Resources Contact Us Home
Browse by Category: Main > Household
Class Information
Number: 5/233
Name: Beds > Bedsteads > Having bottom > Of fabrics and springs > Marginal spring tension
Description: Devices arranged to exert outward marginal pull upon the fabric and allow sag under weight. Frequently the fabric passes over rollers to attaching springs beneath.

Patents under this class:

Patent Number Title Of Patent Date Issued
4630816 Jogging apparatus Dec. 23, 1986
4452444 Rebound exerciser Jun. 5, 1984
4284271 Hexagonal jogging platform Aug. 18, 1981
4162063 Adjustable springs for trampolines and the like Jul. 24, 1979

  Recently Added Patents
Hand sign
Image processing apparatus, image registering method, program causing computer to execute image registering method, and recording medium in which program is recorded
Quantitative sleep analysis system and method
Apparatus and method for storing event information for an HVAC system
Method for treating wounds for mammals, wound healer compound, and method of manufacturing thereof
Adjustable box extender
Sound producing apparatus for vehicle
  Randomly Featured Patents
Water pump for reciprocating piston internal combustion engine
Guitar head
Automatic actuator to flush toilet
DC-offset correction circuit
Methods and apparatus for providing access to content
Quinoline derivatives and quinazoline derivatives
Impeller of motorboat
Synchronous to non-synchronous data line pair interface apparatus
Method and apparatus for transactional writing of data into a persistent memory
System and method for invoking barring features in a satellite network