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1. Field of the Invention
This invention relates to toy rockets and toy airplanes which can be made by anyone and which are launched by air pressure. This invention also relates to a simple method of generating air pressure to launch rockets and airplanes. This invention also relates to simple methods and materials to make toy rockets and toy airplanes so they can be made by anyone. This invention also relates to novel educational and recreational uses of the invention.
2. Background of the Invention
All known previous art involves complex launch systems using pumps and valves to generate air pressure to launch a rocket. The only somewhat simple system is found in U.S. Pat. No. 4,076,006 (1978) which uses a flexible air impact bulb to generate pressure. The bulb, rockets and other parts of that patent must be manufactured for that specific purpose. Previous art has very little educational value and does not permit skills in building and experimenting.
The object and advantage of this invention is to provide the user with a very inexpensive, easy to make and easily replaceable toy rockets and toy airplanes and launch system. Additional objects and advantages are to generate interest in science and math and to develop skills in building and experimenting with different designs. A further object is to provide recreation for children and adults. Another object is to provide competition among schools, clubs, groups or individuals in building and flying rockets and airplanes. Another object is to provide a new game of skill called Rocket Golf, which is played the same as golf except rockets and launch systems are used instead of golf balls and clubs.
This invention is for a very simple system of making and launching toy rockets and airplanes. These toys are used mostly for education and recreation. The rockets and airplanes are made from paper, Styrofoam, and non-toxic glue. The rockets and airplanes are made by gluing and rolling a standard size piece of paper around a piece of cpvc plumbing pipe and removing the paper tube. This tube is the body of the rocket or airplane. Rocket fins or airplane wings are made from card stock paper and glued in place while the paper tube is supported on an assembly stand. The assembly stand is made using a wood base and a short vertically mounted piece of ½ pvc pipe. The invention also describes a simple method of making the Styrofoam nose cone for the rocket and airplane.
The simple launch system consists of a 100 to 150 centimeter piece of ½ pvc thin wall plastic pipe and a plastic soda or beverage bottle to generate air pressure for launching.
Launching is done by inserting the ½, pvc pipe into the bottle neck, bending the bottle about 90 degrees at the neck and sliding the rocket or airplane over the opposite end of the pipe. The tube can then be aimed in the desired direction and by stepping on the bottle the airplane or rocket is launched.
airplane 11 consists of a rolled paper body tube 15B, a styrofoam nose cone 21 glued and taped into the paper body tube 15B at one end, and a wing 22 of any aerodynamic shape. The toy airplane 11 also consists of aerodynamic control surfaces such as a horizontal stabilizer 24 and rudder 23. The wing 22 and control surfaces 23, 24 are made from card stock paper or thin sheets of Styrofoam as found in Styrofoam dinner plates or meat trays. The wings 22 and control surfaces 23, 24 are glues to one side of the paper body tube 15B and located for proper balance and aerodynamic control.
The assembly stand may be used the same way for airplanes. The assembly stand is made by drilling a 13/16 hole in a small piece of wood 20 and pushing a short piece of a ½ pvc thin wall plumbing pipe 19 into the hole.
Advantages
From the description above a number of advantages of the simple homemade toy rockets and airplanes with launcher are evident;
The rockets, airplanes and launch system are made from readily available materials that are used in large quantities for other applications. The paper for the body tubes, fins and wings can be material that was destined for the trash or recycle box. The roll tube and launch tube are common plastic plumbing pipe. The metal nose cone cutter can be a piece of tube from a broken or recycled aluminum lawn chair. The air bulbs are common plastic soda bottles preferable one and two liter capacity. These bottles are re-inflated before each launch by blowing into the end of the attached launch tube. Each bottle should give many launches if the end is not crushed during launch.
Although the description above contains many specifications, these should not be construed as limiting the scope of the invention but as merely providing illustrations of some of the presently preferred embodiments of this invention.