US3158352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamped gate valve body
Assignee: Individual
•
Filing: 1961-08-16
•
Granted: 1964-11-24
•
Expires: 1981-08-16
Abstract
No abstract record available.
Inventors
- 👤 Marvin H Grove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:18
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/04; F16K27/044; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A VALVE CONSTRUCTION, A VALVE BODY FORMED OF SEPARATE SIDE PLATE-LIKE PARTS TOGETHER WITH AN INTERMEDIATE PART, SAID PARTS ENCOMPASSING A VALVE BODY SPACE, THE BODY HAVING ALIGNED SIDE OPENINGS FOR CONNECTION WITH ASSOCIATED PIPING, SEALING MEANS BETWEEN THE BODY PARTS, AND C-TYPE CLAMPING DEVICES FOR CLAMPING THE EDGE MARGINS OF THE PLATE-LIKE PARTS TOGETHER UPON THE INTERMEDIATE PART, EACH OF SAID DEVICES COMPRISING METAL END PORTIONS ENGAGING THE EXTERIOR SURFACES OF THE SIDE PLATE-LIKE PARTS ADJACENT THE EDGES THEREOF AND A METAL THROAT PORTION CONNECTING SAID END PORTIONS, THE THROAT PORTION BEING OF SUBSTANTIAL WIDTH IN A DIRECTION EXTENDING OUTWARDLY FROM THE ADJACENT EDGE MARGINS, AN INNER PART ONLY OF SAID THROAT PORTION BEING INTERRUPTED BY A SLOT THAT IS BRIDGED WITH WELD METAL, WHEREBY SAID WELD METAL CARRIES CLAMPING FORCES IN TENSION.
Claim 2
Dependent Claim
135 words
IN A VALVE CONSTRUCTION, A VALVE BODY FORMED OF SEPARATE SIDE PLATE-LIKE PARTS TOGETHER WITH AN INTERMEDIATE PART, SAID PARTS ENCOMPASSING A VALVE BODY SPACE, THE BODY HAVING ALIGNED SIDE OPENINGS FOR CONNECTION WITH ASSOCIATED PIPING, SEALING MEANS BETWEEN THE BODY PARTS, AND C-TYPE CLAMPING DEVICES FOR CLAMPING THE EDGE MARGINS OF THE PLATE-LIKE PARTS TOGETHER UPON THE INTERMEDIATE PART, EACH OF SAID DEVICES COMPRISING METAL END PORTIONS ENGAGING THE EXTERIOR SURFACES OF THE SIDE PLATE-LIKE PARTS ADJACENT THE EDGES THEREOF AND A METAL THROAT PORTION CONNECTING SAID END PORTIONS, THE THROAT PORTION BEING OF SUBSTANTIAL WIDTH IN A DIRECTION EXTENDING OUTWARDLY FROM THE ADJACENT EDGE MARGINS, AN INNER PART ONLY OF SAID THROAT PORTION BEING INTERRUPTED BY A SLOT THAT IS BRIDGED WITH WELD METAL, WHEREBY SAID WELD METAL CARRIES CLAMPING FORCES IN TENSION.
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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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |