Optical table having debris retention structures

Details Optical table having debris retention structures Optical table having debris retention structures

1993-04-29

1995-04-04

Crowder, Clifford D.

Horizontally supported planar surfaces

With diverse support for articles

428116, A47B 4104, B32B 312

Patent

active

054027349

ABSTRACT:
A honeycomb tabletop, including a honeycomb core positioned between a top and bottom structural layer, wherein a number of cups are positioned between the bottom layer and the top layer, and at least some of the number of cups are sized and shaped to cooperate with the lower face of the top layer to form a cavity surrounding at least two of the plurality of holes in the top layer so that contaminants will be unable to pass through the surrounded holes into the honeycomb core. Preferably, these cups form a sealing engagement with the lower face of the top layer to facilitate rapid and thorough cleaning of contaminants from the cups.

REFERENCES:
patent: 3104194 (1963-09-01), Zahorski
patent: 4241892 (1980-12-01), Morris
patent: 4370372 (1983-01-01), Higgins et al.
patent: 4621006 (1986-11-01), Terry et al.
patent: 4645171 (1987-02-01), Heide
patent: 4853065 (1989-08-01), Terry et al.
patent: 5021282 (1991-06-01), Terry et al.
patent: 5061541 (1991-10-01), Gertel

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