A spacer for a sealed unit is formed of a stretched elongate strip of material, such as metal. The elongate strip is longitudinally stretched, causing a reduction in the thickness of the material. Stretching is performed by applying a tension across a segment of an elongate strip. The tension can be applied to the elongate strip by passing the elongate strip through at least two spaced sets of rollers. A first set of rollers operating at a first speed engages with the elongate strip and a second set of rollers operating at a second speed applies a tension to the elongate strip to cause stretching of the material. Corrugated rollers can also be used to form the material into an undulating shape.
申请公布号
WO2011008860(A1)
申请公布日期
2011.01.20
申请号
WO2010US41978
申请日期
2010.07.14
申请人
INFINITE EDGE TECHNOLOGIES, LLC;RAPP, ERIC, B.;TRPKOVSKI, PAUL;MATTHEWS, GARY, R.