Patent US3633688A successfully refreshed from Google Patents.
US3633688A
Expired / Lapsed
US
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Torsional rectifier drilling device
Assignee: Individual
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Filing: 1970-02-13
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Granted: 1972-01-11
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Expires: 1990-02-13
Abstract
Abstract The sonic energy output of a sonic generator is coupled to a torsional resonant circuit. The output of the torsional resonant circuit is in turn coupled through an acoustic rectifier device to a drive member such as a cutting tool. The rectifier provides unidirectional high level pulses of resonant sonic energy to a cutting tool causing such cutting tool to be rotationally driven in a pulsating manner.
Inventors
- 👤 Albert G Bodine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:36
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
101 words
In a torsional sonic drill member and the like the combination of: a torsionally elastic member periodic torsional force means directly coupled to said member for torsionally oscillating said member about its longitudinal axis at a torsional resonant frequency of the member, means for driving said torsional force means, a cutting tool, and torsional rectifier means coupled to said elastic member and located between said elastic member and said cutting tool for transmitting a unidirectional portion of the oscillator cycle of said member to said cutting tool, whereby said cutting tool is caused to be unidirectionally driven in a pulsating manner.
Claim 2
Dependent Claim
101 words
In a torsional sonic drill member and the like the combination of: a torsionally elastic member periodic torsional force means directly coupled to said member for torsionally oscillating said member about its longitudinal axis at a torsional resonant frequency of the member, means for driving said torsional force means, a cutting tool, and torsional rectifier means coupled to said elastic member and located between said elastic member and said cutting tool for transmitting a unidirectional portion of the oscillator cycle of said member to said cutting tool, whereby said cutting tool is caused to be unidirectionally driven in a pulsating manner.
Claim 3
Dependent Claim
26 words
The combination of claim 1 wherein the periodic force means comprises an orbiting mass oscillator having multiple rotors phased for causing torsional vibration of said member.
Claim 4
Dependent Claim
191 words
In a torsional sonic drill member and the like, the combination of: a torsionally elastic member, periodic torsional force means coupled to said member for torsionally oscillating said member about its longitudinal axis at a torsional resonant frequency of the member, said force means comprising an orbiting mass oscillator having multiple rotors phased for causing torsional vibration of said member, means for driving said torsional force means, a cutting tool, and torsional rectifier means coupled to said elastic member for transmitting a unidirectional portion of the oscillatory cycle of said member to said cutting tool, said rectifier means comprising rectifier hammer means securely affixed to said elastic member about the outer wall thereof, a tool tube member attached to said cutting tool and having rectifier window means formed in the wall thereof and means for rotatably biasing said hammer means toward a wall of said window means, whereby said tool is caused to be unidirectionally driven in a pulsating manner. 4. The combination of claim 3 additionally including an annular sliding bearing wherein the tool tube member is coupled to the torsionally resonant member by means of said annular sliding bearing.
Claim 5
Dependent Claim
30 words
The combination of claim 93 additionally including a torsionally elastic tube wherein the tool tube member is coupled to the torsionally resonant member by means of a torsionally elastic tube.
Claim 6
Dependent Claim
30 words
The combination of claim 3 wherein said means for driving said oscillator comprises a mud turbine, said turbine adapted to be activated by the downward gravitational flow of drilling mud.
Claim 7
Dependent Claim
27 words
The combination of claim 3 additionally including elastic pillars wherein the tool tube member is coupled to the torsionally resonant member by means of said elastic pillars.
Claim 8
Dependent Claim
45 words
The combination of claim 7 wherein said elastic pillars comprise the structure formed by radially forming through the wall of said cylindrical tool tube member, a plurality of elongated slots, the longitudInal axes of which are parallel to the longitudinal axis of said tool tube.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |