US5042101A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible bridge
Assignee: Dornier GmbH
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Filing: 1989-04-27
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Granted: 1991-08-27
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Expires: 2009-04-27
Abstract
Abstract A collapsible bridge for military purposes is assembled from a plurality of similarly constructed and interconnected bridge elements, each including two track plates, two girders and several length adjusted diagonal struts and tie rods, interconnected and configured so that the angular orientation of the girders is adjustable in relation to the track places, these adjustments being different for different bridge elements such that either the interconnected track plates or the interconnected girders or both approximate arches.
Inventors
- 👤 Herbert Huether
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:12
CPC Classifications
E; E01; E01D; E01D15/00; E01D15/12; E01D15/127; E01D15/124
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
92 words
Collapsible bridge for military purposes comprised of a plurality of similarly constructed interconnecting bridge elements wherein each bridge element includes at least one track plate having a longitudinal directional dimension, at least one length adjustable girder extending generally in said directional dimension and at least one length adjustable diagonal strut and tie rod extending also in said directional dimension and being interconnected and configured so that the bridge element as a whole and individually is adjustable as to elevation and relative orientation of the girder with the respect to the track plate.
Claim 2
Dependent Claim
92 words
Collapsible bridge for military purposes comprised of a plurality of similarly constructed interconnecting bridge elements wherein each bridge element includes at least one track plate having a longitudinal directional dimension, at least one length adjustable girder extending generally in said directional dimension and at least one length adjustable diagonal strut and tie rod extending also in said directional dimension and being interconnected and configured so that the bridge element as a whole and individually is adjustable as to elevation and relative orientation of the girder with the respect to the track plate.
Claim 3
Dependent Claim
21 words
Bridge as in claim 1, at least one of said diagonal strut and girder being of telescoping and connectable arrestable construction.
Claim 4
Dependent Claim
17 words
Bridge as in claim 2, said telescoping construction having arch shaped projection cooperating with arch shaped grooves.
Claim 5
Dependent Claim
44 words
Bridge as in claim 1, each element has two track plates, two girders and an even number of diagonal struts which are respectively linked on the ends of the plates and the center of the girders, there being transverse connectors between the track plates.
Claim 6
Dependent Claim
20 words
Bridge as in claim 4, the transverse connectors including transverse carriers extending between and being connected to the two plates.
Claim 7
Dependent Claim
18 words
Bridge as in claim 2, the height to length ratio of the bridge being adjusted to about 1:20.
Claim 8
Dependent Claim
97 words
Collapsible bridge for military purposes comprised of a plurality of similarly constructed lengthwise interconnected bridge elements wherein each bridge element includes at least one track plate at least one length adjustable girder and at least one length adjusted diagonal strut and tie rod, all extending basically lengthwise and being interconnected and configured so that the angular orientation of the girder is adjustable in relation to the track plate, the mutual respective angular orientation are differently adjustable for different ones of the interconnected bridge elements such that either the track plates or the girders or both approximate arches.
Claim 9
Dependent Claim
97 words
Collapsible bridge for military purposes comprised of a plurality of similarly constructed lengthwise interconnected bridge elements wherein each bridge element includes at least one track plate at least one length adjustable girder and at least one length adjusted diagonal strut and tie rod, all extending basically lengthwise and being interconnected and configured so that the angular orientation of the girder is adjustable in relation to the track plate, the mutual respective angular orientation are differently adjustable for different ones of the interconnected bridge elements such that either the track plates or the girders or both approximate arches.
Claim 10
Dependent Claim
49 words
Bridge as in claim 7, each element has two track plates, two girders and an even number of diagonal struts which are respectively linked to the ends of the plates and the center of the girders, further including transverse carriers extending between and being connected to the two plates.
Claim 11
Dependent Claim
26 words
Bridge as in claim 7, said plates having U shaped configuration to receive said girders and said rods when collapsed for purposes of and during transport.
References Cited (Backward Citations)
US879524A
Cited
US4017932A
Cited
DE2926594A1
Cited
US4706436A
Cited
US4635311A
Cited
FR2597129A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-08-26 | 1995-02-25 | 1995-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-08-26 | 1999-02-25 | 1999-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-08-26 | 2003-02-25 | 2003-08-27 | $7700.00 | Window Closed / Lapsed |