Tools – Hammer
Reexamination Certificate
2000-09-08
2001-11-13
Smith, James G. (Department: 3723)
Tools
Hammer
C081S022000
Reexamination Certificate
active
06314837
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a hammer protecting system and more particularly pertains to a protective sleeve which snugly encases a portion of a hammer in order to protect the hammer against breaking, and a manner of installing the protective sleeve with only minimal effort.
2. Description of the Prior Art
It is well known that hammers occasionally break during usage. In particular, the narrowing or the handle where it is joined with the hammer head creates a weak structural point. In addition, undamped vibrations serve to weaken the hammer in time. When a hammer breaks, sending the hammer head flying, damage to the surroundings or injury to a worker will almost certainly occur.
The use of hammer protective devices is known in the prior art. More specifically, hammer protective devices and schemes heretofore devised and utilized for the purpose of damping vibrations 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. Nos. 3,968,843 to Shotwell; 5,289,742 to Vaughan, Jr.; and 5,490,437 to Herbert.
While these devices fulfill their respective, particular objective and requirements, the aforementioned patents do not describe an effective protective device for hammers for preventing a hammer from breaking from impacts, which may be installed with great ease.
In this respect, the hammer protecting system 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 preventing a hammer from breaking from impacts.
Therefore, it can be appreciated that there exists a continuing need for new and improved hammer protective systems which can be used for preventing a hammer from breaking from impacts. 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 hammers now present in the prior art, the present invention provides an improved hammer protecting system. As such, the general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new and improved hammer protecting system which has all the advantages of the prior art and none of the disadvantages.
To attain this, the present invention is used in conjunction with a hammer having a wooden handle portion and a head portion. The head portion has a downwardly depending shank portion for receiving an upper end of the wooden handle portion therein to facilitate securement of the wooden handle portion to the head portion. The invention comprises a diametrically expandable rubber sheath having a generally cylindrical configuration. The rubber sheath has a relaxed diameter which is slightly less than a diameter of the handle portion. The rubber sheath has an open upper end and an open lower end. The rubber sheath includes an embedded pull cord assembly disposed interiorly thereof. The embedded pull cord assembly arranged in a coil type arrangement, and is rigid, resisting compression and thus holding the sheath in an expanded position. The embedded pull cord assembly has a central lumen which is larger in diameter than the handle portion. The embedded pull cord assembly thereby holds the diameter of the rubber sheath greater than the diameter of the handle portion prior to installation of the protective device wherein the rubber sheath is positioned over the handle portion and the shank portion with the handle portion extending through the central lumen. The pull cord has a free upper end that extends lengthwise within the central lumen and terminates outwardly of the open lower end thereof such that pulling on the free upper end will systematically remove the pull cord from within the rubber sheath thereby allowing the rubber sheath to relax and snugly engage the handle portion and the shank portion of the hammer.
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 hammer protecting system which has all the advantages of the prior art hammer protecting systems and none of the disadvantages.
It is another object of the present invention to provide a new and improved hammer protecting system which may be easily and efficiently manufactured and marketed.
It is a further object of the present invention to provide a new and improved hammer protecting system which is of durable and reliable construction.
An even further object of the present invention is to provide a new and improved hammer protecting system 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 protective device for hammers economically available to the buying public.
Even still another object of the present invention is to provide a new and improved hammer protecting system for preventing a hammer from breaking from impacts.
Lastly, it is an object of the present invention to provide a new and improved hammer protecting system including a rubber sheath which is initially held in an expanded position by a coil assembly prior to installation, wherein the coil is unraveled to allow the rubber sheath to relax and seat firmly upon the hammer.
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: 4172483 (1979-10-01), Bereskin
patent: 4352381 (1982-10-01), Provi
Golstein Law Offices, P.C
Smith James G.
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