Structure art design knife

Details Structure art design knife Structure art design knife

2000-04-07

2001-12-04

Payer, Hwei-Siu (Department: 3724)

Cutlery

Sheathed

Sliding blade

C030S125000, C030S335000

Reexamination Certificate

active

06324763

ABSTRACT:

BACKGROUND OF THE INVENTION
1) Field of the Invention
The invention herein relates to an improved structure art design knife that is easy to control during cutting operations.
2) Description of the Prior Art
Conventional art design knives are capable of cutting or slicing paper or twine of average thickness. For thicker cardboard or overlaid carded material, a larger model art design knife such as that shown in
FIG. 1
is required to facilitate cutting. However, when cutting with the blade
1
of such an art design knife, the blade
1
tends to wiggle because a clearance interval is required between the blade
1
and the guide slot
2
, which causes curvilinear drift or deviation from the intended line while cutting that requires additional corrective trimming or, in the case of serious inaccuracy, renders objects discardable. How to provide for very easy control and less skewing propensity is now the key objective requirement that must be achieved and in view of the said shortcomings and their causes, the inventor of the invention herein designed the present invention utilizing simple components.
SUMMARY OF THE INVENTION
The primary objective of the invention herein is to provide an improved structure art design knife that is convenient to operate and control that does not curvilinearly drift or deviate from the intended line while utilized for cutting to prevent additional corrective trimming or serious inaccuracy that renders objects discardable, and thereby reduce defect rates.
Another objective of the invention herein is to provide an improved structure art design knife wherein blade replacement is extremely easy, rapid, and safe and, furthermore, does not require any additional tools to accomplish.


REFERENCES:
patent: 3577637 (1971-05-01), Braginetz
patent: 3765089 (1973-10-01), Ibata
patent: 4242795 (1981-01-01), Rollband et al.
patent: 5121544 (1992-06-01), Gilbert
patent: 5406707 (1995-04-01), Owens et al.
patent: 6161290 (2000-12-01), Takamasa
patent: 6163963 (2000-12-01), Huang
patent: 6192589 (2001-02-01), Martone et al.

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