Patent US3420260A successfully refreshed from Google Patents.
US3420260A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid valve with integral plastic bobbin and seat
Assignee: Trane US Inc
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Filing: 1966-12-02
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Granted: 1969-01-07
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Expires: 1986-12-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Wisniewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:10
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0655; F16K31/0651; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/5987
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A SOLENOID VALVE COMPRISING A MOLDED PLASTIC BOBBIN HAVING A HOLLOW TUBULAR CENTRAL PORTIION AND INTEGRAL OUTWARDLY RADIATING END FLANGES; AN ELECTRICAL WINDING SURROUNDING THE BONBBIN TUBULAR PORTION IN THE SPACE BETWEEN THE END FLANGES; SAID TUBULAR PORTIION OF THE BOBBIN HAVING AN INTERNAL SHOULDER FORMED INTEGRALLY THEREWITH, SAID SHOULDER CONSISTING A VALVE SEAT FOR CONTROLLING FLUID FLOWINGG THROUGH THE BOBBIN TUBULAR PORTION; AN ARMATURE FLOATABLY DISPOSED WITHIN THE BOBBIN FOR MOVEMENT TOWARD AND AWAY FROM THE VALVE SEAT; A SPRING WITHIN THE BOBBIN BIASING THE ARMATURE IN ONE DIRECTION; AND A MAGNETIC FIELD MEANS OPERABLE IN CONJUNCTION WITH THE ELECTRICAL WINDING TO BIAS THE PLUNGER IN THE OTHER DIRECTION.
Claim 2
Dependent Claim
110 words
A SOLENOID VALVE COMPRISING A MOLDED PLASTIC BOBBIN HAVING A HOLLOW TUBULAR CENTRAL PORTIION AND INTEGRAL OUTWARDLY RADIATING END FLANGES; AN ELECTRICAL WINDING SURROUNDING THE BONBBIN TUBULAR PORTION IN THE SPACE BETWEEN THE END FLANGES; SAID TUBULAR PORTIION OF THE BOBBIN HAVING AN INTERNAL SHOULDER FORMED INTEGRALLY THEREWITH, SAID SHOULDER CONSISTING A VALVE SEAT FOR CONTROLLING FLUID FLOWINGG THROUGH THE BOBBIN TUBULAR PORTION; AN ARMATURE FLOATABLY DISPOSED WITHIN THE BOBBIN FOR MOVEMENT TOWARD AND AWAY FROM THE VALVE SEAT; A SPRING WITHIN THE BOBBIN BIASING THE ARMATURE IN ONE DIRECTION; AND A MAGNETIC FIELD MEANS OPERABLE IN CONJUNCTION WITH THE ELECTRICAL WINDING TO BIAS THE PLUNGER IN THE OTHER DIRECTION.
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) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |