Patent EP0058534A2 successfully refreshed from Google Patents.
Patent US3917112A successfully refreshed from Google Patents.
US3333716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lifting boom control device
Assignee: General Electric Canada Co
•
Filing: 1965-12-28
•
Granted: 1967-08-01
•
Expires: 1985-12-28
Abstract
No abstract record available.
Inventors
- 👤 Edwin E Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:05
CPC Classifications
F; F15; F15B; F15B9/00; B; B25; B25J; B25J3/00; B25J3/04; B66; B66C; B66C13/00; B66C13/18; B66C23/00; B66C23/88; B66C23/90; B66C2700/00; B66C2700/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
A MATERIAL HANDLING DEVICE COMPRISING IN COMBINATION A CONTROL MEMBER HAVING A CONTROL SHAFT AND A CONTROL HANDLE SLIDABLE ON SAID CONTROL SHAFT, AND EXTENSIBLE BOOM HAVING AN EXTENSIBLE SECTION SLIDABLE IN A NON-EXTENSIBLE SECTION, MEANS ACTUATED BY SAID CONTROL MEMBER FOR APPLYING FORCE TO SAID BOOM IN AZIMUTH, FORCE REDUCING MEANS FOR APPLYING A FORCE EQUAL TO A PREDETERMINED PORTION OF THE AZIMUTH FORCE TO THE CONTROL MEMBER, MEANS ACTUATED BY SAID CONTROL MEMBER FOR APPLYING FORCE TO SAID BOOM IN A VERTICAL DIRECTION, FORCE REDUCING MEANS FOR APPLYING A FORCE EQUAL TO A PREDETERMINED PORTION OF THE VERTICAL FORCE TO THE CONTROL MEMBER, MEANS ACTUATED BY SAID CONTROL MEMBER FOR APPLYING MOVING FORCE TO A PART OF SAID BOOM TO CHANGE THE LENGTH OF SAID BOOM, FORCE REDUCING MEANS FOR APPLYING A FORCE EQUAL TO A PREDETERMINED PORTION OF THE CHANGE OF LENGTH MOVING FORCE TO THE CONTROL MEMBER COMPRISING A LEVER WITH ONE END PIVOTED TO SAID NON-EXTENSIBLE SECTION, THE OTHER END PIVOTED TO SAID CONTROL HANDLE AND AN INTERMEDIATE POINT SERVING AS THE ANCHOR POINT FOR SAID LENGTH CHANGING MEANS FOR APPLYING FORCE TO SAID MOVABLE SECTION.
Claim 2
Dependent Claim
191 words
A MATERIAL HANDLING DEVICE COMPRISING IN COMBINATION A CONTROL MEMBER HAVING A CONTROL SHAFT AND A CONTROL HANDLE SLIDABLE ON SAID CONTROL SHAFT, AND EXTENSIBLE BOOM HAVING AN EXTENSIBLE SECTION SLIDABLE IN A NON-EXTENSIBLE SECTION, MEANS ACTUATED BY SAID CONTROL MEMBER FOR APPLYING FORCE TO SAID BOOM IN AZIMUTH, FORCE REDUCING MEANS FOR APPLYING A FORCE EQUAL TO A PREDETERMINED PORTION OF THE AZIMUTH FORCE TO THE CONTROL MEMBER, MEANS ACTUATED BY SAID CONTROL MEMBER FOR APPLYING FORCE TO SAID BOOM IN A VERTICAL DIRECTION, FORCE REDUCING MEANS FOR APPLYING A FORCE EQUAL TO A PREDETERMINED PORTION OF THE VERTICAL FORCE TO THE CONTROL MEMBER, MEANS ACTUATED BY SAID CONTROL MEMBER FOR APPLYING MOVING FORCE TO A PART OF SAID BOOM TO CHANGE THE LENGTH OF SAID BOOM, FORCE REDUCING MEANS FOR APPLYING A FORCE EQUAL TO A PREDETERMINED PORTION OF THE CHANGE OF LENGTH MOVING FORCE TO THE CONTROL MEMBER COMPRISING A LEVER WITH ONE END PIVOTED TO SAID NON-EXTENSIBLE SECTION, THE OTHER END PIVOTED TO SAID CONTROL HANDLE AND AN INTERMEDIATE POINT SERVING AS THE ANCHOR POINT FOR SAID LENGTH CHANGING MEANS FOR APPLYING FORCE TO SAID MOVABLE SECTION.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |