Eccentric-weight subassembly, and in combination with an earth c

Details Eccentric-weight subassembly, and in combination with an earth c Eccentric-weight subassembly, and in combination with an earth c

1987-08-31

1988-06-07

Novosad, Stephen J.

Road structure, process, or apparatus

Apparatus

Means to agitate material

404130, 74 61, 74 87, 366116, 366128, E01C 1938

Patent

active

047493054

ABSTRACT:
The subassembly comprises a shaft having an eccentrically-weighted portion journalled in a tube which also has an eccentrically-weighted portion. The tube has an abutment therein which prevents full rotation of the tube relative to the shaft. With rotation of the tube in one direction, its abutment, at one side, comes into engagement with the eccentrically-weighted portion of the shaft and, consequently, both portions are in proximity and radially aligned to produce a maximum, oscillatory vibration. Tube rotation in the opposite direction causes the shaft portion to engage the other side of the abutment and, consequently, the portions are in opposite, radial dispositions, and produce a minimum, oscillatory vibration.

REFERENCES:
patent: 3026781 (1962-03-01), Schafer
patent: 3670631 (1972-06-01), Gaylord
patent: 3892496 (1975-07-01), Martinez
patent: 4176983 (1979-12-01), Gardner
patent: 4195947 (1980-04-01), Lambertz
patent: 4262549 (1981-04-01), Schwellenbach
patent: 4353261 (1982-10-01), Salani
patent: 4412757 (1983-11-01), Kummel et al.
patent: 4454780 (1984-06-01), Goehler et al.
patent: 4561319 (1985-12-01), Lilja
patent: 4568218 (1986-02-01), Orzal

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