US3774659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic timber cutting apparatus
Assignee: Individual
•
Filing: 1972-07-20
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Granted: 1973-11-27
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Expires: 1992-07-20
Abstract
Abstract Sonic energy is coupled from an orbiting mass oscillator to a drive member. Unidirectional pulses of vibrational energy are coupled from the drive member through an acoustical rectifier to a cutter blade, the blade being biased against timber to be cut. The vibrational energy imparted to the cutter blade thus efficiently implements the cutting action.
Inventors
- 👤 A Bodine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:20
CPC Classifications
A; A01; A01G; A01G23/00; A01G23/02; A01G23/08; A01G23/087; A01G23/09
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
123 words
Apparatus for cutting standing timber comprising: a cutter blade, means for unidirectionally biasing said cutter blade against the timber to be cut, an orbiting mass oscillator, a substantially rigid member coupled to said orbiting mass oscillator to transmit the vibrational output thereof, means for driving said orbiting mass oscillator at a frequency which develops periodic force such as to cause bodily vibration of said rigid member, and sonic rectifier means for coupling unidirectional pulses of vibrational energy from said rigid member to said cutter blade, said rectifier means including said biasing means, whereby the blade member receives drive impulses from the rigid member during a portion of the vibratory cycles and is disengaged from said rigid member during another portion of said cycles.
Claim 2
Dependent Claim
123 words
Apparatus for cutting standing timber comprising: a cutter blade, means for unidirectionally biasing said cutter blade against the timber to be cut, an orbiting mass oscillator, a substantially rigid member coupled to said orbiting mass oscillator to transmit the vibrational output thereof, means for driving said orbiting mass oscillator at a frequency which develops periodic force such as to cause bodily vibration of said rigid member, and sonic rectifier means for coupling unidirectional pulses of vibrational energy from said rigid member to said cutter blade, said rectifier means including said biasing means, whereby the blade member receives drive impulses from the rigid member during a portion of the vibratory cycles and is disengaged from said rigid member during another portion of said cycles.
Claim 3
Dependent Claim
51 words
The device of claim 1 and further including an anvil member attached to said blade member, said rigid member being resiliently urged by said biasing means against said anvil member, a gap being formed between said rigid member and said anvil member during the aforementioned disengaged portion of the vibration cycle.
Claim 4
Dependent Claim
33 words
The device of claim 1 and further including articulated support means for said blade member, and means for driving said articulated support means to position said blade member along two mutually orthogonal axes.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |