Retractable knife with safety device
OwnerYang-Fu Chenginventor
Life of this patent
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Abstract
A retractable knife with a safety device to prevent the knife from being inadvertently extended once retracted, the knife comprises a blade having a first and second grooves on the opposite sides of the blade; a flat handle means including a first handle and a second handle with the blade pivotally disposed at and between the front ends of the first and the second handles in a first position for forming a receiving space; and a safety button having an arc member disposed at and between a second position on the first and the second handles adjacent to the first position. The safety button is operative to either insert the arc member into the first groove in an extended position of the blade or the second groove in the retracted position of the blade, thus locking the blade in the either positions.
Claims10
A retractable knife with a safety device to prevent said knife from being inadvertently extended once retracted, said knife comprising:
- a blade having a groove means;
- a flat handle means including a first handle and a second handle with said blade pivotally disposed at and between front ends of said first and said second handles in a first position for forming a receiving space;
- and
- a safety button pivotally disposed at and between a second position on said first and said second handles adjacent to said first position;
- wherein, in a retracted position of said blade, said safety button is operative to rotate to insert into said groove means, thus locking said blade in said retracted position.
Dependencies are inferred from the claim text.