US3103257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevating apparatus
Assignee: Individual
•
Filing: 1961-04-11
•
Granted: 1963-09-10
•
Expires: 1981-04-11
Abstract
No abstract record available.
Inventors
- 👤 Richards Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:18
CPC Classifications
B; B66; B66F; B66F11/00; B66F11/04; B66F11/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
AN ELEVATING APPARATUS COMPRISING A BASE, A FIRST BOOM PIVOTALLY MOUNTED ON THE BASE FOR ELEVATIONAL SWINGING MOVEMENT AND HAVING AN EXTENDED END, A SECOND BOOM PIVOTALLY MOUNTED ON THE EXTENDED END OF THE FIRST BOOM FOR ELEVATIONAL SWINGING MOVEMENT AND HAVING AN EXTENDED END, A FIRST SHEAVE RIGIDLY MOUNTED CONCENTRICALLY OF THE PIVOTAL MOUNTING OF THE FIRST BOOM ON THE BASE WHEREBY RELATIVE MOVEMENT OCCURS BETWEEN THE FIRST SHEAVE AND THE FIRST BOOM UPON ELEVATIONAL MOVEMENT OF THE LATTER, A SECOND SHEAVE RIGIDLY MOUNTED ON THE SECOND BOOM CONCENTRICALLY OF THE PIVOTAL MOUNTING OF THE SECOND BOOM ON THE FIRST BOOM, POWERED MEANS CONNECTED TO THE FIRST BOOM FOR PIVOTALLY RAISING AND LOWERING SAME AND MEANS INTERCONNECTING SAID SHEAVES ECCENTRICALLY OF THEIR RESPECTIVE BOOM MOUNTINGS FOR PIVOTING SAID SECOND BOOM RELATIVE TO THE FIRST BOOM DURING SAID ELEVATIONAL SWINGING MOVEMENT OF THE FIRST BOOM, SAID FIRST SHEAVE BEING OF A DIAMETER TWICE THAT OF SAID SECOND SHEAVE WHEREBY THE EXTENDED END OF THE SECOND BOOM DEFINES A SUBSTANTIALLY STRAIGHT PATH OF TRAVEL DURING SAID ELEVATIONAL SWINGING MOVEMENT OF THE BOOMS.
Claim 2
Dependent Claim
181 words
AN ELEVATING APPARATUS COMPRISING A BASE, A FIRST BOOM PIVOTALLY MOUNTED ON THE BASE FOR ELEVATIONAL SWINGING MOVEMENT AND HAVING AN EXTENDED END, A SECOND BOOM PIVOTALLY MOUNTED ON THE EXTENDED END OF THE FIRST BOOM FOR ELEVATIONAL SWINGING MOVEMENT AND HAVING AN EXTENDED END, A FIRST SHEAVE RIGIDLY MOUNTED CONCENTRICALLY OF THE PIVOTAL MOUNTING OF THE FIRST BOOM ON THE BASE WHEREBY RELATIVE MOVEMENT OCCURS BETWEEN THE FIRST SHEAVE AND THE FIRST BOOM UPON ELEVATIONAL MOVEMENT OF THE LATTER, A SECOND SHEAVE RIGIDLY MOUNTED ON THE SECOND BOOM CONCENTRICALLY OF THE PIVOTAL MOUNTING OF THE SECOND BOOM ON THE FIRST BOOM, POWERED MEANS CONNECTED TO THE FIRST BOOM FOR PIVOTALLY RAISING AND LOWERING SAME AND MEANS INTERCONNECTING SAID SHEAVES ECCENTRICALLY OF THEIR RESPECTIVE BOOM MOUNTINGS FOR PIVOTING SAID SECOND BOOM RELATIVE TO THE FIRST BOOM DURING SAID ELEVATIONAL SWINGING MOVEMENT OF THE FIRST BOOM, SAID FIRST SHEAVE BEING OF A DIAMETER TWICE THAT OF SAID SECOND SHEAVE WHEREBY THE EXTENDED END OF THE SECOND BOOM DEFINES A SUBSTANTIALLY STRAIGHT PATH OF TRAVEL DURING SAID ELEVATIONAL SWINGING MOVEMENT OF THE BOOMS.
References Cited (Backward Citations)
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Cited
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US2616768A
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US2815250A
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US2724620A
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US3009546A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |