Patent US4376596A successfully refreshed from Google Patents.
US4376596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable roadway
Assignee: Individual
•
Filing: 1980-04-16
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Granted: 1983-03-15
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Expires: 2000-04-16
Abstract
Abstract A plurality of sections of portable roadway are removably interconnected for use during periods of adverse weather conditions during which soil conditions are such that it is impossible to build a permanent road, or when the economics are such that a temporary road is advantageous. Each section consists of a hardwood frame which is connected to and supports a plywood surface. At the front and rear of each section, a transverse stiffening bar extends through and laterally to the side of the section. Connecting members are attached between the free ends of these stiffening bars. In the center of each section, a lifting bar is disposed to aid in removal and placement of the sections in an expeditious manner.
Inventors
- 👤 M. L. Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:55
CPC Classifications
E; E01; E01C; E01C9/00; E01C9/08; E01C9/086
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
214 words
A portable roadway for facilitating vehicular traffic comprising a plurality of sections, each section including: a framework having longitudinal, parallel side members and a pair of transverse forward and rear members connected to said side members; a top panel connected to and overlying said framework in flush peripheral relation; a forward stiffening bar extending transversely between said side members and disposed adjacent and parallel to said forward frame member; a rear stiffening bar extending transversely between said side members and disposed parallel and adjacent to said rear frame member, said forward and rear stiffening bars having free ends extending laterally of said framework; a metal strap pivotally connecting the free ends of the forward and rear stiffening bars of adjacent sections, said laterally extending free ends of the stiffening bars being threaded and having nuts attached thereto disposed against said frame members to apply inward forces to the side frame members, each metal strap including an aperture adjacent one end for pivotal mounting on the free end of one stiffening bar and a downwardly opening notch adjacent the other end for detachable engagement with the free end of a stiffening bar on an adjacent section; and a lifting bar located intermediate said forward and rear stiffening bars and extending transversely between said side members.
Claim 2
Dependent Claim
214 words
A portable roadway for facilitating vehicular traffic comprising a plurality of sections, each section including: a framework having longitudinal, parallel side members and a pair of transverse forward and rear members connected to said side members; a top panel connected to and overlying said framework in flush peripheral relation; a forward stiffening bar extending transversely between said side members and disposed adjacent and parallel to said forward frame member; a rear stiffening bar extending transversely between said side members and disposed parallel and adjacent to said rear frame member, said forward and rear stiffening bars having free ends extending laterally of said framework; a metal strap pivotally connecting the free ends of the forward and rear stiffening bars of adjacent sections, said laterally extending free ends of the stiffening bars being threaded and having nuts attached thereto disposed against said frame members to apply inward forces to the side frame members, each metal strap including an aperture adjacent one end for pivotal mounting on the free end of one stiffening bar and a downwardly opening notch adjacent the other end for detachable engagement with the free end of a stiffening bar on an adjacent section; and a lifting bar located intermediate said forward and rear stiffening bars and extending transversely between said side members.
Claim 3
Dependent Claim
21 words
The invention as defined in claim 1 wherein said lifting bar has recurved ends extending laterally outward of said side members.
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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) | 1986-03-14 | 1986-09-13 | 1987-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-14 | 1990-09-13 | 1991-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-14 | 1994-09-13 | 1995-03-15 | $7700.00 | Window Closed / Lapsed |