Horizontally supported planar surfaces – Plural related horizontal surfaces – Terraced
Patent
1994-12-07
1996-03-19
Chen, Jose V.
Horizontally supported planar surfaces
Plural related horizontal surfaces
Terraced
108 97, 108 39, 312266, A47B 5700
Patent
active
054995841
ABSTRACT:
A retractable adjustable shelf apparatus for holding items thereupon comprising a hollow first shelf formed of a top and a bottom wall and a periphery interconnecting the walls; a pair of brace mechanisms with each brace mechanism including a strut having a first end and a second end with the first end pivotally couplable to a separate external second shelf; and a pair of level adjustment mechanisms disposed within the first shelf, each level adjustment mechanism further comprising an elongated longitudinally slidable geared upper track slidably coupled to the top wall, an elongated geared lower track coupled to the bottom wall, a gear disposed between and in mesh with the tracks and with the gear coupled to the second end of the strut, and a spring-loaded bolt extended from one end of the upper track and through the front wall to terminate at a turnable knob for allowing the first track to be slid to a desired position for permitting the levelness of the first shelf to be adjusted when pivoted with respect to the external second shelf.
REFERENCES:
patent: 544821 (1895-08-01), Morrison
patent: 1529032 (1925-03-01), Meisner et al.
patent: 1824822 (1931-09-01), Kradolfer
patent: 2641072 (1953-06-01), Maher
patent: 2692173 (1954-10-01), Lowitzsch
patent: 2938631 (1960-05-01), Brey
patent: 3857623 (1974-12-01), Schneller
patent: 4258965 (1981-03-01), Stoner
patent: 4375907 (1983-03-01), Vanderkooi et al.
Chen José V.
Wilkens Janet M.
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