Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1995-06-07
1997-04-15
Page, Thurman K.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
428139, 428138, B32B 310
Patent
active
056207719
ABSTRACT:
There is provided a laminated fabric comprising a sheet portion of a material compatible with human skin, the being adhered to a second sheet formed of a substantially impermeable material having perforations provided therethrough, each perforation having at least one relatively wide region and at least one relatively narrow region along its length to define an internal chamber open to a first ("inner") side of the sheet and sufficiently closed to the other ("outer") side of the sheet to permit air passing from the first to the other side of sheet to accumulate in the chamber under increased pressure prior to passing out to the other side of the sheet.
REFERENCES:
patent: 4636424 (1987-01-01), Amemiya et al.
patent: 4846164 (1989-07-01), Martz
Micro Thermal Systems Limited
Page Thurman K.
Shelborne Kathryne E.
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