US3118470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic valve for pneumatic distribution systems
Assignee: Renault SA
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Filing: 1960-04-25
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Granted: 1964-01-21
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Expires: 1980-04-25
Abstract
No abstract record available.
Inventors
- 👤 Peras Lucien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:02
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/08; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86686; Y10T137/86919
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
ELECTROMAGNETIC VALVE FOR PNEUMATIC DISTRIBUTION SYSTEM COMPRISING A BODY FORMED WITH TWO SEPARATE CAVITIES, AN ELECTROMAGNETIC CASE WITH A CORE MOUNTED IN ONE CAVITY, AN ASSEMBLY CONSTITUTING A THREE-WAY VALVE MOUNTED IN THE OTHER CAVITY AND COMPOSED OF A PLUG MEMBER SLIDING WITHIN CYLINDRICAL BORES AND HAVING A CONICAL BEARING SURFACE, A PAIR OF SEATS WITH WHICH THE BEARING SURFACES COOPERATE, ONE OF THE BEARING SURFACES AND ITS SEAT CONTROLLING THE PASSAGE OF COMPRESSED AIR FROM A FEED LINE TO A LOAD LINE AND THE OTHER BEARING SURFACE AND ITS SEAT CONTROLLING THE PASSAGE OF AIR FROM THE LOAD TO AN EXHAUST, A PUSH MEMBER EXTENDING OUTSIDE OF THE BODY AND CONTROLLING THE MOVEMENT OF THE PLUG MEMBER, SAID PUSH MEMBER HAVING AN OUTER SUPPORTING SURFACE AND AN ACTUATING PLATE ENGAGEABLE WITH THE SUPPORTING SURFACE TO ACTUATE THE PUSH MEMBER, SAID PLATE BEING RESPONSIVE TO THE ACTION OF THE ELECTROMAGNETIC CASE, THE PLUG MEMBER HAVING A BODY IN THE FORM OF A HOLLOW MUSHROOM, SAID PLUG-MEMBER BODY HAVING A CAVITY FACING TOWARDS AN INLET FOR COMPRESSED AIR, SAID PLUG-MEMBER BODY HAVING A STEM, SAID VALVE BODY HAVING A FIRST BORE IN WHICH THE STEM SLIDES, SAID PLUG-MEMBER BODY HAVING A HEAD, THE CIRCUMFERENCE OF WHICH SLIDES WITHIN A SECOND BORE HAVING A LARGER DIAMETER THAN THE FIRST BORE, SAID STEM HAVING
Claim 2
Dependent Claim
221 words
ELECTROMAGNETIC VALVE FOR PNEUMATIC DISTRIBUTION SYSTEM COMPRISING A BODY FORMED WITH TWO SEPARATE CAVITIES, AN ELECTROMAGNETIC CASE WITH A CORE MOUNTED IN ONE CAVITY, AN ASSEMBLY CONSTITUTING A THREE-WAY VALVE MOUNTED IN THE OTHER CAVITY AND COMPOSED OF A PLUG MEMBER SLIDING WITHIN CYLINDRICAL BORES AND HAVING A CONICAL BEARING SURFACE, A PAIR OF SEATS WITH WHICH THE BEARING SURFACES COOPERATE, ONE OF THE BEARING SURFACES AND ITS SEAT CONTROLLING THE PASSAGE OF COMPRESSED AIR FROM A FEED LINE TO A LOAD LINE AND THE OTHER BEARING SURFACE AND ITS SEAT CONTROLLING THE PASSAGE OF AIR FROM THE LOAD TO AN EXHAUST, A PUSH MEMBER EXTENDING OUTSIDE OF THE BODY AND CONTROLLING THE MOVEMENT OF THE PLUG MEMBER, SAID PUSH MEMBER HAVING AN OUTER SUPPORTING SURFACE AND AN ACTUATING PLATE ENGAGEABLE WITH THE SUPPORTING SURFACE TO ACTUATE THE PUSH MEMBER, SAID PLATE BEING RESPONSIVE TO THE ACTION OF THE ELECTROMAGNETIC CASE, THE PLUG MEMBER HAVING A BODY IN THE FORM OF A HOLLOW MUSHROOM, SAID PLUG-MEMBER BODY HAVING A CAVITY FACING TOWARDS AN INLET FOR COMPRESSED AIR, SAID PLUG-MEMBER BODY HAVING A STEM, SAID VALVE BODY HAVING A FIRST BORE IN WHICH THE STEM SLIDES, SAID PLUG-MEMBER BODY HAVING A HEAD, THE CIRCUMFERENCE OF WHICH SLIDES WITHIN A SECOND BORE HAVING A LARGER DIAMETER THAN THE FIRST BORE, SAID STEM HAVING
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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |