Implements or apparatus for applying pushing or pulling force – Method or apparatus for placement of conductive wire – Conduit snakes
Reexamination Certificate
2000-12-28
2001-09-04
Banks, Derris H. (Department: 3723)
Implements or apparatus for applying pushing or pulling force
Method or apparatus for placement of conductive wire
Conduit snakes
Reexamination Certificate
active
06283450
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a portable pulling iron and more particularly pertains to enabling cable to be extended through a conduit between manholes.
Most of the transit companies in the country are very old. Underground cable is installed through manholes and conduits. Most manholes were constructed with permanent pulling irons between 80 and 100 years ago. Today, most of these permanent pulling irons have decayed to the point where they are unusable. Thus, there is a need for replacement pulling irons which can accomplish these tasks.
The present invention seeks to provide a solution to the abovementioned problem by utilizing a portable pulling iron that can be installed on the floor or wall of the manhole for the attachment of a pulley so cable can be pulled through a conduit between two manholes.
The use of pulling devices is known in the prior art. More specifically, pulling devices heretofore devised and utilized for the purpose of pulling items through underground conduits 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.
By way of example, U.S. Pat. No. 4,432,663 to Lasak discloses a cable pulling eye for securing a cable for pulling through an underground conduit. U.S. Pat. No. 4,008,880 to Devis discloses a device for tightening and pulling a wire to facilitate the splicing of broken wires. U.S. Pat. No. 4,171,123 to Woelkers discloses a pulling device comprised of an elongated strip. U.S. Pat. No. 4,443,980 to Pennypacker discloses a pulling iron enclosure.
While these devices fulfill their respective, particular objective and requirements, these patents do not describe a portable pulling iron for enabling cables to be extended through a conduit between manholes.
In this respect, the portable pulling iron according to the present invention substantially departs from the conventional concepts and designs of the prior art, and in doing so provides an apparatus primarily developed for the purpose of enabling cable to be extended through a conduit between manholes.
Therefore, it can be appreciated that there exists a continuing need for a new and improved portable pulling iron which can be used for enabling cable to be extended through a conduit between manholes. In this regard, the present invention substantially fulfills this need.
SUMMARY OF THE INVENTION
In the view of the foregoing disadvantages inherent in the known types of pulling devices now present in the prior art, the present invention provides an improved portable pulling iron. As such, the general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new and improved portable pulling iron which has all the advantages of the prior art and none of the disadvantages.
To attain this, the present invention essentially comprises a base portion adapted for coupling with respect to a manhole. The base portion includes a pair of opposed vertically oriented segments. Each of the vertically oriented segments has an upper end and a lower end. The vertically oriented segments each have a pair of tabs extending outwardly from the lower ends thereof. Each of the tabs has an aperture therethrough. The upper ends have a horizontal plate extending therebetween. The horizontal plate has a central opening therethrough. The central opening has a support rod extending therein between the upper ends of the vertically oriented segments. An angle iron is secured to the horizontal plate of the base portion. The angle iron is parallel with the vertically oriented segments. A length of chain is provided having opposed free ends secured to the upper ends of the vertically oriented segments of the base portion.
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, of course, 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.
It is therefore an object of the present invention to provide a new and improved portable pulling iron which has all the advantages of the prior art photo albums and none of the disadvantages.
It is another object of the present invention to provide a new and improved portable pulling iron which may be easily and efficiently manufactured and marketed.
It is a further object of the present invention to provide a new and improved portable pulling iron which is of durable and reliable construction.
An even further object of the present invention is to provide a new and improved portable pulling iron 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 a portable pulling iron economically available to the buying public.
Even still another object of the present invention is to provide a new and improved portable pulling iron for enabling cable to be extended through a conduit between manholes.
Lastly, it is an object of the present invention to provide a new and improved portable pulling iron including a base portion adapted for coupling with respect to a manhole. The base portion includes a pair of opposed vertically oriented segments. Each of the vertically oriented segments has an upper end and a lower end. The vertically oriented segments each have a pair of tabs extending outwardly from the lower ends thereof. Each of the tabs has an aperture therethrough. The upper ends have a horizontal plate extending therebetween. The horizontal plate has a central opening therethrough. The central opening has a support rod extending therein between the upper ends of the vertically oriented segments. An angle iron is secured to the horizontal plate of the base portion. The angle iron is parallel with the vertically oriented segments. A length of chain is provided having opposed free ends secured to the upper ends of the vertically oriented segments of the base portion.
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 had to the accompanying drawings and descriptive matter in which there is illustrated preferred embodiments of the invention.
REFERENCES:
patent: 1266128 (1918-05-01), Kelly
patent: 2199533 (1940-05-01), Wuellner
patent: 3916590 (1975-11-01), Miller
patent: 4171123 (1979-10-01), Woelkers
patent: 4907782 (1990-03-01), Hoekstra
patent: 6193217 (2001-02-01), Zimmer
Banks Derris H.
Goldstein Law Offices P.C
Wilson Lee
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