Stock material or miscellaneous articles – Structurally defined web or sheet – Edge feature
Patent
1982-10-14
1984-10-30
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Edge feature
5 61, 428192, 428253, 428255, B32B 2302
Patent
active
044799934
ABSTRACT:
Patient support means comprise a net for use with a net bed having rotary shafts on to which the ends of the net are wound, so that in use the patient is supported on the net which is slung between the shafts. The net is of knitted form and manufactured from a heat-settable thermoplastics material which is heat set to provide satisfactory memory such that it does not take a substantially permanent set under normal patient loading. The knitted material of the net has a lengthwise extensibility of between 17% and 35%, a widthwise extensibility of between 4% and 12% and a ratio of lengthwise to widthwise extensibilities of between 3 and 6.
REFERENCES:
patent: 3133852 (1964-05-01), Crane et al.
patent: 3185612 (1965-05-01), Durham
patent: 3316117 (1967-04-01), Clifford et al.
patent: 4270234 (1981-06-01), James
Bell James J.
James Industries Ltd.
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