US3282287A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic valve lubricating device
Assignee: Rockwell Manufacturing Co
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Filing: 1963-08-09
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Granted: 1966-11-01
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Expires: 1983-08-09
Abstract
No abstract record available.
Inventors
- 👤 Herman H Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:15
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/02; F15B15/06; F15B15/065; F16; F16K; F16K31/00; F16K31/12; F16K31/16; F16K31/163; F16K31/1635; F16K5/00; F16K5/08; F16K5/22; F16K5/227; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4379; Y10T137/4386; Y10T137/4442
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
AN APPARATUS FOR EFFECTING AUTOMATIC LUBRICATION OF A PLUG VALVE OF THE TYPE WHEREIN A PLUG IS MOUNTED ON A SEATING SURFACE IN A VALVE BODY FOR ROTATION BETWEEN ANGULARLY SPACED APART FULLY VALVE CLOSED AND OPENED POSITIONS WHERE IT BLOCKS AND PROVIDES FOR FLUID FLOW THROUGH SAID BODY, SAID APPARATUS COMPRISING (A) MEANS FOR SUPPLYING PRESSURIZED LUBRICANT TO SAID SEATING SURFACE, AND (B) MEANS RESPONDING TO ROTATION OF SAID PLUG TO BLOCK THE SUPPLY OF LUBRICANT TO SAID SEATING SURFACE DURING MOVEMENT OF SAID PLUG BETWEEN A PREDETERMINED INTERMEDIATE POSITION AND SAID OPENED POSITION, SAID INTERMEDIATE POSITION BEING LOCATED ANGULARLY BETWEEN SAID FULLY CLOSED AND OPENED POSITIONS.
Claim 2
Independent Claim
108 words
AN APPARATUS FOR EFFECTING AUTOMATIC LUBRICATION OF A PLUG VALVE OF THE TYPE WHEREIN A PLUG IS MOUNTED ON A SEATING SURFACE IN A VALVE BODY FOR ROTATION BETWEEN ANGULARLY SPACED APART FULLY VALVE CLOSED AND OPENED POSITIONS WHERE IT BLOCKS AND PROVIDES FOR FLUID FLOW THROUGH SAID BODY, SAID APPARATUS COMPRISING (A) MEANS FOR SUPPLYING PRESSURIZED LUBRICANT TO SAID SEATING SURFACE, AND (B) MEANS RESPONDING TO ROTATION OF SAID PLUG TO BLOCK THE SUPPLY OF LUBRICANT TO SAID SEATING SURFACE DURING MOVEMENT OF SAID PLUG BETWEEN A PREDETERMINED INTERMEDIATE POSITION AND SAID OPENED POSITION, SAID INTERMEDIATE POSITION BEING LOCATED ANGULARLY BETWEEN SAID FULLY CLOSED AND OPENED POSITIONS.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |