IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0474564
(2009-05-29)
|
| 등록번호 |
US-8099871
(2012-01-24)
|
|
발명자
/ 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
The Marbury Law Group PLLC
|
| 인용정보 |
피인용 횟수 :
3 인용 특허 :
43 |
초록
▼
A utility knife is useful for operations such as glazing, roofing, carpeting and SHEETROCK™ drywall fabrication wherein the knife is used in close proximity to window edges, walls or corners. A blade-holding portion of the utility knife has a planar bottom wall and structure for mounting the blade a
A utility knife is useful for operations such as glazing, roofing, carpeting and SHEETROCK™ drywall fabrication wherein the knife is used in close proximity to window edges, walls or corners. A blade-holding portion of the utility knife has a planar bottom wall and structure for mounting the blade at a small angle relative to the bottom wall so that the blade is able to flex and substantially conform to the plane of a surface upon which the planar bottom surface of the utility knife is supported. A handle portion of the utility knife is offset from the planar bottom surface so as to position a user's hand away from the surface on which the utility knife is supported.
대표청구항
▼
1. A utility knife comprising: a multi-edged knife blade having a flat surface that defines a two-dimensional plane in space; anda substantially S-shaped handle for supporting the blade, said handle comprising a substantially S-shaped first member and a substantially S-shaped second member, wherein
1. A utility knife comprising: a multi-edged knife blade having a flat surface that defines a two-dimensional plane in space; anda substantially S-shaped handle for supporting the blade, said handle comprising a substantially S-shaped first member and a substantially S-shaped second member, wherein said first member is removably attached to said second member in order to create said substantially S-shaped handle and wherein said second member comprises a shoe portion and said first member comprises a tip portion configured to slide into said shoe portion and capture the knife blade,wherein one leg of the S-shape is a gripping portion and the other leg of the S-shape is a blade supporting portion, and said gripping portion is angulated in a fixed manner with respect to said blade such that said gripping portion is angulated away from and out of said two-dimensional plane,wherein the blade supporting portion comprises a substantially wedge-shaped channel in said second member adjacent said shoe portion, wherein said substantially wedge-shaped channel comprises a planar bottom surface and the knife blade is supported in a lower, off center position adjacent the planar bottom surface, andwherein the wedge-shaped channel is dimensioned for holding the knife blade at an angle between about 2° and 10° with respect to a bottom wall of the second member. 2. The utility knife of claim 1, wherein the knife blade extends through a slot-shaped opening in a tip of the second member. 3. The utility knife of claim 1, further comprising: a locating lug on the substantially S-shaped first member; anda locating hole in the blade. 4. The utility knife of claim 1, wherein the multi-edged blade has at least 4 edges. 5. The utility knife of claim 1, wherein the angle the knife blade is held with respect to the bottom wall of the second member is about 5°. 6. The utility knife of claim 1, wherein the gripping portion comprises a spare blade storage compartment. 7. The utility knife of claim 1, wherein the gripping portion is offset at a fixed angle from the blade supporting portion. 8. The utility knife of claim 1, wherein the gripping portion is offset and substantially parallel to the blade supporting portion. 9. The utility knife of claim 1, further comprising: a blade carriage configured to hold the blade and position the blade at plural locations along the planar channel, wherein the angle knife blade is held with respect to the bottom wall of the second member is about 5°. 10. A utility knife comprising: a detachable blade having a flat surface that defines a two-dimensional plane in space, the blade having a sharp edge and an anchoring hole; anda substantially S-shaped handle supporting the blade, wherein one leg of the S-shape is a gripping portion and the other leg of the S-shape is a blade supporting portion, and the gripping portion is angulated in a fixed manner with respect to the blade such that the gripping portion is angulated away from and out of the two-dimensional plane, the substantially S-shaped handle comprising:a substantially S-shaped first member;a substantially S-shaped second member;a substantially wedge-shaped channel disposed within the blade supporting portion of the substantially S-shaped second member configured to contain and support the blade, the substantially wedge-shaped channel comprises a planar bottom surface of the blade supporting portion of the substantially S-shaped second member;a locating pin disposed within the blade supporting portion of the substantially S-shaped handle and configured to engage the anchoring hole in the blade;a shoe portion configured in the second member adjacent an open end of the substantially wedge-shaped channel; anda tip portion configured on the first member,wherein the tip portion is configured to slide into the shoe portion and capture the blade in a lower, off-center position adjacent the planar bottom surface, thereby removably attaching the first and second members together in order to create said substantially S-shaped handle, andwherein the wedge-shaped channel is dimensioned for holding the knife blade at an angle between about 2° and 10° with respect to a bottom wall of the second member. 11. The utiltiy knife of claim 10, further comprising a fastener between the substantially S-shaped first and second members for fastening the substantially S-shaped first and second members together. 12. The utility knife of claim 11, wherein the fastener between the substantially S-shaped first and second members is a screw. 13. The utility knife of claim 10, wherein the flat blade comprises at least 4 edges. 14. The utility knife of claim 13, wherein the substantially S-shaped first member includes a blade-clamping plate and the blade-clamping plate includes the locating pin. 15. The utility knife of claim 10, wherein the gripping portion and blade supporting portion are offset at a fixed, obtuse angle between about 135 degrees to about 150 degrees. 16. The utility knife of claim 10, wherein the angle the knife is held with respect to the bottom wall of the second member is about 5°. 17. The utility knife of claim 10, wherein the gripping portion comprises a spare blade storage compartment. 18. the utility knife of claim 10, wherein the gripping portion is offset at a fixed angle from the blade supporting portion. 19. The utility knife of claim 10, wherein the gripping portion is offset and substantially parallel to the blade supporting portion. 20. The utility knife of claim 10, further comprising a blade carriage configured to hold the blade and position the blade at plural locations along the channel.
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