US3860292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rock boring cutter with internal vibrator
Assignee: J C SODING AND HALBACH
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Filing: 1972-11-28
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Granted: 1975-01-14
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Expires: 1992-11-28
Abstract
Abstract A boring device is disclosed having a roller equipped with one or more ring teeth. The roller is caused to vibrate by an internally mounted bob weight. The bearings supporting the roller are of a resilient material to insulate the supporting structure for the roller from the vibration of the roller. In one form of the invention the roller has plural ring teeth of varying diameter and in another form, plural rollers are used with the ring teeth of one roller positioned at an acute angle to those of an adjacent roller.
Inventors
- 👤 Karl Gunther Bechem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:09
CPC Classifications
E; E21; E21D; E21D9/00; E21D9/10; E21D9/1006; E21D9/104; E21C; E21C25/00; E21C25/16; E21C25/18; E21D9/1013; E21D9/1046
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
104 words
A rock boring device comprising a roller holder, a cutting ridge equipped roller arranged to roTate about an axis for cutting rock, a support element and bearing means carrying the roller on said support element and arranged on at least one side of a plane perpendicular to the axis and passing through the roller, said bearing means being of an elastic material for damping the transmission of radial movement of the roller to said support means and a rotary bob weight vibrator arranged inside the roller and carried in the frame so that relative radially directed movement which is resiliently opposed can take place.
Claim 2
Dependent Claim
104 words
A rock boring device comprising a roller holder, a cutting ridge equipped roller arranged to roTate about an axis for cutting rock, a support element and bearing means carrying the roller on said support element and arranged on at least one side of a plane perpendicular to the axis and passing through the roller, said bearing means being of an elastic material for damping the transmission of radial movement of the roller to said support means and a rotary bob weight vibrator arranged inside the roller and carried in the frame so that relative radially directed movement which is resiliently opposed can take place.
Claim 3
Dependent Claim
29 words
A device in accordance with claim 1, in which a bearing face on the roller is arranged to slide on a bearing face of said elastic material bearing means.
Claim 4
Dependent Claim
33 words
A device in accordance with claim 2, wherein the interface between said roller and said bearing means is lubricated whereby rotation of the roller with respect to the roller holder will not occur.
Claim 5
Dependent Claim
28 words
A device in accordance with claim 1, in which a bearing face on the roller is in non-sliding frictional engagement with a bearing face on the roller holder.
Claim 6
Dependent Claim
25 words
A device in accordance with claim 1, in which the bob weight vibrator is mounted for variable radial spacing from the axis of the roller.
Claim 7
Dependent Claim
42 words
A device in accordance with claim 1 in which a sleeve-like element is provided for supporting said cutting ridge in non-rotatable relationship, a low-friction bearing mounting said bob weight within said sleeve, said bearing means mounting said sleeve on said supporting element.
Claim 8
Dependent Claim
44 words
A device in accordance with claim 1 wherein said roller has a plurality of parallel circular cutting ridges, the middle one of said ridges being of the greatest diameter with those of the cutting edges on each side thereof being of progressively lesser diameter.
Claim 9
Dependent Claim
28 words
A device in accordance with claim 7 wherein said cutting ridges have spaced notches whereby each cutting ridge consists of a plurality of spaced segments of a circle.
Claim 10
Dependent Claim
37 words
A device as described in claim 1 wherein a pair of rollers are provided each having a cutting ridge, the cutting ridge on one roller being at an acute angle to the cutting ridge of the other.
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) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |