Free standing shelves

Details Free standing shelves Free standing shelves

1977-09-12

1978-12-05

Mitchell, James C.

Horizontally supported planar surfaces

Folding

With vertical adjustability

108144, 248188, A47B 300

Patent

active

041280644

ABSTRACT:
A shelf structure comprises a plurality of interconnected posts and shelves. Spaced apart annular recesses or ribs are provided on the posts for positive engagement with corresponding ribs or recesses respectively formed on the insides of multi-piece collars which are placed in position about the posts. A fastening ring either slips over the collar or is screwed upwardly onto the collar to lock it into position and to provide an upwardly facing shelf-supporting surface. Shelf-clamping rings are then screwed downwardly on the collars to abut the top surfaces of the shelves.

REFERENCES:
patent: 1265373 (1918-05-01), Philip
patent: 2222160 (1940-11-01), Walsh
patent: 3424111 (1969-01-01), Maslow
patent: 3675598 (1972-07-01), Kesilman et al.
patent: 3757705 (1973-09-01), Maslow
patent: 3853074 (1974-12-01), Madey

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