US3148659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safe load indicating devices for cranes
Assignee: Individual
•
Filing: 1963-02-04
•
Granted: 1964-09-15
•
Expires: 1983-02-04
Abstract
No abstract record available.
Inventors
- 👤 Aitken Robert Loudon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:32
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/88; B66C23/90; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
196 words
AN EFFECTIVE CRANE RADIUS DEVICE FOR COMPENSATING A SAFE-LOAD INDICATING DEVICE OF THE TYPE WHICH IS COMPENSATED FOR CHANGE OF OPERATING RADIUS BY COMPENSATING MEANS WHICH ARE INCORPORATED IN THE SAFE-LOAD INDICATING DEVICE IN ACCORDANCE WITH A CHANGE OF THE VERTICAL ANGULAR POSITION OF A PART OF THE CRANE, WHICH PART CHANGES ITS ANGLE TO THE VERTICAL SIMULATANEOUSLY WITH CHANGE OF THE VERTICAL ANGULAR POSITION OF THE JIB, SAID DEVICE COMPRISING A BODY, AN OUTPUT MEMBER MOVABLE IN SAID BODY, A TRANSMISSION LINKAGE AT A CONNECTION POINT ON SAID OUTPUT MEMBER AND ADAPTED TO BE CONNECTED TO THE JIB ANGLE COMPENSATING MEANS OF THE SAFE-LOAD INDICATING DEVICE, A FIRST INPUT MEMBER MOVABLE IN SAID BODY IN RESPONSE TO CHANGE OF CRANE JIB ANGLE, A SECOND INPUT MEMBER MOVABLE IN SAID BODY IN RESPONSE TO CHANGE OF CRANE JIB EXTENSION, AND COMBINING MEANS COUPLED TO SAID INPUT MEMBERS AND CONNECTED WITH THE OUTPUT MEMBER FOR COMBINING THE MOVEMENT OF SAID FIRST AND SECOND INPUT MEMBERS, WHEREBY THE SPATIAL POSITION OF SAID CONNECTION POINT, AT WHICH SAID OUTPUT MEMBER AND SAID TRANSMISSION LINKAGE ARE CONNECTED IS A FUNCTION OF THE MOVEMENT OF THE FIRST AND SECOND INPUT MEMBERS.
Claim 2
Dependent Claim
196 words
AN EFFECTIVE CRANE RADIUS DEVICE FOR COMPENSATING A SAFE-LOAD INDICATING DEVICE OF THE TYPE WHICH IS COMPENSATED FOR CHANGE OF OPERATING RADIUS BY COMPENSATING MEANS WHICH ARE INCORPORATED IN THE SAFE-LOAD INDICATING DEVICE IN ACCORDANCE WITH A CHANGE OF THE VERTICAL ANGULAR POSITION OF A PART OF THE CRANE, WHICH PART CHANGES ITS ANGLE TO THE VERTICAL SIMULATANEOUSLY WITH CHANGE OF THE VERTICAL ANGULAR POSITION OF THE JIB, SAID DEVICE COMPRISING A BODY, AN OUTPUT MEMBER MOVABLE IN SAID BODY, A TRANSMISSION LINKAGE AT A CONNECTION POINT ON SAID OUTPUT MEMBER AND ADAPTED TO BE CONNECTED TO THE JIB ANGLE COMPENSATING MEANS OF THE SAFE-LOAD INDICATING DEVICE, A FIRST INPUT MEMBER MOVABLE IN SAID BODY IN RESPONSE TO CHANGE OF CRANE JIB ANGLE, A SECOND INPUT MEMBER MOVABLE IN SAID BODY IN RESPONSE TO CHANGE OF CRANE JIB EXTENSION, AND COMBINING MEANS COUPLED TO SAID INPUT MEMBERS AND CONNECTED WITH THE OUTPUT MEMBER FOR COMBINING THE MOVEMENT OF SAID FIRST AND SECOND INPUT MEMBERS, WHEREBY THE SPATIAL POSITION OF SAID CONNECTION POINT, AT WHICH SAID OUTPUT MEMBER AND SAID TRANSMISSION LINKAGE ARE CONNECTED IS A FUNCTION OF THE MOVEMENT OF THE FIRST AND SECOND INPUT MEMBERS.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |