Conveyors: power-driven – Conveyor section – Reciprocating conveying surface
Patent
1989-05-08
1990-04-03
Valenza, Joseph E.
Conveyors: power-driven
Conveyor section
Reciprocating conveying surface
267158, 267260, 267265, B65G 2708
Patent
active
049132814
ABSTRACT:
An actuator for a vibratory material feeder comprises a base, a tray support, at least one spring for mechanically coupling the base and tray support, and a spring mount for mounting the spring to an actuator mounting surface on one of the base and tray support. The spring mount comprises first and second bearings each having a spring-abutting surface for supporting the spring therebetween, an arcuate surface and at least one hole therethrough; first and second bearing blocks each having an arcuate surface for mating with the arcuate surface of a corresponding one of the first and second bearings, and at least one hole therethrough. One of the bearing blocks abuts the actuator mounting surface. The spring mount further comprises at least one fastener having a shaft extending through the at least one hole of each of the first and second bearings and bearing blocks and a corresponding at least one hole in the spring. The fastener engages the base or tray support such that the first and second bearings are fixedly secured between the first and second bearing blocks when the fastener is in a tightened condition. Further, the at least one hole of each of the first and second bearings and the spring are larger than the fastener shaft, such that the first and second bearings and spring are together pivotable relative to the first and second bearing blocks when the fastener is in an untightened condition.
REFERENCES:
patent: 1872311 (1932-08-01), Lyman
patent: 1947935 (1934-02-01), Gibson
patent: 2332600 (1943-10-01), Rapp
patent: 2997158 (1961-08-01), Moskowitz et al.
patent: 3845857 (1974-11-01), Doty
patent: 4356911 (1982-11-01), Brown
K-Tron International Inc.
Valenza Joseph E.
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