Slitter device
AssigneeSpellbound Development Group, Inc.
InventorEarl Votolato
Life of this patent
Estimating the term…
Abstract
In a slitter, the combination comprises a blade having a cutting edge; a holder for the blade, including a handle, and a terminal on the handle retaining the blade with the blade edge protruding; a shield carried by the holder proximate the terminal, for movement between extended position in which the blade is protected, and retracted position in which the blade edge is exposed for cutting, there being a torsion spring carried by the holder and having an arm biasing the shield toward extended position, the spring arm projecting in a hollow defined by the shield; and the shield extending parallel to the blade, at opposite sides thereof.
Claims24
In a slitter, the combination comprising:
- a) a blade having a cutting edge,
- b) a holder for the blade, including a handle, and a terminal on the handle retaining the blade with the blade edge protruding,
- c) a shield carried by the holder proximate said terminal, for movement between an extended position in which the blade is protected, and a retracted position in which the blade edge is exposed for cutting,
- d) there being a torsion spring carried by the holder and having an arm biasing the shield toward the extended position,
- e) the spring arm projecting in a hollow defined by the shield, the shield extending parallel to the blade, at opposite sides thereof.
In a slitter, the combination comprising:
- a) a slitter blade and a handle carrying said blade,
- b) a shield carried by the handle and pivotable between an extended position in which the shield extends in a protective position relative to the blade, and a retracted position, in which the blade is exposed for slitting,
- c) a spring located to urge the shield toward the extended position,
- d) the spring having an elongated arm, and the shield having a projecting portion defining a hollow to increasingly receive the spring arm as the shield pivots toward the extended position,
- e) said projecting portion of the shield adapted to be finger-gripped to effect shield pivoting.
In a slitter, the combination comprising:
- a) a blade having a cutting edge,
- b) a holder for the blade, including a handle, and a terminal on the handle retaining the blade with the blade edge protruding,
- c) a shield carried by the holder proximate said terminal, for movement between an extended position in which the blade is protected, and a retracted position in which the blade edge is exposed for cutting,
- d) and a guide carried by the slitter to slidably engage one surface of an object to be slit while the blade projects in slitting relation to another surface of the object,
- e) the guide having a guide surface and the blade defines a plane generally parallel to said guide surface, the guide carried for movement with the shield between its extended and retractable positions.
A method of slitting an object, which includes:
- a) providing a single blade having a cutting edge,
- b) providing a holder for the blade, including a handle, and a terminal on the handle retaining the blade with the blade edge protruding,
- c) providing a shield carried by the holder proximate said terminal, for movement between an extended position in which the blade is protected, and a retracted position in which the blade edge is exposed for cutting, and providing a torsion spring carried by the holder and biasing the shield toward said extended position, the spring having one arm projecting in a zone defined by the shield, the shield extending parallel to the blade,
- d) providing a guide carried to slidably engage one surface of an object to be slit while the blade projects in slitting relation to a second surface of the object,
- e) moving said holder relative to said object to cause said guide to slidably engage said one surface of the object while the blade projects in slitting relation to said second surface of the object.
Dependencies are inferred from the claim text.