Tuned vibratory feeders

Details Tuned vibratory feeders Tuned vibratory feeders

1976-05-28

1977-04-12

Jenkins, Robert W.

74 61, F16H 3300, B65G 2718, B01F 1100

Patent

active

040170608

ABSTRACT:
A vibratory feeder, conveyor, separator, screen, or other vibratory equipment used in materials handling and related fields of the tuned two mass type in which one mass is an imbalance generator of the type using eccentric weights on a rotating shaft uses helical coil springs for coupling the imbalance generator to the trough or the like without clamping of the ends of the springs or constraining them to remain parallel to each other. Decoupling of the lateral oscillatory forces from the trough is achieved by using at least two pairs of collinear springs, one of each pair on each side of a wall member secured to the trough, and each held in compression between the wall member and a pair of vibrator plates held in fixed spaced apart relationship on each side of the wall member. The imbalance generator is secured to one of the vibrator plates so as to be well outside the spring system thus giving a low natural lateral frequency to the two mass system.

REFERENCES:
patent: 2258059 (1941-10-01), Kessler
patent: 2512120 (1950-06-01), Strain
patent: 3004389 (1961-10-01), Muller
patent: 3342075 (1967-09-01), Lowe
patent: 3407670 (1968-10-01), Venanzetti
patent: 3498384, Ogura
patent: 3583246 (1971-06-01), Stahle
patent: 3920222 (1975-11-01), Brander

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