US4047256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bridge construction method
Assignee: Individual
•
Filing: 1976-11-11
•
Granted: 1977-09-13
•
Expires: 1996-11-11
Abstract
Abstract A bridge construction method comprising removing the trucks and wheels from a flatbed type railroad car to provide a bridge substructure, preparing support means upstanding from an area to be bridged for emplacement of the substructure, and emplacing the substructure on the support means over the area.
Inventors
- 👤 Bernard Hasara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:39
CPC Classifications
E; E01; E01D; E01D2/00; E01D2101/00; E01D2101/30
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
47 words
A bridge construction method comprising: removing the trucks and wheels from a flatbed type railroad car to provide a bridge substructure, preparing support means upstanding from an area to be bridged for emplacement of said substructure, and emplacing said substructure on said support means over said area.
Claim 2
Dependent Claim
47 words
A bridge construction method comprising: removing the trucks and wheels from a flatbed type railroad car to provide a bridge substructure, preparing support means upstanding from an area to be bridged for emplacement of said substructure, and emplacing said substructure on said support means over said area.
Claim 3
Dependent Claim
33 words
The method of claim 1 comprising preparing two such support means on opposite sides of said area and employing said substructure with each end disposed on a respective one of said support means.
Claim 4
Dependent Claim
22 words
The method of claim 1 wherein said preparation of said two support means comprises forming pillars on opposite sides of said area.
Claim 5
Dependent Claim
24 words
The method of claim 3 wherein said area is a depression and said pillars are positioned within embankments on opposite sides of said depression.
Claim 6
Dependent Claim
14 words
The method of claim 1 comprising emplacing a bridge deck structure on said substructure.
Claim 7
Dependent Claim
24 words
The method of claim 5 wherein said emplacement of said bridge deck structure is preceded by removing a car deck structure from said car.
Claim 8
Dependent Claim
21 words
The method of claim 5 wherein said emplacement of said bridge deck structure comprises overlying said substructure with metal plate means.
Claim 9
Dependent Claim
24 words
The method of claim 7 wherein said emplacement of said bridge deck structure further comprises pouring road construction material over said metal plate means.
Claim 10
Dependent Claim
24 words
The method of claim 5 wherein said bridge deck structure is emplaced so as to extend laterally beyond the side edges of said substructure.
Claim 11
Dependent Claim
22 words
The method of claim 9 comprising securing bracing members between said substructure and the laterally extending part of said bridge deck structure.
Claim 12
Dependent Claim
31 words
The method of claim 5 comprising emplacing two such substructure on said support means laterally adjacent each other and emplacing said bridge deck structure to extend across both of said substructures.
Claim 13
Dependent Claim
27 words
The method of claim 11 comprising laterally spacing said substructures from each other and emplacing said bridge deck structure to extend across the space between said substructures.
Claim 14
Dependent Claim
24 words
The method of claim 12 comprising securing bracing members between said substructures and the part of said bridge deck structure extending across said space.
Claim 15
Dependent Claim
32 words
The method of claim 13 including securing first ones of said bracing members between said substructures and securing second ones of said bracing members between said substructures and said first bracing members.
Claim 16
Dependent Claim
21 words
The method of claim 5 including the further step of securing guard rails along the sides of said bridge deck structure.
Claim 17
Dependent Claim
18 words
The method of claim 1 comprising emplacing two such substructures on said support means longitudinally adjacent each other.
Claim 18
Dependent Claim
61 words
The method of claim 16 comprising providing two such support means on opposite sides of said area and a third such support means within said area and emplacing each of said substructures with one end on a respective one of said two support means with the other ends of both of said substructures adjacent each other on said third support means.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |