Patent US4195809A successfully refreshed from Google Patents.
US4195809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screed bar support stake and method
Assignee: Amida Industries Inc
•
Filing: 1978-08-23
•
Granted: 1980-04-01
•
Expires: 1998-08-23
Abstract
Abstract A screed bar support stake and method are uniquely adapted to concrete screeding operations utilizing a vibratory-type screed. The stake is formed with means which allow it to be located after the concrete has been poured and is also adapted with means enabling the stake to be removed for reuse before the concrete hardens thus saving the cost of the stake. A mating drive member facilitates easy placement of the stake.
Inventors
- 👤 Donald R. Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:20
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/02; E04F21/04; E04F21/05; E01; E01C; E01C23/00; E01C23/01; E04G; E04G21/00; E04G21/02; E04G21/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
89 words
A screed bar support stake comprising: a formed metal stake having a pointed lower end, retention means at the upper end for supporting and retaining a screed bar thereon, an elongated flexible member extending vertically upwardly from said upper end and having an outer end portion terminating at a distance sufficiently remote from said upper end such that when said stake and a screed bar supported thereon are embedded in concrete the outer end of said flexible member provides a means protruding above said concrete for locating said stake.
Claim 2
Dependent Claim
89 words
A screed bar support stake comprising: a formed metal stake having a pointed lower end, retention means at the upper end for supporting and retaining a screed bar thereon, an elongated flexible member extending vertically upwardly from said upper end and having an outer end portion terminating at a distance sufficiently remote from said upper end such that when said stake and a screed bar supported thereon are embedded in concrete the outer end of said flexible member provides a means protruding above said concrete for locating said stake.
Claim 3
Dependent Claim
33 words
A screed bar support stake according to claim 1 wherein said flexible member comprises a metal wire member having a straight upper portion and a coiled lower portion mounted on said upper end.
Claim 4
Dependent Claim
31 words
A screed bar support stake as claimed in claim 1 including grasping means formed on said stake enabling a withdrawal tool to be engaged thereto to remove said stake for reuse.
Claim 5
Dependent Claim
35 words
A screed bar support stake according to claim 3 wherein said stake includes a body portion of a metal angle strip and said grasping means consists of an aperture formed in the upper portion thereof.
Claim 6
Dependent Claim
31 words
A screed bar support stake according to claim 4 wherein said retention means consists of a pair of rigid rod members secured at the upper end portion of said metal stake.
References Cited (Backward Citations)
US1910247A
Cited
US2031396A
Cited
US2154966A
Cited
US2867041A
Cited
US3390500A
Cited
US4030873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-01 | 1983-10-01 | 1984-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-01 | 1987-10-01 | 1988-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-01 | 1991-10-01 | 1992-04-01 | $7700.00 | Window Closed / Lapsed |