US4324508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retaining and reinforcement system method and apparatus for earthen formations
Assignee: HILFIKER Inc A CORP OF CA
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Filing: 1980-01-09
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Granted: 1982-04-13
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Expires: 2000-01-09
Abstract
Abstract An earthen formation is reinforced against slippage by embedding welded wire grid work mats within the formation and securing the mats to precast elongate panels disposed at the face of the formation. The mats serve as anchors for the panels, as well as reinforcing means for the formation. Plural connections secure the mats along the length of at least certain of the panels.
Inventors
- 👤 William K. Hilfiker
- 👤 Harold O. Hilfiker
- 👤 William B. Hilfiker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:35
CPC Classifications
E; E02; E02D; E02D29/00; E02D29/02; E02D29/0225; E02D29/0241
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
158 words
A retaining system for an earthen formation, said system comprising: a plurality of elongate precast face panels stacked in generally horizontally disposed relationship to provide a wall, said panels including complementally engageable means to maintain the panels in aligned stacked condition and at least certain of the panels having a recessed shoulder formed in the upper surface thereof and a plurality of pin members extending from the shoulder; anchor mats disposed within the earthen formation behind the stacked face panels, said mats each comprising a plurality of elongate tension rods extending from the panels and a plurality of cross rods welded to and extending transversely of the tension rods in spaced relationship to one another; tension rod extensions on at least certain of said mats extending over and within the confines of the shoulder; and a retention rod carried by the extensions and engaged with the pin members to secure the mats along the length of the panels.
Claim 2
Dependent Claim
158 words
A retaining system for an earthen formation, said system comprising: a plurality of elongate precast face panels stacked in generally horizontally disposed relationship to provide a wall, said panels including complementally engageable means to maintain the panels in aligned stacked condition and at least certain of the panels having a recessed shoulder formed in the upper surface thereof and a plurality of pin members extending from the shoulder; anchor mats disposed within the earthen formation behind the stacked face panels, said mats each comprising a plurality of elongate tension rods extending from the panels and a plurality of cross rods welded to and extending transversely of the tension rods in spaced relationship to one another; tension rod extensions on at least certain of said mats extending over and within the confines of the shoulder; and a retention rod carried by the extensions and engaged with the pin members to secure the mats along the length of the panels.
Claim 3
Dependent Claim
23 words
A retaining system according to claim 1, wherein the pin members extend into engagement with openings provided therefor in opposed stacked face panels.
Claim 4
Dependent Claim
150 words
A retaining system for an earthen formation, said system comprising: a plurality of elongate precast face panels stacked in generally horizontally disposed relationship to provide a wall, said panels including complementally engageable means to maintain the panels in aligned stacked condition and at least certain of the panels having a plurality of pin members extending upwardly therefrom into openings therefor in the panels stacked thereabove; anchor mats disposed within the earthen formation behind the stacked face panels, said mats each comprising a plurality of elongate tension rods extending from the panels and a plurality of cross rods welded to and extending transversely of the tension rods in spaced relationship to one another; tension rod extensions on at least certain of said mats extending over said certain panels; and retention means carried by the extensions and engaged with the pin members to secure the mats along the length of the panels.
Claim 5
Dependent Claim
150 words
A retaining system for an earthen formation, said system comprising: a plurality of elongate precast face panels stacked in generally horizontally disposed relationship to provide a wall, said panels including complementally engageable means to maintain the panels in aligned stacked condition and at least certain of the panels having a plurality of pin members extending upwardly therefrom into openings therefor in the panels stacked thereabove; anchor mats disposed within the earthen formation behind the stacked face panels, said mats each comprising a plurality of elongate tension rods extending from the panels and a plurality of cross rods welded to and extending transversely of the tension rods in spaced relationship to one another; tension rod extensions on at least certain of said mats extending over said certain panels; and retention means carried by the extensions and engaged with the pin members to secure the mats along the length of the panels.
Claim 6
Dependent Claim
38 words
A retaining system according to claim 3, wherein said pins extend from a recessed shoulder formed in the upper surface of said certain panels and said tension rod extensions extend over and within the confines of the shoulder.
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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) | 1985-04-12 | 1985-10-12 | 1986-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-12 | 1989-10-12 | 1990-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-12 | 1993-10-12 | 1994-04-13 | $7700.00 | Window Closed / Lapsed |