US3703127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rigid base earth compactor
Assignee: Individual
•
Filing: 1970-12-15
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Granted: 1972-11-21
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Expires: 1990-12-15
Abstract
Abstract An earth compactor having a unitary base with downwardly facing convex surfaces. A first vibrator assembly is mounted generally centrally of one surface and a second vibrator assembly is mounted generally centrally of the second surface. Each assembly includes an eccentrically mounted weight. The weights are rotated at a speed ratio of 2:1 relative to each other and are initially positioned so both weights are up relative to the shafts on which they rotate. Such phasing of the weights provides an upwardly directed simultaneous unweighting action which facilitates steering and moving the machine by an operator. In one embodiment the weights have the same mass. The impacts exerted on the earth by this machine have a complex waveform, including a band of frequencies which provide for optimum compacting of earth of various particle sizes and consistencies. In a second embodiment the slower rotating weight has a greater mass than the faster rotating weight. In another embodiment, the portion of the base associated with the slower rotating heavier weight is heavier than the portion of the base associated with the lighter faster rotating weight.
Inventors
- 👤 Benno Kaltenegger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:18
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/046; E02D3/074
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
217 words
A vibratory earth compacting machine including a rigid base plate comprising: a. a first bottom surface, and b. a second bottom surface spaced longitudinally of the machine from said first surface, c. both surfaces being arranged to contact said earth for compaction; d. a first weight eccentrically mounted for rotation about a first axis transverse to the machine and generally centered over said first surface, e. a second weight eccentrically mounted for rotation about a second axis transverse to the machine and generally centered over said second surface; f. first means to rotate said first weight for producing vibrations at a first frequency; g. second means to rotate said second weight for producing vibrations at a second frequency different from said first frequency; h. said rotating means including drive means for simultaneously rotating said weights in a predetermined periodically recurring pattern such that both weights occupy the same angular position on their respective axes at least once during several revolutions of one of the weights; i. said weights cooperating to vibrate said first surface of said rigid base plate at frequencies including a band of periodically recurring frequencies; and j. said weights cooperating to vibrate said second surface of said base plate at frequencies including a band of periodically recurring second frequencies different from said first frequencies.
Claim 2
Dependent Claim
217 words
A vibratory earth compacting machine including a rigid base plate comprising: a. a first bottom surface, and b. a second bottom surface spaced longitudinally of the machine from said first surface, c. both surfaces being arranged to contact said earth for compaction; d. a first weight eccentrically mounted for rotation about a first axis transverse to the machine and generally centered over said first surface, e. a second weight eccentrically mounted for rotation about a second axis transverse to the machine and generally centered over said second surface; f. first means to rotate said first weight for producing vibrations at a first frequency; g. second means to rotate said second weight for producing vibrations at a second frequency different from said first frequency; h. said rotating means including drive means for simultaneously rotating said weights in a predetermined periodically recurring pattern such that both weights occupy the same angular position on their respective axes at least once during several revolutions of one of the weights; i. said weights cooperating to vibrate said first surface of said rigid base plate at frequencies including a band of periodically recurring frequencies; and j. said weights cooperating to vibrate said second surface of said base plate at frequencies including a band of periodically recurring second frequencies different from said first frequencies.
Claim 3
Dependent Claim
217 words
A vibratory earth compacting machine including a rigid base plate comprising: a. a first bottom surface, and b. a second bottom surface spaced longitudinally of the machine from said first surface, c. both surfaces being arranged to contact said earth for compaction; d. a first weight eccentrically mounted for rotation about a first axis transverse to the machine and generally centered over said first surface, e. a second weight eccentrically mounted for rotation about a second axis transverse to the machine and generally centered over said second surface; f. first means to rotate said first weight for producing vibrations at a first frequency; g. second means to rotate said second weight for producing vibrations at a second frequency different from said first frequency; h. said rotating means including drive means for simultaneously rotating said weights in a predetermined periodically recurring pattern such that both weights occupy the same angular position on their respective axes at least once during several revolutions of one of the weights; i. said weights cooperating to vibrate said first surface of said rigid base plate at frequencies including a band of periodically recurring frequencies; and j. said weights cooperating to vibrate said second surface of said base plate at frequencies including a band of periodically recurring second frequencies different from said first frequencies.
Claim 4
Dependent Claim
217 words
A vibratory earth compacting machine including a rigid base plate comprising: a. a first bottom surface, and b. a second bottom surface spaced longitudinally of the machine from said first surface, c. both surfaces being arranged to contact said earth for compaction; d. a first weight eccentrically mounted for rotation about a first axis transverse to the machine and generally centered over said first surface, e. a second weight eccentrically mounted for rotation about a second axis transverse to the machine and generally centered over said second surface; f. first means to rotate said first weight for producing vibrations at a first frequency; g. second means to rotate said second weight for producing vibrations at a second frequency different from said first frequency; h. said rotating means including drive means for simultaneously rotating said weights in a predetermined periodically recurring pattern such that both weights occupy the same angular position on their respective axes at least once during several revolutions of one of the weights; i. said weights cooperating to vibrate said first surface of said rigid base plate at frequencies including a band of periodically recurring frequencies; and j. said weights cooperating to vibrate said second surface of said base plate at frequencies including a band of periodically recurring second frequencies different from said first frequencies.
