US3209292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for detecting the proximity of metal objects
Assignee: Schneider Electric USA Inc
•
Filing: 1961-12-18
•
Granted: 1965-09-28
•
Expires: 1981-12-18
Abstract
No abstract record available.
Inventors
- 👤 Robert C Montross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:34
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A PROXIMITY DETECTOR TRANSDUCER, THE COMBINATION COMPRISING; A SLEEVE, A SUPPORT CENTRALLY POSITIONED AND IMMOVALLY MOUNTED WITHIN THE SLEEVE, A PAIR OF PHYSICALLY AND MAGNETICALLY IDENTICAL MAGNETIC CORES ADJUSTABLY CONNECTED TO THE SUPPORT AND EQUALLY SPACED ON OPPOSITE SIDES OF THE SUPPORT AND COAXIALY ALINGED WITHIN THESLEEVE AND A PAIR OF IDENTICAL COIL ASSEMBLIES EACH IMMOVABLY POSITIONED BY THE SLEEVE AND SPACED EQUIDISTANTLY ON OPPOSITE SIDES OF THE SUPPORT AND OPPOSITELY ORIENTED WITHIN THE SLEEVE ADJACENT THE OPPOSITE ENDS THEREOF AND EACH COAXIALY DISPOSED BETWEEN ONE OF THE CORES AND INNER SURFACE OF THE SLEEVE.
Claim 2
Dependent Claim
96 words
IN A PROXIMITY DETECTOR TRANSDUCER, THE COMBINATION COMPRISING; A SLEEVE, A SUPPORT CENTRALLY POSITIONED AND IMMOVALLY MOUNTED WITHIN THE SLEEVE, A PAIR OF PHYSICALLY AND MAGNETICALLY IDENTICAL MAGNETIC CORES ADJUSTABLY CONNECTED TO THE SUPPORT AND EQUALLY SPACED ON OPPOSITE SIDES OF THE SUPPORT AND COAXIALY ALINGED WITHIN THESLEEVE AND A PAIR OF IDENTICAL COIL ASSEMBLIES EACH IMMOVABLY POSITIONED BY THE SLEEVE AND SPACED EQUIDISTANTLY ON OPPOSITE SIDES OF THE SUPPORT AND OPPOSITELY ORIENTED WITHIN THE SLEEVE ADJACENT THE OPPOSITE ENDS THEREOF AND EACH COAXIALY DISPOSED BETWEEN ONE OF THE CORES AND INNER SURFACE OF THE SLEEVE.
References Cited (Backward Citations)
USRE18889E
Cited
US1906551A
Cited
US2180413A
Cited
US2315045A
Cited
US2437639A
Cited
US2862192A
Cited
US2915699A
Cited
US2942178A
Cited
US3075144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |