499 results about "Air mattress" patented technology

The mattress (1) is made of a block of flexible polyurethane foam (4) with a density of 40 Kg / m3 or of any other density, said block being firstly cut with a cut programmable automatic machine, by the main side and then turned at a 90° degree angle by its small side. A certain amount of springs (5) is thereby formed depending on each type of mattress (1).The amount of spirals (5.1) of every spring (5) depends on the position of each spring in the mattress (1) with the purpose of varying the flexibility thereof so that the mattress (1) can perfectly adapt to the contour to of every user or so that the flexibility can remain constant throughout the entire mattress. Multiple variations can be realized while the height of the mattress remains the same (less spirals having the same spiral thickness and more base and uncut, etc.; the width of a spiral can be changed, as well as the number of spirals, the inclination of the axis of the spirals, the total height of an area-budge or cavity, etc. The upper surface of the product is covered with a viscous elastic layer (3) of polyurethane with a 50 Kg / m3 density, 4 cm thickness and threaded padding (2).

A double chambered transfer mattress is provided capable of partial deflation that that includes a top inflatable mattress and a bottom inflatable mattress that are separated by a common wall from one another. A selectable inlet / outlet valve is arranged for airflow communication between an interior chamber of the bottom inflatable mattress and a source of pressurized air. A one-way valve is positioned through the common wall so as to provide selective air flow communication between the top inflatable mattress and the bottom inflatable mattress so that when the inlet / outlet valve is opened, so as to deflate the bottom inflatable mattress, the one-way valve is actuated so as to prevent deflation of the top inflatable mattress.

An air mattress includes a top; a first fastener member positioned along at least a portion of a side edge of the mattress; a pocket formed on the top by a layer extending along the top and attached along its periphery to the air mattress, at least a portion of the layer being removably connectable to the air mattress by a second corresponding fastener member positioned along a section of the layer; and a visco-elastic pillow top removably received within the pocket. The fasteners may be zippers, hook and loop fasteners, buttons and eyelets, snap fasteners, magnets, or line connectors.

Disclosed are apparatus and methodology for controlling humidity (i.e., moisture) within and / or adjacent a coverlet associated with a multi-layer air mattress. Humidity sensors may be incorporated at selected locations within the coverlet and coupled to a controller that is configured to provide a closed-loop control signal to vary air flow rate through the coverlet to control the rate of moisture adjustment, such as removal. In part, present subject matter may include a combination of a Low-Air-Loss (LAL) topper, having a pair of humidity sensors, one of which is at an inlet to the LAL topper and the other of which is at a selected one of existing outlets of the LAL topper. Air flow through the LAL topper is kept constant, in accordance with its basic operation, while the two humidity sensors are part of a closed-loop feedback control system, which adjusts the humidity of the air being input at the inlet. Additionally portions of a closed-loop feedback control system may depend on the sensed rate of change of moisture, to facilitate more rapid response to changing moisture conditions. Separately, and not as part of the control feedback loop, a temperature sensor may be provided for simply indicating the temperature of the air relative to the LAL topper.

A patient transfer device has four casters and two counter-rotating steering wheels. The steering wheels provide a turning path whose center of curvature lies along a transverse centerline of the device. A foot pedal selectively lifts the steering wheels off the floor or brakes them. Another foot pedal at a back end of the device can lock the casters at the front end in a straight direction. The transfer table of the device may be inclined either longitudinally or transversely, and has an upper table whose edge rollers retract to introduce slack in the upper belt so that an air mattress can be inflated. The upper belt selectively disengages from the lower belt using movable, pneumatically-actuated pinch rollers. The outer surface of the upper belt is rough while the outer surface of the lower belt is smooth. The belts are constructed of a material which includes an antimicrobial agent.

A double chambered transfer mattress is provided capable of partial deflation that includes a top inflatable mattress and a bottom inflatable mattress that are separated by a common wall from one another. A selectable inlet / outlet valve is arranged for airflow communication between an interior chamber of the bottom inflatable mattress and a source of pressurized air. A one-way valve is positioned through the common wall so as to provide selective air flow communication between the top inflatable mattress and the bottom inflatable mattress so that when the inlet / outlet valve is closed, so that air continues to escape from perforations in the bottom inflatable mattress, the one-way valve is actuated so as to prevent deflation of the top inflatable mattress.