Paracord cutter
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorJohn Bales
Life of this patent
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Abstract
A paracord cutter mechanism includes a shuttle tube extending between first and second ends. A paracord aperture is formed through the tube proximate the first end thereof. A rod is threadingly engaged into the first end of the tube and a cutting board formed at a distal end thereof. A cutter shuttle is configured to travel from the second end of the tube toward the first end of the tube after a pyrotechnic explosive cap is detonated. The cutter shuttle severs a paracord after engaging at a sufficiently high speed and forcing the paracord into the cutting board. A parachute can be deployed and then detached by severing different paracords.
Claims20
A paracord cutting apparatus comprising:
- a paracord shuttle tube extending between first and second ends;
- a paracord aperture formed through the shuttle tube proximate the first end thereof;
- a rod engaged with the first end of the shuttle tube;
- a cutting board formed at a distal end of the rod;
- a cutter shuttle configured to travel within the shuttle tube;
- an igniter connected with the shuttle tube proximate the second end thereof;
- and
- wherein the cutter shuttle includes barrel with a protruding lance extending therefrom sized to fit within the cutting board of the rod.
A parachute release device comprising:
- a shuttle tube extending between first and second ends;
- a paracord aperture formed through the tube proximate the first end thereof;
- a threaded rod threadingly engaged into the first end of the tube;
- a cutting board formed at a distal end of the threaded rod;
- wherein the paracord aperture and the cutting board is formed with a machining process at the same time such that the paracord aperture in the tube and the cutting board is in alignment after assembly;
- a cutter shuttle configured to travel from the second end of the tube toward the first end of the tube;
- an igniter engaged with the tube proximate the second end;
- and
- a pyrotechnic explosive cap operably connected to the igniter.
A method for releasing a parachute comprising:
- Inserting a paracord through an aperture in a shuttle tube;
- igniting an explosive device in the shuttle tube;
- accelerating a cutter shuttle in the shuttle tube toward the paracord with the explosive force generated by the explosive device;
- forcing the paracord into a cutting board with a lance extending from the cutter shuttle;
- and
- severing the paracord with a cutter edge formed on the lance.
A paracord cutting apparatus comprising:
- a paracord shuttle tube extending between first and second ends;
- a paracord aperture formed through the shuttle tube proximate the first end thereof;
- a rod engaged with the first end of the shuttle tube;
- a cutting board formed at a distal end of the rod;
- a cutter shuttle configured to travel within the shuttle tube;
- an igniter connected with the shuttle tube proximate the second end thereof;
- and
- wherein the cutting board includes a pair of ears with a slot formed therebetween and a base wall axially aligned with a forward wall of the paracord aperture.
Dependencies are inferred from the claim text.