VARIABLE PRESSURE CUTTING DEVICES

• US 20110119931A1
• Filed: 11/16/2010
• Published: 05/26/2011
• Est. Priority Date: 11/20/2009
• Status: Active Grant

• Current Assignee: Joseph H. Clearman
• Original Assignee: Joseph H. Clearman
• Inventors: CLEARMAN, JOSEPH H.
• Granted Patent: US 8,701,295 B2
• Time in Patent Office: Days
• US Class Current: 30/283
• CPC Class Codes: B26B 3/08 specially adapted for cutting cardboard, or wall, floor, or like covering materials
• CPC Class Codes: B26B 5/006 specially adapted for using razor blades as blades B26B5/001 takes precedence
• CPC Class Codes: B43M 7/002 Hand tools
• CPC Class Codes: B43M 7/007 with cutting blades

Abstract

An embodiment includes a cutting device having a blade; a device architecture configured to hold the blade that includes: a pressure body operable to remain rigid in response to a substrate pressing against a portion of the pressure body at a first pressure, and a portion of the pressure body operable to deform in response to the substrate pressing against a portion of the pressure body at a second pressure, and thereby provide variable resistance against the substrate; and, a cutter slot at a first device architecture end defined by the blade and the pressure body, the cutter slot configured to receive the substrate and operable to open rearwardly toward a second end as the pressure body deforms.

Claims

1. A cutting device comprising:

a blade;

a device architecture configured to hold the blade comprising;

a pressure body operable to remain rigid in response to a substrate pressing against a portion of the pressure body at a first pressure, and a portion of the pressure body operable to deform in response to the substrate pressing against a portion of the pressure body at a second pressure, and thereby provide variable resistance against the substrate; and

,

a cutter slot at a first device architecture end defined by the blade and the pressure body, the cutter slot configured to receive the substrate and operable to open rearwardly toward a second end as the pressure body deforms.

2. The cutting device of claim 1, wherein the pressure body comprises:

a spring extension; and

,

a pressure arm defining the cutter slot in combination with the blade.

3. The cutting device of claim 2,

wherein the spring extension extends from a portion of the device architecture at a first spring extension end;

and,

wherein the pressure arm extends from a second spring extension end.

4. The cutting device of claim 3,

wherein the spring extension extends from a portion of the device architecture at a first spring extension end in a first direction;

wherein the a pressure arm extends from a second spring extension end in a second direction substantially opposite from the first direction;

wherein the spring extension and pressure arm define a pressure body slot; and

,

wherein the cutter slot is defined within the pressure body slot.

5. The cutting device of claim 3, wherein the spring extension is operable to deform in response to the substrate pressing against a portion of the pressure body at the second pressure.

6. The cutting device of claim 3, wherein the pressure arm is operable to move in response to the substrate pressing against a portion of the pressure body at the second pressure.

7. The cutting device of claim 6, wherein the pressure arm is operable to move into a lower cavity defined by the device architecture.

8. The cutting device of claim 3, wherein a portion of the pressure body resides within an upper cavity defined by the device architecture, and wherein a portion of the pressure body is operable to contact a portion of the device architecture defining the upper cavity as the pressure body deforms and thereby provide further variable resistance to the substrate.

9. The cutting device of claim 3, wherein a portion of the pressure body is operable to reside within an lower cavity defined by the device architecture, and wherein a portion of the pressure body is operable to contact a portion of the device architecture defining the lower cavity as the pressure body deforms and thereby provide further variable resistance to the substrate.

10. The cutting device of claim 3, wherein the pressure body is contiguously formed from the device architecture.

11. The cutting device of claim 1, wherein the pressure body is a discrete body held within a portion of the device architecture.

12. The cutting device of claim 1, wherein the pressure body defines a blade slot, wherein a portion of the blade is operable to reside therein.

13. The cutting device of claim 1,

wherein the pressure body extends from a portion of the device architecture at a pressure body first end, and,

wherein a pressure body second end defines the cutter slot.

14. The cutting device of claim 13,

wherein the pressure body substantially resides within a pressure cavity defined by the device architecture;

and,

wherein a portion of the pressure body first end is operable to contact a portion of the device architecture that defines the pressure cavity and thereby provide variable resistance against the substrate as the pressure body deforms.

15. The cutting device of claim 14, wherein a substantial portion of the pressure body first end is operable to contact a portion of the device architecture that defines the pressure cavity.

16. The cutting device of claim 14, wherein increasing deformation of the pressure body in response to a substrate is operable to cause an increasing portion of the pressure body first end to increasingly contact a portion of the device architecture that defines the pressure cavity.

17. The cutting device of claim 16, wherein the increasing contact extends from the pressure body first end toward the pressure body second end.

18. The cutting device of claim 1, wherein the blade is an industry standard razor blade.

19. The cutting device of claim 1, wherein the blade is removable from the device architecture.

20. The cutting device of claim 1, wherein the pressure body comprises:

an upper pressure arm; and

,

a lower pressure arm, the upper and lower pressure arm being joined at a flex region and both extending from the flex region.

21. The cutting device of claim 20,

wherein the upper and lower pressure arm extend substantially in the same direction;

and,

wherein the upper and lower pressure arm define an upper-lower pressure arm slot.

22. The cutting device of claim 21,

wherein a portion of the upper pressure arm and the blade define the cutter slot;

wherein the upper pressure arm is operable to remain substantially rigid in response to a substrate pressing against the upper pressure arm at a first pressure; and

,

wherein the lower pressure arm and flex region are operable to deform in response to the substrate pressing against the upper pressure arm at a second pressure.

23. The cutting device of claim 1, wherein the pressure body comprises a single elongated member extending from a portion of the device architecture at a flex portion, the flex portion operable to deform in response to the substrate pressing against the pressure body at the second pressure.

24. The cutting device of claim 23, wherein the flex portion has a smaller width than the width of the portion of the pressure body extending therefrom.

25. The cutting device of claim 23, wherein the pressure body is operable to increasingly move into a pressure cavity defined by the device architecture as the cutter slot opens rearwardly.