Retractable barrier assembly for conveyor

Conveyors: power-driven – Conveyor arrangement for selecting among plural sources or... – By loading or unloading section at selected one of a...

Reexamination Certificate

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C198S369300, C198S451000, C198S457010, C198S459600

Reexamination Certificate

active

07946412

ABSTRACT:
A conveyor for moving objects along a path is comprised of a plurality of spaced-apart rollers that define the path of the conveyor. The upper edges of the rollers are aligned to define the surface of the path. Two spaced-apart side rails having inward-facing surfaces define two side boundaries of the path. A barrier assembly is disposed within a gap in one of the side rails for facilitating loading and unloading of objects onto the conveyor from one side of the conveyor. The barrier assembly is comprised of a mounting plate mounted to the conveyor and a barrier pivotally mounted to the mounting plate. The barrier has a wall section generally aligned with the inward-facing surface on one of the side rails. The barrier is movable between a first position wherein the wall section is elevated relative to the upper edges of the roller and a second position wherein the wall section is disposed below the upper edge of the rollers.

REFERENCES:
patent: 3235101 (1966-02-01), Milhaupt
patent: 3792757 (1974-02-01), Musser
patent: 3978970 (1976-09-01), Reimers
patent: 4041646 (1977-08-01), Mittag
patent: 4082174 (1978-04-01), Stobb
patent: 5244100 (1993-09-01), Regier et al.
patent: 5513936 (1996-05-01), Dean
patent: 5709050 (1998-01-01), Benko
patent: 6138812 (2000-10-01), Kimener
patent: 6212826 (2001-04-01), Kimener
patent: 6357985 (2002-03-01), Anzani et al.
patent: 6837296 (2005-01-01), Kimener
Gilmore-Kramer Co., “Model 190-ABEZ Live Roller Conveyor,” Product literature, Aug. 20, 2005, entire document.

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