Article dispensing – With discharge assistant – Plural or combined with manipulating means
Reexamination Certificate
2001-01-22
2003-01-07
Skaggs, H. Grant (Department: 3653)
Article dispensing
With discharge assistant
Plural or combined with manipulating means
C221S232000, C221S279000, C221S31200B
Reexamination Certificate
active
06502719
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a washer supply device that employs a pressing member connected with a biasing member to apply a downward force on the piled washers in the retaining tube.
BACKGROUND OF THE INVENTION
A conventional washer supply device
13
for a power nailer is shown in FIG.
1
and generally includes a disk-like box
11
in which washers
10
are received, the box
11
is engaged with the washer supply device
13
on a side of the power nailer
12
. A tube
14
is connected between the box
11
and a washer transferring device
15
which is connected to a nose portion
120
of the power nailer
12
. The box II and the device
13
are bulky and occupy a large space. Once the washers
10
are jammed in the box
11
, the box
11
is to be discarded.
FIG. 2
shows another type of washer supply device comprising a retaining tube
23
connected to a side of the power nailer
12
and a pushing rod
26
extends through the retaining tube
23
. A spring
25
is connected to the pushing rod
26
and a pushing end
27
is connected to a lower end of the pushing rod
26
. A washer transferring member
24
is connected to a nose
120
of the nailer
12
and a tubular casing
22
is engaged between the retaining tube
23
and the washer transferring member
24
. A plurality of washers
21
are piled in the tubular casing
22
and the washers
21
can be transferred to the nose
120
so as to be work with the nails ejected from the nose
120
. The washers
21
are pressed downward by the pushing end
26
and the tubular casing
22
is made of stiff material so that when some of the washers
21
are jammed in the tubular casing
22
, the tubular casing
22
has to be discarded. The pushing rod
26
extended from the retaining tube
23
and could be inconvenient for the user to using the power nailer
12
in a narrow space. Once the pushing rod
26
is bent, the washers
21
cannot be sent to the washer transferring member
24
.
SUMMARY OF THE INVENTION
In accordance with one aspect of the present invention, there is provided a washer supply device and comprises a retaining tube connected to a side of a power nailer and a slot is defined longitudinally through the retaining tube. The retaining tube has an open top and a washer supply device is connected a lower end of the retaining tube. A first member is movably received in the tubular tube and a second member is fixedly connected to an inner periphery of the retaining tube. A first end of a biasing band is fixedly connected to the first member and a second end of the biasing band is fixedly connected to the second member. A pressing member is connected to the first member so as to press the washers in the retaining tube. `The primary object of the present invention is to provide a washer supply device that has no long pushing rod and no box or tubular casing
22
are required.
These and further objects, features and advantages of the present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, several embodiments in accordance with the present invention.
REFERENCES:
patent: 2298884 (1942-10-01), Hope
patent: 3282490 (1966-11-01), Eady
patent: 5163580 (1992-11-01), Beach et al.
patent: 6302310 (2001-10-01), Lamb
Besco Pneumatic Corp.
Rosenberg , Klein & Lee
Skaggs H. Grant
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