US2726205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anode deterioration indicator for water heaters
Assignee: DEARBORN STOVE Co
•
Filing: 1952-09-02
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Granted: 1955-12-06
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Expires: 1972-09-02
Abstract
No abstract record available.
Inventors
- 👤 William A Marshall
- 👤 Erwin S Kleinmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:49
CPC Classifications
F; F24; F24H; F24H1/00; F24H1/10; F24H1/101; F24H1/106; F24H9/00; F24H9/40; F24H9/45; F24H9/455
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN COMBINATION WITH AN ANODE IMMERSED IN LIQUID IN A TANK FOR PREVENTING CORROSION OF SAID TANK, AN AUTOMATICALLY ACTUATED DEVICE FOR INDICATING THE DEGREE OF CONSUMPTION OF SAID ANODE COMPRISING A FITTING CONNECTED TO SAID TANK, A PLUNGER MOVABLY MOUNTED IN SAID FITTING, SAID ANODE BEING SOLELY SUPPORTED BY SAID PLUNGER AND DISPOSED IN SAID TANK AND MEANS IMPOSING AN OUTWARD BIASING FORCE ON SAID PLUNGER LESS THAN THE SUBMERGED WEIGHT OF SAID ANODE WHEREBY SAID PLUNGER MOVES OUTWARDLY AS THE WEIGHT OF SAID ANODE DECREASES.
Claim 2
Dependent Claim
87 words
IN COMBINATION WITH AN ANODE IMMERSED IN LIQUID IN A TANK FOR PREVENTING CORROSION OF SAID TANK, AN AUTOMATICALLY ACTUATED DEVICE FOR INDICATING THE DEGREE OF CONSUMPTION OF SAID ANODE COMPRISING A FITTING CONNECTED TO SAID TANK, A PLUNGER MOVABLY MOUNTED IN SAID FITTING, SAID ANODE BEING SOLELY SUPPORTED BY SAID PLUNGER AND DISPOSED IN SAID TANK AND MEANS IMPOSING AN OUTWARD BIASING FORCE ON SAID PLUNGER LESS THAN THE SUBMERGED WEIGHT OF SAID ANODE WHEREBY SAID PLUNGER MOVES OUTWARDLY AS THE WEIGHT OF SAID ANODE DECREASES.
References Cited (Backward Citations)
US1020480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |