US3828864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pile driver and extractor
Assignee: H AND M VIBRO Inc
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Filing: 1973-02-26
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Granted: 1974-08-13
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Expires: 1993-02-26
Abstract
Abstract First and second support frames are detachably interconnected to each other by rubber torsion discs which permit resilient damping movement between the two frames. A bias weight is attached to the first frame and an eccentric weight is rotatably mounted to the second frame and driven by a hydraulic motor to develop vibratory motion. The second frame also includes first and second jaws for clamping the piling therebetween. The device is cable suspended by a crane attached to the first frame and is insulated from the vibratory motion by the torsion discs. Preferably, two eccentric weights are driven about separate shafts in counter-relative rotation synchronized out of phase to exert uniaxial vibratory force on the piling while cancelling lateral forces.
Inventors
- 👤 E Haverkamp
- 👤 G Morren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:19
CPC Classifications
E; E02; E02D; E02D13/00; E02D13/10; E02D7/00; E02D7/18
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
252 words
Apparatus for driving and extracting elongated piling in a plane comprising, in combination: first and second support means; resilient rubber torsion means interconnecting said first and second support means permitting resilient relative movement between said support means, said torsion means having spaced ends, one end of said torsion means being connected to said first support means and the other end being connected to said second support means, said torsion means having an axis extending from said one end to said other End, said axis being generally perpendicular to the driven or extracting movement of the piling in their normal relaxed position; a bias weight attached to said first support means, said first support means including means for attaching said apparatus to a boom or crane; jaw means attached to said second support means including a clamping means for clamping a piling located between said jaw means; first and second shafts rotatably fixed to said second support means and spaced from each other on opposite sides of the plane extending between said jaw means; the axes of said shafts being perpendicular to the direction of movement of the piling; an eccentric weight fixed to each of said shafts; and motor means for driving each of said eccentric weights about the axes of said shafts in counter-relative rotation out of phase to exert uniaxial vibratory force on the piling in a direction within or parallel to the movement of said piling and generally cancelling vibratory forces in directions lateral the movement of said piling.
Claim 2
Dependent Claim
252 words
Apparatus for driving and extracting elongated piling in a plane comprising, in combination: first and second support means; resilient rubber torsion means interconnecting said first and second support means permitting resilient relative movement between said support means, said torsion means having spaced ends, one end of said torsion means being connected to said first support means and the other end being connected to said second support means, said torsion means having an axis extending from said one end to said other End, said axis being generally perpendicular to the driven or extracting movement of the piling in their normal relaxed position; a bias weight attached to said first support means, said first support means including means for attaching said apparatus to a boom or crane; jaw means attached to said second support means including a clamping means for clamping a piling located between said jaw means; first and second shafts rotatably fixed to said second support means and spaced from each other on opposite sides of the plane extending between said jaw means; the axes of said shafts being perpendicular to the direction of movement of the piling; an eccentric weight fixed to each of said shafts; and motor means for driving each of said eccentric weights about the axes of said shafts in counter-relative rotation out of phase to exert uniaxial vibratory force on the piling in a direction within or parallel to the movement of said piling and generally cancelling vibratory forces in directions lateral the movement of said piling.
Claim 3
Dependent Claim
40 words
Apparatus according to claim 1 wherein said rubber torsion means includes a plurality of rubber discs, each of said discs being secured at one end to said first support means and at the other end to said second support means.
Claim 4
Dependent Claim
32 words
Apparatus according to claim 2 wherein said first and second support means are partially telescoped within each other, said discs being interconnected to each of said support means within said overlapping portions.
Claim 5
Dependent Claim
43 words
Apparatus according to claim 3 wherein said second support means includes a front and rear face partially telescoped within said first support means, said apparatus including at least two pairs of vertically spaced discs connected to each face of said second support means.
Claim 6
Dependent Claim
24 words
Apparatus according to claim 1 wherein said apparatus further includes a means for maintaining the synchronized counter-rotation of said eccentric weights out of phase.
Claim 7
Dependent Claim
54 words
Apparatus according to claim 5 wherein said means for maintaining the synchronized rotation of said eccentric weights comprises a continuous chain in mesh engagement with sprockets mounted on each of said shafts whereby rotation of one of said shafts illicits a corresponding synchronized rotation of the other of said shafts in the opposite direction.
Claim 8
Dependent Claim
67 words
Apparatus according to claim 1 wherein said jaw means includes first and second spaced jaws, said clamping means comprising a hydraulic actuated piston movable in a cylinder, said piston and cylinder being mounted within one of said jaws, said piston being movable in a direction generally perpendicular to said piling and exerting a clamping force between the face of said piston and the other of said jaws.
Claim 9
Dependent Claim
62 words
Apparatus according to claim 7 wherein each of said jaw means includes a flat face spaced from each other, said piston and cylinder being loosely mounted in said one jaw means whereby as said piston is actuated, said piston is self-aligning to exert a force on said piling clamped therebetween in a direction perpendicular to the face of said other jaw means.
Claim 10
Dependent Claim
34 words
Apparatus according to claim 8 wherein said clamping means includes spring means biasing said piston away from clamping engagement with a piling for releasing said piling when hydraulic pressure to said piston is removed.
Claim 11
Dependent Claim
15 words
Apparatus according to claim 9 wherein said first and second support means are detachably interconnected.
Claim 12
Dependent Claim
18 words
Apparatus according to claim 1 wherein said motor means comprise a hydraulic motor for driving each eccentric weight.
Claim 13
Dependent Claim
202 words
Apparatus for driving and extracting elongated piling in a plane comprising, in combination: first and second support frame detachably interconnected by a plurality of resilient rubber torsion means, said torsion means insulating said first support frame from vibrations of said second support frame, said torsion means having spaced ends, one end of said torsion means being connected to said first support means and the other end being connected to said second support means, said torsion Means having an axis extending from said one end to said other end, said axis being generally perpendicular to the driven or extracting movement of the piling in their normal relaxed position; a bias weight attached to said first support frame, said first support frame and attached second support frame being supported by a crane or the like; jaw means extending from said second support frame for clamping a piling located generally in a plane extending between the jaw means; an eccentric mass rotatably mounted on said second support frame about an axis perpendicular to the driven or extracted direction of said piling; and a motor for driving said eccentric mass to develop uniaxial forces in the plane of said piling to drive or extract said piling.
Claim 14
Dependent Claim
202 words
Apparatus for driving and extracting elongated piling in a plane comprising, in combination: first and second support frame detachably interconnected by a plurality of resilient rubber torsion means, said torsion means insulating said first support frame from vibrations of said second support frame, said torsion means having spaced ends, one end of said torsion means being connected to said first support means and the other end being connected to said second support means, said torsion Means having an axis extending from said one end to said other end, said axis being generally perpendicular to the driven or extracting movement of the piling in their normal relaxed position; a bias weight attached to said first support frame, said first support frame and attached second support frame being supported by a crane or the like; jaw means extending from said second support frame for clamping a piling located generally in a plane extending between the jaw means; an eccentric mass rotatably mounted on said second support frame about an axis perpendicular to the driven or extracted direction of said piling; and a motor for driving said eccentric mass to develop uniaxial forces in the plane of said piling to drive or extract said piling.
Claim 15
Dependent Claim
31 words
Apparatus according to claim 12 wherein said rubber torsion means are discs secured at one end to said first support frame and at the other end to said second support frame.
Claim 16
Dependent Claim
26 words
Apparatus according to claim 13 wherein portions of said first and second support frames overlap, said discs being interconnected to said frames at said overlapping portions.
Claim 17
Dependent Claim
12 words
Apparatus according to claim 12 wherein said motor is a hydraulic motor.
Claim 18
Dependent Claim
210 words
Apparatus for driving and extracting elongated piling in a plane comprising, in combination: first and second support means detachably interconnected to each other, said first support means being positioned generally above said second support means, said support means including overlapping portions; resilient rubber torsion means interconnecting said first and second support means permitting resilient relative movement between said support means, said torsion means being interconnected to said support means at said overlapped portions and comprising discs positioned with their axes generally perpendicular to the directional movement of said piling when said torsion means are in their normal relaxed position; a bias weight attached to said first support means, said first support means and said attached second support means being cable supported by a crane; jaw means attached to and beneath said second support means for clamping a piling therebetween; first and second eccentric masses rotatably fixed to said second support means for rotation about spaced axes perpendicular to the directional movement of said pilings; said eccentric masses being rotated by hydraulic motors counter-rotatably out of phase to exert uniaxial vibratory force on the piling in a direction within or parallel to the movement of said piling and generally cancelling vibratory forces in directions lateral to the movement of said piling.
Claim 19
Dependent Claim
210 words
Apparatus for driving and extracting elongated piling in a plane comprising, in combination: first and second support means detachably interconnected to each other, said first support means being positioned generally above said second support means, said support means including overlapping portions; resilient rubber torsion means interconnecting said first and second support means permitting resilient relative movement between said support means, said torsion means being interconnected to said support means at said overlapped portions and comprising discs positioned with their axes generally perpendicular to the directional movement of said piling when said torsion means are in their normal relaxed position; a bias weight attached to said first support means, said first support means and said attached second support means being cable supported by a crane; jaw means attached to and beneath said second support means for clamping a piling therebetween; first and second eccentric masses rotatably fixed to said second support means for rotation about spaced axes perpendicular to the directional movement of said pilings; said eccentric masses being rotated by hydraulic motors counter-rotatably out of phase to exert uniaxial vibratory force on the piling in a direction within or parallel to the movement of said piling and generally cancelling vibratory forces in directions lateral to the movement of said piling.
Claim 20
Dependent Claim
69 words
Apparatus according to claim 16 wherein said apparatus further includes a means for maintaining the synchronized counter-rotation of said eccentric masses out of phase, said means for maintaining the synchronized counter-rotation of said eccentric masses comprising a continuous chain in mesh engagement with means associated with said masses whereby rotation of one of said masses illicits a corresponding synchronized out of phase rotation of the other of said masses.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |