Electric pepper mill

Details Electric pepper mill Electric pepper mill

2003-02-11

2004-12-14

Ostrager, Allen (Department: 3725)

Solid material comminution or disintegration

Apparatus

Hand support comminutor

C241S168000, C241S258000

Reexamination Certificate

active

06830205

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electric pepper mill, more particularly one, which is equipped with such a conducting element that the electric circuit thereof will be opened when the pepper mill is placed in an upside down position; thus, the pepper mill will not be powered to work in an upside down position.
2. Brief Description of the Prior Art
Electric pepper mills are very popular because they can save the users a lot of labor. Referring to
FIGS. 12
, and
13
, a conventional pepper mill includes a main body
40
, a pepper holding member
50
, a power unit
60
, and a grinding unit
70
.
The main body
40
includes an upper cover
401
, a cylindrical element
402
, a transparent element
403
, and a manual turning plate
405
; the upper cover
401
is joined to an upper end of the cylindrical element
402
with three hooks
4011
thereof engaging corresponding trenches
4021
of the cylindrical element
402
; the transparent element
403
is fitted around the cylindrical element
402
; the cylindrical element
402
has a slot
4022
, a protrusion
4023
sticking up form the lower end of the slot
4022
; a switch
404
is up and down movably fitted to the slot
4022
with a mortise
4041
thereof being fitted over the protrusion
4023
; the switch
404
is normally biased to an off position, and can be pushed down to an on position; the cylindrical element
402
is detachably joined to the manual turning plate
405
with engaging protrusions
4024
of the lower end thereof being fitted into engaging trenches of the turning plate
405
, which are formed adjacent to pushed block
4051
of the turning plate
405
; the cylindrical element
402
can be detached from the manual turning plate
405
when the pushed block
4051
are pushed.
A fixing chamber
406
is provided in the cylindrical element
402
while the power unit
60
has a motor holder
602
fixedly disposed in the fixing chamber
406
, and a motor
601
held in the motor holder
602
.
The grinding unit
70
includes a transmission shaft
701
, which is connected to a central gear
702
of a gear combination joined to the shaft of the motor
601
at an upper end; the transmission shaft
701
is further screwed into an adjustment knob
703
arranged above the upper cover
401
so that fineness of ground pepper can be adjusted by means of the knob
703
.
The manual turning plate
405
is joined to the upper end of the pepper holding member
50
; the manual turning plate
405
is formed with stopping parts
4052
, which are engaged with sloping stop protrusions
501
of the pepper holding member
50
to prevent the holding member
50
from turning together with the transmission shaft
701
.
The pepper mill is not very convenient to use because the user has to keep on pressing the switch
404
in order for the pepper mill to work. If the pepper mill is equipped with such a switch instead of the one
404
that the pepper mill can continue working after the switch has been moved to the on position, the switch has to be moved back to the off position when the user wants to stop using the mill. Therefore, the pepper mill is still not very convenient to use with such switch.
SUMMARY OF THE INVENTION
It is a main object of the present invention to provide an electric pepper mill, which will not be powered to work in an upside down position.
The electric pepper mill of the present invention is equipped with a conducting element, which can move such a position as to close a circuit consisting of a motor and batteries of the pepper mill for the motor to be powered with the batteries when the pepper mill is turned to an upright position, and which can move to a non-action position when the pepper mill is turned upside down so that the circuit is opened. In other words, the motor of the pepper mill will not be powered with the batteries when the pepper mill is turned upside down.


REFERENCES:
patent: 3734417 (1973-05-01), Russell et al.
patent: 4685625 (1987-08-01), Mazza
patent: 4925150 (1990-05-01), Tedioli

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