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US 4,971,591 AGranted
Vehicle with vacuum traction
OwnerRoni Raviv, Zvi Davidovitzinventors
Life of this patent
Estimating the term…
Abstract
A vehicle comprising a chassis and slidable vacuum apparatus mounted on the chassis and arranged for slidable vacuum seal engagement with a support surface.
Claims15
A vehicle comprising:
- a chassis;
- and
- slidable vacuum means mounted on the chassis and arranged for slidable vacuum seal arrangement with a support surface, said slidable vacuum means being slidable with respect to the support surface and comprising:
- a suction cup mounted onto the chassis;
- and
- flexible sheet material having at least one aperture formed therein and disposed underlying said suction cup and intermediate said suction cup and the support surface, said flexible sheet material being slidable with respect to the support surface.
3 more elements
Dependencies are inferred from the claim text.