US3353786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate valve body including thin dished plates
Assignee: Grove Valve and Regulator Co
•
Filing: 1965-09-03
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Granted: 1967-11-21
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Expires: 1985-09-03
Abstract
No abstract record available.
Inventors
- 👤 Marvin G Combes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:59
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/04; F16K27/044; F16K27/10; F16K27/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A VALVE STRUCTURE COMPRISING: A FIRST BODY SECTION HAVING OPPOSING END WALLS OF RELATIVELY THICK MATERIAL WITH FLOW OPENINGS THERETHROUGH, A SECOND BODY SECTION HAVING OPPOSING END WALLS OF THIN MATERIAL WHICH ARE DISHED OUTWARD FORMING CONCAVE, GENERALLY SPHERICAL, INNER SURFACES, AND A BODY BAND SECURED BETWEEN THE EDGES OF SAID THIN END WALLS, SAID BODY BAND BEING A CHANNEL MEMBER, SAID THIN END WALLS BEING WELDED AROUND THEIR PERIPHERIES TO THE LEGS OF SAID CHANNEL MEMBER, COMPLEMENTARY MEANS SECURING SAID BODY SECTIONS TOGETHER TO FORM A COMPLETE VALVE BODY ENCLOSURE.
Claim 2
Dependent Claim
91 words
A VALVE STRUCTURE COMPRISING: A FIRST BODY SECTION HAVING OPPOSING END WALLS OF RELATIVELY THICK MATERIAL WITH FLOW OPENINGS THERETHROUGH, A SECOND BODY SECTION HAVING OPPOSING END WALLS OF THIN MATERIAL WHICH ARE DISHED OUTWARD FORMING CONCAVE, GENERALLY SPHERICAL, INNER SURFACES, AND A BODY BAND SECURED BETWEEN THE EDGES OF SAID THIN END WALLS, SAID BODY BAND BEING A CHANNEL MEMBER, SAID THIN END WALLS BEING WELDED AROUND THEIR PERIPHERIES TO THE LEGS OF SAID CHANNEL MEMBER, COMPLEMENTARY MEANS SECURING SAID BODY SECTIONS TOGETHER TO FORM A COMPLETE VALVE BODY ENCLOSURE.
References Cited (Backward Citations)
US685438A
Cited
GB417512A
Cited
US2683581A
Cited
DE1002580B
Cited
FR1171258A
Cited
US3052963A
Cited
US3176956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |