Horizontally supported planar surfaces – Plural related horizontal surfaces
Patent
1997-03-28
1998-07-07
Chen, Jose V.
Horizontally supported planar surfaces
Plural related horizontal surfaces
108115, 108 94, A47B 5700
Patent
active
057752338
ABSTRACT:
A stand or platform is integrated directly within the profile of a collapsed tripod riser for easy transport of the device. The tripod riser uses a single center post configuration, with a first support leg rigidly attached thereto and second and third support legs rotatable around the center post support. A unique center post locking system allows multiple-height single-plane nesting of the legs. In addition, the integrated stand is retained within the same plane of the nested support legs and within a cavity created by the interior profile cavity created by the support legs during a collapsed and transport position.
REFERENCES:
patent: Re30020 (1979-06-01), Spencer et al.
patent: 1576716 (1926-03-01), Casgrain
patent: 4763582 (1988-08-01), Rigsby
patent: 5205223 (1993-04-01), Ball et al.
patent: 5463945 (1995-11-01), Kendall
patent: 5473996 (1995-12-01), Kendall
patent: 5520122 (1996-05-01), Fischer
Chen José V.
Lacasse Randy W.
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