Patent US3814533A successfully refreshed from Google Patents.
US3814533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compactor for soil and the like with improved vibrator assembly
Assignee: Individual
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Filing: 1972-11-03
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Granted: 1974-06-04
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Expires: 1992-11-03
Abstract
Abstract A compactor for soil and the like includes a pair of concentric weights which are disposed to rotate about the same axis and with the weights being disposed concentrically on different radii with respect to the axis. More specifically, one eccentric weight and an associated bevel gear are fixedly mounted to the drive shaft which defines the said axis, while the other weight and its associated bevel gear are freely rotatable thereon. The bevel gears are connected by a pinion which is mounted on a shift ring disposed on one side of the weights, which in turn is freely mounted on the drive shaft and freely rotatable within the vibrator housing. A differential drive means is thus provided. Means are provided to hold the shift ring in the desired position, and to permit rotation of the ring when a different angle of force is desired. In one embodiment, a locking pin selectively engages abutments on the ring. In another embodiment, an adjustable cable holds the ring in position.
Inventors
- 👤 H Buck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:18
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/046; E02D3/074
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
237 words
In a compactor for soil aNd the like and with said compactor having a frame and motive means on the frame, a vibrator assembly on said frame and driven by said motive means for producing compacting forces, said vibrator assembly comprising: a. a drive shaft defining an axis and connected to said motive means, b. a pair of eccentric weights disposed to rotate about said axis and with said weights being disposed concentrically on different length radii with respect to said axis, c. the first of said pair of weights being fixed to said shaft and the second of said pair of weights being freely mounted for rotation about said shaft, d. differential drive means for said weights and with said drive means comprising: 1. a first bevel gear fixed to said shaft for association with said first weight, 2. a second bevel gear freely mounted for rotation on said shaft for association with said second weight, 3. and a pinion joining said first and second bevel gears, e. and means for controlling the setting of said differential drive means to thereby control the angle of concentric coincidence of said weights and of the resultant thrust created by said coincidence during operation of said differential drive means, said setting controlling means comprising: 1. a normally fixed shift member on which said pinion is rotatably mounted, 2. said shift member being freely mounted for rotation about said shaft.
Claim 2
Dependent Claim
237 words
In a compactor for soil aNd the like and with said compactor having a frame and motive means on the frame, a vibrator assembly on said frame and driven by said motive means for producing compacting forces, said vibrator assembly comprising: a. a drive shaft defining an axis and connected to said motive means, b. a pair of eccentric weights disposed to rotate about said axis and with said weights being disposed concentrically on different length radii with respect to said axis, c. the first of said pair of weights being fixed to said shaft and the second of said pair of weights being freely mounted for rotation about said shaft, d. differential drive means for said weights and with said drive means comprising: 1. a first bevel gear fixed to said shaft for association with said first weight, 2. a second bevel gear freely mounted for rotation on said shaft for association with said second weight, 3. and a pinion joining said first and second bevel gears, e. and means for controlling the setting of said differential drive means to thereby control the angle of concentric coincidence of said weights and of the resultant thrust created by said coincidence during operation of said differential drive means, said setting controlling means comprising: 1. a normally fixed shift member on which said pinion is rotatably mounted, 2. said shift member being freely mounted for rotation about said shaft.
Claim 3
Dependent Claim
17 words
a second bevel gear freely mounted for rotation on said shaft for association with said second weight,
Claim 4
Dependent Claim
17 words
a second bevel gear freely mounted for rotation on said shaft for association with said second weight,
Claim 5
Dependent Claim
60 words
The compactor of claim 1: a. in which said shift member is disposed on one side of both said weights, b. and in which one of said bevel gears is on a side of said shift member remote from said weights and the other of said bevel gears is disposed on the side of said shift member adjacent said weights.
Claim 6
Dependent Claim
11 words
said shift member being freely mounted for rotation about said shaft.
Claim 7
Dependent Claim
11 words
said shift member being freely mounted for rotation about said shaft.
Claim 8
Dependent Claim
11 words
said shift member being freely mounted for rotation about said shaft.
Claim 9
Dependent Claim
11 words
said shift member being freely mounted for rotation about said shaft.
Claim 10
Dependent Claim
54 words
and a pinion joining said first and second bevel gears, e. and means for controlling the setting of said differential drive means to thereby control the angle of concentric coincidence of said weights and of the resultant thrust created by said coincidence during operation of said differential drive means, said setting controlling means comprising:
Claim 11
Dependent Claim
54 words
and a pinion joining said first and second bevel gears, e. and means for controlling the setting of said differential drive means to thereby control the angle of concentric coincidence of said weights and of the resultant thrust created by said coincidence during operation of said differential drive means, said setting controlling means comprising:
Claim 12
Dependent Claim
102 words
In the compactor of claim 1: means to adjustably hold said shift member in a selected angular position relative to said shaft, said holding means comprising: a. a plurality of spaced abutment means disposed on said shift member, b. locking means normally engaging said abutment means to hold said shift member in position during rotation of said shaft and said differential drive means, c. and means to release said locking means from a respective abutment means so that rotation of said shaft and pinion will cause said shift member to automatically rotate until another abutment means is engaged by said locking means.
Claim 13
Dependent Claim
45 words
The compactor of claim 3 in which: a. said shift member has a generally annular periphery, b. each said abutment means comprises a notch circumferentially spaced along said periphery, c. and said locking means comprises a radially disposed pin biased toward engagement with said notches.
Claim 14
Dependent Claim
54 words
In the compactor of claim 1: means to adjustably hold said shift member in a selected angular position relative to said shaft, said holding means comprising: a. a looped cable connected to said shift member, b. and means to shift the position of said cable to provide infinite angular adjustment of said shift member.
Claim 15
Dependent Claim
29 words
The compactor of claim 5 in which: a. said shift member has a generally annular periphery having a groove therein, b. and said cable is disposed in said groove.
Claim 16
Dependent Claim
172 words
In a compactor for soil and the like and with said compactor having a frame and motive means on the frame, a vibrator assembly on said frame and driven by said motive means for producing compacting forces, said vibrator assembly comprising: a. a drive shaft defining an axis and connected to said motive means, b. a pair of eccentric weights disposed to rotate about said axis and with said weights being disposed concentrically on different length radii with respect to said axis, c. the first of said pair of weights being fixed to said shaft and the second of said pair of weights being freely mounted for rotation about said shaft, d. differential drive means for said weights and with said drive means including a plurality of gear elements, e. and means for cOntrolling the setting of said differential drive means to thereby control the angle of concentric coincidence of said weights and the resultant thrust created by said coincidence during operation of said differential drive means, said setting controlling means comprising:
Claim 17
Dependent Claim
172 words
In a compactor for soil and the like and with said compactor having a frame and motive means on the frame, a vibrator assembly on said frame and driven by said motive means for producing compacting forces, said vibrator assembly comprising: a. a drive shaft defining an axis and connected to said motive means, b. a pair of eccentric weights disposed to rotate about said axis and with said weights being disposed concentrically on different length radii with respect to said axis, c. the first of said pair of weights being fixed to said shaft and the second of said pair of weights being freely mounted for rotation about said shaft, d. differential drive means for said weights and with said drive means including a plurality of gear elements, e. and means for cOntrolling the setting of said differential drive means to thereby control the angle of concentric coincidence of said weights and the resultant thrust created by said coincidence during operation of said differential drive means, said setting controlling means comprising:
Claim 18
Dependent Claim
105 words
In the compactor of claim 7: means to adjustably hold said shift member in a selected angular position relative to said shaft, said holding means comprising: a. a plurality of spaced abutment means disposed on said shift member, b. locking means normally engaging said abutment means to hold said shift member in position during rotation of said shaft and said differential drive means, c. and means to release said locking means from a respective abutment means so that rotation of said shaft and said one gear element will cause said shift member to automatically rotate until another abutment means is engaged by said locking means.
Claim 19
Dependent Claim
45 words
The compactor of claim 8 in which: a. said shift member has a generally annular periphery, b. each said abutment means comprises a notch circumferentially spaced along said periphery, c. and said locking means comprises a radially disposed pin biased toward engagement with said notches.
Claim 20
Dependent Claim
54 words
In the compactor of claim 7: means to adjustably hold said shift member in a selected angular position relative to said shaft, said holding means comprising: a. a looped cable connected to said shift member, b. and means to shift the position of said cable to provide infinite angular adjustment of said shift member.
Claim 21
Dependent Claim
29 words
The compactor of claim 10 in which: a. said shift member has a generally annular periphery having a groove therein, b. and said cable is disposed in said groove.
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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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |