Pepper grinder

Details Pepper grinder Pepper grinder

2001-09-21

2003-07-22

Rosenbaum, Mark (Department: 3725)

Solid material comminution or disintegration

Apparatus

Hand support comminutor

Reexamination Certificate

active

06595447

ABSTRACT:

BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention relates to a pepper grinder, and more particularly to one that provided with multiple grinding teeth protruding from the lower end of a grinding rod and multiple guide slots which are cross interconnected to one another are provided in recess on the peripheral of each grinding tooth.
(b) Description of the Prior Art
Pepper, as seasoning is a must to fine food. Usually, raw pepper is ground into powder or fine grains for use.
As illustrated in
FIGS. 1 and 2
, for a partially perspective view and sectional view of a grinder
1
of the prior art, which includes an accommodation holder
10
of the upper part and a grinding holder
14
of the lower part screwed to each other, and a grinding rod
11
inserted through the accommodation holder
10
and allowing longitudinal displacement, the lower end
12
of the grinding rod
11
being relatively penetrating through a grinding hole
15
provided in the center of the grinding holder
14
while the outer surface of the lower end
12
of the grinding rod
11
being provided multiples of grinding rings
13
for the lower end
12
of the grinding rod
11
and its corresponding grinding hole
15
to grind pepper grains into finer grains or power when the grinding rod
11
is pressed.
However, the grinder
1
of the prior art is found with the following defects:
1. As the grinding by the grinder
1
of the prior art is achieved by those grinding rings
13
provided at the lower end
12
of the grinder
11
and the grinding hole
15
of the grinding holder
14
to grind pepper into powders or fine gains, the grinding area formed as the lower end
12
contacts the grinding hole
15
is only limited to a significantly smaller area at the top of those grinding rings
13
, preventing effective grinding results.
2. Pepper grains after the grinding easily get stuck between the grinding hole
15
and the lower end
12
of the grinding rod
11
due to the poor grinding results by the smaller grinding area provided by the grinder
1
of the prior art, making it difficult to press the grinding rod
11
.
SUMMARY OF THE INVENTION
The primary purpose of the present invention is to provide a pepper grinder. To achieve the purpose, a grinding holder having a charge chute tapering downward to deposit pepper grains, a vertical grinding chute abutted to where below the charge chute and a discharge chute for the ground pepper grains to pass through, a hollow accommodation holder connected to where above the grinder grinding holder for both to define a containing chamber to accommodate pepper grains; and a grinding rod provided with a spring and inserted through the containing chamber to execute longitudinal movement, having its upper end deflecting upward and exposing out of the containing chamber and its lower end disposed in the grinding chute of the grinding holder, and multiples of grinding tooth abutted to one another protruding from the outer surface of the lower part of the grinding rod with each grinding tooth provided on its peripheral a guide slot; and the pepper grains being ground by friction between those grinding teeth and the grinding chute into finer grains. Accordingly the present invention improves the grinding efficiency by increasing the grinding contact area.
The secondary purpose of the present invention is to provide a pepper grinder having its top edge of the grinding chute being located at where above the bottom edge of the charge chute to create an acute angle for facilitating to discharge the ground pepper grains.


REFERENCES:
patent: 2679360 (1954-05-01), Arni
patent: 2698719 (1955-01-01), Heard
patent: 4697749 (1987-10-01), Holcomb et al.

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