公开(公告)号：US07931269B2

公开(公告)日：2011-04-26

申请号：US11771344

申请日：2007-06-29

申请人： David G Duff ,  David K Biegelsen ,  Lars-Erik Swartz

发明人： David G Duff ,  David K Biegelsen ,  Lars-Erik Swartz

IPC分类号： B65H29/00

CPC分类号： B65H29/58 ,  B65H29/008 ,  B65H2220/09 ,  B65H2301/3125 ,  B65H2301/4482 ,  B65H2402/10 ,  B65H2402/32 ,  B65H2404/632 ,  B65H2404/65 ,  B65H2601/11 ,  B65H2601/324 ,  B65H2801/06 ,  Y10S271/902

摘要： A media path jam clearance apparatus installable in a supporting structure includes media drive mechanisms for moving flexible media through media paths and a rotatable, removable jam clearance element. Within the jam clearance element facing surfaces of guide elements define guide surfaces for media paths, with the guide elements having external surfaces capable of supporting the flexible media as it is wrapped around the external surfaces. A pivotal support element supports and enables rotational movement of the jam clearance element within the supporting structure. The jam clearance element may be partially or entirely extracted from the supporting structure.

公开(公告)号：US09927162B2

公开(公告)日：2018-03-27

申请号：US14259114

申请日：2014-04-22

申请人： Leslie A Field ,  Susan J Strehlow ,  David G Duff ,  Kimberly M Wiefling

发明人： Leslie A Field ,  Susan J Strehlow ,  David G Duff ,  Kimberly M Wiefling

IPC分类号： F25C1/18 ,  F25C1/00

CPC分类号： F25C1/00

摘要： Embodiments generally relate to methods and apparatuses for generating ice. In one embodiment, a material is introduced to water, and the temperature of the combination of the water and the material is lowered until ice forms, the formed ice having a higher albedo than it would have had if the step of lowering the temperature had been carried out on the water without first carrying out the step of introducing the material. In one embodiment, the material is selected such that an aqueous solution of the material is alkaline. In another embodiment, a material is introduced to water, and the temperature of the combination of the water and the material is lowered until ice forms, the ice forming at a faster rate than the rate at which it would have formed if the material had not been introduced to the water.

公开(公告)号：US08023866B2

公开(公告)日：2011-09-20

申请号：US12184116

申请日：2008-07-31

申请人： Meng H Lean ,  Shu Chang ,  Baomin Xu ,  Karl A Littau ,  David G Duff

发明人： Meng H Lean ,  Shu Chang ,  Baomin Xu ,  Karl A Littau ,  David G Duff

IPC分类号： G03G15/08

CPC分类号： G03G15/344

摘要： A marking apparatus including a traveling wave grid toner transport circuit structure for transporting powdered toner along a transport surface, and electromechanical elements for selectively enabling toner patches to be projected to an output medium by a projecting electric field.

摘要翻译： 一种标记装置，包括用于沿着传送表面输送粉状调色剂的行波网格调色剂传送电路结构和用于选择性地使调色剂片通过投射电场投射到输出介质的机电元件。