Beds – Bedclothing – And means to facilitate changing thereof
Patent
1991-01-11
1991-07-30
Grosz, Alexander
Beds
Bedclothing
And means to facilitate changing thereof
5448, 600 9, A47C 2722
Patent
active
050350170
ABSTRACT:
A magnetic sleeping mat having a magnetic effect and a manual pressure effect; comprising a foamed synthetic resin board having large projection formed on its upper surface and further having small projections on its upper surface and bottom surface; a first fibrous sheet having holes and superposed on the upper surface of the foamed synthetic resin board so as to be fitted in its holes with the large projections of the foamed synthetic resin board and to be contacted with the small projections of the board; a second fibrous sheet having holes and superposed on the upper surface of the first fibrous sheet so as to be fitted in its holes with the large projections of the board; permanent magnets arranged on the second fibrous sheet; and a cover cloth which covers the laminated assembly consisting of the foamed synthetic resin board, the first fibrous sheet and the second fibrous sheet containing the permanent magnets.
REFERENCES:
patent: 4143435 (1979-03-01), Masuda
patent: 4330892 (1982-05-01), Fukushima
patent: 4509219 (1985-04-01), Yagi
patent: 4924542 (1990-05-01), Yamaguchi
Grosz Alexander
Nippon Athletic Industry Company
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