Patent US3148701A successfully refreshed from Google Patents.
US3148701A
Expired / Lapsed
US
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Pipe line valve position indicator
Assignee: Texas Pipe Line Co
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Filing: 1962-07-16
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Granted: 1964-09-15
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Expires: 1982-07-16
Abstract
No abstract record available.
Inventors
- 👤 Marshall U Bagwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:24
CPC Classifications
F; F16; F16K; F16K37/00; F16K37/0008; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8225; Y10T137/8275
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A PIPE LINE VALVE POSITION INDICATOR FOR PROVIDING VISUAL INDICATION CLEARLY OBSERVABLE FROM AIRCRAFT AND THE LIKE, COMPRISING A GATE VALVE HAVING AN OPERATOR, SAID OPERATOR BEING TRANSLATED OVER A PREDETERMINED DISTANCE AS SAID GATE MOVES FROM CLOSED TO OPEN POSITION, FLAT MEANS FOR DISPLAYING A SYMBOL ON BOTH SIDES THEREOF HAVING ONE DIMENSION CORRESPONDING TO THE DIRECTION OF SAID OPERATOR TRANSLATION AND AT LEAST SUBSTANTIALLY EQUAL TO SAID PREDETERMINED DISTANCE, MEANS FOR MASKING PART OF SAID SYMBOL ON OPPOSITE SIDES THEREOF WHEN THE GATE IS IN ONE OF ITS TERMINAL POSITIONS, AND MEANS FOR TRANSLATING SAID FLAT MEANS RELATIVE TO SAID MASKING MEANS AS SAID OPERATOR IS TRANSLATED OVER SAID PREDETERMINED DISTANCE WHEREBY SAID SYMBOL IS DISPLAYED UNMASKED WHEN THE VALVE IS IN ONE OF ITS TERMINAL POSITIONS AND MASKED WHEN IN THE OTHER, SAID SYMBOL HAVING A CONFIGURATION SUCH THAT THE UNMASKED CONFIGURATION THEREOF IS DISTINCTLY DIFFERENT FROM THE MASKED CONFIGURATION.
Claim 2
Dependent Claim
153 words
A PIPE LINE VALVE POSITION INDICATOR FOR PROVIDING VISUAL INDICATION CLEARLY OBSERVABLE FROM AIRCRAFT AND THE LIKE, COMPRISING A GATE VALVE HAVING AN OPERATOR, SAID OPERATOR BEING TRANSLATED OVER A PREDETERMINED DISTANCE AS SAID GATE MOVES FROM CLOSED TO OPEN POSITION, FLAT MEANS FOR DISPLAYING A SYMBOL ON BOTH SIDES THEREOF HAVING ONE DIMENSION CORRESPONDING TO THE DIRECTION OF SAID OPERATOR TRANSLATION AND AT LEAST SUBSTANTIALLY EQUAL TO SAID PREDETERMINED DISTANCE, MEANS FOR MASKING PART OF SAID SYMBOL ON OPPOSITE SIDES THEREOF WHEN THE GATE IS IN ONE OF ITS TERMINAL POSITIONS, AND MEANS FOR TRANSLATING SAID FLAT MEANS RELATIVE TO SAID MASKING MEANS AS SAID OPERATOR IS TRANSLATED OVER SAID PREDETERMINED DISTANCE WHEREBY SAID SYMBOL IS DISPLAYED UNMASKED WHEN THE VALVE IS IN ONE OF ITS TERMINAL POSITIONS AND MASKED WHEN IN THE OTHER, SAID SYMBOL HAVING A CONFIGURATION SUCH THAT THE UNMASKED CONFIGURATION THEREOF IS DISTINCTLY DIFFERENT FROM THE MASKED CONFIGURATION.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |