US3404703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bottom loading control system with transient closing and liquid level controls
Assignee: ROBERT D MARX
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Filing: 1964-07-02
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Granted: 1968-10-08
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Expires: 1984-07-02
Abstract
No abstract record available.
Inventors
- 👤 Robert D Marx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:46
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/34; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7297; Y10T137/73; Y10T137/7303; Y10T137/731; Y10T137/7358; Y10T137/7361; Y10T137/7722; Y10T137/7837; Y10T137/785
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A SYSTEM FOR THE BOTTOM LOADING OF A FLUID PRODUCT IN THE TRUCK TANK AND THE LIKE COMPRISING A NORMALLY CLOSED BOTTOM VALVE IN SAID TANK HAVING A PORT OF THE ADMISSION OF SAID PRODUCT INTO SAID TANK, AN DOUBLE-ACTING FLUID CONTROLLED ACUTATOR, LONGITUINALLY INEXTENSIBLE MEANS COUPLING SAID ACTUATOR TO SAID VALVE IN FIXED SPACED RELATION FOR CONTROLLING VALVE OPERATION, FLUID PRESSURE MEANS CONTROLLABLE INDEPENDENTLY OF PRODUCT INPUT PRESSURE COUPLED TO A FIRST INPUT OF SAID ACTUATOR FOR OPENING SAID VALVE AND FLUID PRESSURE TRAMSMITTING MEANS RESPONSIVE TO PRODUCT PRESSURE IN SAID PORT AND COUPLED TO A SECOND INPUT OF SAID ACTUATOR TO FACILITATE VALVE CLOSURE MOVEMENT AGAINST OPPOSING PRODUCT INPUT PRESSURE.
Claim 2
Independent Claim
112 words
A SYSTEM FOR THE BOTTOM LOADING OF A FLUID PRODUCT IN THE TRUCK TANK AND THE LIKE COMPRISING A NORMALLY CLOSED BOTTOM VALVE IN SAID TANK HAVING A PORT OF THE ADMISSION OF SAID PRODUCT INTO SAID TANK, AN DOUBLE-ACTING FLUID CONTROLLED ACUTATOR, LONGITUINALLY INEXTENSIBLE MEANS COUPLING SAID ACTUATOR TO SAID VALVE IN FIXED SPACED RELATION FOR CONTROLLING VALVE OPERATION, FLUID PRESSURE MEANS CONTROLLABLE INDEPENDENTLY OF PRODUCT INPUT PRESSURE COUPLED TO A FIRST INPUT OF SAID ACTUATOR FOR OPENING SAID VALVE AND FLUID PRESSURE TRAMSMITTING MEANS RESPONSIVE TO PRODUCT PRESSURE IN SAID PORT AND COUPLED TO A SECOND INPUT OF SAID ACTUATOR TO FACILITATE VALVE CLOSURE MOVEMENT AGAINST OPPOSING PRODUCT INPUT PRESSURE.
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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |