US PATENT SUBCLASS 5 / 165
.~.~.~ Tension bottom

Current as of: June, 1999
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5 /   HD   BEDS

131  DF  BEDSTEADS {6}
133  DF  .~ Upending {18}
164.1  DF  .~.~ Counterbalance spring {1}
165.~.~.~ Tension bottom

DEFINITION

Classification: 5/165

(under subclass 164.1) Devices comprising spring fabric bottoms so connected that opening the bed increases the tension on the bottom cushioning the fall, and, conversely, assisting in closing the bed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

169, for structures in which the suspended bottom is usually placed under tension toward the end of the opening movement.