Cone shaped inflatable bag for lifting a load

Details Cone shaped inflatable bag for lifting a load Cone shaped inflatable bag for lifting a load

1990-03-14

1991-11-26

Bucci, David A.

Land vehicles: dumping

Miscellaneous

Vibrator means to facilitate removal of material

254 93HP, 298 10, 298 22R, 298 22D, 414469, 414917, B60P 116, B66F 335

Patent

active

050677748

ABSTRACT:
An inflatable bag (17) for use in exhaust powered tippers is constructed from blanks of flexible air tight material using a side wall template (10) and end wall templates (11, 12). The blanks are made so that the finished bag when fully inflated assumes an oblique cone-like shape (17) with rounded ends (19, 20). The side wall material is preferably a fabric having waft and weft fibres of uniform tensile strength so that the tension in the side wall is in the longitudinal direction as the bag inflates in order to reduce the tendency of the bag to rotate on its couplings. The invention can be provided in kit form where the bag is coupled for limited movement to load transmitting end plate (21, 22) for retro fitting the bag to a vehicle.

REFERENCES:
patent: 2644449 (1953-07-01), Champagne
patent: 3324917 (1967-06-01), Schirtzinger
patent: 3510142 (1970-05-01), Erke
patent: 3659899 (1972-05-01), Phillips et al.
patent: 3784255 (1974-01-01), Smock
patent: 4503558 (1985-03-01), Lief et al.
patent: 4572579 (1986-02-01), Saito
patent: 4762298 (1988-08-01), Wood

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