Torsional sonic oscillator employing universal joints and tandem

Details Torsional sonic oscillator employing universal joints and tandem Torsional sonic oscillator employing universal joints and tandem

1976-07-30

1978-06-27

Wyche, Benjamin W.

Machine element or mechanism

Mechanical movements

Rotary to or from reciprocating or oscillating

F16H 3300

Patent

active

040967620

ABSTRACT:
Paired unbalanced weight oscillator rotors are mounted in a drill stem or the like arranged in tandem and in symmetrical relationship, equally and oppositely off-centered from the longitudinal axis of the stem. The upper element is connected to a rotary drive shaft by means of a universal joint, the rotors being connected to each other by a similar such universal joint. In this manner, the rotors are synchronously driven to provide torsional vibration of the drill stem in which they are mounted without the need for gears and without the size limitations imposed on the oscillator rotors as in prior art systems where such units are arranged side by side.

REFERENCES:
patent: 379030 (1888-03-01), Robes
patent: 1672885 (1928-06-01), Goldschmidt
patent: 3209525 (1965-10-01), Karlsson
patent: 3908398 (1975-09-01), Braunberger
patent: 3940946 (1976-03-01), Andersen

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