Claims
- 1. A pendant responsive crane control system, comprising:a swinging link between a rotary hoist for lifting a load and a crane drive for moving said hoist; lateral movement sensors that generate signals in response to lateral movement of said swinging link; and crane control means directing lateral movement of said crane drive in response to the signals generated by said sensors.
- 2. A pendant responsive crane control system as set forth in claim 1, wherein said swinging link depends from said crane drive.
- 3. A pendant responsive crane control system as set forth in claim 1, wherein said swinging link depends from said crane drive by a universal joint.
- 4. A pendant responsive crane control system as set forth in claim 1, wherein said sensors generate signals indicating direction of lateral movement.
- 5. A pendant responsive crane control system as set forth in claim 1, wherein said sensors generate signals indicating the direction and magnitude of lateral movement.
- 6. A pendant responsive crane control system comprising:a swinging link between a hoist for lifting a load and a crane drive for moving said hoist; lateral movement sensors that generate signals in response to lateral movement of said swinging link; crane control means directing lateral movement of said crane drive in response to the signals generated by said sensors; and a load sensor that generates load signals in response to the load thereon.
- 7. A pendant responsive crane control system as set forth in claim 6, wherein said load sensor is located above said hoist.
- 8. A pendant responsive crane control system as described in claim 7, wherein said swinging link includes said load sensor.
- 9. A pendant responsive crane control system as set forth in claim 8, wherein said load sensor is a load cell.
- 10. A method for controlling a pendant responsive crane system, comprising:generating lateral movement signals via lateral movement sensors responsive to lateral movement of a swinging link positioned between a rotary hoist for lifting a load and a crane drive for moving said hoist; and directing lateral movement of said crane drive via a crane control means responsive to the signals generated by said sensors.
- 11. A method for controlling a pendant responsive crane system as set forth in claim 10, said first step further comprising generating load signals via load sensors.
- 12. A pendant responsive crane control system, comprising:a swinging link between a hoist for lifting a load and a crane drive for moving said hoist; lateral movement sensors that generate signals in response to lateral movement of said swinging link indicating the direction and magnitude of said lateral movement; a load sensor generating load signals in response to the load thereon; and crane control means directing lateral movement of said crane drive in response to the signals generated by said sensors.
- 13. A pendant responsive crane control system as set forth in claim 12, wherein said swinging link depends from said crane drive by a universal joint.
- 14. A pendant responsive crane control system as set forth in claim 12, wherein said load sensor is located above said hoist.
- 15. A pendant responsive crane control system as described in claim 12, wherein said swinging link includes said load sensor.
- 16. A pendant responsive crane control system as set forth in claim 12, wherein said load sensor is a load cell.
- 17. A pendant responsive crane control system, comprising:a swinging link between a flexible line hoist for lifting a load suspended from said hoist by a flexible line and a crane drive for moving said hoist; lateral movement sensors that generate signals in response to lateral movement of said swinging link; and crane control means directing lateral movement of said crane drive in response to the signals generated by said sensors.
- 18. A pendant responsive crane control system, comprising:a swinging link and a flexible line between a hoist for lifting a load suspended from said hoist and a crane drive for moving said hoist; lateral movement sensors that generate signals in response to lateral movement of said swinging link; and crane control means directing lateral movement of said crane drive in response to the signals generated by said sensors.
Parent Case Info
This application claims the benefit of U.S. Provisional Application No. 60/241,318, filed on Oct. 18, 2000, which provisional application is incorporated by reference herein,
US Referenced Citations (5)
Foreign Referenced Citations (1)
Number |
Date |
Country |
2018293 |
Jan 1990 |
JP |
Provisional Applications (1)
|
Number |
Date |
Country |
|
60/241318 |
Oct 2000 |
US |