US4096051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular anode for cathodic protection
Assignee: Corrpro Companies Inc
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Filing: 1974-04-18
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Granted: 1978-06-20
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Expires: 1994-04-18
Abstract
Abstract Sacrificial tubular anode structures having a generally centrally located connection. This design gives a uniform metal consumption pattern, thus protecting the electrical connection from premature failure, preventing anode separation due to concentrated metal consumption, and reducing the tendency for gas blocking.
Inventors
- 👤 Russell K. Annis, Jr.
- 👤 John W. McKinney, Jr.
- 👤 Robert C. Schenck, Jr.
- 👤 Delvin P. Sims
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:57
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
93 words
A tubular anode comprising a hollow straight-walled tubular anode body having solid walls of uniform thickness and having an open cylindrical interior, an electrical contact means located inwardly from the ends and within said interior of said tubular body, plastic seal means located on each side of said contact means, and an electrical conductor including an electrically insulating outer sheath, said conductor being connected to said electrical contact means and passing through one of said plastic seal means in a sealing relationship so that the seal means maintain an encapsulated anode-to-conductor electrical connection.
Claim 2
Dependent Claim
93 words
A tubular anode comprising a hollow straight-walled tubular anode body having solid walls of uniform thickness and having an open cylindrical interior, an electrical contact means located inwardly from the ends and within said interior of said tubular body, plastic seal means located on each side of said contact means, and an electrical conductor including an electrically insulating outer sheath, said conductor being connected to said electrical contact means and passing through one of said plastic seal means in a sealing relationship so that the seal means maintain an encapsulated anode-to-conductor electrical connection.
Claim 3
Dependent Claim
25 words
A tubular anode as in claim 1 further including a guide means at the end of said tubular body through which said electrical conductor passes.
Claim 4
Dependent Claim
14 words
A tubular anode as in claim 2 wherein said guide means is a disc.
Claim 5
Dependent Claim
16 words
A tubular anode as in claim 1 wherein said tubular body is of high silicon iron.
Claim 6
Dependent Claim
24 words
A tubular anode as in claim 1 wherein said plastic seal means is a combination of an electrical potting compound and epoxy resin caps.
Claim 7
Dependent Claim
16 words
A tubular anode as in claim 1 wherein said contact means is a cast lead material.
Claim 8
Dependent Claim
57 words
A tubular anode as in claim 6 wherein said tubular body is of high silicon chromium iron, said contact means is generally centrally located, said seal means is an electrical potting compound enclosed by epoxy resin caps, and further including guide means at one end of said tubular body, said electrical conductor passing through said guide means.
Claim 9
Dependent Claim
24 words
A tubular anode as in claim 1 wherein said contact means is wedged into said anode body to form a secure, low resistance connection.
References Cited (Backward Citations)
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US3043765A
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US3098027A
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US3326791A
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US3317415A
Cited
GB1153172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |