An extendible or adjustable length level is provided. The level includes a frame, a slidable member, and a bushing. The slidable member is coupled to the frame and extends and retracts along the frame. The bushing is coupled to one of the frame or the slidable member and couples the frame and slidable member together.

A leveling rod attachment including a first telescopic assembly, a second telescopic assembly and a clamper assembly is disclosed herein. The first telescopic assembly includes vertical rods being slidably connected one to each other. Each of the vertical rods has measurement indicia. The second telescopic assembly includes horizontal rods being slidably connected one to each other. Each of the horizontal rods has measurement indicia. One of the horizontal rods has a bubble level mounted thereon. the clamper assembly includes a clamper and latches. The clamper is attached to the second telescopic assembly. The damper slidably mounts the second telescopic assembly to the first telescopic assembly. The latches secure length of the first telescopic assembly and length of the second telescopic assembly.

The invention is related to gages to measure incline angles of moving and immobile objects and can be used in incline angle gages in such transportation vehicles as airplanes and ships (if a phosphorus scale can be applied to a closed loop clear tube) as a standby device to display pitch and roll angles (FIG. 5, FIG. 6, FIG. 7, FIG. 8). The purpose of this invention is an effective measurement of incline angles in stationary and dynamic objects in a wide range (0°-180°, 0°-360°). Faster measurement is required to improve stated parameters of the general purpose liquid angle indicator. It is achieved because liquid, an air bubble or indicating ball within the semicircular and round clear tube, subjected to gravitational forces, can display measured angles relative to the scale on the graduated clear tube without being in a horizontal position.

The invention is related to gages to measure incline angles of moving and immobile objects and can be used in incline angle gages in such transportation vehicles as airplanes and ships (if a phosphorus scale can be applied to a closed loop clear tube) as a standby device to display pitch and roll angles (FIG. 5, FIG. 6, FIG. 7, FIG. 8). The purpose of this invention is an effective measurement of incline angles in stationary and dynamic objects in a wide range (0°-180°, 0°-360°). Faster measurement is required to improve stated parameters of the general purpose liquid angle indicator. It is achieved because liquid, an air bubble or indicating ball within the semicircular and round clear tube, subjected to gravitational forces, can display measured angles relative to the scale on the graduated clear tube without being in a horizontal position.

A level and level-straightedge system is provided. The level may include one or more slip-resistant structure. The slip-resistant structure may be a collar formed from a high friction polymer material that at least partially surrounds a level vial. The collar may be co-molded with the material of the vial surround. The level may be a relatively small level having a length less than 14 inches and may include a groove for receiving a straightedge. The groove design alone or in combination with the collar may allow for a relatively short level to support a relatively long straightedge.

A level and level-straightedge system is provided. The level may include one or more slip-resistant structure. The slip-resistant structure may be a collar formed from a high friction polymer material that at least partially surrounds a level vial. The collar may be co-molded with the material of the vial surround. The level may be a relatively small level having a length less than 14 inches and may include a groove for receiving a straightedge. The groove design alone or in combination with the collar may allow for a relatively short level to support a relatively long straightedge.

A level including a rotating level vial is provided. The level includes a locking mechanism that utilizes an actuator that engages a brake to lock the rotating vial into the desired position. The locking mechanism may include a spring element that is compressed by the actuator during locking, and the spring element in turn pushes against the brake facilitating control of the normal force that the brake applies to the vial surround of the rotating vial. The rotating level vial may engage the level body such that the rotating level vial is permitted to rotate 360 degrees in both the clockwise and counter clockwise directions.

A level including a rotating level vial is provided. The level includes a locking mechanism that utilizes an actuator that engages a brake to lock the rotating vial into the desired position. The locking mechanism may include a spring element that is compressed by the actuator during locking, and the spring element in turn pushes against the brake facilitating control of the normal force that the brake applies to the vial surround of the rotating vial. The rotating level vial may engage the level body such that the rotating level vial is permitted to rotate 360 degrees in both the clockwise and counter clockwise directions.

The present invention relates to a one-piece structure tool for squaring and leveling pipes and flanges, and verifying the measurements of the same. The tool is designed as both a measurement tool and a leveling tool. The tool comprises two graduated arms connected in a V-shape (i.e., acute angle), each arm has s horizontal vial(s) and vertical vial(s) for maintaining horizontal and vertical level of the flange. The graduations are used for verifying measurement of flanges and other piping elements. In various embodiments, the arms have a length of one, two, or four feet. The tool is designed to save time, effort, and money when squaring, leveling and measuring materials such as pipe flanges, pipe fittings, and pipe elements.

An instrument for determining level or plumb orientations includes an elongated body having a plurality of orientation measurement devices. Each of the orientation measurement devices can indicate either a level or plumb orientation depending on a position of the instrument. The orientation measurement devices each include a chamber having front and rear convex sides, a fluid contained in the chamber, and an air bubble floating in the fluid. The elongated body includes a set of first openings and a set of second openings. The orientation measurement devices are embedded into the elongated body through the first set of openings and the orientation measurement devices each include bubble therein viewable from the front and back of the elongated body. The bubble is also viewable from the top and bottom of the elongated body through the second set of openings.