Cutting – Tool with either work holder or means to hold work supply – Rotatable wound package supply
Reexamination Certificate
2002-01-30
2003-12-30
Ashley, Boyer D. (Department: 3724)
Cutting
Tool with either work holder or means to hold work supply
Rotatable wound package supply
C225S019000, C225S066000, C225S089000, C156S523000, C156S579000, C156S574000, C156S577000
Reexamination Certificate
active
06668697
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to an automatic cutting device for an adhesive-tape holder, particularly to one having a blade sandwiched by a blade slide base and a blade holder and actuated to cut off an adhesive tape with precision when a press plate is pressed.
A conventional adhesive-tape holder, as disclosed in the Taiwan Patent No. 5641377, 5906705, 5849144, titled “RETRACTABLE BLADE HAND HELD TAPE APPLICATORS”, has its flat plate and its blade connected by a spring and then pressed by a press plate having positioning member serving as a fulcrum to push the blade forward to cut off adhesive tape.
However, the spring in the foresaid conventional device is provided dangling between the flat plate and the blade, therefore it is likely to be contracted to an unexpected position and hard to recover its position as anticipated.
In addition, a fixing plate has to be additionally provided on the rear side of the press plate and positioning members have to be respectively provided on opposite sides of the fixing plate to be respectively inserted in the positioning grooves of an adhesive-tape holder and of a side plate to make up two pivotal shafts, thus complicating its structure and increasing its cost.
SUMMARY OF THE INVENTION
This invention has been devised to offer an automatic cutting device for an adhesive-tape holder, having a blade sandwiched by a blade slide base and a blade holder to be guided and restricted to move forward to cut off an adhesive tape precisely when a press plate is pressed.
REFERENCES:
patent: 3753839 (1973-08-01), Funke et al.
patent: 5236540 (1993-08-01), Shi
patent: 5393367 (1995-02-01), Yu Chen
patent: 5456790 (1995-10-01), Yu Chen
patent: 5849144 (1998-12-01), Tang et al.
patent: 5954916 (1999-09-01), Orlandi
Ashley Boyer D.
Troxell Law Office PLLC
LandOfFree
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