Patent US3219055A successfully refreshed from Google Patents.
US3219055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable spacer ring for valve seats
Assignee: MCC Holdings Inc
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Filing: 1962-05-14
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Granted: 1965-11-23
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Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Robert P Dumm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:49
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/06; F16K5/0663; F16K5/0673; F16K5/0678; F16K5/0626; F16K5/0636; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/6031; Y10T137/6035; Y10T137/6038; Y10T137/6041; Y10T137/6154
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN A GLOBE TYPE VALVE, INCLUDING A BODY, A BALL ROTATABLY MOUNTED IN SAID BODY, SAID BODY HAVING AN INTAKE AND AN OUTLET PORT THEREIN, BOTH OF SAID PORTS EXTENDING TO THE BALL, AND SAID BALL HAVING A PASSAGE THERETHROUGH ROTATABLE INTO AND OUT OF REGISTRY WITH SAID PORT, SAID BODY HAVING AN ACCESS OPENING THEREIN ADAPTED TO PASS SAID BALL THERETHROUGH, SAID BODY HAVING A CYLINDRICAL PASSAGEWAY THEREIN POSITIONED ADJACENT THE INTAKE OR OUTLET PORT, A SEAL RING SLIDABLY MOUNTED FOR LIMITED MOVEMENT IN THE CYLINDRICAL PASSAGEWAY RELATIVE TO SAID BALL, A PACKING IN THE SEAL RING SLIDABLY ENGAGING THE BALL IN ONE POSITION OF THE SEAL RING, SPRING MEANS ENGAGING THE SEAL RING AND PRESSING THE THE RING TOWARDS THE BALL, A SPLIT RING MOUNTED IN THE CYLINDRICAL PASSAGEWAY, SAID SPLIT RING ENGAGING THE SEAL RING IN SAID ONE POSITION, A SHOULDER IN THE CYLINDRICAL PASSAGEWAY ENGAGED BY THE SPLIT RING IN SAID ONE POSITION,
Claim 2
Dependent Claim
157 words
IN A GLOBE TYPE VALVE, INCLUDING A BODY, A BALL ROTATABLY MOUNTED IN SAID BODY, SAID BODY HAVING AN INTAKE AND AN OUTLET PORT THEREIN, BOTH OF SAID PORTS EXTENDING TO THE BALL, AND SAID BALL HAVING A PASSAGE THERETHROUGH ROTATABLE INTO AND OUT OF REGISTRY WITH SAID PORT, SAID BODY HAVING AN ACCESS OPENING THEREIN ADAPTED TO PASS SAID BALL THERETHROUGH, SAID BODY HAVING A CYLINDRICAL PASSAGEWAY THEREIN POSITIONED ADJACENT THE INTAKE OR OUTLET PORT, A SEAL RING SLIDABLY MOUNTED FOR LIMITED MOVEMENT IN THE CYLINDRICAL PASSAGEWAY RELATIVE TO SAID BALL, A PACKING IN THE SEAL RING SLIDABLY ENGAGING THE BALL IN ONE POSITION OF THE SEAL RING, SPRING MEANS ENGAGING THE SEAL RING AND PRESSING THE THE RING TOWARDS THE BALL, A SPLIT RING MOUNTED IN THE CYLINDRICAL PASSAGEWAY, SAID SPLIT RING ENGAGING THE SEAL RING IN SAID ONE POSITION, A SHOULDER IN THE CYLINDRICAL PASSAGEWAY ENGAGED BY THE SPLIT RING IN SAID ONE POSITION,
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |