US3580816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making large distillation plants
Assignee: Baldwin Lima Hamilton Corp
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Filing: 1969-10-17
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Granted: 1971-05-25
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Expires: 1989-10-17
Abstract
Abstract THE SHELL OF A MULTI-STAGE DISTILLING PLANT, WHEREIN PREASSEMBLED SECTIONS, EACH CONTAINING A LIKE SERIES OF EVAPORATION STAGES, HAVE MATING OPENINGS IN THEIR RESPECTIVE SIDE WALLS PROVIDING VAPOR COMMUNICATION BETWEEN CORRESPONDING STAGES OF SECTIONS. PERIPHERAL EDGES OF THE OPENINGS IN THE SECTIONS AND ABUTTING EDGES OF INTERNAL PARTITIONS AND REINFORCING MEMBERS OF THE SECTIONS SERVE AS JOINT. THE JOINTED SECTIONS PROVIDE A SINGLE LARGE MULTISTAGE PLANT. THE METHOD INCLUDES STEPS OF FABRICATING THE SECTIONS, ALIGNING THE FABRICATED SECTIONS, AND WELDING THE SECTIONS TOGETHER TO FORM A SINGLE LARGE PLANT.
Inventors
- 👤 Robert A Tidball
- 👤 William M King
- 👤 Dewey R Bosley
- 👤 Charles M Jennings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:43
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |