Parachute deployment control

A combination comprising a model rocket having tethered-together components that include a deployment control that is carried aloft within a the model rocket together with a parachute-type rocket recovery device by a launch of the rocket, with the recovery device further including A) a heating element connected to and extending along a heat-severable reach of an elongate retainer in the form of a band of plastic material that extends closely about a canopy of a parachute in a tightly wrapped manner to retain the canopy in a compact bundle form until a delayed time after the compact bundle form is released from within the rocket whereupon the heat-severable retainer reach is heated and severed as the result of electricity being supplied to the heating element to thereby deploy the parachute canopy from the compact bundle form to thereby slow the descent of the tethered-together components of the rocket, and B) circuitry far supplying electricity to the heating element to heat and sever the retainer reach at the delayed time as the tethered-together components descend to near ground, including a battery-type source of electricity and a signal responsive electrical switch.

A combination comprising a model rocket that have tethered-together components that include, A) a parachute that is carried aloft with a the model rocket, B) an elongate retainer in the form of a band of plastic material extending about the parachute in a tightly wrapped manner that retains the parachute in a compact bundle until the elongate retainer is released, C) an electrical heating element extending along a heat-severable reach of the elongate retainer that can be supplied with electricity and thereby heated to sever the retainer and deploy the parachute from the compact bundle D) electrical circuitry including a source of electricity and an electrical switch supplying electricity to the heating element to heat and sever the heat-severable reach at a delayed time after the compact bundle has been released from the rocket and as the descent of the tethered-together components nears the around to then slow the descent of the tethered-together components of the launched rocket descend to near ground.

A model rocket saving comprising tethered together components that separate near flight apogee of the rocket to release from the rocket a recovery device that includes A) a parachute held in a compact bundle form during the release by an elongate retainer in the form of a band of plastic material extending closely about the compact bundle in a tightly wrapped manner that, after release of the compact bundle, can be severed by being heated, B) an electrically operable heating element extending adjacent a portion of the retainer for being supplied with electricity to heat and thereby sever the retainer to deploy the parachute, and C) electrical circuitry including a source of electricity and a signal responsive switch that connect the heating element to the source of electricity for operating the heating element to heat and sever the retainer and to thereby deploy the parachute from the compact bundle form in response to receipt of an operating signal at a delayed time after the release as the tethered-together components of the rocket have descended a substantial distance to near ground.