US3139285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soft seated globe valve body construction
Assignee: MCC Holdings Inc
•
Filing: 1961-03-20
•
Granted: 1964-06-30
•
Expires: 1981-03-20
Abstract
No abstract record available.
Inventors
- 👤 Robert P Dumm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:53
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/02; F16K27/029; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
136 words
A VALVE OF THE GLOBE TYPE COMPRISING AN ELONGATED BODY, SAID BODY CONSISTING OF A LOWER SECTION, A HEAD REMOVABLY MOUNTED IN THE UPPER END OF THE LOWER SECTION, A PRIMARY PACKING MEANS BETWEEN THE HEAD AND A WALL OF THE LOWER SECTION, A SECONDARY O-RING PACKING MEANS POSITIONED ABOVE THE PRIMARY PACKING MEANS AND ARRANGED BETWEEN THE HEAD AND A WALL OF THE LOWER SECTION, A PACKING GLAND IN THE CENTER OF SAID HEAD, A VALVE STEM EXTENDING THROUGH THE PACKING GLAND, A PISTON RECIPROCALLY MOUNTED IN SAID HEAD, A PISTON ROD DEPENDING FROM THE PISTON AND SECURED TO ONE END OF THE VALVE STEM, SAID PACKING GLAND INCLUDING A LOW TEMPERATURE PACKING THEREIN ENGAGING THE STEM, AND A SECOND O-RING PACKING ABOVE THE LOW TEMPERATURE PACKING, SAID O-RING ALSO SEALING SAID STEM AGAINST LEAKAGE.
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) | 1967-06-30 | 1967-12-30 | 1968-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-30 | 1971-12-30 | 1972-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-30 | 1975-12-30 | 1976-06-30 | $7700.00 | Window Closed / Lapsed |