In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7260857 | Conformable blanket The present invention is directed to a blanket having at least one snap stick inserted into or onto the blanket to maximize the surface area of the blanket that contacts the user. ... | 08/28/2007 |
| 7146664 | Pneumatic surgical prone head support and system A pneumatic surgical prone head support (100) (100′) (100″) is provided that includes a support body (110) within which is disposed a pneumatic pressure distribution network (130) that is fluidly coupled to a plurality of infla... | 12/12/2006 |
| 7086108 | Sectional non-slip mattress and support frame therefor The sectional non-slip mattress includes a support frame defining a plurality of compartments and at least one cushion having a plurality of ball bearings received within a cushion housing. Each compartment receives a corresponding ball bearing, thus preventing hori... | 08/08/2006 |
| 7076822 | Stacked cushions Stacked cushions, cushioning elements thereof, materials and processes for making the same are disclosed. ... | 07/18/2006 |
| 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 |
| 7059000 | Portable infant cushion A portable infant cushion (10) includes a base (12) having a top surface (14) for engaging the body of an infant placed onto the top surface and for transferring the weight of the infant. The top surface (14) includes a head support porti... | 06/13/2006 |
| 7036162 | Cooling mattress for sunbathing A cooling mattress for supporting and cooling a sunbather while sunbathing includes a number of pads joined by a number of fasteners. Each pad includes a liner defining a cavity and a cooling medium deposited within the cavity. The fasteners interconnect the pads to... | 05/02/2006 |
| 6934990 | Non-liquid buoyant bedding A bed includes a frame supporting a non-liquid material having a density of about 0.15 of to 1 times the density of water. The material can be formed from pellets. The bed can also include a stretchable sheet disposed over the material. ... | 08/30/2005 |
| 6925963 | Pet blanket A pet blanket providing anti-flea properties is disclosed. The blanket is formed of an upper, permeable layer and a lower, impermeable layer, which together form a closeable pocket for receiving an insert that is impregnated with one or more anti-flea agents. As a p... | 08/09/2005 |
| 6901617 | Multi-layer cushion and cover A multi-layer cushion having a shaped base on which is positioned a resilient, cushioning layer. The shaped base is constructed from a supportive foam and has front and lateral bolsters. The cushioning layer is an inflatable air cell cushion having a flexible base a... | 06/07/2005 |
| 6478685 | Amusement system An amusement system is provided which gives children an opportunity to acquire a formative artistic sense in a simple and clean manner without soiling their bodies and clothes. The amusement system includes: a playing space (A) defined by a floor (10) and... | 11/12/2002 |
| 5680662 | Cushioning mattress for reducing shear and friction A cushioning mattress is provided to normalize and distribute the weight of a patient's body to reduce the tangential forces bearing on the skin of the patient. The cushioning mattress comprises a top surface, a bottom surface and a series of alternating ... | 10/28/1997 |
| 5659908 | Air mat and method for manufacturing the mat An air mat comprising an air mat body constructed by two sheets of outside and rearside respectively made of soft non-ventilation synthetic resin sheets and a plurality of forming partition sheets, and various parts welded to the air mat, such as air supp... | 08/26/1997 |
| 5636395 | Mattress pad with gel filled chambers coupled to a foam cushion A pad for individually supporting portions of a human body relative to a mattress. The inventive device includes a flexible pad positionable atop a mattress of a bed. An individual support assembly is coupled to an upper surface of the flexible pad and in... | 06/10/1997 |
| 5590430 | Gel filled deformable cushion and composition contained therein This invention provides for an ultra low density gel filled deformable cushion (10) which includes a fluid impervious flexible enclosure (12) forming an internal chamber (14). Contained within the internal chamber (14) is a padding fluid composition (16) ... | 01/07/1997 |
| 5511260 | Anti-decubitus mattress pad A mattress pad primarily intended for use with a standard hospital bed frame to reduce the development of decubitus ulcers or bed sores in patients using the pad. The pad is multi-layered and includes a cover or casing containing interior strata of a plas... | 04/30/1996 |
| 5079786 | Cushion with magnetic spheres in a viscous fluid A cushion apparatus includes an enclosed cushion member defining an interior cavity defined by a top wall spaced from and parallel a bottom wall, with a surrounding side wall coextensive therebetween. A portal opening is directed through the side wall, wi... | 01/14/1992 |
| 4982465 | Level-variable supporting apparatus A level-variable supporting apparatus is provided, which is so constituted that: a reversible swelling and contractive substance, which, with a prescribed temperature defined as the boundary, absorbs a swelling solution and then swells at a range of tempe... | 01/08/1991 |
| 4788730 | Gel-filled, variably-adjustable cushioning system for supporting a person A cushioning device, which can be a mattress, mattress pad or seat for supporting a person by distributing force over a support area of the person's body, comprises a gel-filled flexible enclosure with variably-adjustable supportive force distribution to ... | 12/06/1988 |
| 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 |
| 4338692 | Body-support floatation system A body-support floatation system comprising a reversible gelatinizing agent added to water within a flexible bladder. Further, a fungicide is added to the gel to inhibit bacterial growth which otherwise would cause deterioration of the gel. As the gelatin... | 07/13/1982 |
| 4281425 | Neonatal flotation pad A flotation mattress pad for an incubator or open warmer has a plurality of separate transverse sections filled with a heat-retentive, viscous fluid. The center sections of the pad have a slightly greater thickness than the end sections. Each section over... | 08/04/1981 |
| 3968530 | Body support means Pads and mattresses having novel aggregate fillers are described. Aggregates containing a highly viscous gel-like fluid and a mixture of re-expanded polystyrene beads and silica beads are utilized to produce lightweight pads and mattresses which provide s... | 07/13/1976 |