Patent US6294953B1 successfully refreshed from Google Patents.
US4703255A
Expired / Lapsed
US
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Probe for corrosion testing
Assignee: Individual
•
Filing: 1985-09-04
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Granted: 1987-10-27
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Expires: 2005-09-04
Abstract
Abstract A probe for testing for a corrosive environment in a concrete body by measuring the current and the voltage between two metallic elements of different materials, one of which being of a material similar to that of the reinforcement members to be provided in the concrete body. The two elements are rods arranged with holding means to maintain the elements in a parallel relationship when preparing the concrete in situ.
Inventors
- 👤 Roe Strommen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:38
CPC Classifications
G; G01; G01N; G01N17/00; G01N17/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
102 words
Probe for corrosion testing in a concrete structure, comprising a pair of metallic elements of different materials, of which one is of a material similar to that of a reinforcement steel to be embedded in the concrete structure, characterized in that the metallic probe elements are of an elongated shape, the probe further comprising at least two holding means of an electrically nonconducting material, being provided to engage with said elements at different locations along the probe to maintain them in a predetermined mutual distance during the mounting in situ of the probe and the filling with concrete in a nonhardened state.
Claim 2
Dependent Claim
102 words
Probe for corrosion testing in a concrete structure, comprising a pair of metallic elements of different materials, of which one is of a material similar to that of a reinforcement steel to be embedded in the concrete structure, characterized in that the metallic probe elements are of an elongated shape, the probe further comprising at least two holding means of an electrically nonconducting material, being provided to engage with said elements at different locations along the probe to maintain them in a predetermined mutual distance during the mounting in situ of the probe and the filling with concrete in a nonhardened state.
Claim 3
Dependent Claim
21 words
Probe according to claim 1, characterized in that the metallic elements are solid metallic rods, of a length exceeding 500 mm.
Claim 4
Dependent Claim
18 words
Probe according to claim 1, characterized in that one other of the probe elements is made of copper.
Claim 5
Dependent Claim
18 words
Probe according to claim 1, characterized in that at least one of the probe elements is a plate.
References Cited (Backward Citations)
US3209249A
Cited
GB1430214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |