Cutter rail guide, block, armature, and blade

1. An apparatus comprising:

a balloon envelope;

a cutting blade secured to a blade block;

a cutter guide rail secured above the balloon envelope; and

an arm having a first end and a second end, the arm rotatable about a pivot point, the arm secured to the blade block, wherein the second end of the arm extends past the blade block, wherein the arm is releasably secured by a release member, and wherein release of the arm from the release member allows for a rotation of the arm, wherein the rotation of the second end of the arm is guided by the cutter guide rail such that the cutting blade maintains contact with and cuts the balloon envelope during the rotation of the arm.

2. The apparatus of claim 1 , wherein the second end of the arm extends through a hole in the cutting blade.

3. The apparatus of claim 1 , wherein the cutter guide rail extends in a semi-circle.

4. The apparatus of claim 1 , wherein the cutter guide rail includes a downwardly extending entrance ramp.

5. The apparatus of claim 1 , wherein a portion of the balloon envelope adjacent a cutting line of the cutting blade is adhered to a bottom of a plate.

6. The apparatus of claim 1 , wherein the arm is releasably secured to the release member by having the blade block releasably secured to the release member.

7. The apparatus of claim 6 , wherein the blade block is releasably secured to the release member by a bolt extending through the release member and extending into the blade block.

8. The apparatus of claim 7 , wherein the bolt is threaded into the blade block.

9. The apparatus of claim 7 , wherein a squib is positioned within the release member adjacent the bolt.

10. The apparatus of claim 9 , wherein the bolt is severed when the squib is exploded, and the blade block is released from the release member allowing the arm to rotate.

11. The apparatus of claim 1 , further including means for releasing the arm from the release member.

12. The apparatus of claim 1 , wherein the arm is releasably secured to the release member by an actuated trigger mechanism.

13. The apparatus of claim 9 , wherein the bolt has a reduced diameter section adjacent the bolt.

14. The apparatus of claim 1 , wherein a rotary actuator is used to rotate the arm.

15. A method of cutting a balloon envelope to release lift gas from the envelope, comprising the steps of:

providing a balloon envelope, a cutting blade secured to a blade block, a cutter guide rail secured above the balloon envelope, and an arm having a first end and a second end, the arm rotatable about a pivot point, the arm secured to the blade block, wherein the second end of the arm extends past the blade block, wherein the arm is releasably secured by a release member;

receiving a signal to release the arm from the release member;

releasing the arm from the release member;

rotating the arm; and

guiding the second end of the arm with the cutter guide rail such that the cutting blade maintains contact with and cuts the balloon envelope during the rotation of the arm.

16. The method of claim 15 , wherein the arm is releasably secured to the release member by a bolt extending through the release member into the blade block.

17. The method of claim 16 , wherein the step of releasing the arm from the release member includes exploding a squib positioned in the release member adjacent to the bolt extending through the release member causing the bolt to sever, thereby releasing the arm from the release member.