Solid material comminution or disintegration – Apparatus – With independent removable or detachable material receiver...
Reexamination Certificate
2001-06-25
2002-10-08
Husar, John M. (Department: 3725)
Solid material comminution or disintegration
Apparatus
With independent removable or detachable material receiver...
C241S236000, C241S285200
Reexamination Certificate
active
06460790
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates generally to a paper shredder, and more particularly to a structure for adjusting width of the frame of the paper shredder.
BACKGROUND OF THE INVENTION
The U.S. Pat. No. 5,839,675 discloses a paper shredder as shown in FIG.
1
. This prior art paper shredder
70
is provided in one side with an expandable frame
71
which is formed of two expandable rods
72
and an actuate outer rod
75
. The two expandable rods
72
are expendably disposed in the main body of the paper shredder
70
. The actuate outer rod
75
is fastened with the outer ends of the two expandable rods such that the actuate outer rod
75
cooperates by means of its radian with the actuate fringe of a paper strip collecting bucket
79
. In light of the adjustable length of the expandable rods
72
, the paper shredder
70
cooperates with the paper strip collecting buckets
79
various in width.
Such a prior art paper shredder as described above is defective in design in that the actuate outer rod
75
has a fixed shape and a fixed radian. As a result, the actuate outer rod
75
can only accommodate a bucket which has an opening of a predetermined radian. In addition, there is lack of a means to fasten the paper shredder
70
with the bucket
79
.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a paper shredder with a frame width adjusting structure for adjusting the radian of the outer end of the frame such that the paper shredder cooperates with the paper strip collecting containers having openings various in width and shape. In addition, the paper shredder can be held securely in place on the paper strip collecting containers.
The frame width adjusting structure of the present invention is mounted on the main body of the paper shredder, which is formed of a housing, a paper shredding tool, a control circuit, and a drive motor. The housing is provided in one side with a retaining piece extending downwards. The frame width adjusting structure comprises two expandable rods which are parallel to each other and are expendably disposed in other side of the main body of the paper shredder such that the expandable rods are opposite in location to the retaining piece, and that the outer ends of the two expandable rods are connected by a bridging member which is provided with a receiving cell with an opening facing downwards, two fixation pillars which are disposed at the top end thereof in the top of the receiving cell of the bridging member such that the two fixation pillars are separated from each other by a predetermined distance, and that the bottom ends of the pillars are jutted out of the receiving cell, two connection rods pivoted at one end thereof with the bottom ends of the two fixation pillars, a pull handle provided with a retaining piece extending downwards and pivoted with other ends of the two connection rods. The pull handle is located at the outer side of the bridging member. As the pull handle is swiveled in relation to the bridging member, a small adjustment space is made available to accommodate the paper strip collectors with openings various in shape. The paper shredder is secured in place on the paper strip collector.
REFERENCES:
patent: 3724766 (1973-04-01), Bosland
patent: 4637560 (1987-01-01), Goldhammer
patent: 4973004 (1990-11-01), Krause et al.
patent: D375973 (1996-11-01), Kennedy et al.
patent: 5839675 (1998-11-01), Henreckson et al.
patent: 5988542 (1999-11-01), Henreckson et al.
Browdy and Neimark , P.L.L.C.
Husar John M.
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