Abstract
A plastic sheet that can be formed into a cylinder or truncated cone and attached to a pressure vessel by use of integral self-adhesive tabs. The cylinder or truncated cone is then used as an extension and structure for the attachment of rocket fins.
Claims
1. A plastic water rocket fin attachment system comprising: a flat sheet of flexible plastic configured to be attached to a plastic drink bottle, said flat sheet comprising a top edge, a first side edge, a second side edge and a bottom edge, wherein said sheet comprises: a plurality of evenly spaced tabs along said top edge, each tab having adhesive thereon, an adhesive strip along said first side edge, a plurality of evenly spaced fin target boxes printed along said bottom edge, wherein said fin target boxes are configured to guide a user as to where to attach fins to the sheet, and a fill line printed horizontally across said sheet, wherein said fill line is configured to guide a user as to a recommended amount of water to be used to fill the plastic drink bottle; and a plurality of fins configured to be attached to the fin target boxes using adhesive.
2. The plastic water rocket fin attachment system of claim 1, further comprising a plastic drink bottle.
3. The plastic water rocket fin attachment system of claim 1, further comprising a nose cone configured to be attached to the bottom of the plastic drink bottle.
4. The plastic water rocket fin attachment system of claim 1, wherein said tabs are integral to said flat sheet.
5. The plastic water rocket fin attachment system of claim 1, wherein said tabs are generally semicircular in shape.
6. The plastic water rocket fin attachment system of claim 1, wherein said tabs comprise removable paper backing covering said adhesive.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) In the included figures the fin attachment system is shown as a flat sheet, formed into a cylinder, attached to a plastic bottle, and with fins and nose attached in a rocket configuration.
(2) FIG. 1 is a flat sheet view of one embodiment of a fin attachment system.
(3) FIG. 2 is an isometric view of one embodiment of a fin attachment system formed into a cylinder.
(4) FIG. 3 is a view of one embodiment of a fin attachment system attached to a plastic drink bottle
(5) FIG. 4 is a view of one embodiment of the fin attachment system with fins and nose attached to a plastic bottle in a rocket configuration.
(6) FIG. 5 is an isometric view of one embodiment of a rocket.
DETAILED DESCRIPTION OF THE INVENTION
(7) FIG. 1 is a plan view of the fin attachment system (100). The fin attachment system consists of a transparent plastic sheet (1) including an adhesive strip (2) and multiple tabs (3) with adhesive (4). A water fill line (5) is pre-printed at the location shown. The width (6) is sized to match the circumference of a plastic drink bottle. The overlap (7) containing adhesive strip (2) is used for forming the plastic sheet (1) into a permanent cylinder to fit tightly around a plastic drink bottle. The fin target box (8) is used to properly align stabilizing fins.
(8) FIG. 2 is an isometric view of the transparent plastic sheet (1) formed into a cylinder (200) held together by adhesive strip (2). When placed over a plastic drink bottle the cylinder (200) is attached using tabs (3) and adhesive (4). The water fill line (5) represents the recommended water amount for rocket flight. The fin target box (8) provides a target location for proper alignment of fin. Only one fin target box is visible. Any number of evenly spaced boxes can be preprinted on the plastic sheet (1) as required for stable rocket flight.
(9) FIG. 3 is an assembly view of the plastic sheet (1) formed into a cylinder using an adhesive strip (2) and attached to plastic drink bottle (8) using tabs (3) and adhesive (4) to make the foundation for the rocket assembly (300) ready for attachment of a nose cone and fins.
(10) FIG. 4 is an assembly view of a complete rocket (400). The rocket is assembled by attaching a plastic sheet (1) formed into a cylinder using an adhesive strip (2) and secured to a drink bottle (8) using tabs (3) with adhesive (4). Nose cone (9) is attached to the bottom of drink bottle (8) and fins (10) are attached to the plastic sheet (1) using adhesive (11).
(11) FIG. 5 is an isometric view of a complete rocket (400) showing the plastic sheet (1) formed into a cylinder and attached to the plastic drink bottle (8). Fins (10) are attached to the plastic sheet (1) and the nose (9) is attached to the bottom of the bottle (8) which is now the top of the rocket.
