Convertible sofa bed
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 20, 2008
Grant Date -
May 11, 2006
app pub date -
Nov 5, 2004
filing date -
Nov 5, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Disclosed is a convertible sofa bed including a seat frame, a back frame, a support structure, a first and second linkage assembly pivotally coupling the seat frame to the back frame pivotally coupling the seat frame to the support structure and pivotally coupling the back frame to the support structure, and an electrical drive assembly coupled to the first and second linkage assemblies. The electrical drive assembly includes a motor mounted to the support structure, a first and second cable drive rotatably coupled to and extending from the motor, first and second threaded drive screws having an external thread, and first and second right angle gear boxes mounted to first and second aft portions of the support structure. The electrical drive assembly also includes first and second drive nut assemblies mounted to respective first and second linkage assemblies and respective threaded drive screws.
First Claim
Family
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Cited Art Landscape
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