U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Famous Patents

The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 5/685 - Having plural, distinct removable bladders


Subclass of Class 5 - Beds
Definition: Waterbeds or associated devices comprising at least two
No. of patents: 49
Last issue date: 02/13/2007


1    
NumberTitleIssue Date
7174583Adjustable height foundation
A height-adjustable mattress assembly is constructed of a mattress foundation and an optional frame assembly with a plurality of ground support members supporting the mattress foundation. The ground support members can be attached to the frame assembly in at least t...
02/13/2007
7152264Air mattress with pillow top
An air mattress includes a first inflatable compartment having a length and width, when inflated, sufficient to support a human body. The first compartment is composed of at least two layers of vinyl, one layer of vinyl forming the top of the compartment and the sec...
12/26/2006
7086108Sectional 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
7069609Inflatable 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
7017216Bladder 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
7013513Waterbed 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
6952852Mattress structure
A mattress (900) provides a user with three-dimensional firmness zoning, the mattress (900) cooperating with a mattress shell (720). The mattress (900) includes a plurality of longitudinally spaced, transversely extending resilient blocks...
10/11/2005
6857152Water bed structure
A water bed structure includes water containing bodies, a concave bed body, air protection borders and a bed housing, wherein the water containing bodies are installed in accommodating chambers formed by the concave bed body and the air protection borders, and are p...
02/22/2005
6691355Mattress means as synergetically effected by dual-fluid fluidizing units
A mattress device includes a plurality of dual-fluid fluidizing units juxtapositionally secured in a mattress envelope; each dual-fluid fluidizing unit consisting of a lower air cell and an upper gel (or gel-like) cell superimposed and secured on the lowe...
02/17/2004
6481033Multiple module mattress system with depressions accomodating inserts of differing firmness
A mattress system offering combinations of comfort and support comprising at least two modules, positioned side-by-side along their longest dimension to define at least two recumbent user areas the modules comprising depressions accomodating removable ins...
11/19/2002
6343393Waterbed structure
An improved waterbed having a waterbed mattress and a bed protecting cover with airbag protecting sides. The waterbed mattress has a plurality of internal, transverse partitions welded by high-frequency heat sealing, arranged at intervals in single or dou...
02/05/2002
6192538Modular mattress system with a removable liquid filled insert
A mattress system offering combinations of comfort and support comprising at least two modules, positioned side-by-side along their longest dimension to define at least two recumbent user areas, and a comfort cushion receivable atop each of the at least t...
02/27/2001
6065167Fluid-filled flexible-walled chambers having improved resiliency, and methods for controlling their response characteristics
Fluid-filled, flexible-walled chambers in a variety of shapes are embraceably fitted with elastic loops or girths whereby the overall resiliency and cushioning ability of the chambers is improved. The expanded versatility of the resilient chambers makes p...
05/23/2000
5845353Water 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
5839788Article of furniture with an improved inner support system
A plurality of flexible enclosures are disposed within an article of furniture. The enclosures are positioned to receive the weight of a person resting on the furniture. The enclosures contain a liquid such as water therein. A plurality of electric coils ...
11/24/1998
5802739Complex-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
5794287Water 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
5740573Air bed with circumferential belt
An air bed includes first and second air-tight enclosures disposed side by side in a first plane. Each of the first and second air-tight enclosures is independently inflatable and has substantially the same length and width, the first and second air-tight...
04/21/1998
5737788Attaching arrangement in a multi-layered pad
A multi-layered pad primarily intended to prevent and treat decubitus ulcers. The pad includes at least first and second layers with the first layer being a bladder made up of separate, discrete pouches containing a viscous fluid. The second layer underli...
04/14/1998
5727269Water bed with internal air bag(s)
A water bed in accordance with the present invention comprises a water bed base and a plurality of water bed mattresses. The water bed base defines a number of container chambers into which an equivalent number of water bed mattresses are respectively rem...
03/17/1998
5647077Water mattress apparatus and a water bag used for the water mattress apparatus
A cushion unit is provided which is elastically compression-deformable on load. A case is stacked on the upper surface of the cushion unit. The case has an upper surface and lower surface with a receiving section open relative to the upper surface. A wate...
07/15/1997
5617596Tube for a waterbed
A tube for a waterbed includes a generally cylindrical tube body having a top, a bottom, and a pair of side walls extending from the top to the bottom. The tube body defines a longitudinal axis of the tube. First and second tube ends in combination with t...
04/08/1997
5594962Fluid filled medical mattress
The subject matter of the invention is a medical mattress comprising a flexible tubular envelope (1) open at two ends, divided into a central section (3a, 3b) open at both ends and flanked, on either side, by an area forming a border (4a, 4b; 5a, 5b) open...
01/21/1997
5511260Anti-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
5507048Lightweight floatation waterbed
The present invention provides a lightweight waterbed structure composed of a foam base with a raised border around the perimeter containing a plurality of generally flat multiple bladders arranged horizontally in a configuration to cover the foam base an...
04/16/1996
5311623Hydropneumatic mattress
A hydropneumatic mattress with upper water containing tubes and lower air containing tubes is disclosed. The upper and lower tubes are supported by a layer. The tubes are individually removable for replacement. The mattress construction is especially desi...
05/17/1994
5285541Flotation system including improved cushioning and support features
A water mattress configuration is provided which includes a tray having a peripheral flange having a downturned edge. A load placed atop the flange causes side walls of the tray to deflect, providing a cushion effect....
02/15/1994
5259079Double bed arrangement with combination mattress
A double bed arrangement having a combination mattress including a liquid filled side and a non-liquid filled cushion side. A compressible foam tray holds the non-liquid cushion side in a first portion or half of the tray with the liquid-filled cushion be...
11/09/1993
5255404Anti-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...
10/26/1993
5201780Anti-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...
04/13/1993
5182825Waterbed
A waterbed having a plurality of individually water-filled bladders adjacent each other on a transfer board or other flat surface. Each bladder has a flap that attaches to the bottom surface of the adjacent bladder. The transfer board may have handles so ...
02/02/1993
5144707Flotation system including improved locking features
A water mattress configuration including a top cover interconnected with a lower member or members in order to capture on or move liquid-filled bladders therebetween. In one embodiment, such interconnection is made by a sliding connection allowing the top...
09/08/1992
5077848Wave dampened watermattress with tubes and lumbar support
A tube-type watermattress has a plurality of elongated tubes disposed in a head-to-toe direction in the mattress. A wave dampening insert enclosed in each tube has a center portion which is substantially thicker than the rest of the insert to provide addi...
01/07/1992
5005238Water bed mattress
A water bed mattress comprises a rectangular compressible plastic foam sheet containing a plurality of uniformly dispersed cylindrical cutouts across the surface area of the compressible sheet. A separate water cushion is located in each of the cutout are...
04/09/1991
4970743Mattress and foundation system useable with water mattresses
A mattress and foundation bedding system having a knock-down capability for ease of assembly and disassembly, and for shipment and storage. The foundation has a core of honeycomb cells enclosed in an outer box and dressed with ticking material to resemble...
11/20/1990
4932721Water couch
The present device relates to a couch, which is comprised of a flexible material (Poly Vinyl Chloride) completely filled with water. The inside of the couch (all the pillows and cushion) is sectioned off by many walls of partitions, some are situated vert...
06/12/1990
4912789Waterbed mattress
A waterbed mattress is disclosed having a cushioned box shaped frame with a base sheet securely attached to the box shaped frame, the combination forming therein cavity. A plurality of elongated fluid filled containers are disposed within the cavity, and ...
04/03/1990
4858263Cellular waterbed component and bed containing same
A waterbed contains a plurality of pliant plastic cylindrical containers, closed at both ends by end caps, one of which has a re-closable fill opening. In the preferred embodiment, the containers are fabricated by first extruding a polymer mixture into a ...
08/22/1989
4788730Gel-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
4745648Body supporting structure
A hollow flexible body adapted to rest upon a mattress has the general shape of a rectangular parallelepiped which is horizontally elongated and is vertically shallow. The body has a closed bottom and sides with a top having a rectangular opening therein....
05/24/1988
1    
 
Sign InRegister
Username  
Password   
forgot password?