Pneumatic arrangement for transferring articles
Abstract
Abstract A PNEUMATIC ARRANGEMENT BY WHICH AN ARTICLE IS RAISED THROUGH THE APPLICATION OF A SUCTION FORCE. THE RAISING SUCTION FORCE IS GENERATED THROUGH THE CONTRACTION OF A BELLOWS WHICH EXPELS THE AIR FROM ITS INTERIOR, AND THE SUBSEQUENT EXPANSION OF THE BELLOWS SO AS TO CREATE A PARTIAL VACUUM WITHIN THE INTERIOR. THE BELLOWS IS BROUGHT INTO CONTACT WITH THE ARTICLE TO BE RAISED PRIOR TO THE CONTRACTION AND EXPANSION PROCESS. A SPRING ADJUSTMENT DEVICE PERMITS ADJUSTMENT IN THE SUCTION FORCE SO THAT THE VACUUM WITHIN THE BELLOWS BECOMES NEUTRALIZED WHEN AN ARTICLE HEAVIER THAN A PREDETERMINED WEIGHT ADHERES TO THE BELLOWS. THE VACUUM WITHIN THE BELLOWS IS ALSO GRADUALLY NEUTRALIZED WHEN THE ARTICLE IS TO BE REDEPOSITED AFTER BEING RAISED SO THAT THE DEPOSITING PROCEDURE IS ACCOMPLISHED IN A GRADUAL MANNER FOR THE PURPOSE OF PROTECTING FRAGILE ARTICLES.
Inventors
- 👤 Alfred Netsch
- 👤 Wolfgang Ullrich
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |