Cutlery – Combined cutlery or combined with ancillary feature – With material-holder or disposal
Reexamination Certificate
1999-07-08
2001-04-10
Watts, Douglas D. (Department: 3724)
Cutlery
Combined cutlery or combined with ancillary feature
With material-holder or disposal
C030S124000, C030S169000, C451S456000
Reexamination Certificate
active
06212778
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to cutting tools and more particularly pertains to a new plaster cutting device for cutting grooves into cracked portions of ceilings and walls.
2. Description of the Prior Art
The use of cutting tools is known in the prior art. More specifically, cutting tools 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 cutting tools include U.S. Pat. No. 4,839,966 to Krouzkevitch et al.; U.S. Pat. No. 4,860,450 to Achille; U.S. Pat. No. Des. 337,037 to Yelton; U.S. Pat. No. 4,938,201 to Chiuminatta et al.; U.S. Pat. No. 5,381,780 to Yelton et al.; and U.S. Pat. No. 4,360,048 to Schadlich et al.
While these devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not disclose a new plaster cutting device. The inventive device includes a housing having a hollow interior. The hollow interior has a forward chamber and a rearward chamber. An elongated handle extends angularly upward from the housing. The elongated handle has a hollow interior. A motor is secured within the rearward chamber of the housing. The motor has a rotatable gear disposed on an end thereof. A cylindrical wheel is rotatably disposed within the forward chamber of the housing. The cylindrical wheel has a plurality of cutting teeth disposed thereon. The cylindrical wheel has a gear disposed on an end thereof. A belt extends around the rotatable gear of the motor and the gear of the cylindrical wheel whereby activation of the motor will facilitate rotation of the cylindrical wheel.
In these respects, the plaster cutting device 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 cutting grooves into cracked portions of ceilings and walls.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of cutting tools now present in the prior art, the present invention provides a new plaster cutting device construction wherein the same can be utilized for cutting grooves into cracked portions of ceilings and walls.
The general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new plaster cutting device apparatus and method which has many of the advantages of the cutting tools mentioned heretofore and many novel features that result in a new plaster cutting device which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art cutting tools, either alone or in any combination thereof.
To attain this, the present invention generally comprises a housing having a generally square configuration. The housing has a closed upper end, an open bottom end, an arcuate forward wall, an open rear wall, opposed side walls and a hollow interior. The closed upper end has an opening therethrough. The hollow interior has a forward chamber and a rearward chamber. The forward chamber is contiguous with the opening in the closed upper end and the open bottom end. An elongated handle extends angularly upward from the open rear wall of the housing. The elongated handle has a hollow interior. A motor is secured within the rearward chamber of the housing. The motor has a rotatable gear disposed on an end thereof. A cylindrical wheel is rotatably disposed within the forward chamber of the housing. The cylindrical wheel has a plurality of cutting teeth disposed thereon. The cutting teeth are arranged in a plurality of linear rows across an outer surface thereof whereby a single row of teeth are disposed outwardly of the open bottom end of the housing. The cylindrical wheel has a gear disposed on an end thereof. A belt extends around the rotatable gear of the motor and the gear of the cylindrical wheel whereby activation of the motor will facilitate rotation of the cylindrical wheel. A collection cover is removably coupled with the opening in the closed upper end of the housing. The collection cover has an open inner end for receiving debris therein. A power switch is disposed within the elongated handle. The power switch is in communication with the motor. A battery is disposed within the elongated handle. The battery is in communication with the power switch. A depth gauge is secured to the opposed side walls of the housing. The depth gauge has a planar lower edge disposed on a plane slightly below the open bottom end of the housing.
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 plaster cutting device apparatus and method which has many of the advantages of the cutting tools mentioned heretofore and many novel features that result in a new plaster cutting device which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art cutting tools, either alone or in any combination thereof.
It is another object of the present invention to provide a new plaster cutting device which may be easily and efficiently manufactured and marketed.
It is a further object of the present invention to provide a new plaster cutting device which is of a durable and reliable construction.
An even further object of the present invention is to provide a new plaster cutting device 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 plaster cutting device economically available to the buying public.
Still yet another object of the present invention is to provide a new plaster cutting device 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 prese
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