Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Household
Class Information
Number: 5/268
Name: Beds > Bedsteads > Having bottom > Of springs > Elements > Top connections > Twin and continuous springs
Description: Devices in which twin springs are vertical coil springs made in pairs, of one continuous wire, the wire usually passing from the top of one spring to the top of the other. Continuous springs are similar, but the method is extended to larger groups or to the whole number of springs comprising the bottom. All bed springs of these types are included in this subclass with their connection, etc.










Patents under this class:

Patent Number Title Of Patent Date Issued
6260223 Pocketed coil spring units Jul. 17, 2001
5964453 Wire grid and wire spring module for use with a furniture spring assembly Oct. 12, 1999
5649332 Posturized continuous mattress spring core Jul. 22, 1997
5418989 Mattress innerspring using formed wire elements May. 30, 1995
4995125 Bedding box spring having snap-fit modular elements Feb. 26, 1991
4972536 Longitudinally laced posturized and/or contoured spring bedding product Nov. 27, 1990
4921228 Box spring unit with interlocking spring and grid assembly May. 1, 1990
4918773 Posturized spring bedding product Apr. 24, 1990
4853991 Bedding foundation having multiple-span sinuous wire springs Aug. 8, 1989
4790038 Bedding spring assembly Dec. 13, 1988
4779293 Formed wire box spring with spring wire deck Oct. 25, 1988
4766625 Box spring having rows of coil springs formed from a single length of wire Aug. 30, 1988
4766624 Mattress assembly having rows of coil springs formed from a single continuous length of wire Aug. 30, 1988
4730357 Bedding box spring Mar. 15, 1988
4704752 Box spring assembly with modular twin continuous spring elements Nov. 10, 1987
4675927 Bedding units and springs therefor Jun. 30, 1987
4625349 Bedding coil spring unit and assembly method Dec. 2, 1986
3995336 Spring mats Dec. 7, 1976











 
 
  Recently Added Patents
Reading apparatus and reading method
Processing biomass
Method and system for utilizing native ethernet as a virtual memory interconnect
Particulate filter with hydrogen sulphide block function
Optical cable plug-in detection
Compounds, compositions and use
Resuming piecewise calibration of a real-time-clock unit after a measured offset that begins at the next calibration period
  Randomly Featured Patents
Payload mapping in synchronous networks
Spring brake cylinder
Finely divided, irradiated tetrafluorethylene polymers
Dispensing unit for liquid and method of dispensing
Apparatus and method for plasma processing
Exhausting device for anatomic operation
SRAM active write assist method for improved operational margins
Imidazole derivatives as anti-HIV agents
Multi-cylinder internal combustion engine equipped with an accumulation chamber
Joint replacement method and apparatus