US3832080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrator, especially a self propelled reversible tamper
Assignee: HEINRICH MACHINERY AND TOOL Manufacturing
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Filing: 1972-06-28
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Granted: 1974-08-27
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Expires: 1992-06-28
Abstract
Abstract A vibrator, especially a self propelled reversible tamper having a base plate that is turned up at both ends, comprising a housing, a driving shaft and a driven shaft journaled in the housing, each shaft having an eccentric mounted thereon and a gear on each shaft for rotating them in opposite directions at the same speed. The eccentric on one shaft has a fixed connection with respect to its gear in a single angular relation thereto. The eccentric on the other shaft has a selective connection with respect to its gear in a plurality of angular relations thereto and the selective connection can be changed by suitable means from one angular relation to another during operation of the vibrator. This enables the tamper to be self propelling in two opposite directions. A handle pivoted to the base plate for movement through an arc from an operating position at one end to an operating position at the opposite end of the base plate may be provided to guide the moving tamper.
Inventors
- 👤 K Stoecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:03
CPC Classifications
E; E02; E02D; E02D3/00; E02D3/02; E02D3/046; E02D3/074; B; B06; B06B; B06B1/00; B06B1/10; B06B1/16; B06B1/161; B06B1/166; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18344
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
191 words
A vibrator comprising: a. a housing; b. a driving shaft journaled in bearings supported by said housing having a driving gear and an eccentric weight thereon; c. a driven shaft journaled in bearings supported by said housing in horizontal spaced relation from said driving shaft having a driven gear and an eccentric weight thereon; d. means providing an operative connection between said gears to drive them and the eccentrics mounted on the shaft with them in opposite directions at the same speed to produce a force having vertical and horizontal components; e. shift means for changing the angular relation of the eccentric weight on one of said shafts with respect to the eccentric weight on the other of said shafts to change the direction of the horizontal component of force; and f. means outside of said housing for operating said shift means while the shafts are rotating comprising a pivoted lever, a kick plate on said lever at each side of said pivot in position to be engaged by the foot of an operator to reverse at will the direction of the horizontal component of force by kicking said plates alternately.
Claim 2
Dependent Claim
191 words
A vibrator comprising: a. a housing; b. a driving shaft journaled in bearings supported by said housing having a driving gear and an eccentric weight thereon; c. a driven shaft journaled in bearings supported by said housing in horizontal spaced relation from said driving shaft having a driven gear and an eccentric weight thereon; d. means providing an operative connection between said gears to drive them and the eccentrics mounted on the shaft with them in opposite directions at the same speed to produce a force having vertical and horizontal components; e. shift means for changing the angular relation of the eccentric weight on one of said shafts with respect to the eccentric weight on the other of said shafts to change the direction of the horizontal component of force; and f. means outside of said housing for operating said shift means while the shafts are rotating comprising a pivoted lever, a kick plate on said lever at each side of said pivot in position to be engaged by the foot of an operator to reverse at will the direction of the horizontal component of force by kicking said plates alternately.
Claim 3
Dependent Claim
165 words
A self propelled reversible tamper comprising: a. a housing; b. a driving shaft journaled in bearings supported by said housing having an eccentric weight thereon; c. a driven shaft journaled in bearings supported by said housing having an eccentric weight thereon; d. a gear on each shaft for rotating said shafts in opposite directions at the same speed; e. means for making fixed connections of the eccentric weight on one of said shafts to the gear on its shaft in a single angular relation thereto; f. means for making selective connection of the eccentric weight on the other of said shafts to the gear on its shaft in a plurality of different angular relations thereto; g. a base plate to which said housing is secured; h. a motor mounted on said base plate to drive said driving shaft; and i. means including a kick plate outside said housing at each end of the tamper for changing said selective connection from one angular relation to another.
Claim 4
Dependent Claim
165 words
A self propelled reversible tamper comprising: a. a housing; b. a driving shaft journaled in bearings supported by said housing having an eccentric weight thereon; c. a driven shaft journaled in bearings supported by said housing having an eccentric weight thereon; d. a gear on each shaft for rotating said shafts in opposite directions at the same speed; e. means for making fixed connections of the eccentric weight on one of said shafts to the gear on its shaft in a single angular relation thereto; f. means for making selective connection of the eccentric weight on the other of said shafts to the gear on its shaft in a plurality of different angular relations thereto; g. a base plate to which said housing is secured; h. a motor mounted on said base plate to drive said driving shaft; and i. means including a kick plate outside said housing at each end of the tamper for changing said selective connection from one angular relation to another.
Claim 5
Dependent Claim
15 words
a driving shaft journaled in bearings supported by said housing having an eccentric weight thereon;
Claim 6
Dependent Claim
15 words
a driving shaft journaled in bearings supported by said housing having an eccentric weight thereon;
Claim 7
Dependent Claim
8 words
a driving gear fastened to said driving shaft;
Claim 8
Dependent Claim
8 words
a driving gear fastened to said driving shaft;
Claim 9
Dependent Claim
28 words
A self propelled reversible tamper as set forth in claim 2 in which a handle is secured to the base plate for operating the tamper from each end.
Claim 10
Dependent Claim
15 words
a driven shaft journaled in bearings supported by said housing having an eccentric weight thereon;
Claim 11
Dependent Claim
15 words
a driven shaft journaled in bearings supported by said housing having an eccentric weight thereon;
Claim 12
Dependent Claim
81 words
A self propelled reversible tamper comprising a base plate and a vibrator mounted thereon including a driving shaft having a driving gear and an eccentric mounted thereon for rotation therewith; a driven shaft having an eccentric and a driven gear mounted thereon, said eccentric being selectively adjustable to at least two different relative angular relations to each other; and external means at opposite ends of said tamper for selectively adjusting the angular relations of said eccentrics while the parts are rotating.
Claim 13
Dependent Claim
81 words
A self propelled reversible tamper comprising a base plate and a vibrator mounted thereon including a driving shaft having a driving gear and an eccentric mounted thereon for rotation therewith; a driven shaft having an eccentric and a driven gear mounted thereon, said eccentric being selectively adjustable to at least two different relative angular relations to each other; and external means at opposite ends of said tamper for selectively adjusting the angular relations of said eccentrics while the parts are rotating.
Claim 14
Dependent Claim
8 words
a driven gear mounted on said driven shaft;
Claim 15
Dependent Claim
8 words
a driven gear mounted on said driven shaft;
Claim 16
Dependent Claim
31 words
A self propelled reversible tamper as set forth in claim 4 in which said means for selectively adjusting said angular relations includes a kick plate at each of said opposite ends.
Claim 17
Dependent Claim
43 words
A self propelled reversible tamper as set forth in claim 4 which has a handle pivoted to said tamper for movement through an arc from an operating position at one end to an operating position at the opposite end of said base plate.
Claim 18
Dependent Claim
39 words
means for making an adjustable driving connection through said driving and driven gears to the eccentric weight on said driven shaft to fix it in a plurality of different angular relations to the eccentric weight on said driving shaft;
Claim 19
Dependent Claim
39 words
means for making an adjustable driving connection through said driving and driven gears to the eccentric weight on said driven shaft to fix it in a plurality of different angular relations to the eccentric weight on said driving shaft;
Claim 20
Dependent Claim
44 words
an external pivoted shift lever including a kick plate at each side of said pivot in position to be engaged by the foot of an operator for selectively adjusting said means to each such fixed relation, and c. means for rotating said driving shaft.
Claim 21
Dependent Claim
44 words
an external pivoted shift lever including a kick plate at each side of said pivot in position to be engaged by the foot of an operator for selectively adjusting said means to each such fixed relation, and c. means for rotating said driving shaft.
Claim 22
Dependent Claim
91 words
A self propelled reversible tamper comprising: a. a base plate having upturned ends; b. a vibrator mounted on said base plate to provide vertical and horizontal components of force; c. means for reversing the direction of said horizontal components of force; d. a handle pivoted to said tamper for movement through an arc from an operating position at one end to an operating position at the opposite end of said base plate; and e. a kick plate independent of said handle at each end of said tamper for operating said means.
Claim 23
Dependent Claim
91 words
A self propelled reversible tamper comprising: a. a base plate having upturned ends; b. a vibrator mounted on said base plate to provide vertical and horizontal components of force; c. means for reversing the direction of said horizontal components of force; d. a handle pivoted to said tamper for movement through an arc from an operating position at one end to an operating position at the opposite end of said base plate; and e. a kick plate independent of said handle at each end of said tamper for operating said means.
Claim 24
Dependent Claim
21 words
A self propelled reversible tamper comprising: a. a base plate having upturned ends; b. a vibrator for said base plate comprising:
Claim 25
Dependent Claim
21 words
A self propelled reversible tamper comprising: a. a base plate having upturned ends; b. a vibrator for said base plate comprising:
Claim 26
Dependent Claim
23 words
A tamper as set forth in claim 8 in which a lever and kick plates are provided at each end of said tamper.
Claim 27
Dependent Claim
21 words
A tamper as set forth in claim 9 in which a handle is provided for operating the tamper from each end.
Claim 28
Dependent Claim
41 words
A tamper as set forth in claim 8 in which a handle is pivoted to said tamper for movement through an arc from an operating position at one end to an operating position at the other end of said base plate.
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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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |