"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7424757 | Disposable sleeping bag A disposable or limited use sleeping bag kit including a sleeping bag made of a multi-layered material, an inflatable pillow and storage pouch from which air may be evacuated. The layered material of the sleeping bag may be made of an inner layer for contacting a us... | 09/16/2008 |
| 7318244 | Fluid-inflatable pillow A pillow for supporting at least one user's head and neck, the pillow having fluid-inflatable first and second chambers disposed about corresponding portions of the perimeter of the pillow. The first chamber has a maximum cross-sectional dimension when inflated that... | 01/15/2008 |
| 7140056 | Inflatable pillow for a chair or tub An inflatable beach pillow with a pocket to slip over a beach chair and having both water and air compartments is furnished with suction for supporting the pillow from the side of a tub so that it will serve as a combination chair pillow and tub pillow. The suction ... | 11/28/2006 |
| 7069609 | Inflatable liquid furniture An apparatus has a first section having a hollow interior that is filled with air, and a second section attached to the top of the first section and having a hollow interior that retains a liquid. ... | 07/04/2006 |
| 7017216 | Bladder assembly and method of manufacturing same A waterbed having inside air cushion and method of manufacturing same is disclosed. The method comprises forming a watertight bladder having valve means thereon, forming an inflatable air cushion inside the watertight bladder, forming at least one air valve extended... | 03/28/2006 |
| 7013513 | Waterbed structure A waterbed structure according to the invention comprises a water-containing body, long air protection borders, and a bed housing having a frame-shaped protection accommodating chamber. Each of the long air protection borders has transverse pull strips at a side the... | 03/21/2006 |
| 6952851 | Mattress with transparent cover A sleeping mattress construction provides a mattress cover that is fabricated from a transparent material so that the interior of the mattress may be visualized to prevent concealment therein of contraband. In one embodiment the mattress is an air mattress formed of... | 10/11/2005 |
| 6035470 | Waterbed with an air bag tube having a positioning piece A waterbed system is provided. The waterbed system comprises a water fillable bed mattress, a plurality of transverse partitions, an air bag unit, and a bed protecting cover. The plurality of transverse partitions serve to dissipate the water disturbances... | 03/14/2000 |
| 5845353 | Water bed with internal air filled tubes An improvement for a water bed includes a pair of water bed mattresses housed in a bed cover. There is a heat insulating foam or air bag sandwiched between the two water bed mattresses. Each water bed mattress has a plurality of transverse partitions to r... | 12/08/1998 |
| 5802739 | Complex-contoured tensile bladder and method of making same A complex-contoured tensile bladder and method of making same in which a bladder comprises an envelope formed from two outer barrier layers surrounding a tensile element formed of two inner sheets. The inner sheets are attached to one another along select... | 09/08/1998 |
| 5794287 | Water bag of a water bed A water bag for a water bed, including a hollow shell dividing into two inflating chambers at two oposite ends and a plurality of transverse water chambers between the inflating chambers, and a plurality of air bags longitudinally mounted in the transvers... | 08/18/1998 |
| 5669091 | Structure of water bed A water bed which includes a soft frame; a peripheral air bag mounted within the soft frame; a water bag mounted within the soft frame and surrounded by the peripheral air bag, the water bag comprising three pairs of opposing plastic lining walls sealed t... | 09/23/1997 |
| 5490295 | Water mattress and air mattress construction A water mattress includes a closeable vinyl envelope for receiving water, the vinyl envelope having a top, a bottom, and a plurality of sides, the sides being disposed in opposing pairs. A plurality of double-walled members extend from the top to the bott... | 02/13/1996 |
| 5367727 | Flotation bed with enhanced postural support A waterbed structure, in which added lumbar support is provided by a padded cover atop the bag (which also provides extra thermal insulation and padding). The padded cover includes a sheet of convoluted foam which covers essentially the full length of the... | 11/29/1994 |
| 5107557 | Waterbed mattress with air cushion A waterbed mattress includes a vinyl watertight water bladder covered by an inflatable air cushion. In one embodiment, the top of the bladder forms the bottom surface of the air cushion, although the bottom surface of the air cushion may also be a separat... | 04/28/1992 |
| 5072469 | Waterbed mattress with air cushion A waterbed mattress includes a vinyl watertight water bladder covered by an inflatable air cushion. The air cushion is composed of two layers of vinyl, sealed around the edges. The mattress further includes an inflable air bladder, between the air cushion... | 12/17/1991 |
| 5065465 | Water mattress for a therapy water bed An arrangement in a water mattress (1) for a water bed, the water mattress (1) comprising a water bag (2) made from a flexible and water tight sheet material, which is provided in a frame (3) of a resilient material, intended to be supported, in use, by a... | 11/19/1991 |
| 5044030 | Multiple layer fluid-containing cushion A cushion is provided with a flexible wall means for defining a plurality of elongated, parallel, flexible tubes for containing fluid. The tubes include a middle row of tubes positioned between a top and bottom row of tubes. The tubes in each row are in i... | 09/03/1991 |
| 4961237 | Device for reducing wave motion in a waterbed mattress A device for reducing the wave motion in a waterbed mattress which provides optimum firm and conforming feel to the user, while not promoting fungi or algae growth and being capable of allowing the mattress to be substantially completely drained. The wave... | 10/09/1990 |
| 4901386 | Air adjustable water mattress An air adjustable waterbed mattress which is adapted to support one or more persons on a sleeping surface. An air chamber unit is contained within a liquid-filled bladder and extends from one side of the bladder toward the other. On inflation, the air cha... | 02/20/1990 |
