Low pressure hoisting air cushion having an airtight chamber wit

Details Low pressure hoisting air cushion having an airtight chamber wit Low pressure hoisting air cushion having an airtight chamber wit

1987-02-12

1990-03-13

Hartman, Judy

Implements or apparatus for applying pushing or pulling force

Fluid pressure

Vehicle attached

254 89H, B66F 324

Patent

active

049077813

ABSTRACT:
The low-pressure hoisting air cushion has an airtight chamber the walls of which (20) consist of a coated fabric which is elastic. Inserted into a hole (22) of the wall is a nozzle (24) of a valve. It consists of a tube socket accessible from the outside (26) and a ring-fastener (28) fitted internally. A compensation ring (34) is fitted between the ring-fastener (28) and the wall (20). It has a greater diameter than the ring-fastener (28) and is joined on one side to the ring-fastener (28) and to the wall on the other side (20) in such a way via a ring shaped joining area that there is created between both of them a circular shaped compensation zone (36) to which the compensation ring (34) is not attached on either side (FIG. 1).

REFERENCES:
patent: 1486241 (1924-03-01), Gibson
patent: 1492158 (1924-04-01), Caretta
patent: 1752101 (1930-03-01), Meutsch
patent: 3026541 (1962-03-01), Murat
patent: 4275869 (1981-06-01), Clements

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