U.S. patents available from 1976 to present.
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Patent No. 6049912

Mountable Printable Placard With Headband

A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.

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Class 5/936 - WITH ADJUSTABLE FIRMNESS COMPRISING SPRINGS


Subclass of Class 5 - Beds
Definition: A collection of documents comprising spring devices that
No. of patents: 7
Last issue date: 05/06/1997


NumberTitleIssue Date
5625914Automatic mattress surface contour and support changing apparatus with wave sensors
An automatic mattress surface contour and support changing apparatus includes a wave-emitter assembly which emits waves and is worn by a person lying in bed. A wave-responsive mattress/control assembly responds to the waves of the wave-emitter assembly fo...
05/06/1997
5063625Adjustable tensioning of a mattress
A mattress construction includes upper and lower structures defining generally parallel planes, and coil springs operatively connected to such structures and located between those lanes, and with at least one of the upper and lower structures including a ...
11/12/1991
4677701Firmness control device
A device for varying the firmness of a body supporting foundation, such as a box spring of a bed assembly or the like, including a vertically movable platform provided with a plurality of spaced resilient cushion members that may be selectively positioned...
07/07/1987
4667357Sleep unit having adjustable firmness
A sleep unit having inner coil springs is adjustable for firmness by movement of an inner plate or frame having portions which extend between selected turns of the springs....
05/26/1987
4547918Body supporting network
The present invention relates to a body supporting network suitable for use with a load supporting system. The network includes at least first and second pluralities of elongate support members securable with the system for supporting a load. The first an...
10/22/1985
4222137Internal pressure adjustable bed
A bed adjustable in hardness distribution of its surface. An elastic member is interposed between a surface side member and a bottom plate of the bed, and the bottom plate is divided in the direction of its plane and each of the bottom plates thus divided...
09/16/1980
3995337Mattress construction
An innerspring mattress wherein the middle portion of the mattress has two superposedly arranged sets of springs having different degrees of firmness, a rigid member, such as a plate, being insertable therebetween to provide two additional degrees of yiel...
12/07/1976
 
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