US3223249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicator for determining the boom angularity of a crane
Assignee: Individual
•
Filing: 1963-12-06
•
Granted: 1965-12-14
•
Expires: 1983-12-06
Abstract
No abstract record available.
Inventors
- 👤 Ivan E Cady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:21
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/88; B66C23/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
STRUCTURE FOR VISUAL DETERMINATION OF THE ANGULARITY OF THE BOOM ON A CRANE OR THE LIKE COMPRISING AN INDICATOR UNIT, MEANS MOUNTING SAID UNIT FOR PENDULUM-LIKE MOVEMENT ON SAID BOOM, SAID MEANS LOCATING SAID UNIT FOR DIRECT VIEWING BY THE CRANE OPERATOR, A POINTER MOUNTED ADJACENT ONE FACE OF SAID UNIT AND ADAPTED TO BE MOVED OVER GRADUATED MARKINGS ON SAID FACE, AND DRIVE MEANS OPERATIVELY CONNECTING SAID POINTER WITH SAID MOUNTING MEANS WHEREBY CHANGES IN BOOM ANGULARITY WILL TRANSLATE TO SAID POINTER.
Claim 2
Dependent Claim
83 words
STRUCTURE FOR VISUAL DETERMINATION OF THE ANGULARITY OF THE BOOM ON A CRANE OR THE LIKE COMPRISING AN INDICATOR UNIT, MEANS MOUNTING SAID UNIT FOR PENDULUM-LIKE MOVEMENT ON SAID BOOM, SAID MEANS LOCATING SAID UNIT FOR DIRECT VIEWING BY THE CRANE OPERATOR, A POINTER MOUNTED ADJACENT ONE FACE OF SAID UNIT AND ADAPTED TO BE MOVED OVER GRADUATED MARKINGS ON SAID FACE, AND DRIVE MEANS OPERATIVELY CONNECTING SAID POINTER WITH SAID MOUNTING MEANS WHEREBY CHANGES IN BOOM ANGULARITY WILL TRANSLATE TO SAID POINTER.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |