Abstract: A conduit level for determination of conduit bend angles includes a frame supporting a plurality of bubble levels at various angular orientations. The frame has first and second opposite sides, a bottom edge extending along an axis, a top edge, and a front end edge connecting the bottom edge and the top edge. Each of the bubble level sensors has a unique angular orientation relative to the axis of the bottom edge of the frame. The frame includes at least one bubble viewing slot allowing a user to view the plurality of bubble levels in edgewise viewing directions facing the top edge and the front edge of the frame, and a plurality of bubble viewing windows allowing the user to view the plurality of bubble levels in a sidewise viewing direction facing at least one of the sides of the frame.

Abstract: A tool, system, and method are disclosed for locating a hidden stud and identifying angles on a finished wall. The tool includes an elongated housing, at least one magnet, and at least one level. The housing has a generally planar contact surface disposed opposite a viewing surface. The at least one magnet is secured to the housing such that a magnetic field from the at least one magnet extends from the contact surface. The level is secured to the housing such that the level is viewable from the viewing surface. The at least one magnet, the level, and the housing are sized relative to each other such that a magnetic attraction between the at least one magnet and a metallic element in the wall is sufficient to maintain the tool on the wall without external support.

Abstract: A level with a clip and removable end cap is provided. The end cap includes an outer member and locking member received within a clip that is affixed inside an end of the level. The locking member is inserted into the outer member pushing a moveable portion of the outer member into an engagement, such as a shearing engagement, that holds the end cap assembly in place relative to the level body. The clip includes a projection that interfaces with an aperture in the level frame.

Abstract: A leveling instrument includes a generally elongate carrier defining a carrier axis. A first liquid-filled bubble vial is mounted on the carrier and defines a first vial axis and an internal generally barrel-shaped surface of revolution about the first vial axis formed by a curve having a predetermined curvature to exhibit a first sensitivity. A second liquid-filled bubble vial defines a second vial axis and has a generally barrel-shaped surface of revolution about the second vial axis and formed by a curve having a curvature less pronounced than the predetermined curvature of the first vial to exhibit a second sensitivity greater than the first sensitivity, the first and second vial axes being generally parallel to each other. If the vials are curved they are similarly oriented and have different curvatures to exhibit different sensitivities. A method of using the multi-vial leveling instrument is described.

Abstract: A tool, such as a level, with magnets embedded in a working surface is provided. For example, the magnets assist in coupling the level to magnetic workpieces. The magnets are placed in a chamber with a floor having a periphery and internal walls extending from the floor periphery. Flanges extend from internal wall of the chamber toward a central axis or point and partially further define the chamber volume. Flanges may be created by depressing surface of the level near the chamber, thus deforming the level body surface to create a channel and a flange from the material displaced from the channel.

Abstract: An adherent level. The level includes a level body. At least one level detector is coupled to the level body. A foam tape includes an inner surface and an outer surface. The inner surface is adhered to the level body. The outer surface includes a plurality of micro suction cups. The at least one level detector is operable to display a level reading of a surface when the level body is adhered to the surface by the plurality of micro suction cups.

Abstract: A level vial includes an elongated vial liquid housing extending along an axis of elongation and containing a liquid and a bubble therein, an outer support body supporting the elongated vial liquid housing, the outer support body being integral with the elongated vial liquid housing, and having an inner surface at least partially surrounding the elongated vial liquid housing, and an open space between the inner surface and the elongated vial liquid housing. The elongated vial liquid housing is shaped such that a horizontal orientation of the axis of elongation causes the liquid to flow such that the bubble floats to a center of the elongated vial liquid housing. The elongated vial liquid housing and the open space are in an outwardly exposed and unobstructed configuration relative to a front face of the level vial.

Abstract: A slidable apparatus with adjustable length for aligning and marking spaced apart points for fastening means, such as nails and hooks, for hanging objects is disclosed. The apparatus comprises at least two elongate members and at least one bubble level. The elongate members are slidable relative thereto, each having a first end and a second end. The first ends each have a stopper to stop sliding the elongate members when the apparatus is at its maximum length. The second ends each have a marking member. The at least one bubble level either has a fixed position or adjustable positions to allow rotating of the at least one bubble level.

Abstract: A level for determining the orientation of a structure that includes a plurality of bubble vials that are secured within the level body in a manner such that, if any one of the bubble vials become broken or otherwise damaged, it can be easily replaced and the level need not be discarded. The body of the level of the invention includes an upper surface having a pair of viewing openings for viewing certain of the bubble vials and a lower surface having a pair of viewing openings for viewing certain of the bubble vials. The level also includes a bulls-eye level that is mounted on the upper surface of the level body and a plurality of magnets that are mounted on the lower surface of the level body for engagement with the structure to be oriented.

Abstract: A specially designed welder's work piece positioning and leveling tool that includes a plurality of strategically oriented work piece positioning surfaces provided on the tool body for holding and correctly positioning work pieces to be welded together. The tool also includes a plurality of differently oriented bubble vials that are secured within the tool body in a manner such that, if any one of the bubble vials become broken, or otherwise damaged, it can be easily replaced and the level need not be discarded.

Abstract: Provided are examples of a hands-free level to quickly, accurately, and efficiency level and plumb a wide range of objects regardless of shape. The level includes a stationary component, an adjustable component, a level device attached to the stationary component/adjustable component, and a cord. The cord includes a J-shaped terminus that abuts the adjustable component. Advancing the cord urges the adjustable component towards the stationary component. Complementary locking teeth on the cord and stationary component lock the adjustable component in place and clamps the hands-free level to an object. This lets a user use two hands to hold and move the object while simultaneously checking the object for plumb and/or level.

Abstract: A bubble type level for determining the orientation of a structure that includes first and second differently oriented bubble vials that are secured within the level body in a manner such that if either of the bubble vials become broken or otherwise damaged, it can be easily replaced and the level need not be discarded. The bubble type level of the invention also includes a novel thumb screw type connector mechanism that enables the level to be removably interconnected with the structures to be leveled, such as conduit. The level further includes a plurality of longitudinally spaced magnets that are connected to various surfaces of the level and a bulls-eye level that is mounted on the top surface of the level body.

Abstract: The invention is a method and device for measuring the slope of a surface. The device includes a frame, one or more clear tubes containing a liquid and a gas bubble, and an attachment facilitating attachment to a sloped surface. The attachment may be a removable strap or magnets. The tubes are fixed at angles greater than zero degrees and less than ninety degrees relative to the bottom surface of the frame and a visual indication of the angle of each tube is present on the device. The device is designed to be placed parallel to the slope of a sloped surface and the slope of the surface can then be increased or decreased such that the gas bubble will become centered within the tube when the angle of slope conforms to a desired standard.

Abstract: This invention relates to an extendable level device wherein the user may selectively reposition a level portion relative to a frame portion between a compact arrangement and an extended arrangement, and anywhere in between with relative ease and accuracy. In a preferred embodiment of the present invention, the extendable level device is comprised of a level portion that slides in and out of a housing frame, and a locking device for temporarily securing said level portion in a desired position relative to the housing frame. The interplay of the level portion and the housing frame enables the user to both (i) use, transport and/or store the device in its compact arrangement, and (ii) create a longer level device, by sliding the level portion partially out of said frame portion, when the user must level or plum a span that exceeds the length of traditional levels.

Abstract: A multi-axis level is disclosed having a body member with two side members forming a right angle therebetween. The body has a length extending in a longitudinal direction. The multi-axis level also includes a bubble housing coupled to the body member. One or more bull's eye bubble levels are coupled to the bubble housing, which is oriented in a plane normal to the longitudinal direction. Additionally, a tubular bubble level is coupled to the bubble housing. A tube of the tubular bubble level has a length that is oriented parallel to the longitudinal direction.

Abstract: A device for determining level of a surface, the device comprising a plurality of level vials configured to indicate orientation of the device, the plurality of level vials disposed at distinct locations on the device. The device including a radius bottom formed in an object contact surface at substantially the latitudinal center of the contact surface and extending longitudinally the length of the surface. The device further including a joint recess disposed centrally along the longitudinal axis of the device and extending latitudinally across the device. The device also includes one or more user controllable light sources coupled to the plurality of level vials for illuminating the level vials.

Abstract: A carpenter's level with an integral bubble vial illumination system is herein disclosed. A plurality of level vials is illuminated by lamps located at either end to light the vials internally. The vials are arranged in close parallel pairs having a blackout panel between for enhanced accurate viewing of the bubbles from either side of the level. Power to the lamps is supplied by a battery which is charged by solar cells, thereby reducing battery changes. The level is equipped with a graduated slope indicator port located on the top surface of the level to easily measure sloped surfaces. An auto-off feature will also be integrated to save power.

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. An integral inner vertical wall extends between the top and bottom walls thereby reinforcing the frame along the frame length. The inventive level further preferably includes an external brace reinforcing a central frame portion weakened by forming the topnotch. The external brace includes first and second plate members each against one of the sidewalls about the notch-defining bottom and side edges and each substantially spanning a respective one of the sidewalls. A fastening member extending through the sidewalls and pulling the plate members toward each other to sandwich the sidewalls therebetween, thereby reinforcing a central frame portion weakened by forming the topnotch.

Abstract: The present invention relates to a multi-function electrician level. In one embodiment, the body has a first face enabling the tool to level either a switch or a dual three-prong outlet. A second face can be used to level a rectangular outlet, such as a GFCI outlet. In this regard, the second face can have depressions providing clearance to reset buttons. Both faces have walls that mate with the respective type of outlet. The tool can also be used as a traditional level. Levels are provided on two perpendicular surfaces, and are observable through both faces. A laser projector can be provided for fanning a leveling line outward from the tool. A light such as a LED light can also be provided for use as a flashlight. The light can also illuminate the levels.

Abstract: A plumb post apparatus for retaining a mason's line for laying a brick course, the apparatus comprising two vertical posts each having two legs of adjustable length that pivot outward to form stabilizers. The legs are secured to adjacent sides of the posts, thus extending at right angles to each other. The posts can be secured via spikes through base plates at the bottoms of the posts and the legs are secured in place via stakes that are pivotally secured to the ends of the legs and which can be driven into a ground surface. Levels on adjacent sides of the posts indicate when the apparatus is in level disposition.

Abstract: A spirit level including a profiled body with a bottom wall which makes available a first outer measurement surface, a head wall facing this bottom wall, with a second outer surface, which runs at least in sections parallel to the measurement surface, and side walls which connect the bottom wall to the head wall, and which present a first or second outer lateral face. The profiled body presents at least one bubble vial body, whose bubble vial can be detected optically via a notch which passes through the head wall.

Abstract: A level 11 is provided comprising a base 1 having a top reference edge 2 and recession 3 wherein a slidable member 8 fits within the recession 3 of the base 1 and is slidable to extend the top reference edge 2 of the base for multiple lengths. Further embodiments of the present invention provide a level 11 having attachment means to level at various angles and additional lengths.

Abstract: A comb system for creating or replicating a haircut. The comb system has a comb that measures different angels via level and measuring attachments that can be affixed or movable about the comb so user can select the desired angle for an accurate cut.

Abstract: A folding carpenter's level is disclosed which has two level segments, each of which has a smooth flat top and bottom surface, that are hingeably attached at a distal tip by means of a recessed, flat hinging means. The two level segments can be rotated laterally in the plane of the level so as to be oriented with respect to each other at angles of from 0 to 180 degrees, thus effectively doubling the length of the level. At least one of the level segments has one or more tubular spirit vials attached to the segment for measuring the levelness of the top surface with respect to horizontal. The level segments usually have additional tubular spirit vials oriented vertically to allow the tool to be used to measure plumb. Such tubular spirit vials are generally located in apertures so that the spirit bubble in the vials can be seen from the front or the back of the folding level.

Abstract: A twin level assembly including two levels, wherein one of the two levels also contains an indicating device for performing a separate function, is disclosed. The twin level assembly comprises a first level and a second level that is selectively receivable into the first level through an opening in an end cap and into a receptacle of the first level. The second level is held in the first level by a retention mechanism. The first level and the second level each have at least one bubble vial for visually displaying level indications, while the indicating device in the second level is a type of stud sensor, laser pointer, metal detector, wire detector, or a sonic measurement device.

Abstract: Apparatus for installing conduit which includes an elongated transparent vial having a geometric axis and containing a liquid defining a bubble therein whereby when the axis is horizontal the bubble is centered with respect to the elongated transparent vial and an elongated housing having a geometric axis.

Abstract: A level for measuring, including a level body having a recess, a vial positioned within the recess and secured to the level body, and a resilient member positioned between the vial and the level body to act as a resilient backer to the vial during the positioning of the vial. Also, a method of installing a vial in a level, a method of measuring the angle of an elongated member having a convex, transverse cross-section, and a level for measuring having a vial assembly that is rotatably positioned within the level body.

Abstract: A twin level assembly including two levels, wherein one of the two levels also contains an indicating device for performing a separate function, is disclosed. The twin level assembly comprises a first level and a second level that is selectively receivable into the first level through an opening in an end cap and into a receptacle of the first level. The second level is held in the first level by a retention mechanism. The first level and the second level each have at least one bubble vial for visually displaying level indications, while the indicating device in the second level is a type of stud sensor, laser pointer, metal detector, wire detector, or a sonic measurement device.

Abstract: A pocket level having a detachable line level whose bubble vial doubles as the pocket level's horizontal bubble vial, and an angle finder for enabling the determination of the angle of an inclined surface which includes a bubble vial housed in a wheel rim directly rotated by a user applying a rotation force to a portion of its exterior non-slip circumferential wheel rim surface preferably accessible via a throughgoing cutout formed in the pocket level's upper surface.

Abstract: 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-bubble deflects the beam toward the end of the vial, where a photo-electric device is positioned. The photo-electric device activates a sound emitter such as a buzzer. The function of the level being based on the optical interaction between a laser beam and the curvature of an air-bubble, it is highly accurate and consistent. It is applicable for vertical and horizontal settings, has an adjustable arm for secure attachment to structural frames or other objects. No direct eye and manual contact with the device is needed while in operation.

Abstract: Apparatus 10 discloses a handle 32 for manipulating the device and an extending rule portion 18 having a series of markings or measurements 26 embossed along its edge serving as a base of spacing measurement for a pivotally mounted swing arm 22 and a slide arm 24 perpendicularly attached thereto that may be adjusted to a desired distance. After a desired distance is set the swing arm 22 serves to maintain spacing and parallelism by having a bubble level 36 fabricated into each of its ends to test if the materials held flush are level. After correct measurements are made the apparatus 10 may then be used as a gauging tool for the quick and ready spacing and setting of materials afterwards.

Abstract: Hand tool (1) including a pair of retainer clips (7A,7B) for securing a cylindrical level vial (6) in a suitable recess (3), and method of assembly therefor.

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.

Abstract: 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. The inner cavity is substantially uniform in cross section throughout its length.

Abstract: A vial having an outer wall which is straight and cylindrical and a curved inner cavity. The inner cavity is curved in 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. The inner cavity is substantially uniform in cross section throughout its length.

Abstract: A level having a frame with a reference surface and a level sensor secured to the frame. The level includes one or more attachment devices that are detachably secured to the level. The one or more attachment devices may include a torpedo level, a second level sensor, a tape measure, a writing instrument, notepad, or other auxiliary device that may be used by a user of the level.

Abstract: A method and apparatus for leveling at least one output light beam in a construction tool. One embodiment of the apparatus includes a laser optical assembly for producing output light beams that define plumb, level, and right angle beams for use in construction applications. The optical assembly is mounted on an optical platform which permits tilting about “slip-stick” joints that define two perpendicular axes of rotation. Such joints allow the optical platform to change its angle of tilt in response to an applied torque and to maintain the changed angle of tilt until further torque is applied. Also, the “slip-stick” mechanism prevents substantial movement or oscillation of the optical platform in the absence of the applied torque. The embodiment further includes a sensor element for determining whether the output beams are level.

Abstract: A door jamb square made of two extensions, a vertical extension and a horizontal extension. Both extensions are provided with bubble spirit levels and are attached forming a right angle, that can be fit into the corner of a door jamb to square that door jamb. The door jamb square is secured to the door jamb using a nailing plate, web plate and a bolt. The web plate is placed within the webbing of the door jamb square, covered by the nailing plate. The web plate and nailing plate each have an aperture aligned and fitted with the bolt. Additional sheetrock screws are used to secure the other side of the nailing plate and door jamb assembly to the door jamb.

Abstract: There is shown a spirit level device having a basic body element and a bubble element which pivots around an axis in its inclination towards the basic body element. An adjusting bubble element is fixed at the basic body element so that the middle part thereof is aligned parallel to the axis. The basic body element has an essentially L-formed profile whereby the adjusting bubble element is on one side which is angled at 90° in respect of the angle side, and the pivotable bubble element is on the other side of the angle of the basic body element.

Abstract: A door jamb square made of two extensions, a vertical extension and a horizontal extension. Both extensions are provided with bubble spirit levels and are attached forming a right angle, that can be fit into the corner of a door jamb to square that door jamb. The door jamb square is secured to the door jamb using a nailing plate, web plate and a bolt. The web plate is placed within the webbing of the door jamb square, covered by the nailing plate. The web plate and nailing plate each have an aperture aligned and fitted with the bolt. Additional sheetrock screws are used to secure the other side of the nailing plate and door jamb assembly to the door jamb.

Abstract: A spirit level having a sub-assembly on the body. The sub-assembly has a vial holder having two spaced pockets. A curved vial having two ends received in the pockets and resilient ribs having a curve matched to the vial and engaging the vial to hold the vial in an adjusted position. Each vial can be adjusted relative to a separate vial holder and each vial holder/vial sub-assembly can be independently adjusted and set relative to an appropriate edge of the level. The vial snaps into a fixed receptacle on either side of the vial holder. One side of the holder is curved to match the curve of the vial to insure that the vial is properly positioned. The underside of the vial holder may be relieved to increase flexibility to make it easier to snap the vial into place.

Abstract: A new framing tool for aiding in the construction of a structure. The inventive device includes a member having a substantially straight base side edge, a handle side edge, and a pair of opposite end edges extending between the base side edge and the handle side edge. The base side edge has a plurality of slots extending between the first and second faces of the member. The slots are spaced apart from one another. A first slot is positioned adjacent one of the end edges, while a second slot is positioned adjacent another of the end edges. Third and fourth slots are positioned between the first and second slots.

Abstract: This invention relates to an extendable level which, by means of two slidable extension members on a central body, can more than double its collapsible length. The invention comprises a device which can lock the level in any length from fully collapsed to fully extended. An attachment is provided which can convert the invented level into a large carpenter's square. Further, the extension level, with a scale on its top edge, can measure inside lengths between opposing wall surfaces.

Abstract: A compact level having two spirit level vials visible through either planar face of a triangular body. The vials and triangular body are configured to produce angles including 0.degree., 15.degree., 30.degree., 45.degree., and 60.degree. and their 90.degree. increments. Each of the three edges of the triangle maybe grooved to aid in leveling or truing pipes or other cylindrical objects. Extending along these grooves are magnets. The magnets may be flat or grooved and are used to aid the user when working with magnetic objects.

Abstract: The improved builder's level is used by carpenters, masons and the like for determining parallelism or perpendicularity with respect to a horizontal plane. The level has opposed depressed channels extending along its length, thereby permitting the level to be more securely gripped. The body of the level has interior ridges and an interior web for reinforcement and to properly position liquid-containing vials in such body.

Abstract: A combination level has a carrier forming two opposite parallel major surfaces. A tube level is mounted on one of the surfaces of the circular level and a circular is mounted on the other, opposite, surface. either one of the major surfaces can be used directly to abut against a work to be aligned or an additional, preferably elongate, member can be attached to the carrier and which abuts against the work. The carrier is mounted on the abutting member at known angular relationship or the carrier can be mounted for selected angular adjustments abutting to the abutting member, so that selected positioning of the tubular and circular levels are relative to each other on substantially horizontal planes where contact of the work, allows measurement of vertical alignment and plumb condition of the work.

Abstract: A light beam leveling device and method utilizable particularly in hemodynamic cardiac monitoring of patients in which a pressure transducer is required to be leveled with the tip of a catheter placed at the heart of a patient. The light beam device, preferably a laser, is placed at the transducer and is raised and lowered therewith relative to a reference point on the patient corresponding to the level of the tip of the catheter. When the laser beam is projected horizontally as established with associated bubble level means and is directed so as to cause a reflection directly at the reference point, the transducer is assured thereby to be at the level of the catheter tip in the patient. A transparent cylindrical bar at the tip of the laser through which the laser beam passes causes a line of light to be projected at right angles to the orientation of the bar. An associated protractor permits selection of the desired angle of orientation of the line of light projected from the laser.

Abstract: A spirit level vial construction provides various refinements in the structure and method of manufacture of vials used for the containment of fluid and adapted to be installed in spirit levels. The construction is particularly adapted to use with spherical vials, i. e., level vials having a concave spherical form within the sight glass portion containing the bubble, and adapted to provide level information relative to a planar surface. However, the present construction may also be used for tubular type level vials. Vials using the present construction are formed of plastic materials (particularly acrylics) for economy, and are preferably molded by an injection molding method in order to reduce substantially any warping or deformation during the molding process. Various clear or dyed fluids which are compatible with the plastics may be used, particularly mineral spirits.

Abstract: An alignment apparatus, comprising a set of tripods, having rollers on the base of each tripod, where the tripod replaces the wheel on a vehicle axle hub, and the vehicle is lowered so that the tripods support the weight of the vehicle. The tripods have a set of gauges, which display whether a gauge bar, on the base of the tripod, is level lengthwise, and from side to side. An adjustable gauge is used when the tripods are raised off of the ground, or when the steering wheel is used to turn the hubs, and the adjustable gauge is recalibrated to display the readings given by the other gauges when the tripods support the vehicle, or prior to the turning of the steering wheel. The information on the gauges is used to determine and correct camber, castor and toe in and toe out setting of the hubs, in relation to each other.

Abstract: A level vial assembly for use in a carpenter's or mason's level. The assembly includes a vial mounting subassembly to be mounted in a level body, consisting of at least a vial holding plate and one or more vials which are mountable therein, and one, or preferably two, bezel-lens subassemblies for protecting the vial. The vial is positioned in the mounting plate between a pair of oppositely directed notches, and is held in position by a tab which extends outwardly from the side of the vial and bears against the holding plate. The tab limits lateral movement of the vial in one direction. The holding plate is mountable within an aperture in the level body. The bezel-lens subassemblies are mountable in the level body aperture on opposite sides of the vials. One of the bezel-lens subassemblies includes a vial support portion adapted to bear against the vial to prevent lateral movement in another lateral direction.