Stock material or miscellaneous articles – Structurally defined web or sheet – Longitudinal or transverse tubular cavity or cell
Patent
1997-07-25
2000-04-11
Cole, Elizabeth M.
Stock material or miscellaneous articles
Structurally defined web or sheet
Longitudinal or transverse tubular cavity or cell
442 61, 602 21, B32B 320
Patent
active
060486023
ABSTRACT:
A gel cushion, and a method of manufacturing same, in accordance with the present invention generally includes the steps of cooling a mold to a selected temperature, disposing a porous stretchable fabric over the cooled mold, depositing a volume of gelable liquid within the mold such that the cooled mold enables pores of the fabric to fill with gel without penetration therethrough, applying a vacuum between the fabric and the mold, allowing the gel to set and solidify and removing the solidified gel having the fabric fixed thereto in order to obtain the gel cushion. Another embodiment of the invention includes the step of filling a second matching mold and bonding the two volumes of gelable liquid together in order to make a fabric enclosed gel cushion. Yet another embodiment of the invention includes the step of depositing air filled bags or balloons on the coated fabric prior to injecting the additional gel in order to make a gel cushion having voids therein.
REFERENCES:
patent: 5340352 (1994-08-01), Nakanishi et al.
patent: 5497789 (1996-03-01), Zook
patent: 5756184 (1998-05-01), Yates
Cole Elizabeth M.
Hackler Walter A.
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