| 4882800 | Flotation mattress The flotation mattress includes an outer cover which defines an enclosed inner area divided into three sequential sections by transverse dividing walls. Each section includes alternating water columns and ventilation chambers arranged across the section b... | 11/28/1989 |
| 4766629 | Ventilated flotation mattress The flotation mattress includes an outer cover which defines an enclosed inner area divided into three sequential sections by transverse dividing walls. Each section includes alternating water columns and ventilation chambers arranged across the section b... | 08/30/1988 |
| 4727607 | Water bed A water bed, comprising a box opening upwards and a watertight, closed bog placed in said box. The upper side of said bag consists of a flexible, elastic material the edge portions of which are provided with securing means intended for releasable engageme... | 03/01/1988 |
| 4638518 | Water bed mattress A water bed mattress made of a water proof, flexible material that has tensile strength, comprising at least three chambers provided with valves, one chamber being divided into an upper and a lower chamber portion, said lower chamber portion being filled ... | 01/27/1987 |
| 4615060 | Corner chambers for a floatation sleep system A floatation sleep system of a construction which facilitates attaching and retaining bedclothes thereto. The floatation sleep system includes a flexible bladder having opposed substantially planar rectangular surfaces and marginal perimeter surfaces inte... | 10/07/1986 |
| 4558476 | Flotation type apparatus and method for supporting a load A flotation type apparatus used to support loads is disclosed, as well as a method for supporting a load with a flotation apparatus. The basic configuration of the apparatus is comprised of three major components, namely, a fluid filled envelope, a resili... | 12/17/1985 |
| 4501036 | Floatation sleep system An improved floatation sleep system for supporting a body. The improved floatation sleep system has a first chamber adapted to contain a liquid and a second chamber adapted to contain pressurized air. The second chamber surrounds the perimeter of the firs... | 02/26/1985 |
| 4479275 | Waterbed mattress with functionally nonredundant inner bladder means for wave attenuation An improved waterbed mattress with adjustable hydrostatic wave absorption comprising an outer water-inflatable bag-like enclosure provided with an inner wave-absorbing water bladder. When a user sits or lies on a conventional waterbed an undesirable wave ... | 10/30/1984 |
| 4422194 | Fluid filled body supporting device A body supporting device comprises a first plastic section having oppositely disposed inner and outer surfaces. The outer surface is disposed above the inner surface and permanently defines a plurality of closely spaced regions of like size and contour wh... | 12/27/1983 |
| 4349926 | Waterbed mattress with inflatable margins A waterbed mattress adapted to fit within a rigid frame comprises a water-containing main chamber and at least one supplemental chamber along the perimeter of the main chamber for containing a fluid giving structural rigidity to the perimeter, particularl... | 09/21/1982 |
| 4310936 | Water mattress with internal damping means A water mattress has a portion of its volume occupied by air or gas filled bodies which lower the total mattress weight and inhibit the under damped natural harmonic motion typical of conventional water mattresses. A method of fabricating the water mattre... | 01/19/1982 |
| 4301560 | Waterbed mattress An improved adjustable waterbed mattress with hydrostatic wave absorption comprising a water-inflatable bag-like enclosure containing therein a non-woven or very loosely woven expanded fiber product, unbonded or fixed with a binder to the same or another ... | 11/24/1981 |
| 4247963 | Liquid support construction A support construction includes two different-size sheets, the smaller one being sealed along all of its margins to the larger one, and the assembly is folded over, the smaller sheet being on the inside while overlapping margins of the larger sheet are se... | 02/03/1981 |
| 4241465 | Waveless waterbed mattress Waterbed mattress having an internal honeycomb baffle structure for preventing undesired wavelike motion of the water within the mattress. The honeycomb structure is detached from the top wall so that it does not interfere with the normal flotation suppor... | 12/30/1980 |
| 4187569 | Water mattress construction A water mattress construction which includes an interior perimetrical air chamber comprises three similar web portions of polyvinyl material or the like. The mattress is formed by first securing an air valve through the top sheet near the edge thereof. A ... | 02/12/1980 |
| 4181990 | Perimeter support for a waterbed mattress An improved perimeter support for a waterbed mattress. Sleeves are fixed to the liquid-containing bladder to be co-extensive with the marginal edge of the bladder. The sleeves are joined externally to the bladder so that the interconnecting seams are not ... | 01/08/1980 |
| 4168555 | Water mattress with dampening construction A water mattress having a portion of its volume occupied by air or gas filled bodies lowers the total mattress weight without sacrificing its desirable characteristics. The gas filled bodies comprise independent, elongate, parallel chambers having sidewal... | 09/25/1979 |
| 4150447 | Mattress construction In a mattress construction, a first flexible bag having a first cavity encloses a separate second flexible bag having a second cavity and a separate third flexible bag having a third cavity and extending around the periphery of the second bag. A first val... | 04/24/1979 |
| 4121310 | Flotation support system with fluid accumulation means A flotation support system is disclosed, which includes a generally rectangular air frame, defined by a tubular air-filled member, which member surrounds an open region. A base sheet extends beneath the open region to define with the air-filled member a n... | 10/24/1978 |
| 4109333 | Air stabilized water mattress A waterbed mattress, the interior of which is fitted with an air inflatable section in the form of cylindrical cup sections joined to the interior of the top and bottom liners of the mattress. The interior of the cup sections are open to the bottom with t... | 08/29/1978 |