US3073456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism for swingable booms
Assignee: Individual
•
Filing: 1960-05-27
•
Granted: 1963-01-15
•
Expires: 1980-05-27
Abstract
No abstract record available.
Inventors
- 👤 Ernest E Hajek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:21
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/20; B66C23/201; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18416; Y10T74/18456
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A SLEWING DRIVE DEVICE FOR ARTICLE HANDLING APPARATUS, THE COMBINATION OF A PLURALITY OF PIVOTALLY MOUNTED AND SPACED MASTS; JIB ARMS, FROM WHICH ARTICLES CAN BE SUSPENDED, SECURED TO EACH OF SAID MASTS; DIFFERENTIALLY DISPOSED LEVER MEANS AND LINK MEANS COUPLING SAID MASTS TOGETHER; AND MEANS FOR ACTUATING SAID LEVER AND LINK MEANS TO EFFECT A SIMULTANEOUS MOVEMENT OF ALL OF SAID MASTS AND JIB ARMS IN THE SAME DIRECTION WITHOUT INTERFERING WITH EACH OTHER, WHEREBY ONE OF SAID JIB ARMS AND THE ARTICLE SUSPENDED THEREFROM WILL BE MOVED TO A PREDETERMINED POSITION WHILE ANOTHER JIB ARM AND THE ARTICLE SUSPENDED THEREFROM WILL BE MOVED TO ANOTHER PREDETERMINED POSITION.
Claim 2
Dependent Claim
110 words
IN A SLEWING DRIVE DEVICE FOR ARTICLE HANDLING APPARATUS, THE COMBINATION OF A PLURALITY OF PIVOTALLY MOUNTED AND SPACED MASTS; JIB ARMS, FROM WHICH ARTICLES CAN BE SUSPENDED, SECURED TO EACH OF SAID MASTS; DIFFERENTIALLY DISPOSED LEVER MEANS AND LINK MEANS COUPLING SAID MASTS TOGETHER; AND MEANS FOR ACTUATING SAID LEVER AND LINK MEANS TO EFFECT A SIMULTANEOUS MOVEMENT OF ALL OF SAID MASTS AND JIB ARMS IN THE SAME DIRECTION WITHOUT INTERFERING WITH EACH OTHER, WHEREBY ONE OF SAID JIB ARMS AND THE ARTICLE SUSPENDED THEREFROM WILL BE MOVED TO A PREDETERMINED POSITION WHILE ANOTHER JIB ARM AND THE ARTICLE SUSPENDED THEREFROM WILL BE MOVED TO ANOTHER PREDETERMINED POSITION.
References Cited (Backward Citations)
US1287057A
Cited
US2859882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |