Center line marking apparatus

Geometrical instruments – Straight-line light ray type – Alignment device

Reexamination Certificate

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Details

C033S227000, C033S370000, C033SDIG002, C269S006000

Reexamination Certificate

active

06438854

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to hole marking device for beams and more particularly pertains to a new center line marking apparatus for marking holes or bores in beams for running pipe or electrical wiring through the beams.
2. Description of the Prior Art
The use of hole marking device for beams is known in the prior art. More specifically, hole marking device for beams heretofore devised and utilized are known to consist basically of familiar, expected and obvious structural configurations, notwithstanding the myriad of designs encompassed by the crowded prior art which have been developed for the fulfillment of countless objectives and requirements.
Known prior art includes U.S. Pat. Nos. 5,367,779; 5,754,582; 5,505,000; 4,681,439; 5,394,616; and Des. 411,470.
While these devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not disclose a new center line marking apparatus. The inventive device includes a clamping assembly for clamping to a beam such as a joist; and also includes a first elongate support member being pivotally mounted to the clamping assembly; and further includes a laser marking assembly rotatably mounted to the elongate support member.
In these respects, the center line marking apparatus according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in so doing provides an apparatus primarily developed for the purpose of marking holes or bores in beams for running pipe or electrical wiring through the beams.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of hole marking device for beams now present in the prior art, the present invention provides a new center line marking apparatus construction wherein the same can be utilized for marking holes or bores in beams for running pipe or electrical wiring through the beams.
The general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new center line marking apparatus and method which has many of the advantages of the hole marking device for beams mentioned heretofore and many novel features that result in a new center line marking apparatus which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art hole marking device for beams, either alone or in any combination thereof.
To attain this, the present invention generally comprises a clamping assembly for clamping to a beam such as a joist; and also includes a first elongate support member being pivotally mounted to the clamping assembly; and further includes a laser marking assembly rotatably mounted to the elongate support member.
There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the invention that will be described hereinafter and which will form the subject matter of the claims appended hereto.
In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.
As such, those skilled in the art will appreciate that the conception, upon which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.
Further, the purpose of the foregoing abstract is to enable the U.S. Patent and Trademark Office and the public generally, and especially the scientists, engineers and practitioners in the art who are not familiar with patent or legal terms or phraseology, to determine quickly from a cursory inspection the nature and essence of the technical disclosure of the application. The abstract is neither intended to define the invention of the application, which is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.
It is therefore an object of the present invention to provide a new center line marking apparatus apparatus and method which has many of the advantages of the hole marking device for beams mentioned heretofore and many novel features that result in a new center line marking apparatus which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art hole marking device for beams, either alone or in any combination thereof.
It is another object of the present invention to provide a new center line marking apparatus which may be easily and efficiently manufactured and marketed.
It is a further object of the present invention to provide a new center line marking apparatus which is of a durable and reliable construction.
An even further object of the present invention is to provide a new center line marking apparatus which is susceptible of a low cost of manufacture with regard to both materials and labor, and which accordingly is then susceptible of low prices of sale to the consuming public, thereby making such center line marking apparatus economically available to the buying public.
Still yet another object of the present invention is to provide a new center line marking apparatus which provides in the apparatuses and methods of the prior art some of the advantages thereof, while simultaneously overcoming some of the disadvantages normally associated therewith.
Still another object of the present invention is to provide a new center line marking apparatus for marking holes or bores in beams for running pipe or electrical wiring through the beams.
Yet another object of the present invention is to provide a new center line marking apparatus which includes a clamping assembly for clamping to a beam such as a joist; and also includes a first elongate support member being pivotally mounted to the clamping assembly; and further includes a laser marking assembly rotatably mounted to the elongate support member.
Still yet another object of the present invention is to provide a new center line marking apparatus that effectively and efficiently marks where the holes should be drilled in beams for running pipes and wires therethrough.
Even still another object of the present invention is to provide a new center line marking apparatus that quickly and accurately marks where the holes should be drilled in the beams.
These together with other objects of the invention, along with the various features of novelty which characterize the invention, are pointed out with particularity in the claims annexed to and forming a part of this disclosure. For a better understanding of the invention, its operating advantages and the specific objects attained by its uses, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated preferred embodiments of the invention.


REFERENCES:
patent: 4580345 (1986-04-01), Andrew
patent: 4681439 (1987-07-01), Shoemaker
patent: 5367779 (1994-11-01), Lee
patent: 5394616 (1995-03-01), Claxton
patent: 5505000 (1996-04-01), Cooke
patent: 5754582 (1998-05-01), Dong
patent: D411470 (1999-06-01), Webb
patent: 6029964 (2000-02-01), Bohl
patent: 6052911 (2000-04-01), Davis
patent: 6240815 (2001-06-01), Huang
patent: 6338475 (2002-01-01), Ping
patent: 6346155 (2002-02-01), Fox, IV
patent: 6374507 (2002-04-01), Lehto

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