Project Title:

Improved Seaming Method for Reinforced Balloon Films

94-1		09.14	9936

Improved Seaming Method for Reinforced Balloon Films

Abstract:

NASA is planning a new generation of balloons built of fiber 
reinforced materials. To effectively use such materials, panels 
must be joined together with a high strength joint. Lap joints have 
been used in the past for reinforced balloon materials, but that 
method is not considered applicable to the new materials in 
development. Ideally, fibers should be joined directly between gore 
panels; a process which has not previously been practical. An 
existing tool, designed for another application, can make such 
fiber-to-fiber joints. It is seen as the precursor for a future 
balloon production machine. The innovation will proceed using the 
underlying technology of that tool to establish feasibility and 
practicality of using its operating principle. Goals will be to 
demonstrate joint strength, uniformity, dimensional accuracy and 
potential for economic fabrication. Given success in those goals, 
and followed by machine development effort, it will be possible to 
manufacture reinforced balloons which are stronger, lighter and 
much less costly than previous reinforced types.

Reinforced plastic film materials are commonly used in industrial 
applications. The requirements are, of course, substantially less 
demanding than for scientific balloon use. 
Neverthless, there are similar problems in joining panels of 
material together. The proposed development would offer a new 
and improved method for joining industrial materials and make 
it possible to market a new range of products.

Key Words

Rekwin Co.
2805 Poplar Dr.
Sioux Falls, SD 57105