Ball transfer unit

Details Ball transfer unit Ball transfer unit

1994-03-03

1995-11-07

Valenza, Joseph E.

Conveyors, chutes, skids, guides, and ways

Rollerways

Submerging and rising

193 35MD, 193 35B, B65G 1300

Patent

active

054640865

ABSTRACT:
A ball deck is disclosed capable of conveying a container having an uneven bottom surface. The ball deck, having an upper surface, houses a plurality of ball transfer units. Each ball transfer unit has a first housing having an upper end terminating adjacent the upper surface of the ball deck. A first load supporting ball, which is preferably hollow, is disposed in an upper section of the housing and has a portion extending above the upper surface of the ball deck. A second load supporting ball, having a lesser diameter than the first ball, supports the first ball. A spring biases the balls axially upward by allowing the first ball to move between an upward position and a downward position when supporting an irregular load surface.

REFERENCES:
patent: 903850 (1908-11-01), Fenney
patent: 1033264 (1912-07-01), Oppy
patent: 1432760 (1922-10-01), Kirschke
patent: 3132904 (1964-05-01), Wakamatsu
patent: 3920290 (1975-11-01), Evarts
patent: 4871052 (1989-10-01), Huber
patent: 5147032 (1992-09-01), Rombouts
patent: 5160017 (1992-11-01), Goodman et al.

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