Stock material or miscellaneous articles – Sheet including cover or casing – Including elements cooperating to form cells
Patent
1975-02-28
1977-01-25
Dier, Philip
Stock material or miscellaneous articles
Sheet including cover or casing
Including elements cooperating to form cells
428178, 5345R, 5350, A47C 2708
Patent
active
040052362
ABSTRACT:
A multicelled structure which may be used as a body support or other cushioning device has inflatable cells against which a supported or cushioned body bears. The structure is formed from a flexible material on mandrels which have a fluted or other shaped configuration and spaced apart. This prevents the material which is in a soft or uncured condition from bridging adjacent cells during the forming operation. The fluting or shape on the resulting cells is configured to enable the side walls of adjacent cells to closely approach or contact each other when the cells are expanded by internal fluid pressure so that the end walls of the cells form a generally continuous surface.
REFERENCES:
patent: 2461270 (1949-02-01), Habib et al.
patent: 3112956 (1963-12-01), Schick et al.
patent: 3251076 (1966-05-01), Burke
patent: 3605145 (1971-09-01), Graebe
patent: 3740777 (1973-06-01), Dee
patent: 3813716 (1974-06-01), Francis
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