Claim 5
Dependent Claim
68 words
A vibratory earth compacting machine according to claim 1 wherein said first weight is adapted to rotate at an essentially constant speed; said second weight is adapted to rotate at an essentially constant speed which is one-half the speed of rotation of said first weight; and both weights occupy the same vertical position on their respective axes at least once during several revolutions of one of the weights.
Claim 6
Dependent Claim
40 words
A vibratory earth compacting machine according to claim 1 wherein said first surface of said base plate is convex; said second surface of said base plate is convex; and said second weight has a greater mass than said first weight.
Claim 7
Dependent Claim
36 words
A vibratory earth compacting machine according to claim 2 wherein said second surface is on a portion of the base plate having a greater mass than the portion of the base plate having said first surface.
Claim 8
Dependent Claim
75 words
A vibratory earth compacting machine comprising: a. a rigid base plate having a plurality of arcuate convex bottom portions formed in said plate and arranged to contact the earth for compaction, b. said arcuate portions extending transversely to the machine and being disposed longitudinally with respect to each other, c. vibrating means mounted on said base plate for vibrating said plate, and d. said vibrating means being disposed in spaced relation above said arcuate portions.
Claim 9
Dependent Claim
75 words
A vibratory earth compacting machine comprising: a. a rigid base plate having a plurality of arcuate convex bottom portions formed in said plate and arranged to contact the earth for compaction, b. said arcuate portions extending transversely to the machine and being disposed longitudinally with respect to each other, c. vibrating means mounted on said base plate for vibrating said plate, and d. said vibrating means being disposed in spaced relation above said arcuate portions.
Claim 10
Dependent Claim
31 words
A compacting machine as defined in claim 5 wherein a rigid frame member is spaced above said base plate, said frame member being supported by spring means from said base plate.
Claim 11
Dependent Claim
24 words
A compacting machine as defined in claim 6 wherein a power drive means is mounted on said frame member to drive said vibrating means.
Claim 12
Dependent Claim
22 words
A compacting machine as defined in claim 5 wherein said vibrating means includes a vibrating mechanism disposed above each said arcuate portion.
Claim 13
Dependent Claim
26 words
A compacting machine as defined in claim 5 wherein said arcuate portions include a first arcuate portion having a greater mass than a second arcuate portion.
Claim 14
Dependent Claim
55 words
A compacting machine as defined in claim 5 wherein said vibrating means includes a first vibrating means and a second vibrating means, said first vibrating means includes a first weight eccentrically mounted for rotation about a first axis, and said second vibrating means includes a second weight eccentrically mounted for rotation about a second axis.
Claim 15
Dependent Claim
50 words
A coMpacting machine as defined in claim 10 wherein said first axis is disposed in a vertical plane which includes the center of curvature of a first arcuate portion, and said second axis is disposed in a vertical plane which includes the center of curvature of a second arcuate portion.
Claim 16
Dependent Claim
34 words
A compacting machine as defined in claim 5 wherein said vibrating means includes a first vibrating and a second vibrating means, and means to operate said first and second vibrating means at different frequencies.
Claim 17
Dependent Claim
36 words
An earth compacting machine according to claim 9 wherein said vibrating means includes a first and second vibrating means, and means for operating said second vibrating means at a higher frequency than said first vibrating means.
Claim 18
Dependent Claim
35 words
A compacting machine as defined in claim 9 wherein said vibrating means includes a first vibrating means and a second vibrating means, and means to operate said first and second vibrating means at different frequencies.
Claim 19
Dependent Claim
17 words
An earth compacting machine according to claim 12 wherein said first frequency is approximately one-half second frequency.
Claim 20
Dependent Claim
48 words
An earth compacting machine according to claim 12 wherein said first means includes a first weight mounted eccentrically for rotation; said second means includes a second weight mounted eccentrically for rotation; and said operating means includes means to rotate said weights at different speeds relative to each other.
Claim 21
Dependent Claim
23 words
An earth compacting machine according to claim 10 wherein said first weight has a mass greater than the mass of said second weight.
Claim 22
Dependent Claim
23 words
An earth compacting machine according to claim 17 including means to rotate said second weight at a speed greater than said first weight.
Claim 23
Dependent Claim
53 words
An earth compacting machine according to claim 10 wherein said first weight is mounted on a first shaft; said second weight is mounted on a second shaft; motor means rotates one of said shafts; and drive means between said shafts for rotating said other shaft in response to rotation of said one shaft.
Claim 24
Dependent Claim
67 words
An earth compacting machine according to claim 19 wherein said weights are rotated and positioned relative to each other such that both weights occupy a top vertical position simultaneously during each complete revolution of one of said weights; whereby, an upwardly directed force simultaneously acts on the portions of the base of both said convex surfaces to provide an unweighting action facilitating movement of the compacting machine.
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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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |