Method of making strings of pocketed springs
AssigneeL&P Property Management Company
InventorsJohn J. Brunnert, John E. Hull, Richard A. Krtek, Darrell A. Richmond
Life of this patent
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Abstract
An apparatus for ventilating a web of material used in the manufacture of pocketed springs may be removably attached to a pocket coiler. The apparatus has an upper movable portion which pivots relative to a stationary portion. The stationary portion may be removably attached to the pocket coiler. Each portion has at least one roller, a web of material passing between the rollers during use. One of the rollers may have protrusions to create openings in the material before the material enters the pocket coiler.
Claims19
A method of making a continuous string of pocketed springs, said method comprising:
- providing a pocket coil machine;
- providing a ventilation apparatus, the ventilation apparatus having a first portion secured to the pocket coil machine and a second portion pivotal relative to the first portion to allow access inside the ventilation apparatus;
- passing a web of material between two rollers, one of the rollers being mounted in the first portion of the ventilation apparatus and the other roller being rotatably mounted in the second portion of the ventilation apparatus, at least one of the rollers having protrusions to create a patterned web, the patterned web having openings extending through the web;
- and
- introducing the patterned web into the pocket coil machine for creating a string of individually pocketed springs.
A method of making a continuous string of pocketed springs, said method comprising:
- providing a pocket coil machine;
- providing a ventilation apparatus having a stationary portion secured to the pocket coil machine and a movable portion movable relative to the stationary
- portion to allow access inside the ventilation apparatus;
- passing a web of material through the ventilation apparatus, the web of material passing between rollers to create a patterned web, at least one of the rollers having pins and at least one of the rollers being a brush roller, the patterned web having openings through the web;
- and
- introducing the patterned web into the pocket coil machine for creating a string of individually pocketed springs.
A method of making a continuous string of pocketed springs, said method comprising:
- providing a pocket coil machine;
- providing a ventilation apparatus comprising a brush roller assembly supporting a brush roller and a pin roller assembly, the brush roller assembly being attached to the pocket coil machine, the pin roller assembly being movable relative to the brush roller assembly, the pin roller assembly comprising at least one pin roller mounted on a pin roller shaft, the pin roller shaft extending between bearing assemblies of the pin roller assembly;
- passing a web of material between the brush roller assembly and the pin roller assembly to create a patterned web having openings extending through the patterned web;
- introducing the patterned web into the pocket coil machine for creating a string of individually pocketed springs.
Dependencies are inferred from the claim text.