US3270893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stacker crane weighing mechanism
Assignee: Harnischfeger Corp
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Filing: 1965-11-10
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Granted: 1966-09-06
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Expires: 1985-11-10
Abstract
No abstract record available.
Inventors
- 👤 Max J Dechantsreiter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:22
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/14; B; B65; B65G; B65G1/00; B65G1/02; B65G1/04; B65G1/0407; B65G1/0421; B66; B66B; B66B5/00; B66B5/02; B66B5/16; B66B5/18; B66B5/20; B66F; B66F9/00; B66F9/06; B66F9/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
AN OVERHEAD TRAVELLING CRANE HAVING A TROLLEY FRAME ADAPTED TO BE DRIVEN ALONG RAILS IN EITHER DIRECTION, A PLURALITY OF LOAD WEIGHING CELLS ON SAID TROLLEY FRAME, A LARGE SUPPORT RING MOUNTED ON SAID CELLS, TURNTABLE ROTATABLY MOUNTED ON SAID RING ON AN ANTI-FRICTION BEARING RING ASSEMBLY, A DOWNWARDLY EXTENDING MAST ASSEMBLY SECURED TO SAID TURNTABLE FOR ROTATION THEREWITH, MEANS TO PREVENT HORIZONTAL MOVEMENT OF THE SUPPORT RING RELATIVE TO THE TROLLEY FRAME TO THEREBY PREVENT SIDE LOADING OF THE LOAD CELLS, AND MEANS TO PREVENT UPWARD MOVEMENT OF SAID SUPPORT RING RELATIVE TO SAID TROLLEY FRAME BEYOND PREDETERMINED LIMITS.
Claim 2
Dependent Claim
100 words
AN OVERHEAD TRAVELLING CRANE HAVING A TROLLEY FRAME ADAPTED TO BE DRIVEN ALONG RAILS IN EITHER DIRECTION, A PLURALITY OF LOAD WEIGHING CELLS ON SAID TROLLEY FRAME, A LARGE SUPPORT RING MOUNTED ON SAID CELLS, TURNTABLE ROTATABLY MOUNTED ON SAID RING ON AN ANTI-FRICTION BEARING RING ASSEMBLY, A DOWNWARDLY EXTENDING MAST ASSEMBLY SECURED TO SAID TURNTABLE FOR ROTATION THEREWITH, MEANS TO PREVENT HORIZONTAL MOVEMENT OF THE SUPPORT RING RELATIVE TO THE TROLLEY FRAME TO THEREBY PREVENT SIDE LOADING OF THE LOAD CELLS, AND MEANS TO PREVENT UPWARD MOVEMENT OF SAID SUPPORT RING RELATIVE TO SAID TROLLEY FRAME BEYOND PREDETERMINED LIMITS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |