Patent US3911975A successfully refreshed from Google Patents.
US3911975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for loading tank cars
Assignee: Shell USA Inc
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Filing: 1974-03-28
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Granted: 1975-10-14
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Expires: 1994-03-28
Abstract
Abstract There is disclosed a device for loading tank cars which includes a vertically movable carrier for a loading pipe with the carrier supported by a trolly system movable horizontally in two directions perpendicular to each other with the carrier for the loading pipe being provided with means to regulate the pressure of the carrier against the loading port of the tank car, means for locking the carrier pipe, means for sensing the liquid level in the tank car, means for stopping the flow of liquid when a predetermined level is reached and means for carrying vapors exhausted from the tank car away to a vapor recovery system.
Inventors
- 👤 Soestbergen Hans Van
- 👤 Toor Pieter Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:17
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/005
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
An apparatus comprising a support; carrier means for receiving and suspending a loading means; alignment means connected to the support for aligning the carrier means horizontally over the inlet of a tank car to be loaded, the alignment means being connected to the carrier means through vertically expandable and contractable linking means; actuating means for regulating the expansion and contraction of the linking means; contacting means connected to the carrier means for achieving contact with the inlet of a tank car to be loaded, the contacting means including sensing means responsive to changes in contact pressure between the contacting means and a tank car being loaded, said sensing means cooperating with said actuating means to regulate the vertical motion of the linking means.
Claim 2
Independent Claim
123 words
An apparatus comprising a support; carrier means for receiving and suspending a loading means; alignment means connected to the support for aligning the carrier means horizontally over the inlet of a tank car to be loaded, the alignment means being connected to the carrier means through vertically expandable and contractable linking means; actuating means for regulating the expansion and contraction of the linking means; contacting means connected to the carrier means for achieving contact with the inlet of a tank car to be loaded, the contacting means including sensing means responsive to changes in contact pressure between the contacting means and a tank car being loaded, said sensing means cooperating with said actuating means to regulate the vertical motion of the linking means.
Claim 3
Independent Claim
188 words
An apparatus for loading a tank car with liquid comprising a support; carrier means for receiving and suspending a loading means; alignment means connected to the support for aligning the carrier means horizontally over the inlet of a tank car to be loaded, the alignment means being connected to the carrier means through vertically expandable and contractable linking means; actuating means for regulating the expansion and contraction of the linking means; contacting means connected to the carrier means for achieving contact with the inlet of a tank car to be loaded, the contacting means including sensing means responsive to changes in contact pressure between the contacting means and a tank car being loaded, said sensing means cooperating with said actuating means to regulate the vertical motion of the linking means; loading means, disposed with the carrier means, for feeding liquid to a tank car; liquid level sensing means, disposed with said carrier means, for sensing the level of liquid in a tank car being loaded; means cooperating with the liquid level sensing means to regulate the amount of liquid fed through the loading means to a tank car.
Claim 4
Independent Claim
188 words
An apparatus for loading a tank car with liquid comprising a support; carrier means for receiving and suspending a loading means; alignment means connected to the support for aligning the carrier means horizontally over the inlet of a tank car to be loaded, the alignment means being connected to the carrier means through vertically expandable and contractable linking means; actuating means for regulating the expansion and contraction of the linking means; contacting means connected to the carrier means for achieving contact with the inlet of a tank car to be loaded, the contacting means including sensing means responsive to changes in contact pressure between the contacting means and a tank car being loaded, said sensing means cooperating with said actuating means to regulate the vertical motion of the linking means; loading means, disposed with the carrier means, for feeding liquid to a tank car; liquid level sensing means, disposed with said carrier means, for sensing the level of liquid in a tank car being loaded; means cooperating with the liquid level sensing means to regulate the amount of liquid fed through the loading means to a tank car.
Claim 5
Dependent Claim
13 words
The apparatus of claim 2 wherein the carrier means comprises a suction cap.
Claim 6
Dependent Claim
28 words
The apparatus of claim 3 wherein the contacting means comprises a contacting ring communicating with the suction cap and the inlet of a tank car to be loaded.
References Cited (Backward Citations)
US3753453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |