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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 |
| 4252461 | Maneuverable dam A dam for a waterway comprises a plurality of panels of flexible and inextensible sheet material such as rubberized fabric extending vertically from the bottom to adjacent the surface of a waterway. The edges of the panels overlap and are removably fasten... | 02/24/1981 |
| 4239416 | Lined cavity in the earth A cavity in the earth such as a reservoir, tunnel or the like is lined with a flexible, fluid impervious sheet such as a rubberized fabric supported by a grid-like skeleton structure having distorted elongated resilient structural members which are under ... | 12/16/1980 |
