Implements or apparatus for applying pushing or pulling force – Vehicle attached jack – Attached to trailer tongue
Reexamination Certificate
2001-09-07
2003-11-25
Fenstermacher, David (Department: 3682)
Implements or apparatus for applying pushing or pulling force
Vehicle attached jack
Attached to trailer tongue
C254S418000
Reexamination Certificate
active
06651963
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to electric drive systems and more particularly pertains to a new portable drive system for automating the rotation of drive systems designed to use hand cranks.
2. Description of the Prior Art
The use of electric drive systems is known in the prior art. More specifically, electric drive systems 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. No. 5,769,485; U.S. Pat. No. 4,261,614; U.S. Pat. No. 4,815,786; U.S. Pat. No. 3,734,559; U.S. Pat. No. 4,749,169; and U.S. Pat. No. Des. 312,613.
While these devices fulfill their respective, particular objectives and requirements, the aforementioned patents do not disclose a new portable drive system. The inventive device includes an housing designed for being held in position by a human using two hands, a drive motor positioned substantially within the housing and used to provide a rotational force for activating a drive shaft conventionally activated by a hand crank, and a drive shaft which is operationally coupled to the drive motor and extends from the housing through an aperture in the front wall of the housing.
In these respects, the portable drive system 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 automating the rotation of drive systems designed to use hand cranks.
SUMMARY OF THE INVENTION
In view of the foregoing disadvantages inherent in the known types of electric drive systems now present in the prior art, the present invention provides a new portable drive system construction wherein the same can be utilized for automating the rotation of drive systems designed to use hand cranks.
The general purpose of the present invention, which will be described subsequently in greater detail, is to provide a new portable drive system apparatus and method which has many of the advantages of the electric drive systems mentioned heretofore and many novel features that result in a new portable drive system which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art electric drive systems, either alone or in any combination thereof.
To attain this, the present invention generally comprises an housing designed for being held in position by a human using two hands, a drive motor positioned substantially within the housing and used to provide a rotational force for activating a drive shaft conventionally activated by a hand crank, and a drive shaft which is operationally coupled to the drive motor and extends from the housing through an aperture in the front wall 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 portable drive system apparatus and method which has many of the advantages of the electric drive systems mentioned heretofore and many novel features that result in a new portable drive system which is not anticipated, rendered obvious, suggested, or even implied by any of the prior art electric drive systems, either alone or in any combination thereof.
It is another object of the present invention to provide a new portable drive system which may be easily and efficiently manufactured and marketed.
It is a further object of the present invention to provide a new portable drive system which is of a durable and reliable construction.
An even further object of the present invention is to provide a new portable drive 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 portable drive system economically available to the buying public.
Still yet another object of the present invention is to provide a new portable drive system 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 portable drive system for automating the rotation of drive systems designed to use hand cranks.
Yet another object of the present invention is to provide a new portable drive system which includes an housing designed for being held in position by a human using two hands, a drive motor positioned substantially within the housing and used to provide a rotational force for activating a drive shaft conventionally activated by a hand crank, and a drive shaft which is operationally coupled to the drive motor and extends from the housing through an aperture in the front wall of the housing.
Still yet another object of the present invention is to provide a new portable drive system that can be used in conjunction with existing hand driven drive systems.
Even still another object of the present invention is to provide a new portable drive system that reduces the potential of injury or muscle strain due to actuating hand crank drive systems.
REFERENCES:
patent: 3735559 (1973-05-01), Touchette
patent: 4261614 (1981-04-01), Rice
patent: 4749169 (1988-06-01), Pickles
patent: 4815786 (1989-03-01), Mcray
patent: D312613 (1990-12-01), Shichida
patent: 5056661 (1991-10-01), Balzano
patent: 5137235 (1992-08-01), Wentworth et al.
patent: 5445479 (1995-08-01), Hillinger
patent: 5657964 (1997-08-01), Yoshida
patent: 5769485 (1998-06-01), Bontrager et al.
patent: 5820317 (1998-10-01), Van Troba
patent: 5865499 (1999-02-01), Keyser
patent: 5885036 (1999-03-01), Wheeler
patent: 6484361 (2002-11-01), Schmid et al.
patent: WO 9950030 (1999-10-01), None
Kayser C. Edward
Kayser Suzanne E.
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