Patent US3421990A successfully refreshed from Google Patents.
US3421990A
Expired / Lapsed
US
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Sacrificial anode
Assignee: NANCY ANN PENIX
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Filing: 1966-04-28
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Granted: 1969-01-14
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Expires: 1986-04-28
Abstract
No abstract record available.
Inventors
- 👤 William B Penix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:09
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/18; C23F2213/00; C23F2213/30; C23F2213/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A SACRIFICAL ANODE FOR THE GALVANIC PROTECTION OF CATHODIC METAL OBJECTS IN A FLUID ELECTROLYTE COMPRISING: A REACTIVE MASS; A SUBSTANTIALLY CONTINUOUS SHEATH OF RELATIVELY NONREACTIVE MATERIAL SURROUNDING SAID REACTIVE MASS AND IN FLUID-TIGHT RELATIONSHIP WITH THE OUTER SURFACE THEREOF; AN OPENING IN SAID SHEATH THROUGH WHICH SAID MASS IS EXPOSED TO SAID FLUID ELECTROLYTE; A STRAP OF RELATIVELY NON-REACTIVE MATERIAL LYING ACROSS SAID OPENING IN FLUID-TIGHT RELATIONSHIP WITH THE OUTER SURFACE OF SAID MASS AND CONTIGUOUS WITH THE PORTIONS OF SAID SHEATH LYING ADJACENT OPPOSITE SIDES OF SIDE OPENING; MOUNTING MEANS POSITIONED ON SAID STRAP FOR DETACHABLY MOUNTING SAID ANODE ON SAID CATHODIC METAL OBJECTS AND IN ELECTRICAL CONTACT THEREWITH; AND CONNECTING MEANS CONNECTING SAID MOUNTING MEANS TO THE PORTION OF SAID REACTIVE MASS LYING UNDER SAID STRAP.
Claim 2
Dependent Claim
129 words
A SACRIFICAL ANODE FOR THE GALVANIC PROTECTION OF CATHODIC METAL OBJECTS IN A FLUID ELECTROLYTE COMPRISING: A REACTIVE MASS; A SUBSTANTIALLY CONTINUOUS SHEATH OF RELATIVELY NONREACTIVE MATERIAL SURROUNDING SAID REACTIVE MASS AND IN FLUID-TIGHT RELATIONSHIP WITH THE OUTER SURFACE THEREOF; AN OPENING IN SAID SHEATH THROUGH WHICH SAID MASS IS EXPOSED TO SAID FLUID ELECTROLYTE; A STRAP OF RELATIVELY NON-REACTIVE MATERIAL LYING ACROSS SAID OPENING IN FLUID-TIGHT RELATIONSHIP WITH THE OUTER SURFACE OF SAID MASS AND CONTIGUOUS WITH THE PORTIONS OF SAID SHEATH LYING ADJACENT OPPOSITE SIDES OF SIDE OPENING; MOUNTING MEANS POSITIONED ON SAID STRAP FOR DETACHABLY MOUNTING SAID ANODE ON SAID CATHODIC METAL OBJECTS AND IN ELECTRICAL CONTACT THEREWITH; AND CONNECTING MEANS CONNECTING SAID MOUNTING MEANS TO THE PORTION OF SAID REACTIVE MASS LYING UNDER SAID STRAP.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |