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Harald Aadland Patents |
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Inventor: Aadland; Harald
Address: Nesttun, NO
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6761233 |
Apparatus for propulsion in elongated cavities |
July 13, 2004 |
| An apparatus for propulsion inside an oblong cavity, such as pipes or the like, is disclosed. The apparatus is characterized by comprising a central rotating part comprising an inclined wheel construction arranged to thrust towards the inner wall of the cavity, in that the central rotati |
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