Patent ID: 11919186
Assignee: nan
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A retractable cutting device comprising:
a tubular elongate housing including a bottom retainer at a first end thereof and a top retainer at a second end thereof;
a blade assembly disposed longitudinally within the housing, the blade assembly including a blade connected to a first end of a cam piston, a plunger disposed proximate a second end of the cam piston, and a thrust device disposed between the cam piston and the plunger; and
a spring mechanism disposed within the housing, and between a blade guide and a lower edge of the cam piston,
wherein the blade assembly is movable along a longitudinal axis of the housing between a retracted position and an extended position, and
wherein, in a state where the blade assembly is moving from the retracted position to the extended position, the blade is guided, in part, by a slip contact between the blade and the blade guide.