Resources Contact Us Home
Browse by Category: Main > Household
Class Information
Number: 5/257
Name: Beds > Bedsteads > Having bottom > Of springs > Elements > Top-coil unions
Description: Devices, for means of connecting the end of the top coil of a spiral spring to the adjacent part of a lower turn of the same spring to form a closed top loop.

Patents under this class:

Patent Number Title Of Patent Date Issued
6578213 Stackable bedding foundation Jun. 17, 2003
5575460 Spring core for a mattress Nov. 19, 1996
4817924 Spring core for a mattress Apr. 4, 1989
4619445 Spring unit Oct. 28, 1986
4236262 Support grid and spring unit for a box spring foundation unit Dec. 2, 1980
4069525 Firm foundation unit for mattresses Jan. 24, 1978
4068330 Woven spring unit Jan. 17, 1978
4057860 Box spring assembly Nov. 15, 1977
4012801 Box spring assembly Mar. 22, 1977

  Recently Added Patents
Data storage apparatus, memory control apparatus and method for controlling flash memories
Sub-LUN input/output profiling for SSD devices
Subpixel-based image down-sampling
Motor drive component verification system and method
Redistribution layer (RDL) with variable offset bumps
Integrated bug tracking and testing
Blend polymer gas separation membrane
  Randomly Featured Patents
Method of exchanging the displacement element of a refrigerator and refrigerator for implementing the method
Insoluble anode for electrolyses in aqueous solutions
Method of making a tubular coupler for concrete reinforcing bars
Cab receptacle with indicator light
Automatic tablet packing machine
Polyol, polyurethane resin and utilization thereof
Tire rotation detection system and method
Fiche pocket
Particle feed arrangement for applying solid particles to the image carrier of a non-impact printer
Write control driver circuit