US3132598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crane interlock mechanism
Assignee: Manning Maxwell and Moore Inc
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Filing: 1953-11-06
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Granted: 1964-05-12
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Expires: 1973-11-06
Abstract
No abstract record available.
Inventors
- 👤 Carl F Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:08
CPC Classifications
B; B66; B66C; B66C7/00; B66C7/12; B66C7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
AN INTERLOCK MECHANISM FOR RELATIVELY MOVABLE CRANE TRACKS COMPRISING A PLUNGER SLIDABLY MOUNTED ON ONE OF SAID TRACKS, A RACK ON SAID PLUNGER, A DRIVING PINION IN MESH WITH SAID RACK, MEANS FOR DRIVING SAID PINION, A GEAR IN MESH WITH SAID PINION DURING A PORTION ONLY OF THE ROTATION THEREOF, A TROLLEY STOP MOUNTED FOR MOVEMENT INTO AND OUT OF TROLLEY-STOPPING POSITION IN RESPONSE TO MOVEMENT OF SAID GEAR, A PLUNGER KEEPER MOUNTED ON THE OTHER OF SAID TRACKS, A SECOND GEAR ON SAID SECOND NAMED TRACK MOUNTED FOR ENGAGEMENT WITH SAID RACK AND FOR ROTATION IN RESPONSE TO THE MOVEMENT THEREOF, AND A TROLLEY STOP ON SAID SECOND TRACK MOUNTED FOR MOVEMENT INTO AND OUT OF TROLLEY-STOPPING POSITION IN RESPONSE TO ROTATION OF SAID SECOND GEAR.
Claim 2
Dependent Claim
128 words
AN INTERLOCK MECHANISM FOR RELATIVELY MOVABLE CRANE TRACKS COMPRISING A PLUNGER SLIDABLY MOUNTED ON ONE OF SAID TRACKS, A RACK ON SAID PLUNGER, A DRIVING PINION IN MESH WITH SAID RACK, MEANS FOR DRIVING SAID PINION, A GEAR IN MESH WITH SAID PINION DURING A PORTION ONLY OF THE ROTATION THEREOF, A TROLLEY STOP MOUNTED FOR MOVEMENT INTO AND OUT OF TROLLEY-STOPPING POSITION IN RESPONSE TO MOVEMENT OF SAID GEAR, A PLUNGER KEEPER MOUNTED ON THE OTHER OF SAID TRACKS, A SECOND GEAR ON SAID SECOND NAMED TRACK MOUNTED FOR ENGAGEMENT WITH SAID RACK AND FOR ROTATION IN RESPONSE TO THE MOVEMENT THEREOF, AND A TROLLEY STOP ON SAID SECOND TRACK MOUNTED FOR MOVEMENT INTO AND OUT OF TROLLEY-STOPPING POSITION IN RESPONSE TO ROTATION OF SAID SECOND GEAR.
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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |