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US 4,424,600 AGranted
Adjustable firmness mattress pillow top
AssigneeSimmons U.S.A. Corporation
InventorMilton A. Callaway
Life of this patent
Estimating the term…
Abstract
A mattress construction in which the firmness of the top surface is selectively adjustable. A mattress body provides the primary support for a person lying on top thereof. A removable pillow top covers the mattress body, and is removably fastened thereto along its peripheral edges. A relatively thin fluid inflatable cushion is positioned beneath the removable top such that the pressure in the cushion can be varied to alter the firmness of the mattress top surface.
Claims12
An adjustable mattress construction, comprising:
- a. a mattress body designed to provide the primary support for a person lying on top thereof;
- b. a pillow top removably fastened to said mattress body;
- said pillow top having a bottom liner detachably fastened thereto and
- c. a relatively thin, fluid inflatable cushion pressurizable to a variable firmness removably positioned within said pillow top to permit adjustment of the firmness of said pillow top said inflatable cushion being arranged between the lower surface of said pillow top and said bottom liner, said pillow top and inflatable cushion substantially covering the top of the mattress body.
1 more element
Dependencies are inferred from the claim text.