Abrading – Work holder – Clamp
Reexamination Certificate
1999-05-20
2001-04-17
Eley, Timothy V. (Department: 3723)
Abrading
Work holder
Clamp
C451S491000
Reexamination Certificate
active
06217428
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to grinding disc holders and more particularly pertains to a new grinding disc holder for holding and dispensing paper backed abrasive grinding discs.
2. Description of the Prior Art
The use of grinding disc holders is known in the prior art. More specifically, grinding disc holders 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. 4,294,357; 4,875,609; 4,926,722; 5,454,551; Des. 387,943; and 3,096,975 which are all incorporated by reference herein.
While these devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not disclose a new grinding disc holder. The inventive device includes a base plate and a top plate spaced above the base plate. A spaced apart pair of support rods are extended between the base plate and the top plate. A slide bar is extended between the base plate and the top plate. A clamp plate is interposed between the base plate and the top plate. The clamp plate is positioned between the support rods and the slide bar. A jaw assembly is slidably mounted on the slide bar to permit sliding of the jaw assembly along the slide bar between the base plate and the top plate. The jaw assembly has a sub-assembly for releasably holding the jaw assembly in a fixed positioned on the slide bar. The jaw assembly also has a jaw portion coupled to the clamp plate such that sliding of the jaw assembly along the slide bar in turn moves the clamp plate between the base plate and the top plate.
In these respects, the grinding disc holder 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 holding and dispensing paper backed abrasive grinding discs.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of grinding disc holders now present in the prior art, the present invention provides a new grinding disc holder construction wherein the same can be utilized for holding and dispensing paper backed abrasive grinding discs.
The general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new grinding disc holder apparatus and method which has many of the advantages of the grinding disc holders mentioned heretofore and many novel features that result in a new grinding disc holder which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art grinding disc holders, either alone or in any combination thereof.
To attain this, the present invention generally comprises a base plate and a top plate spaced above the base plate. A spaced apart pair of support rods are extended between the base plate and the top plate. A slide bar is extended between the base plate and the top plate. A clamp plate is interposed between the base plate and the top plate. The clamp plate is positioned between the support rods and the slide bar. A jaw assembly is slidably mounted on the slide bar to permit sliding of the jaw assembly along the slide bar between the base plate and the top plate. The jaw assembly has a sub-assembly for releasably holding the jaw assembly in a fixed positioned on the slide bar. The jaw assembly also has a jaw portion coupled to the clamp plate such that sliding of the jaw assembly along the slide bar in turn moves the clamp plate between the base plate and the top plate.
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 grinding disc holder apparatus and method which has many of the advantages of the grinding disc holders mentioned heretofore and many novel features that result in a new grinding disc holder which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art grinding disc holders, either alone or in any combination thereof.
It is another object of the present invention to provide a new grinding disc holder which may be easily and efficiently manufactured and marketed.
It is a further object of the present invention to provide a new grinding disc holder which is of a durable and reliable construction.
An even further object of the present invention is to provide a new grinding disc holder 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 grinding disc holder economically available to the buying public.
Still yet another object of the present invention is to provide a new grinding disc holder 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 grinding disc holder for holding and dispensing paper backed abrasive grinding discs.
Yet another object of the present invention is to provide a new grinding disc holder which includes a base plate and a top plate spaced above the base plate. A spaced apart pair of support rods are extended between the base plate and the top plate. A slide bar is extended between the base plate and the top plate. A clamp plate is interposed between the base plate and the top plate. The clamp plate is positioned between the support rods and the slide bar. A jaw assembly is slidably mounted on the slide bar to permit sliding of the jaw assembly along the slide bar between the base plate and the top plate. The jaw assembly has a sub-assembly for releasably holding the jaw assembly in a fixed positioned on the slide bar. The jaw assembly also has a jaw portion coupled to the clamp plate such that sliding of the jaw assembly along the slide bar in turn
Eley Timothy V.
Nguyen Dung Van
LandOfFree
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