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4834779 |
Process for membrane seperation of gas mixtures
A method for the substantial separation of at least one gas component from a gas mixture to generate a residue gas substantially depleted of the gas components to be separated. A semipermeable...
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4631763 |
Retractable bed with a pivoted screw drive
A retractable bed includes a self-standing enclosure frame having tracks with curved segments at opposite ends of the enclosure. A mattress support frame formed of interconnected hinged sections...
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4288131 |
Cabinet-mounted bathroom-scale
A retractable cabinet-mounted bathroom-scale including a cabinet or housing mounted to or recessed into a wall and a conventional spring-type bathroom-scale having its rear end pivotally mounted to...
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