The earliest patents for gimballed devices built to carry humans dates back up to 1907 (Patent #846925Patent #846925). There were several attempts at similar machines throughout the following 80 years by various inventors. Several of them, such as the 1907 and the 1920 version, in rectangular shape. The first round-frame human gimbal set patent application however was July 1964 (Patent #3141669Patent #3141669). The Aerotrim  as it is known today  was originally conceived  in the early eighties by Helmut Suchy, an Austrian inventor, as a therapy for his ailing spine . Friends suggested its potential for gyms and hospitals (Patent #4799667Patent #Patent #4799667).  Suchy built the first prototype in his garage, attached to the walls, but it lacked general safety precautions and  decent foot attachment mechanism . Only people of a certain height could ride it. Based on a profit sharing agreement, Mr. Suchy, who unsuccessfully had applied for a patent in Austria, passed on the rights to the German entrepreneur Hermann Dittrich, who through his import-export company Contactos Trading, GmbH  at great cost  applied internationally for  patent. Mr. Dittrich also chose the name Aerotrim over Suchy’s original 3D-Fun. Needing to make it safer, he came up with handles, the overhead hand protectors made of Plexiglas  and the height-adjustable foot mechanism that allowed even children (of a minimum height) to use the machine. As a result, it even passed the German Technischer Überwachungsverein (TÜV) safety inspections. Contactos  looked worldwide for manufacturers. Aerotrims began production in Germany, Korea, Taiwan and the United States, where negotiations started to form a company named “Gyrotec” with the renowned US ski manufacturer Hart Ski Company and other investors. Contactos  launched its own coordinated ad campaignsingle-handed , first in Germany and globally over the next few years.
The earliest patents for gimballed devices built to carry humans date to 1907 (Patent #846925Patent #846925). There were several attempts to make similar machines over the next 80 years by various inventors. Several of them, such as the 1907 and the 1920 version, are rectangular in shape. However, the first patent application for a round-frame human gimbal set was made in July 1964 (Patent #3141669Patent #3141669). The Aerotrim , as it is known today , was originally conceived of in the early eighties by Helmut Suchy, an Austrian inventor, as a therapy for his ailing spine (Patent #4799667Patent #Patent #4799667). Friends suggested its potential for use in gyms and hospitals. Suchy built the first prototype in his garage, attached to the walls, but it lacked general safety precautions and a decent foot attachment mechanism , and only people of a certain height could ride it. After signing a profit sharing agreement, Mr. Suchy, after unsuccessfully applying for a patent in Austria, transferred the rights to German entrepreneur Hermann Dittrich, whose import-export company Contactos Trading, GmbH , at great cost , applied internationally for a patent. Mr. Dittrich also chose the name Aerotrim over Suchy’s original 3D-Fun. To make the device safer, he added handles, overhead hand protectors made of Plexiglas , and the height-adjustable foot mechanism that allowed even children (of a minimum height) to use the machine. As a result, it passed even the German Technischer Überwachungsverein (TÜV) safety inspections. Contactos then looked worldwide for manufacturers. Aerotrims began production in Germany, Korea, Taiwan and the United States, where negotiations began to form a company named “Gyrotec” with the renowned US ski manufacturer Hart Ski Company and other investors. Contactos personally launched its own ad campaign , first in Germany , then expanding globally over the next few years.
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