Inner grinding member of a pepper grinder

Details Inner grinding member of a pepper grinder Inner grinding member of a pepper grinder

1999-12-07

2001-05-01

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Apparatus

Hand support comminutor

Reexamination Certificate

active

06224005

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to a pepper grinder, and particularly to an inner grinding member of the pepper grinder.
Referring to
FIGS. 4 and 5
, a heretofore known pepper grinder has an inner grinding member
10
and an outer grinding member
20
. The outer grinding member
20
is housed in a housing and the inner grinding member
10
is connected to a transmission member (not shown) such that the inner grinding member
10
can turn relative to the outer grinding member
20
to grind pepper into finer particulates between the inner and the outer grinding members
10
and
20
.
The grinding members
10
and
20
are made of metallic materials. Therefore, metal chipping and shaving can be easily formed when the inner grinding member
10
turns relative to, and rubs against the outer grinding member
20
. The metal chipping and shaving are then mixed with the pepper particulate, and will endanger the health of the people eating the pepper particulate.
To overcome the above undesirable feature, grinding members made of pottery and porcelain are provided. The grinding members made of pottery and porcelain are relatively hard, and cannot rust. So, they can overcome the disadvantages of the above said ones.
However, because the inner grinding member is made of pottery and porcelain, it is likely to be broken by a metal bolt, which connects it to the transmission member when the metal bolt is screwed onto it too hard.
SUMMARY OF THE INVENTION
Therefore, it is a main object of the present invention to provide an inner grinding member which won't be easily broken by the metal bolt connecting the inner grinding member with the transmission member.
The inner grinding member comprises a main body and a cushion member. The main body has teeth thereon, and is received in an outer grinding member of the pepper grinding such that the inner grinding member can turn relative to the outer member to grind pepper into small particulates therebetween.
The inner grinding member is made of porcelain, and has a holding room on a bottom side. The cushion member is made of plastic, and has a polygonal lower part and an upper part. The cushion member is received in the holding room of the main body; the holding room is shaped such that the cushion member can be firmly received therein with no space in between.
A bolt is passed through the inner grinding member, and connects to a nut arranged under the cushion member. The bolt is further connected to a transmission member. Thus, the cushion member can prevent the inner grinding member from being broken by the nut when the bolt is screwed into the nut too hard.


REFERENCES:
patent: 3168256 (1965-02-01), Bounds et al.
patent: 5785264 (1998-07-01), Yang

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