The present invention relates to mechanical pencils and, more particularly, to mechanical pencils with rotating cylinders that prevent breaking and jamming of graphite sticks and contain many graphite sticks.
Most mechanical pencils can only carry a small amount of graphite sticks without jamming. Many times in high school or college my mechanical pencil would run out of graphite sticks during a test. I would have to stop writing and look through my book bag for more graphite sticks. Then I would try to put as many graphite sticks in the pencil as possible so I would not run out again. This usually caused the mechanical pencil to jam or crush the graphite sticks. Mechanical pencils are always jamming and breaking graphite. Since mechanical pencils can only hold a small amount of graphite, a person must carry graphite sticks with them at all times. This can be very troublesome for students. My mechanical pencil solves the three major problems that are inherent in all standard mechanical pencils, jamming, breaking graphite sticks, and the inability to carry large amounts of graphite sticks.
To my knowledge there are no mechanical pencils that rotate while preventing breaking, jamming, and allowing the user to carry large amounts of graphite sticks within the pencil.
Increasing the size of a mechanical pencil can allow for more graphite sticks to be placed inside the pencil, but the mechanical pencil must be more bulky and costly. A larger size mechanical pencil does not solve the duel problems of jamming and breaking graphite sticks.
It is therefore an object of the invention to carry large amounts of graphite sticks inside of a mechanical pencil with a rotating cylinder.
It is another object of the invention to prevent graphite sticks from jamming the mechanical pencil.
It is another object of the invention to prevent the mechanical pencil from breaking graphite sticks.
The mechanical pencil with a rotating cylinder is comprised of three major parts. The mechanical pencil portion, the cylinder portion, and the eraser cap. The mechanical pencil portion is a typical mechanical pencil that is operated by inserting a graphite stick and clicking a button to advance the graphite stick. The cylinder portion has one large cylinder containing several smaller cyliders that hold one graphite stick each. The eraser cap is placed on top of the rotating cylinder and prevents the graphite sticks from falling out the back of the rotating cylinder. The eraser cap is a standard mechanical pencil eraser cap used for making corrections. The pencil is operated by turning the large cylinder with the hand until a single graphite stick falls into the mechanical pencil portion.
A complete understanding of the present invention may be obtained by reference to the accompanying drawings, when considered in conjunction with the subsequent, detailed description, in which:
For purposes of clarity and brevity, like elements and components will bear the same designations and numbering throughout the Figures.
In summary it can be seen that the mechanical pencil 10 with rotating cylider is comprised of three major elements. These elements are held together by friction alone. The mechanical pencil 10 with rotating cylider as depicted here does not use batteries or any power source except a human hand. Although the mechanical pencil 10 with rotating cylinder 11 can be adapted to use alternative sources of energy to rotate element 11. If used properly the mechanical pencil 10 with rotating cylinder 11 will prevent graphite sticks from breaking or jamming, and allow the user to carry a large amount of graphite sticks.
Since other modifications and changes varied to fit particular operating requirements and environments will be apparent to those skilled in the art, the invention is not considered limited to the example chosen for purposes of disclosure, and covers all changes and modifications which do not constitute departures from the true spirit and scope of this invention.
Having thus described the invention, what is desired to be protected by Letters Patent is presented in the subsequently appended claims.