Portable grinder

Abstract

A portable grinder may include a side cover having inner threads and a cover receiving space, said inner threads used to engage with middle inner threads of a middle piece; a first grinding piece, one side of which having a plurality of first grinding protrusions and a plurality of through holes scattered at various locations between the first grinding protrusions; and the other side having a screening unit; a middle piece adapted to receive the first grinding piece and connect to a second grinding piece through a bearing; and a second grinding piece having a plurality of second grinding protrusions facing the first grinding protrusions, wherein substances to be grinded are disposed in a second receiving space between first and second grinding protrusions, and the first and second grinding protrusions of the portable grinder are driven by gravity to spin to grind the substances therein.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a portable grinder, and more particularly to a portable tobacco grinder in which the gravity triggers the movement of the grinder to grind the tobacco leaves therein.BACKGROUND OF THE INVENTION[0002]There are several types of grinders to grind materials such as tobacco leaves used in cigarettes or pipes. At an early stage, user would simply crush tobacco leaves in their hands. With the advance of mechanical arts, the tobacco leaves can be grinded into smaller particles in mechanical devices. In U.S. Pat. No. 4,304,363 to Atkielski, it discloses a compact grinder for material used for cigarettes, and more particularly a small, compact grinder useful for materials used in cigarettes which is able to be carried in a woman's purse, automobile glove compartment and the like, and which is easily operated to provide freshly ground foreign particle free material for rolling cigarettes, as shown in FIG. 1. However, when the grinder...

AI Technical Summary

Benefits of technology

The present invention provides a portable grinder that can save the user's effort and also serve the entertainment purposes. It has a unique "yo-yo" style design that allows the user to grind the substances therein easily and efficiently. The grinding process can be repeated several times, and the user can simply hold the string and release the grinder, causing the grinder to spin down and grind the substances therebetween. This invention is advantageous because it is portable, saves effort, and can provide entertainment.

Problems solved by technology

However, when the grinder is used, the user still has to manually operate the grinder, which may cause certain level of inconvenience to the user.

Also, this grinder does not serve any entertainment purposes to the user while he / she is grinding the materials.

However, like Atkielski, the grinding device does not serve any entertainment purposes while the user is using the grinder, and the user has to spend efforts to manually grind the substances therein.

Even though the user can have a visual access to the interior of the compartment of the tobacco grinder, similar to Atkielski and Namakian, the user still has to spend efforts to operate the tobacco grinder, and the grinder still fails to serve any entertainment purposes.

Images