Attaching Means (i.e., Adhesive, Magnetic Or Vacuum Viewing Aid) Patents (Class 33/347)
  • Patent number: 6425187
    Abstract: A locating device for vehicles with a carrier to be mounted in the vehicle in which a gyro-sensor is located to detect the movement of moving components for the purpose of determining the location. As gyro-sensors must be oriented a certain way in order to fulfill their function, and as this orientation is not possible in all installation locations, the invention is the result of the task of specifying a gyro-sensor that can be used regardless of the corresponding mounting situation, where the corresponding sensor (gyro-sensor) can be oriented at the installation location and manufactured using automated manufacturing processes and where special securing devices are not required to secure the unit in the aligned position.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: July 30, 2002
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Klaus Gebert, Werner Riegler
  • Patent number: 6354011
    Abstract: An orientation measuring device with a plurality of precision tooled grooves, indentations or the like. Two precision tooled adaptor bodies, preferably of cylindrical shape, are removably mountable in the indentations, where appropriate, for a given measuring task. The adaptor bodies are held in place by, e.g., magnets. The device is capable of determining the spatial orientation of rolls, bars, hollow or solid cylinders, ranging from small to large diameters by appropriately selecting in which of the grooves or indentations the adaptor bodies are mounted.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: March 12, 2002
    Assignee: Pruftechnik Dieter Busch AG
    Inventor: Christian Albrecht
  • 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: 5956855
    Abstract: A ladder inclination indicator has a transparent thin-walled body shell defining a rearwardly open recess containing a pivot pin supporting a gravity actuated pointer. A keeper plate forms a partial closure for the recess and carries a label which cooperates with the pointer to indicate a position of ladder inclination. Layers of pressure sensitive adhesive adhered to mounting flanges on the body shell secure the device to the side rail of a ladder.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: September 28, 1999
    Assignee: Albert J. Foss
    Inventors: Albert J. Foss, William F. Lytle
  • Patent number: 5802729
    Abstract: A leveling device for assisting in properly orienting picture frames and other hanging articles on a vertical wall surface. Preferably, the device includes a planar body having a bubble level and a suction cup for temporarily affixing the device to a smooth surface of the frame, i.e. a glass pane. A foot surface and planar hooking structure provide alternative affixing structure such that the device can be used on a wide variety of frames and the like.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: September 8, 1998
    Assignee: Patrick D. O'Brien
    Inventors: Patrick D. O'Brien, Jeff A. Weber
  • Patent number: 5625956
    Abstract: A level indicator for a child seat equipped with a rotatable carrying handle rotatably attached thereto, and having a housing in a hub of said pivotal handle with a wall defining an interior region of said hub and an indicator member having an indicator surface. The indicator member is movably received in the interior region and the wall is formed to include a transparent window defined by an edge formed in the wall, the edge being arranged so that the indicator surface is visible through the window when the level indicator is level, with the indicator member moving entirely away from the window edge when the level indicator is not level so that the indicator surface is not visible through the window. The indicator member is disclosed as being a gravity ball that freely rotates in a curved track or a pendulum rotating in the handle.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: May 6, 1997
    Assignee: Cosco, Inc.
    Inventors: Richard E. Cone, II, Alvin L. Fowler
  • Patent number: 5522146
    Abstract: A holder for releasably engaging a level and pencil therein. The holder generally comprises a housing having first and second open ends configured to releasably fit about a carpenter's pencil. A window is centrally positioned in a wall of the housing and between two longitudinally spaced-apart walls positioned within the housing which form a chamber therebetween. A port in each wall allows for extension of a bubble level between the end walls through the chamber and adjacent the window.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: June 4, 1996
    Inventor: Edwin E. Warburton
  • Patent number: 5507098
    Abstract: An electricians tool is disclosed which comprises a body which houses a sliding arm. This arm engages in an electrical outlet box cover to hold the tool under spring pressure in the said cover. A horizontally disposed spirit level and a vertically disposed spirit level are used to align the electrical outlet box cover so that it may be fastened level.
    Type: Grant
    Filed: November 25, 1994
    Date of Patent: April 16, 1996
    Inventor: James Schaver, Jr.
  • Patent number: 5402579
    Abstract: A C-clamp with integral bubble levels comprising a C-clamp which has a horizontal portion with two generally parallel vertical portions extending perpendicularly from the ends of the horizontal portion. The first vertical portion is formed with a threaded circular aperture with the axis of which is parallel with the horizontal portion. The second of the vertical portions is provided with a planar surface perpendicular to the axis of the aperture. A rod with exterior threads extends through the aperture and is rotatably coupled thereto whereby rotation of the rod will effect its axial movement. The end of the rod between the vertical portions is provided with a planar surface parallel with the planar surface of the first vertical portion. A planar surface is formed on the horizontal portion on the side thereof remote from the vertical portions. A bubble level is removedly secured to the planar surface.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: April 4, 1995
    Inventor: Robert K. Smith
  • Patent number: 5394616
    Abstract: A laser positioning device is provided in which a level is associated with a demountable mounting set-up and a plate member. The plate member projects laterally from the level and is scribed with a protractor. A pointer is pivotally associated with the apex of the protractor. A laser beam generator is associated with the pointer. Thus, a laser beam from this generator can be impinged against a remote target location that is in a predetermined orientation relative to the generator when the device is mounted by the mounting set-up.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: March 7, 1995
    Inventor: Douglas Claxton
  • Patent number: 5274927
    Abstract: A combination of a compass and a connecting arrangement. The compass includes a compass housing having a base wall, a circular wall connected to and upstanding from the base wall and a transparent window connected to the circular wall to define a sealed chamber in which is located the compass works. The compass housing has a radially outwardly extending flange thereon which is greater in dimension than the outer diameter of the circular wall. The connecting arrangement includes a strap for securing the compass housing to an archer's bow. The strap includes an elongated, uniformly thin strip of material having oppositely facing surfaces. The strap has a centrally disposed, circular-shaped first hole therethrough, the diameter of the circular-shaped hole being less than the diameter of the aforesaid flange. The compass housing is received in the circular-shaped first hole, the flange abutting the second surface on the strap.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: January 4, 1994
    Assignee: Michigan Outdoor Products, Inc.
    Inventor: Stanley L. Arnt
  • Patent number: 5274928
    Abstract: A combination of a compass and a connective arrangement for facilitating connection of the compass to a firearm or other portable object. The connective arrangement includes a one or two part elongated and hollow sleeve having an interior opening therein opening outwardly at opposite first and second ends. A housing containing the compass works is received in the first end of the sleeve. The interior opening at the second end of the sleeve has an internal thread threadedly secured to an externally threaded screw to thereby facilitate the connection of the compass works containing housing to the firearm or other portable object.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: January 4, 1994
    Assignee: Michigan Outdoor Products, Inc.
    Inventor: Stanley L. Arnt
  • Patent number: 5195248
    Abstract: The present invention relates to a plumb-bob and magnet combination for attachment to a beam. The plumb-bob and magnet combination for attachment to a beam includes a magnet having a top flat surface that is connected to the base, the magnet having two opposing sides that contain recesses, a hollow casing for encompassing a string of the plumb-bob and having a top surface slidable along the magnet, the hollow casing including lips on the top surface for sliding engagement with the recesses on the sides of the magnet, a lock on one of the lips of the casing and being cam operated by a lever that moves in the direction of an arc on the top surface of the casing for locking and unlocking the casing to the magnet, and a cantilever extending from the casing and having a free end with an aex from which the string hangs with a weight at the free end, the string being wound in the casing.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: March 23, 1993
    Inventor: Frank Juhasz
  • Patent number: 5079846
    Abstract: A liquid-type compass comprises a light-weight thin, flat disk of magnetic material so constructed that it is capable of floating on a liquid surface so as to be movable to orient itself in a North-South direction. A flat support provided for storing the disk when not in use is releasably secured to a support member. The support member is in the form of a small flat card containing survival instructions as well as instructions for use of the compass.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: January 14, 1992
    Assignee: The Brunton Company
    Inventor: Marlin D. Iden
  • Patent number: 5063679
    Abstract: The present invention relates to an improved leveling device for use with various tools or other objects during a construction or repair process. A bubble level is mounted along the straight edge of a semi-circular protractor. The protractor is movably connected to a base member and adapted to pivot thereon relative to a central axis extending through the base member. A detent mechanism is provided within the base member for maintaining the protractor at various angular settings. The base member is also adapted to rotate about the central axis and may be easily and quickly attached to or removed from the protractor bubble level as well as various types of work surfaces including wood and metal.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: November 12, 1991
    Inventor: Bruce E. Schwandt
  • Patent number: 5058283
    Abstract: A positioning device for a car seat indicates when the car seat has been properly positioned in an automobile or on a shopping cart. The positioning device includes a paper backing which is encapsulated in a plastic housing. The plastic housing includes a relief projection in the shape of an arc. A ball slides within the relief projection and against the paper backing. Printed information on the paper backing indicates when the seat is in the proper orientation according to the position of the ball.
    Type: Grant
    Filed: November 19, 1990
    Date of Patent: October 22, 1991
    Assignee: Century Products Company
    Inventors: Robert D. Wise, Mark A. Sedlack
  • Patent number: 4993710
    Abstract: A lie indicator for a golf clubhead that has utility as a golf practice aid. The indicator includes a straight bubble tube mounted in slightly skewed relation to a base member so that the axis of the tube and the axis of the base member are skewed at about one degree with respect to one another. The base member includes a flush mounted magnet that releasably secures the indicator to the face of the clubhead. The base member is aligned with a score line on the face of the clubhead so that when the golfer centers the bubble in the tube, an apparent one degree over compensation is provided. However, the lie angle of the clubhead is correct at the moment of ball impact because the mass of the clubhead causes it to rotate during the swing by about one degree.
    Type: Grant
    Filed: June 14, 1980
    Date of Patent: February 19, 1991
    Inventor: Perry C. Marshall
  • Patent number: 4977680
    Abstract: A clinometer releasably securable to a golf club head to indicate its loft and to detect its lie. The clinometer has a sector shape and its circumferential extent is sixty degrees of arc. An arcuate bubble tube having accompanying indicia to indicate differing angular orientations of a club head face is secured to the arcuate top wall of the device and a straight bubble tube extends horizontally from a flat sector shaped wall to show the lie of the club head.
    Type: Grant
    Filed: May 10, 1989
    Date of Patent: December 18, 1990
    Inventor: Perry C. Marshall
  • Patent number: 4970796
    Abstract: A tool for abutment against an object to detect when the object is at a predetermined orientation is temporarily securable to the object in order to free both of the operator's hands for other activities. Plural spirit level vials, oriented to face in different directions, indicate when the tool is vertical, horizontal or inclined at one or more predetermined angles. In the preferred form, the tool body has a central handle region from which arms extend in opposite directions and a pair of members extend laterally from the end of each arm to define segments of a right angled slot into which the object is fitted. The tool preferably has three different types of fastener including retractable nail-like pins which may be penetrated into wood or the like, elastic cords which may be used to clasp the object and magnets which cause the tool to cling to steel posts, pipes or the like.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: November 20, 1990
    Inventors: James C. Masters, Thomas K. Stevens
  • Patent number: 4908949
    Abstract: Air-bubble level for portable tools which can be used and operated independently from any changes in position of the tool and which can be easily transferred between tools due to its articulated fastening device.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: March 20, 1990
    Assignee: La Maison Dentaire S.A.
    Inventor: Leon Jaccard
  • Patent number: 4888875
    Abstract: An instrument used to level equipment, particularly useful with exercise equipment like a barbell. In preferred form, the instrument includes a tapered tube filled with a liquid and having a ball therein indicating level. The tube is supported and is magnetically coupled to a metal surface such as the barbell. The use of the leveling instrument with a barbell facilitates weight training in that the bar may be maintained level and the muscles on each side of the body developed equally.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: December 26, 1989
    Inventor: John M. Strother
  • Patent number: 4696111
    Abstract: A viewing device to assist a golfer or the like in assessing transverse inclination of terrain along his sight line, including a base assembly adapted for attachment to a cap, hat or headpiece worn by the golfer or the like, a vertical plumb element pivoted to the base assembly about an axis parallel to the wearer's sight line of the terrain and a horizontal sighting element fixed perpendicularly along its length permitting the wearer to view seleccted terrain relative to the horizontal sighting element and rapidly assess its transverse inclination. With the base assembly secured to the bill of a cap or the like, a viewing frame surrounds the vertical plumb element and horizontal sighting element while including means for retaining both the viewing frame and vertical plumb element and horizontal sighting element out of the wearer's sight line when desired.
    Type: Grant
    Filed: May 5, 1986
    Date of Patent: September 29, 1987
    Inventor: Richard O. Gardner
  • Patent number: 4656749
    Abstract: A hand drill level is provided and consists of a mounting frame removably mountable to top surface of a shank portion of a hand drill and a vial that has a bubble chamber operably affixed within the mounting frame and parallel to a longitudinal axis of a drill bit to aid in drilling holes straight through a work piece.
    Type: Grant
    Filed: January 22, 1986
    Date of Patent: April 14, 1987
    Inventors: Donnie L. Ashley, George Spector
  • Patent number: 4641433
    Abstract: A fastening system in one embodiment comprising a support member and a plurality of leaves stacked together and affixed to the support member. At least a portion of one side of each leaf is covered with an adhesive material. A connecting member having a first free end has its second affixed to the support member. Means are also provided for affixing the first free end of the connecting member to an elongate member.Another embodiment of the present fastening system comprises a suction cup, a connecting member having a first free end and whose second end is affixed to the suction cup, and means for affixing the first free end of the connecting member to an elongate member.
    Type: Grant
    Filed: December 24, 1985
    Date of Patent: February 10, 1987
    Inventor: Peter Sing
  • Patent number: 4635376
    Abstract: Angle measuring apparatus, particularly for measuring doctor blade angle, comprises an elongate support (1); a horizontal level detecting device (4) pivotally connected to an upper surface of the support (1); and means (5, 8) for determining the angle between the support (1) and the horizontal level detecting device (4). An under surface of the support (1) includes a pair of projecting feet (13, 14), the arrangement being such that when the apparatus is placed on a cylinder, the upper surface of the support (1) is substantially parallel with a chord of the cylinder.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: January 13, 1987
    Assignee: Crosfield Electronics Limited
    Inventor: Andrew R. Fry
  • Patent number: 4593475
    Abstract: A level is disclosed having a body with two working surfaces. One of the working surfaces is formed on a magnetic rubber strip. The magnet has a longitudinal groove formed in the working surface which can receive a corner or a side of a pipe to be leveled or plumbed, thus preventing the level from moving laterally on the pipe, corner or projection.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: June 10, 1986
    Assignee: Great Neck Saw Manufacturing, Inc.
    Inventor: Daniel J. Mayes
  • Patent number: 4580350
    Abstract: Apparatus for promoting straight golf ball flight paths by promoting in flight rotation of a golf ball along its horizontal axis by assuring horizontal alignment of parallel grooves of the face of a golf club as the club strikes a golf ball comprising a frame having an alignment ridge for insertion into one of said parallel grooves, means for securing level indication means to the frame in parallel alignment to the alignment ridge, level indication means, and means for temporarily attaching said frame to the face of a golf club in such a manner that said level indicator indicates the horizontal alignment of said parallel grooves.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: April 8, 1986
    Inventor: Fred T. Fincher
  • Patent number: 4546549
    Abstract: A spirit leveling attachment for a power tool which is universally adjustable relative to the tool so as to enable the tool to be located in anyone of a number of selected positions of angularity and maintained in such position by visual reference to the spirit level. A magnetized support member having a partly spherical recess is mounted on the tool. The spirit level is formed with a partly spherical body member which is accommodated in the recess of the magnetized support member, enabling the body member to be magnetically retained in the recess in selected positions of adjustment relative to the support member.
    Type: Grant
    Filed: July 5, 1984
    Date of Patent: October 15, 1985
    Inventor: Terry Duperon
  • Patent number: 4476635
    Abstract: A gravitational protractor and measuring tape for determining the distance between respective conduit ends residing at differential elevations.
    Type: Grant
    Filed: February 25, 1982
    Date of Patent: October 16, 1984
    Inventor: George V. Hart
  • Patent number: 4404752
    Abstract: The invention is in the field of compass course following and comprises a means and method of mounting a compass directly on a map with a North-South reference line and following a course on the map directly once the compass needle is aligned with North. In all references to the direction "North" throughout this document magnetic North only shall apply.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: September 20, 1983
    Inventor: John W. Hanna
  • Patent number: 4393599
    Abstract: A leveling mechanism having bubble levels is removably attachable to a hand-held power drill. In one form, the leveling mechanism includes a drive shaft coupled between the drill and a chuck for rotation therewith. The drive shaft is rotatably mounted to a support, and the support is held stationary relative to the drill housing. The support may include first and second surfaces parallel and perpendicular, respectively, to the axis of rotation of the drive shaft for supporting first and second bubble levels. Alternatively, the support may include a support plate and a level plate hinged thereto for supporting one or more bubble levels; a grooved alignment plate engages the edges of the support plate and level plate for maintaining a predetermined angular relationship therebetween. In another form, the leveling mechanism is removably attached to the front face of the drill housing.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: July 19, 1983
    Assignee: John W. Sterrenberg
    Inventor: John W. Sterrenberg
  • Patent number: 4309828
    Abstract: A device for attaching a compass assembly to a vehicle body comprising a support rod provided with a ball member on its end, said rod being disposed vertically on the upper surface of the housing of said magnetic needle assembly.
    Type: Grant
    Filed: September 6, 1979
    Date of Patent: January 12, 1982
    Inventor: Shoji Sakamoto
  • Patent number: 4229885
    Abstract: A level for use in taking level readings on vertical and horizontal surfaces. The level has a case within which an enclosure with some instrumentation is disposed in a vertical position for taking level readings on vertical or horizontal surfaces. The instrumentation has a gravity-responsive weight pendulum mounted on a knife-edge pivot supported on an edge contact with its pivot. The pendulum has an actuating pivot having two flat sides fixed at an upper end for engaging two knife-edge pivots on a pointer which is actuated laterally by the pendulum proportionately to the extent a surface being read is out of the vertical or horizontal. The pointer is likewise pivotally supported on an edge supported on a supporting knife-edge pivot.
    Type: Grant
    Filed: March 21, 1979
    Date of Patent: October 28, 1980
    Inventor: Chuang-Min Chiou
  • Patent number: 4208802
    Abstract: A mounting plate is attached to a picture frame and holds a removable liquid bubble level. The plate can be sheared by pushing the frame toward the wall. A card is provided for packaging several mounting plates with a single bubble level.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: June 24, 1980
    Inventor: Stephen R. Berndt
  • Patent number: 4169320
    Abstract: A device providing a movable reference point for use in leveling objects such as house trailers and the like which extend over large areas. The device includes a reservoir which is carried on a stand that has a plurality of tubes extending out the bottom thereof. The tubes have magnets carried on the outer ends thereof for readily attaching to the object to be leveled. A screw jack is connected to the reservoir for raising and lowering the reservoir and the level of the liquid therein so as to set the liquid level in the tubes to a desired height. The tubes can be moved around the trailer without affecting the reference point.
    Type: Grant
    Filed: November 10, 1977
    Date of Patent: October 2, 1979
    Inventor: Lewis L. Bennett
  • Patent number: 4168578
    Abstract: A four way corner level is provided with a first run, a second run extending perpendicular to the first run, and a third run terminating in a handle member extending from the external apex of the first and second runs. Vertical and horizontal level means are provided on the external sides of the first and second runs and magnetic attaching means may be provided on the internal sides of the first and second runs.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: September 25, 1979
    Assignee: Vy-Dawn, Incorporated
    Inventor: Robert H. VanderWerf
  • Patent number: 4126944
    Abstract: In abstract a preferred embodiment of the present invention is a disposable spirit level adapted to be removably attached to a switch plate or receptacle cover whereby the same may be easily leveled and aligned during installation. The disposable level of the present invention incorporates a weak cement bond to removably secure the same to the switch plate or receptacle cover until such time as the switch plate or receptacle cover is installed and properly aligned.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: November 28, 1978
    Inventor: David H. Burkhart
  • Patent number: 4125944
    Abstract: A small, pocket level that can be readily and easily attached to any portable power tool so that the tool is operated on an accurately horizontal and vertical axis; the level including a transparent glass containing a fluid and an air bubble space, the glass being of cross-shape, bowed slightly upwardly at its center so to obtain a level position along two directional axes at right angle to each other; the level being attachable to the tool by a permanent magnet base.
    Type: Grant
    Filed: August 10, 1976
    Date of Patent: November 21, 1978
    Inventors: Philip Esposito, George Spector
  • Patent number: 4100681
    Abstract: An inexpensive spirit level having means for easy attachment to upper surface portions of picture frames or the like. The device comprises a transparent tape having blister-like cavities at regular intervals, a base tape affixed in face-to-face relation against one side of the transparent tape and having a pressure sensitive adhesive on the outside for attachment to a surface portion of a frame, and a liquid partially filling said cavities. Eash blister cavity has a bubble corresponding to the unfilled space which bubbles will move along the curvature of the blister, thereby indicating the relative position of the device with respect to a horizontal plane. Suitable markings on the transparent tape are provided to facilitate reading level position with respect to the horizontal plane.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: July 18, 1978
    Inventor: Bruce L. Hollander
  • Patent number: 4090306
    Abstract: A level indicator which features a pendulum-style magnified dial and a versatile magnetic swing plate or base. The swing plate is pivotally and laterally moveable with respect to the main casing of the level indicator to provide a more stable and accurate adherence to the surface whose alignment is being checked. The magnetic surface of the swing plate cooperates with a coplanar magnetic face of a fixed-position heel plate to add further stability and accuracy. The level indicator features a hairline-bearing suspended mass in the form of a magnifying lens, the hairline being preferably scribed along its outer convex surface to eliminate parallax errors. The indicia-bearing dial plate may be edgewise illuminated by one or two light sources internally positioned and powered. Two substantially identical viewing faces are preferably provided to increase versatility.
    Type: Grant
    Filed: January 28, 1977
    Date of Patent: May 23, 1978
    Inventor: Donald R. Darden
  • Patent number: 3978591
    Abstract: A compass, in particular one intended to be used for track finding on skis or in track finding races, which is affixed to the user's hand with a strap, and which compass is eminently convenient to use in said circumstances. The invention is particularly characterized in that the strap, one end of which has been affixed to the compass, passes slidably through an aperture in the base plate of the compass, forming an adjustable thumb loop, and that the part of the strap protruding from the aperture has a length enabling the strap to be wound around the wrist, and that the end portion of the strap can be secured in connection with compass or with the strap by buckle or equivalent so that the compass will be positioned upon the upper edge of the hand, adjacent to the thumb groin. The buckle or equivalent may be attached to the thumb loop.
    Type: Grant
    Filed: October 7, 1974
    Date of Patent: September 7, 1976
    Inventor: Erkki Kalle Jaaskelainen
  • Patent number: D301017
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: May 9, 1989
    Assignee: Instrumentverken AB
    Inventors: Bertil Norman, Arne Yngstrom