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An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
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| Number | Title | Issue Date |
| 6111908 | High temperature vacuum heater supporting mechanism with cup shaped shield An electrical insulating and heating element support mechanism for a high temperature vacuum furnace having a support rod with an electrical insulating and support mechanism for connecting a heating element to the rod in an electrically non-connected posi... | 08/29/2000 |
| 5271032 | Lid heater for glass melter A glass melter having a lid electrode for heating the glass melt radiantly. The electrode comprises a series of INCONEL 690 tubes running above the melt across the melter interior and through the melter walls and having nickel cores inside the tubes begin... | 12/14/1993 |
| 4272639 | Helically wound heater A high temperature electrical resistance heater for use within a high temperature furnace. The heater comprises an elongated tubular element which includes a first axially extending helical section of high resistance and a second axially extending tubular... | 06/09/1981 |
