US3910545A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Form-work with stake mounting means
Assignee: Individual
•
Filing: 1973-09-06
•
Granted: 1975-10-07
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Expires: 1993-09-06
Abstract
Abstract Concrete form-work including an edge beam having a stop flange projecting rearwardly from the beam at each of a plurality of pegging stations, each of which has a peg clearance hole, a starsectioned metal peg, at each station, extending through the clearance hole and a wedge which is driven through the hole to tighten the edge beam against the peg. One of the flanges of the peg is shorter than the other flanges to fit against the rear face of the edge beam and the under face of the stop flange.
Inventors
- 👤 Richard Langford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:25
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/50; E01C19/502; E01C19/504; E02; E02D; E02D27/00; E02D27/01; E04; E04F; E04F15/00; E04F15/12; E04F15/14
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
108 words
Concrete form-work comprising an edge beam having a stop flange projecting rearwardly from the beam at least at each of a plurality of pegging stations, means defining a peg clearance hole at each pegging station through which a peg may extend downwardly, a star-sectioned metal peg having a plurality of flanges, said metal peg at each station extending through said clearance hole and with at least one of its flanges stepped to fit against the rear face of the edge beam and the under face of the stop flange, and a wedge adapted to be driven through said clearance hole to tighten the edge beam against the peg.
Claim 2
Dependent Claim
108 words
Concrete form-work comprising an edge beam having a stop flange projecting rearwardly from the beam at least at each of a plurality of pegging stations, means defining a peg clearance hole at each pegging station through which a peg may extend downwardly, a star-sectioned metal peg having a plurality of flanges, said metal peg at each station extending through said clearance hole and with at least one of its flanges stepped to fit against the rear face of the edge beam and the under face of the stop flange, and a wedge adapted to be driven through said clearance hole to tighten the edge beam against the peg.
Claim 3
Dependent Claim
30 words
The apparatus of claim 1 wherein said star-sectioned metal peg comprises three flanges radiating from a central spine, said peg having included angles between the three flanges of approximately 120*.
Claim 4
Dependent Claim
16 words
The apparatus of claim 2 wherein said one flange is shorter than the other two flanges.
Claim 5
Dependent Claim
16 words
The apparatus of claim 3 wherein the other two flanges protrude upwardly through said clearance hole.
Claim 6
Dependent Claim
22 words
The apparatus of claim 4 wherein said wedge comprises a V-shaped metal sheet, said sheet fitting snugly against said other two flanges.
Claim 7
Dependent Claim
18 words
The apparatus of claim 5 wherein the lower end of the peg is tapered to a single point.
Claim 8
Dependent Claim
20 words
The apparatus of claim 5 wherein the lower end of each of the flanges is tapered to a single point.
Claim 9
Dependent Claim
15 words
The apparatus of claim 6 wherein said stop flange is integral with said edge beam.
Claim 10
Dependent Claim
30 words
The apparatus of claim 6 wherein said stop flange comprises one flange of a rolled steel angle, the other flange of the angle overlying a face of the edge beam.
Claim 11
Dependent Claim
109 words
Concrete form-work comprising an edge beam having a stop flange projecting rearwardly from the beam at least at each of a plurality of pegging stations, means defining a peg clearance hole at each pegging station through which a peg may extend downwardly, a star-sectioned metal peg having a plurality of flanges and a flag connected to one of the plurality of flanges, said metal peg at each station extending through said clearance hole and with said flag fitted against the rear face of the edge beam and the under face of the stop flange, and a wedge within said clearance hole to tighten the edge beam against the peg.
Claim 12
Dependent Claim
109 words
Concrete form-work comprising an edge beam having a stop flange projecting rearwardly from the beam at least at each of a plurality of pegging stations, means defining a peg clearance hole at each pegging station through which a peg may extend downwardly, a star-sectioned metal peg having a plurality of flanges and a flag connected to one of the plurality of flanges, said metal peg at each station extending through said clearance hole and with said flag fitted against the rear face of the edge beam and the under face of the stop flange, and a wedge within said clearance hole to tighten the edge beam against the peg.
References Cited (Backward Citations)
US1987589A
Cited
US2180842A
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US2835017A
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US2875500A
Cited
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US2917803A
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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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |