Method of making an inflatable flotation device

Details Method of making an inflatable flotation device Method of making an inflatable flotation device

1978-11-20

1980-11-11

Wityshyn, Michael G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

5449, 5455, 9 11A, 156300, 156313, 156331, 156338, B29H 703, B32B 3120

Patent

active

042331021

ABSTRACT:
A method for making a multi-chambered flotation bag for helicopters or the like comprises forming two outer panels and at least one internal panel to substantially identical contour from flat/rubberized fabric sheet, forming at least two internal transverse wall members formed from flat rubberized fabric sheet, disposing adhesion strips for tapes along selected areas adjacent the peripheries of selected panels and wall members, and adhering the panels and wall members together to form the flotation bag structure.

REFERENCES:
patent: 1603465 (1926-10-01), Hopkinson
patent: 1920961 (1933-08-01), Anderson
patent: 1970803 (1934-08-01), Johnson
patent: 3056980 (1962-10-01), Holladay
patent: 3830676 (1974-08-01), Elkins
patent: 3880693 (1975-04-01), Urlings et al.

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