Artistic knife with spare blades
August 6, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3872591 Knife Utility knife Utility knife Ergonomic utility knife/box cutter and method of making Double-ended dual mechanism retractable blade utility knife Utility knife Blade support device for a knife Safety mechanism for preventing accidental deployment of a utility knife blade Adjustable safety utility knife with easily removable blade holder InventorApplicationNo. 09921573 filed on 08/06/2001US Classes:30/162, Sliding blade30/124, With material-holder or disposal30/125, Handle receptacle30/335, Sliding-blade assembly30/336Spring jaw typeExaminersPrimary: Shoap, Allan N.Assistant: Prone, Jason International ClassB26B 108AbstractAn artistic knife with spare blades, including a main body in which a blade seat is back and forth slidably disposed. The main body is formed with a receptacle corresponding to the blade seat for receiving multiple spare blades. Each blade has more than one engaging notch. The blade seat is provided with a transversely movable engaging block corresponding to the engaging notch of the blade for inserting therein. When the blade seat is slided forward, the blade is driven to extend out of the main body. The main body has a guide rail corresponding to the engaging block. By means of the guiding and restriction of the guide rail, in the travel of the blade pushed out by the blade seat, the engaging block is inserted into the engaging notches of the blade deeper and deeper. In returning travel, the depth by which the engaging block is inserted in the engaging notch is gradually reduced until it is slightly smaller than the thickness of the blade. Therefore, the engaging block can be truly engaged with the blade. | |
