Patent US3828866A successfully refreshed from Google Patents.
US3828866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impulse driving apparatus
Assignee: Bomag Menck GmbH
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Filing: 1972-08-14
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Granted: 1974-08-13
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Expires: 1992-08-14
Abstract
Abstract An impulse driving apparatus, for use for example in pile driving, in which a plurality of striker members are released from a given height above an object to which impulses are to be given in such a way that the stricker members deliver impulses to the object either simultaneously or at pre-determined intervals of time.
Inventors
- 👤 J Jansz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:20
CPC Classifications
E; E02; E02D; E02D7/00; E02D7/02; E02D7/06; E02D7/10; Y; Y10; Y10S; Y10S173/00; Y10S173/01
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
180 words
An impulse driving apparatus for driving piles and other objects including a plurality of hammer members mounted for movement in the same direction and each having a striker face, the striker faces of the respective hammer members being located sideways relative to each other in the direction perpendicular to the direction of the movement of the hammer members whereby each striker face can independently deliver an impulse to the object to be driven, fluid-operated piston means, means coupling said piston means to said hammer members, said coupling means including a plate pivotally connected to the piston means, the hammer members being respectively connected to said plate at substantially equal distances from and at substantially equally spaced positions around said pivotal connection of the plate to the piston means, control means for controlling the supply of operating fluid to said piston means to cause said hammer members to move away from the object to which impulses are to be delivered and thereafter towards said object whereby each hammer member delivers an independent impulse to the object by its respective striker face.
Claim 2
Dependent Claim
180 words
An impulse driving apparatus for driving piles and other objects including a plurality of hammer members mounted for movement in the same direction and each having a striker face, the striker faces of the respective hammer members being located sideways relative to each other in the direction perpendicular to the direction of the movement of the hammer members whereby each striker face can independently deliver an impulse to the object to be driven, fluid-operated piston means, means coupling said piston means to said hammer members, said coupling means including a plate pivotally connected to the piston means, the hammer members being respectively connected to said plate at substantially equal distances from and at substantially equally spaced positions around said pivotal connection of the plate to the piston means, control means for controlling the supply of operating fluid to said piston means to cause said hammer members to move away from the object to which impulses are to be delivered and thereafter towards said object whereby each hammer member delivers an independent impulse to the object by its respective striker face.
Claim 3
Dependent Claim
19 words
An impulse driving apparatus as claimed in claim 1 having pivotal connections between the hammer members and the plate.
Claim 4
Dependent Claim
43 words
An impulse driving apparatus as claimed in claim 2 including resilient stop means arranged between the plate and each hammer member respectively to maintain each hammer member in a predetermined pivotal position relative to the plate when it is away from the object.
Claim 5
Dependent Claim
64 words
An impulse driving apparatus as claimed in claim 1 including wherein each hammer member comprises a cylinder, a piston within the cylinder attached to a striker member projecting from the cylinder and having a striker face, and a gas under pressure in the cylinder between the piston attached to the striker member and the end of the said cylinder remote from the striker member.
Claim 6
Dependent Claim
38 words
An impulse driving apparatus as claimed in claim 1 for sub-aqueous use, including a housing within which the apparatus is contained, the housing having means whereby compressed air can be introduced therein to exclude water from the apparatus.
Claim 7
Dependent Claim
134 words
An impulse driving apparatus for driving piles and the like under sub-aqueous conditions, comprising a substantially air-tight housing having at its lower end a vertical tubular guide portion which is open at its bottom and serves to guide the apparatus onto and to receive the top of a pile to be driven, hammer means mounted on guides for vertical movement within said housing and having a striker face at its lower end, hydraulically-operated piston means coupled to said hammer means for moving said hammer means between a lower position in which said striker face is above said guide portion and a raised position, control means for controlling the supply of operating fluid to said piston means, and means for introducing compressed air into said housing to exclude water therefrom when the apparatus is submerged.
Claim 8
Dependent Claim
134 words
An impulse driving apparatus for driving piles and the like under sub-aqueous conditions, comprising a substantially air-tight housing having at its lower end a vertical tubular guide portion which is open at its bottom and serves to guide the apparatus onto and to receive the top of a pile to be driven, hammer means mounted on guides for vertical movement within said housing and having a striker face at its lower end, hydraulically-operated piston means coupled to said hammer means for moving said hammer means between a lower position in which said striker face is above said guide portion and a raised position, control means for controlling the supply of operating fluid to said piston means, and means for introducing compressed air into said housing to exclude water therefrom when the apparatus is submerged.
Claim 9
Dependent Claim
52 words
Apparatus as claimed in claim 6, and including a pile cap captively mounted in said housing for limited vertical movement and positioned to rest on the top of a pile inserted in said guide portion and to be struck by the striker face of said hammer means when in its lower position.
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 |