
    Inventor: Stephen D. Reed
  • Patent number: 5151753
    Abstract: 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 beamsplitter, and at least one of the three image planes is optically superimposed with the other two by the combining effect of the beamsplitter. Movable indicia elements are positioned in two of the image planes, and a fixed indicia element is positioned in the third one of the image planes. As a result, images of all three of the indicia elements are superimposed for viewing through the eyepiece lens, and the image of the fixed indicia element serves as a sighting reference. Illustratively, one of the movable indicia elements is a magnetic compass, the other of the movable indicia elements is a magnetic declination adjustment, and the fixed indicia element is a cross-hair sight.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: September 29, 1992
    Inventor: Hobart A. Whitman, III
  • Patent number: 5025567
    Abstract: 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 chamber with a highly reflective interior for containment of the light source and fiber optic cable ends, and opposite cable ends formed to closely fit the contours of the level vials for greater light transmission efficiency. Provision is made for recharging the batteries, and inadvertent actuation of the system may be prevented by locating the switch within an aperture contained within the level frame, a momentary on or pushbutton type switch, and/or the inclusion of a delay circuit providing automatic deactivation of the circuit when a predetermined time has elapsed after activation. The electrical components may be secured within the level by cover plates, which also provide secure storage for a spare electrical bulb.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: June 25, 1991
    Inventors: Robert E. McWilliams, Robert L. Karg