Method and apparatus for lifting freight containers
Abstract
Abstract LIFTING APPARATUS FOR CONTAINERS FOR FREIGHT ADAPTED TO LIFT CONTAINERS OF VARIOUS OVERALL LENGTHS. THE LIFTING APPARATUS IS IN THE GENERAL FORM OF AN OPEN RECTANGULAR SADDLE, GENERALLY CONFORMING TO THE FORMS OF THE CONTAINERS TO BE LIFTED AND MAY BE SUSPENDED FROM A GANTRY AND THE LIKE AND CONTAINS A SERIES OF LATCHES SPACED ALONG APPOSITE SIDES OF THE SADDLE IN SUCH RELATION AS TO HAVE LATCHING ENGAGEMENT WITH KEEPERS CARRIED BY THE CONTAINERS IN THE SAME SPACING AS THE LATCHES. THE KEEPERS ARE MOUNTED ADJACENT THE UPPER ENDS OF THE CONTAINER FOR LIMITED VERTICAL MOVEMENT WITH RESPECT TO THE CONTAINERS AND ARE CONNECTED TO THE CONTAINERS AT THE BOTTOMS OF THE CONTAINERS, TO EXERT LIFTING FORCES ON THE CONTAINERS THROUGH FLEXIBLE CABLES. THE CABLES ARE CONNECTED TO THE KEEPERS AT THEIR FREE ENDS AND HAVE BIGHTS INTERMEDIATE THEIR ENDS EXTENDING ABOUT SHEAVES FIXEDLY SECURED TO THE BOTTOM BEAMS OF THE CONTAINERS. D R A W I N G
Inventors
- 👤 John Bridge
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |