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US 10,478,977 B2Granted
Utility knife
AssigneeMartor KG
InventorMartin Rohrbach
Life of this patent
Estimating the term…
Abstract
A utility knife has a housing, a blade, and a blade support carrying the blade and supported on the housing so as to be displaceable in a straight line with the blade between a safety position, a cutting position, and a blade-change position. A torsion spring biases the blade into the safety position.
Claims11
A utility knife comprising:
- a housing;
- a blade;
- a blade support carrying the blade and supported by and slidable in the housing so as to be displaceable in a straight line with the blade between a safety position, a cutting position, and a blade-change position;
- and
- a torsion spring biasing the blade support into the safety position and having a first leg supported on different surfaces of the housing or of the blade support in the safety, cutting, and blade-change positions of the blade support.
2 more elements
A utility knife comprising:
- a housing;
- a blade;
- a blade support carrying the blade and supported by and slidable in the housing so as to be displaceable in a straight line with the blade between a safety position, a cutting position, and a blade-change position;
- and
- a torsion spring biasing the blade support into the safety position;
- a first stop face on the housing;
- a second stop face on the housing;
- and
- a contact face on the blade support and in contact with the first stop face in the cutting position and in contact with the second stop face in the blade-change position.
6 more elements
Dependencies are inferred from the claim text.