Patent attributes
A grinder includes a body, an upper sleeve-shaped member pivoting on the body and dividing an inside of the body into inner and outer rooms, a cover pivoting on the sleeve-shaped member, a connecting rod joined to a middle of the cover and extending through the inner room, an inner toothed ring joined to a lower end of the connecting rod, an intermediate toothed ring secured to a lower end of the sleeve-shaped member, and an outer toothed ring secured in a lower end of the body; the intermediate toothed ring has grinding teeth on inner and outer sides; the inner toothed ring and the inner grinding teeth of the intermediate toothed ring constitute an inner grinding mechanism for grinding seasoning pellets held in the inner room of the body; the outer grinding teeth of the intermediate toothed ring and the outer toothed ring constitute an outer grinding mechanism.