Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7353554 | Floating water bed The floating water bed includes a specially designed unique sleeping bag and a movable mattress pad. The sleeping bag is both thin and soft and it is placed on top of the movable mattress pad. This movable mattress pad can be lowered or risen from the water. As the ... | 04/08/2008 |
| 7213497 | Inflatable trajectory altering and blast energy absorption system An inflatable trajectory altering and blast energy absorption system has a plenum with walls that are spaced apart from one another when the plenum is inflated. Flexible members, dispersed in the plenum and coupled thereto, are placed in tension when the plenum is i... | 05/08/2007 |
| 7174589 | Inflatable cushion systems and method of manufacture thereof An inflatable device for people to sit, lie or sleep on is provided, which device allows water vapor produced by the person's perspiration or condensation to escape from the vicinity of his/her body, which device can be readily manufactured without undue amounts of ... | 02/13/2007 |
| 6185770 | Air mattress An air mattress includes an upper sheet with a tufted top surface, a lower sheet, and front and rear sheets. The front sheet has upper, lower and lateral edges. The upper edge of the front sheet is sealed to a front edge of the upper sheet, is longer than... | 02/13/2001 |
| 5392478 | Waterbed with supplemental support Waterbed with supplemental support for providing different degrees of localized firmness or support in different areas of a mattress. The bed includes a water-filled mattress having a horizontally extending upper wall and a chamber containing a body of wa... | 02/28/1995 |
| 4935978 | Wedge cut waterbed mattress A waterbed mattress comprises an inflatable container formed of a flexible plastic material with a generally planar top sleeping surface and a generally planar bottom. There are generally vertical side walls and a generally vertical head end wall and a ge... | 06/26/1990 |
| 4860395 | Water-cooled lounging pad A water-cooled lounging pad having circular top and bottom sheets of flexible plastic material to be lain upon by a person obtaining a suntan, a heat seal joining the top and bottom sheets at their peripheries to form a flattened circular waterproof closu... | 08/29/1989 |
| 4858262 | Confined liquid flotation mattress A flotation mattress is provided in which the downwardly directed weight of the user's body on the top wall of the mattress is counter-balanced substantially only by a force directed vertically upward by the buoyancy force of the liquid in the mattress, a... | 08/22/1989 |
| 4793013 | Water mattress bag, and a method for producing the same A water mattress bag (1) of a watertight resilient material with tensile strength is provided with a valve for filling/draining water and is intended for use together with a main mattress member (3) of a resilient, flexible foamed plastic or the like, whi... | 12/27/1988 |
| 4707872 | Resilient supporting device A body supporting device comprising a plurality of liquid-filled compartments, each compartment communicating with at least one further compartment through liquid flow-inhibited flow passages, said compartments being filled with a liquid having a viscosit... | 11/24/1987 |
| 4662010 | Floater waterbed A waterproof vinyl body bag or sleeve open to the air at both ends which is inserted inside a main vinyl waterbed having two apertures, of the same dimensions as the open ends of the body bag, on its top surface. The bag or sleeve is sealed at the edges o... | 05/05/1987 |
| 4619007 | Cellular waterbed component and method of manufacture A method for fabricating fluid containers in general, and more particularly, plastic fluid containers which are suitable for use in water mattresses. The containers are fabricated by first extruding a polymer mixture into a tubular configuration and cutti... | 10/28/1986 |
| 4577357 | Self-sealing waterbed mattress A waterbed mattress comprises an external envelope and is provided with an internal layer of viscous, polymeric sealing material for sealing punctures in the mattress. The polymeric material can be poly(ether)urethane, which is prevented from sticking to ... | 03/25/1986 |
| 4538311 | Self-sealing puncturable article Flexible self-sealing sheeting comprises a flexible, puncturable sheet of cloth or polymeric material, a layer of a self-adhering, water-resistant polyurethane sealing material, and an anti-tack barrier. The sheeting can be used to form a waterbed mattres... | 09/03/1985 |
| 4534078 | Body supporting mattress A mattress employs a first plastic unit which is flat and horizontal and is provided with a peripherally disposed horizontal endless hollow tube which is inflatable. The tube, when inflated, defines a raised peripheral border surrounding and enclosing an ... | 08/13/1985 |
| 4501035 | Self-sealing waterbed mattress A waterbed mattress comprising an external envelope is provided with an internal layer of viscous, polymeric sealing material for sealing punctures in the mattress. The polymeric material can be polybutene filled with a particulate filler. The sealing mat... | 02/26/1985 |
| 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 |
| 4382305 | Self-sealing waterbed mattress A waterbed mattress comprising an external envelope is provided with an internal layer of viscous, polymeric sealing material for sealing punctures in the mattress. The polymeric material can be polybutene filled with a particulate filler. The sealing mat... | 05/10/1983 |
| 4365370 | Water bed mattress A vacuum formed water bed mattress providing a pair of large flat opposite parallel sides and four narrower sides joined to form a substantially right regular parallelopiped is disclosed. One of the large flat sides is made of a heat resistant material. T... | 12/28/1982 |
| 4354289 | Waterbed A waterbed which is preferably substantially rectangular and has a substantially rigid base structure supporting a substantially rigid, but somewhat flexible, wall structure in which bladder means full of water is located so that the upper surface of the ... | 10/19/1982 |
| 4330893 | Water bed A water bed employing a mattress in the form of a water-tight bag of flexible sheet material and having means for restricting swelling deformations in the peripheral portion of the top sheet of the bag.... | 05/25/1982 |
| 4115886 | Fluid mattress with squared gusset panel construction A fluid mattress is formed by a top sheet, a bottom sheet, and a gusset panel extending between the peripheral edges of the sheets. The mattress has square corners resulting from a preferred method of construction wherein a die is provided with a curved s... | 09/26/1978 |
| 4100634 | Water mattress construction A water mattress construction is disclosed. The construction involves a folded one piece vinyl sheet wherein the various panels are joined at the vertical corners, along the lengthwise lower edges and side to side across the middle of the bottom. By so lo... | 07/18/1978 |
| 4073019 | Lightweight waterbed assembly A lightweight comfortable waterbed assembly comprising a mattress, made of a pair of water impermeable sheets, sealed at their peripheries. An easily assembled supporting substructure of simple geometrically shaped and interlocked components, support the ... | 02/14/1978 |
| 4067077 | Circular waterbed A self supporting circular waterbed comprising a circular inflatable bag installed within a soft endless flexible band. Pressure from within the inflated bag against the soft flexible band, stiffens and rigidifies the band which then functions as a conven... | 01/10/1978 |
| 4025975 | Water bed mattress A water bed mattress comprised of upper and lower flexible foldable sheets which are essentially rectangular in shape. The upper sheet is essentially formed by folding up portions of the lower sheet upwardly and inwardly and transversely sealing end margi... | 05/31/1977 |
| 3958286 | Fire extinguishing mattress cover A liquid filled cover for a mattress having horizontally disposed upper and lower sheets of a material having a low resistance to penetration by fire and hot objects capable of initiating fire joined at their outermost edges to form a leakproof enclosure.... | 05/25/1976 |
| 3952348 | Water mattress construction A water mattress construction is disclosed. The construction involves a folded one-piece vinyl sheet wherein the only longitudinal seam is located on the bottom, thereby avoiding side seams on the mattress and wherein the end seams are located below the u... | 04/27/1976 |
