U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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Patent No. 5926874

Automatic Bed Maker

An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.

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Class 152/19 - Convertible to rigid wheel


Subclass of Class 152 - Resilient tires and wheels
Definition: The spring wheel with spring encircling rigid annulus is
No. of patents: 1
Last issue date: 05/31/1977


NumberTitleIssue Date
4026342Spring wheel having an overload stop
A wheel comprising a hub element, a rim element, a plurality of substantially circular bands of flexible material spaced about the hub element interposed between and bearing against both of the elements, the axes of the bands being parallel to the axes of... 		05/31/1977
 
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