US3616422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Galvanic anode
Assignee: Cathodic Protection Services Inc
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Filing: 1969-04-21
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Granted: 1971-10-26
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Expires: 1989-04-21
Abstract
Abstract A galvanic anode adapted particularly for the cathodic protection of relatively large diameter pipelines submerged in water bodies. The anode consists of a pair of semicylindrical segments constructed of a suitable galvanic metal and having completely embedded within the galvanic metal steel core or armature sections, adapted to be connected together to join the anode sections into a ''''bracelet'''' about the pipe.
Inventors
- 👤 Gordon L Doremus
- 👤 Jack G Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:16
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
25 words
An anode according to claim 1 wherein said anode metal is a member selected from the group consisting of aluminum, zinc, magnesium, and alloys thereof.
Claim 2
Dependent Claim
22 words
a metal core cathodic to the anode metal concentrically embedded entirely within the anode metal adjacent the inner periphery of said body;
Claim 3
Dependent Claim
56 words
said core comprising: a. at least two axially spaced parallel metal bars; b. a plurality of angularly spaced metal rods interlinking said bars; c. each of said bars having end portions projecting from opposite longitudinal edges of the anode body to form joint elements for connecting one of said segments to the other in pipe-embracing relation.
Claim 4
Dependent Claim
14 words
An anode acCording to claim 1 wherein said core is constructed of mild steel.
Claim 5
Dependent Claim
23 words
An anode according to claim 1 including electric current conductor elements connected to said core for electrically connecting the core to the pipeline.
Claim 6
Dependent Claim
30 words
An anode according to claim 1 wherein one of said end portions is offset laterally to receive the non-offset end portion of an opposed bar to form the joint therebetween.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |