US3870615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sacrificial anode
Assignee: Standard Brass and Manufacturing Co
•
Filing: 1973-10-01
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Granted: 1975-03-11
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Expires: 1993-10-01
Abstract
Abstract The opposite ends of the pipe core of a sacrificial anode are bent 90* through an arc having a relatively short radius, of the order of about four times the diameter of the pipe core.
Inventors
- 👤 Fred V Wilson
- 👤 Sr Henry J Leblanc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:23
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
88 words
A sacrificial anode structure comprising: a. a one-piece pipe core of 4-inch Schedule 80 steel pipe having an elongated straight central section and 90* arcuate sections at each opposite end of said straight section, the radius of curvature of said arcuate sections being about four times the diameter of the pipe core; b. and a body of sacrificial anode material surrounding and supported by the elongated straight central section of said pipe, said central section of said pipe emerging from opposite ends of the body of anode material.
Claim 2
Dependent Claim
88 words
A sacrificial anode structure comprising: a. a one-piece pipe core of 4-inch Schedule 80 steel pipe having an elongated straight central section and 90* arcuate sections at each opposite end of said straight section, the radius of curvature of said arcuate sections being about four times the diameter of the pipe core; b. and a body of sacrificial anode material surrounding and supported by the elongated straight central section of said pipe, said central section of said pipe emerging from opposite ends of the body of anode material.
Claim 3
Dependent Claim
88 words
A sacrificial anode structure comprising: a. a one-piece pipe core of 4-inch Schedule 80 steel pipe having an elongated straight central section and 90* arcuate sections at each opposite end of said straight section, the radius of curvature of said arcuate sections being about four times the diameter of the pipe core; b. and a body of sacrificial anode material surrounding and supported by the elongated straight central section of said pipe, said central section of said pipe emerging from opposite ends of the body of anode material.
Claim 4
Dependent Claim
88 words
A sacrificial anode structure comprising: a. a one-piece pipe core of 4-inch Schedule 80 steel pipe having an elongated straight central section and 90* arcuate sections at each opposite end of said straight section, the radius of curvature of said arcuate sections being about four times the diameter of the pipe core; b. and a body of sacrificial anode material surrounding and supported by the elongated straight central section of said pipe, said central section of said pipe emerging from opposite ends of the body of anode material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |