Beds – Bedclothing – And means to facilitate changing thereof
Patent
1992-07-31
1995-08-01
Saether, Flemming
Beds
Bedclothing
And means to facilitate changing thereof
5458, 5420, 5656, A47C 2708
Patent
active
054370680
ABSTRACT:
An inflatable air mattress having a generally rectangular mat portion that is foldable or bendable in multiple directions in a fully inflated condition. The mat portion includes rows of generally sinusoidal seals extending transversely across the mat portion. Alternating rows of the sinusoidal seals are uniformly shifted out of phase by a range of about 1/8 to 3/8 of the repeating period, or a phase shift of from about .pi./4 radians to about 3.pi./4 radians, and most preferably by a phase shift of about .pi./2 radians. Alternating rows of inflation chambers are formed by the sinusoidal seals with enlarged body portions and neck portions of reduced thickness, which form natural fold lines in the mat portion when the mat portion is inflated. The mat portion is bendable longitudinally, transversely and obliquely to be rollable and foldable, and to permit the mat portion to cradle the torso and extremities of a person reclining on the inflatable mattress in water.
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Pending U.S. patent application, Ser. No. 07/923,224 filed on Jul. 31, 1992, (CIP) of pending application having Ser. No. 07/896,469 filed on Jun. 30, 1992, see p. 2, lines 16 to 33.
Christopher John S.
Intex Recreation Corp.
Makous David N.
Saether Flemming
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