Centering mechanism for movable member within a variable-width p

Details Centering mechanism for movable member within a variable-width p Centering mechanism for movable member within a variable-width p

1977-03-21

1978-10-31

Valenza, Joseph E.

Conveyors: power-driven

With means to facilitate working, treating, or inspecting...

214310, 187 95, 308 4R, 250328, B23Q 700

Patent

active

041229363

ABSTRACT:
A mechanism for centering a movable member within an elongated passageway of variable width, such as for use in an article transport system of a benchtop scintillation detector or other laboratory sample processor. The centering is performed by a plurality of outwardly bowed guide elements attached to the movable member, arranged around the periphery of the movable member, and oriented generally along the axis of travel of the movable member. In the particular embodiment herein, the guide elements are maintained in bowed position by one or more biasing means housed within the movable member. The bowing of the guide elements urges the movable member toward the center of the passageway at all times, regardless of the transverse dimension of the passageway, and regardless of the presence of gaps in the passageway.

REFERENCES:
patent: 1911997 (1933-05-01), Gillespie
patent: 3598996 (1971-08-01), Haebler et al.
patent: 3692109 (1972-09-01), Grayson
patent: 3890505 (1975-06-01), Olson
patent: 4035642 (1977-07-01), Johnson et al.

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