Air cushion lifting device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 30, 1981
Grant Date -
N/A
app pub date -
Jan 2, 1979
filing date -
Jan 5, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lifting cushion apparatus is equipped with five inflatable compartments. Each of the compartments extends the full length of the cushion and is connected to adjacent compartments by air ways. Several cushions may be connected to a common source of compressed air. The cushions may be stacked with the compartments interconnected in the vertical direction by apertures. In use, a load supported on the lifting cushion apparatus remains substantially stable as the device is inflated to elevate the load.
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