Not Applicable
Not Applicable
Not Applicable
1. Field of the Invention
The present invention relates generally to tools used in the construction industry. More particularly, the invention concerns a specially designed five vial leveling tool that has replaceable bubble vials and includes strategically located magnets for removably affixing the tool to structures made of ferrous material.
2. Description of Related Art Including Information Disclosed Under 37 Crf 1.97 and 1.98
Bubble levels of various designs have been suggested in the past and are widely used by construction workers to determine the orientation of a particular structure or surface with respect to a reference axis. A typical bubble level generally comprises an elongated body that has a pair of opposing, generally parallel working surfaces and includes a plurality of openings having bubble vials permanently secured therein. The bubble vials are typically aligned in different directions relative to the working surfaces and function to indicate the orientation of a structure. For example, one vial may be aligned in a direction perpendicular to the working surfaces, another may be aligned in a direction parallel to the working surfaces and a third may be aligned in an angular direction. Typically, the vial contains a fluid and a bubble, and the user views the position of the bubble within the vial to determine the position of the tool relative to the working surfaces.
A novel and highly useful level construction is disclosed in U.S. Pat. No. 7,802,372 issued to the present inventor. This patent, which is entitled “Removable Laser Base Attachment for Bubble Levels”, describes 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.
It is an object of the present invention to provide a specially designed five vial leveling tool for use in accurately and expeditiously ensuring that a surface or angle is level or plumbed properly. The tool includes strategically located structure engaging surfaces and is uniquely provided with 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 is broken, or otherwise damaged, it can be easily replaced and the level need not be discarded.
Another object of the invention is to provide a tool of the character described in the preceding paragraph in which the bubble vials are securely held in position within threaded chambers formed in the level body by easily removable threaded cap screws.
Another object of the invention to provide a tool of the aforementioned character in which the body of the leveling tool is provided with a plurality of viewing openings that permit the user to clearly view selected bubble vials from both the top and the front of the tool.
Another object of the invention is to provide a tool of the class described that is provided with a plurality of spaced apart magnets that function to permit the tool to be conveniently, removably connected to any ferrous structure that is being oriented.
Another object of the invention is to provide a tool of the character described which includes a bulls-eye level that is mounted on the top of the tool body.
Yet another object of the invention is to provide a tool of the type described in which at least one of the surfaces of the tool includes a centrally disposed, generally V-shaped groove for longitudinally centering tubular shaped work pieces.
These and other objects of the invention will be realized by the level construction illustrated in the drawings and described in the paragraphs that follow.
Referring to the drawings and particularly to
Referring particularly to
A conventional first bubble vial, or spirit vial 36 is disposed within vial chamber 26 and is uniquely removably secured there within by a threaded vial securement connector that is threadably receivable within threaded opening 26a of vial chamber 26 so that vial 36 is disposed at an acute angle of approximately 22½ degrees with respect to top surface 18. The threaded vial securement connector, which is here provided in the form of a conventional cap screw 37 (
With the construction thus described, any one of the five bubble vials of the tool can be conveniently removed and replaced by simply removing the threaded cap screw from the threaded end portion of the vial chamber and then by removing the bubble vial from its chamber. Unlike the prior art levels, if a given bubble vial is broken, or otherwise damaged, it can be easily replaced and the level need not be discarded.
As illustrated in the drawings, the upper surface 18 of body 16 is provided with a first viewing window 46 for viewing the first bubble vial 36 and a second viewing window 48 for viewing the fifth bubble vial 44. The central portion 16a of body 16 is provided with a third viewing window 50 for also viewing the first bubble vial 36 and a fourth viewing window 52 for viewing the fifth bubble vial 44. Additionally, the central portion 16a of body 16 is provided with a fifth viewing window 54 for viewing the second bubble vial 38, a sixth viewing window 56 for viewing the third bubble vial 40 and a seventh viewing window 58 for viewing the fourth bubble vial 42. With this construction, the workman is accorded a clear view of the various bubble vials of the tool so that the various surfaces and angles of the work piece can be accurately and expeditiously leveled and plumbed in a manner well understood by those skilled in the art.
Turning now to
Having now described the invention in detail in accordance with the requirements of the patent statutes, those skilled in this art will have no difficulty in making changes and modifications in the individual parts or their relative assembly in order to meet specific requirements or conditions. Such changes and modifications may be made without departing from the scope and spirit of the invention, as set forth in the following claims.