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: A bubble type level for determining the orientation of a structure, such as an elongate pipe, that includes several differently oriented bubble vials that are secured within the level body in a manner such that if the bubble vials become broken or otherwise damaged, they can be easily replaced and the level need not be discarded. The bubble type level of the invention also includes a body portion having top and bottom rails that are chamfered in a manner to automatically align the level with the longitudinal axis of the pipe when the level is connected to the side of the pipe. The level further includes a plurality of longitudinally spaced magnets that are connected to the bottom rail of the level and can be used to releasably interconnect the level with a length of ferrous pipe.

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 connector mechanism that enables the level to be removably interconnected with the structure to be leveled. 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: A bubble type level for determining the orientation of a structure that includes a plurality of differently oriented 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 bubble type level of the invention also includes a novel connector mechanism that enables the level to be removably interconnected with the structure to be leveled. The level further includes a plurality of longitudinally spaced magnets that are connected to the bottom surface of the level and a bulls-eye level that is mounted on the top surface of the level body.

Abstract: A removable laser base for a bubble level that includes a body, a laser beam generator, and a removable securement. The body has a flat top surface that the level is secured to and a bottom surface that is flat and parallel to the top surface. A laser diode mounted in a module emits a visible laser beam upon application of power from a battery that is controlled by a switch. The module, batteries, and switch are mounted in a through bore in the body. The laser base is removably secured to the bubble level by any manner appropriate to the shape of the level. In one such securement, the level has a T-shaped cross-section and the body has a complementary slot into which the level slides. When the level reference surface abuts the top surface of the laser base, a thumb screw is tightened to frictionally secure the level in the base.

Abstract: The level with a generally u-shaped or round, rigid frame. The outer surface is comprised of a number of planar reference faces that are at different fixed angles to a spirit vial mounted in the frame. Optionally, magnets are embedded in the reference faces. Optionally, there are grooves in the reference faces.

Abstract: The level with a generally u-shaped or round, rigid frame. The outer surface is comprised of a number of planar reference faces that are at different fixed angles to a spirit vial mounted in the frame. Optionally, magnets are embedded in the reference faces. Optionally, there are grooves in the reference faces.