Patent US3605627A successfully refreshed from Google Patents.
US3605627A
Expired / Lapsed
US
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Escort memory for trollery conveyor
Assignee: FMC Corp
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Filing: 1969-07-23
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Granted: 1971-09-20
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Expires: 1989-07-23
Abstract
Abstract A TROLLEY CONVEYOR IS PROVIDED WITH A FLUID OPERATED CODE READING UNIT ADJACENT EACH OF A PLURALITY OF SWITCH GATES ATE MOVABLE TO DIVERT A TROLLEY FROM THE MAIN TRACK TO SPUR TRUCK. EACH TROLLEY CARRIES A DESTINATION CODING OR ESCORT MEMORY UNIT WHICH IS PRESET TO MATCH THE CODE OF ONE OF THE CODE READING UNITS. EACH CODE READIN UNIT HAS ITS OWN FLUIDIC SENSING AND LOGIC CIRCUIT. WHEN THE DESTINATION CODE MATCHES, THE LOGIC CIRCUIT OF THE CODE READING UNIT MOVES THE ADJACENT SWITCH GATE TO DIVERT THE TROLLEY ONTO THE SPUR TRACK.
Inventors
- 👤 Ronald F Homeier
- 👤 William A Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:03
CPC Classifications
B; B61; B61B; B61B10/00; B61B10/001; B61B10/002; B61B10/004
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |