Patent US4099800A successfully refreshed from Google Patents.
Patent US3199685A successfully refreshed from Google Patents.
US3199685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Overload safety device for material handling mechanism
Assignee: US TRUCK CRANES Inc A PA CORP
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Filing: 1964-03-02
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Granted: 1965-08-10
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Expires: 1984-03-02
Abstract
No abstract record available.
Inventors
- 👤 Cecil W Bopp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:06
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/88; B66C23/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A MATERIAL HANDLING APPARATUS OF THE TYPE DESCRIBED HAVING LOAD-STRESSED MAST AND BOOM MEMBERS AND ELECTRICALLY CONTROLLABLE MEANS FOR ACTUATING A PLURALITY OF FORWARD AND REVERSE MOVEMENTS OF A LOAD SUSPENDED FROM SAID BOOM MEMBER, IN COMBINATION, (A) A FIRST MEMBER DISPOSED IN SPACED ADJACENT RELATION TO ONE OF SAID STRESSED MEMBERS AND HAVING ONE END PORTION FIXED TO SAID STRESSED MEMBER, (B) SWITCHING MEANS MOUNTED UPON THE FREE END OF SAID FIRST MEMBER AND ELECTRICALLY CONNECTED IN SERIES WITH THE MEANS FOR ACTUATING FORWARD MOVEMENT OF SAID LOAD AND IN PARALLEL WITH THE MEANS FOR ACTUATING REVERSE MOVEMENTS OF SAID LOAD,
Claim 2
Dependent Claim
103 words
IN A MATERIAL HANDLING APPARATUS OF THE TYPE DESCRIBED HAVING LOAD-STRESSED MAST AND BOOM MEMBERS AND ELECTRICALLY CONTROLLABLE MEANS FOR ACTUATING A PLURALITY OF FORWARD AND REVERSE MOVEMENTS OF A LOAD SUSPENDED FROM SAID BOOM MEMBER, IN COMBINATION, (A) A FIRST MEMBER DISPOSED IN SPACED ADJACENT RELATION TO ONE OF SAID STRESSED MEMBERS AND HAVING ONE END PORTION FIXED TO SAID STRESSED MEMBER, (B) SWITCHING MEANS MOUNTED UPON THE FREE END OF SAID FIRST MEMBER AND ELECTRICALLY CONNECTED IN SERIES WITH THE MEANS FOR ACTUATING FORWARD MOVEMENT OF SAID LOAD AND IN PARALLEL WITH THE MEANS FOR ACTUATING REVERSE MOVEMENTS OF SAID LOAD,
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) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |