Patent US3817646A successfully refreshed from Google Patents.
US3817646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibration generator
Assignee: Wacker Neuson Corp
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Filing: 1973-04-30
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Granted: 1974-06-18
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Expires: 1993-04-30
Abstract
Abstract Vibratory thrust is generated by a rotating crankshaft and controlled orbital movement of a single weight pivoted to the crankpin of the crankshaft. As the crankshaft rotates the center of gravity of the weight moves back and forth on a vector through the crankshaft axis. The direction of the vector is adjustable within a substantial angular range about the crankshaft axis.
Inventors
- 👤 R Opderbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:46
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/046; E02D3/074
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
110 words
A vibratory apparatus comprising a tamping body, a vibration generator housing rigidly secured to said tamping body; a crankshaft having a journal and a crank pin within said housing, bearing means in said housing supporting said crankshaft journal for rotation on a horizontal axis; a weight member eccentrically connected with said crank pin in rotatable relation thereto; a pinion in axial alignment with said crank pin non-rotatably secured to said weight member; an internal ring gear in mesh with said pinion rotatably mounted within said housing coaxially with said crankshaft journal; and adjusting means for said ring gear operable to selectively secure said ring gear in different rotatively adjusted positions.
Claim 2
Dependent Claim
110 words
A vibratory apparatus comprising a tamping body, a vibration generator housing rigidly secured to said tamping body; a crankshaft having a journal and a crank pin within said housing, bearing means in said housing supporting said crankshaft journal for rotation on a horizontal axis; a weight member eccentrically connected with said crank pin in rotatable relation thereto; a pinion in axial alignment with said crank pin non-rotatably secured to said weight member; an internal ring gear in mesh with said pinion rotatably mounted within said housing coaxially with said crankshaft journal; and adjusting means for said ring gear operable to selectively secure said ring gear in different rotatively adjusted positions.
Claim 3
Dependent Claim
56 words
A vibratory apparatus as set forth in claim 1 wherein said adjustment means comprise a back and forth movable hand lever, and connecting means between said hand lever and said ring gear operable to rock said ring gear back and forth about its axis in response to back and forth movements, respectively, of said hand lever.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |