Knife apparatus and method

Patent metadata

Field	Value
Publication number	US-11685065-B2
Application number	US-202017137492-A
Country	US
Kind code	B2
Filing date	Dec 30, 2020
Priority date	Jan 2, 2020
Publication date	Jun 27, 2023
Grant date	Jun 27, 2023

Abstract

An apparatus including left and right handle portions; a first blade portion; a first device; and a fastener. The fastener may be configured to connect in a first state, first ends of the left handle portion, the right handle portion, and the first blade portion to each other, with the first blade portion sandwiched between the left and right handle portions. The first device may be configured to connect second ends of the left and right handle portions and an intermediate part of the first blade portion. In at least one embodiment, in the first state the left and right handle portions, and the first blade portion are fixed to each other so that their orientation with respect to one another cannot be changed without disconnecting the fastener so that it no longer connects the first ends of the left and right handle portions, and the first blade portion.

First claim

I claim:

1. An apparatus comprising:
a left handle portion;
a right handle portion;
a first blade portion;
a first device;
and
a fastener;
wherein the fastener is configured to connect in a first state, first ends of the left handle portion, the right handle portion, and the first blade portion to each other, with the first blade portion sandwiched between the left handle portion and the right handle portion;
wherein the first device is configured to connect second ends of the left handle portion and the right handle portion and an intermediate part of the first blade portion;
wherein in the first state the left handle portion, the right handle portion, and the first blade portion are fixed to each other so that their orientation with respect to one another cannot be changed without disconnecting the fastener so that it no longer connects the first ends of the left handle portion, the right handle portion, and the first blade portion;
wherein removal of the fastener from the left handle portion, the first blade portion, and the right handle portion, allows the left handle portion to rotate with respect to the first blade portion and the right handle portion, while the left handle portion is connected to the first blade portion and the right handle portion;
wherein the first device includes a first plate fixed to the left handle portion, and a protrusion fixed to the right handle portion; and
wherein after removal of the fastener, rotation of the left handle portion with respect to the first blade portion and the right handle portion allows the protrusion to line up with a slot in the first plate to thereby allow the removal of the left handle portion from the first blade portion and the right handle portion.

2. The apparatus of claim 1 wherein
after removal of the fastener, with the left handle portion oriented to be at an angle with respect to the first blade portion and the right handle portion, the left handle portion and the right handle portion are configured to be separated from the first blade portion and from each other.

3. The apparatus of claim 1 wherein
in the first state, the protrusion is substantially perpendicular to the slot of the first plate, thereby preventing the left handle portion from being separated from the first blade portion and the right handle portion.

4. The apparatus of claim 1 wherein
the protrusion is inserted through an opening in the first blade portion and through an opening in the first plate to thereby connect the second ends of the left handle portion and the right handle portion, and the intermediate part of the first blade portion, with the first blade portion sandwiched between the left handle portion and the right handle portion.

5. An apparatus comprising:
a left handle portion;
a right handle portion;
a first blade portion;
a first device;
and
a fastener;
wherein the fastener is configured to connect in a first state, first ends of the left handle portion, the right handle portion, and the first blade portion to each other, with the first blade portion sandwiched between the left handle portion and the right handle portion;
wherein the first device is configured to connect second ends of the left handle portion and the right handle portion and an intermediate part of the first blade portion;
wherein in the first state the left handle portion, the right handle portion, and the first blade portion are fixed to each other so that their orientation with respect to one another cannot be changed without disconnecting the fastener so that it no longer connects the first ends of the left handle portion, the right handle portion, and the first blade portion;
wherein removal of the fastener from the left handle portion, the first blade portion, and the right handle portion, allows the left handle portion to rotate with respect to the first blade portion and the right handle portion, while the left handle portion is connected to the first blade portion and the right handle portion;
wherein
the fastener is inserted through an opening in the first blade portion and through an opening of the left handle portion to thereby connect the first ends of the left handle portion, the right handle portion, and the first blade portion, with the first blade portion sandwiched between the left handle portion and the right handle portion, in the first state.

6. The apparatus of claim 1 wherein
the left handle portion, the right handle portion, and the first blade portion are substantially parallel to each other in the first state.

7. An apparatus comprising:
a left handle portion;
a right handle portion;
a first blade portion;
a first device;
and
a fastener;
wherein the fastener is configured to connect in a first state, first ends of the left handle portion, the right handle portion, and the first blade portion to each other, with the first blade portion sandwiched between the left handle portion and the right handle portion;
wherein the first device is configured to connect second ends of the left handle portion and the right handle portion and an intermediate part of the first blade portion;
wherein in the first state the left handle portion, the right handle portion, and the first blade portion are fixed to each other so that their orientation with respect to one another cannot be changed without disconnecting the fastener so that it no longer connects the first ends of the left handle portion, the right handle portion, and the first blade portion;
wherein removal of the fastener from the left handle portion, the first blade portion, and the right handle portion, allows the left handle portion to rotate with respect to the first blade portion and the right handle portion, while the left handle portion is connected to the first blade portion and the right handle portion; and

further comprising
a second blade portion;
wherein the first blade portion is configured to be detached from the left handle portion and the right handle portion;
wherein the second blade portion is configured to replace the first blade portion and to be attached to the left handle portion and the right handle portion;
wherein the fastener is configured to connect in a second state, first ends of the left handle portion, the right handle portion, and the second blade portion to each other, with the second blade portion sandwiched between the left handle portion and the right handle portion;
wherein the first device is configured to connect second ends of the left handle portion and the right handle portion and an intermediate part of the second blade portion;
wherein in the second state the left handle portion, the right handle portion, and the second blade portion are fixed to each other so that their orientation with respect to one another cannot be changed without disconnecting the fastener so that it no longer connects the first ends of the left handle portion, the right handle portion, and the second blade portion; and
and wherein removal of the fastener from the left handle portion, the right handle portion, and the second blade portion allows the left handle portion to rotate with respect to the second blade portion and the right handle portion, while the left handle portion is connected to the second blade portion and the right handle portion.

8. A method comprising the steps of:
fixing a left handle portion, a right handle portion, and a first blade portion together in a first state by use of fastener and a first device so that the left handle portion, the right handle portion, and the first blade portion are fixed in orientation and position with respect to each other;
removing the fastener from the left handle portion, the right handle portion, and the first blade portion; and
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Assignees

• Zhang Wei
• Master Cutlery LLC

Inventors

• Zhang Wei

Classifications

• B25G3/36

  Lap joints; Riveted, screwed, or like joints (socket, tang, or like fixings B25G3/02) · CPC title

• B26B5/00 Primary

  Hand knives with one or more detachable blades · CPC title

• B25G1/06

  reversible or adjustable for position · CPC title