US4355431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bridge element
Assignee: Fried Krupp AG
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Filing: 1980-05-23
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Granted: 1982-10-26
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Expires: 2000-05-23
Abstract
Abstract A floatable bridge element for briding obstacles, especially bodies of water. Automatically latching coupling elements are provided along one longitudinal side and along both end faces in such a way that the bridge element can be widened with a further, identically or correspondingly embodied bridge element into a bridge, or with further bridge elements can be extended into a "single-track" or "dual-track" floating bridge. The bridge element includes a flat hollow compartment panel filled with foam and simultaneously serving as a roadway, and below which extends a buoyancy body likewise filled with foam and rigidly connected therewith. The buoyancy body, for reducing the impact pressure in flowing waters, is inclined or angled-off along the lower edge of that longitudinal side of the bridge element not provided with coupling elements. Along the same longitudinal side, an elevated hollow web member is preferably arranged which is likewise filled with foam and angled-off underneath; this hollow web member besides providing a reinforcement of the bridge element, makes possible a separation of a walkway from the roadway and the avoidance of overflow.
Inventors
- 👤 Wolfgang Diefendahl
- 👤 Karl-Friedrich Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:37
CPC Classifications
E; E01; E01D; E01D15/00; E01D15/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
174 words
A floatable bridge element, having a roadway and being inclined at the lower edge along one longitudinal side, for bridging obstacles, especially bodies of water, said bridge element comprising in combination: a substantially flat hollow compartment panel, the upper surface of which serves as said roadway; a rigid buoyancy body extending below and rigidly connected with the lower surface of said compartment panel, a portion of the underside of said buoyancy body being inclined; and coupling means, connected to said compartment panel along the non-inclined longitudinal side of said bridge element as well as along both end faces, for interconnecting bridge elements along their non-inclined longitudinal sides as well as along their end faces, said coupling means including at least one coupling section, which conforms to a coupling section of another bridge element and is adapted to latch same during interconnection of the pertaining bridge elements, said coupling means being arranged in such a way that at least during end face interconnection of two bridge elements, the latter are in alignment with each other.
Claim 2
Dependent Claim
174 words
A floatable bridge element, having a roadway and being inclined at the lower edge along one longitudinal side, for bridging obstacles, especially bodies of water, said bridge element comprising in combination: a substantially flat hollow compartment panel, the upper surface of which serves as said roadway; a rigid buoyancy body extending below and rigidly connected with the lower surface of said compartment panel, a portion of the underside of said buoyancy body being inclined; and coupling means, connected to said compartment panel along the non-inclined longitudinal side of said bridge element as well as along both end faces, for interconnecting bridge elements along their non-inclined longitudinal sides as well as along their end faces, said coupling means including at least one coupling section, which conforms to a coupling section of another bridge element and is adapted to latch same during interconnection of the pertaining bridge elements, said coupling means being arranged in such a way that at least during end face interconnection of two bridge elements, the latter are in alignment with each other.
Claim 3
Dependent Claim
44 words
A bridge element in combination according to claim 1, which includes an elevated hollow web member connected to said compartment panel along the inclined longitudinal side of said bridge element, that underside of said hollow member which adjoins said inclined longitudinal side rising outwardly.
Claim 4
Dependent Claim
19 words
A bridge element in combination according to claim 2, which includes foldable guardrail means located along longitudinal sides thereof.
Claim 5
Dependent Claim
37 words
A bridge element in combination according to claim 3, in which the inclined longitudinal side thereof is provided with a baffle which is unfoldable or extensible upwardly at an incline from the underside of said bridge element.
Claim 6
Dependent Claim
19 words
A bridge element in combination according to claim 4, in which said baffle is subdivided in the longitudinal direction.
Claim 7
Dependent Claim
31 words
A bridge element in combination according to claim 2, in which said compartment panel, said buoyancy body, and said hollow web member are filled with foam of a suitable light material.
Claim 8
Dependent Claim
24 words
A bridge element in combination according to claim 1, in which conforming coupling sections of pertaining bridge elements are automatically latchable with one another.
Claim 9
Dependent Claim
45 words
A bridge element in combination according to claim 3, which, in the region of its upper longitudinal edges, is provided with a projecting profile part limited near its outer extremity with a bead and having handle openings and bores for supporting said guardrail means therewith.
References Cited (Backward Citations)
US2291078A
Cited
US3036539A
Cited
US3009326A
Cited
US3296639A
Cited
US3504389A
Cited
US3691974A
Cited
US4145786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |