US3211490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoist attachments
Assignee: GARDNER ENGINEERING Corp
•
Filing: 1963-04-01
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Granted: 1965-10-12
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 Elmer C Gardner
- 👤 Eugene A Horstketter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:10
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/42; B66C1/44; B66C1/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A POWER OPERATED SAFETY HOIST ATTACHMENT COMPRISING IN COMBINATION A FRAME COMPRISING A TUBULAR MEMBER HAVING A VERTICAL AXIS AND INCLUDING MEANS FOR ATTACHING SAID MEMBER TO A HOISTING DEVICE, AND A PLURALITY OF CIRCUMFERENTIALLY SPACED ARMS EXTENDING RADIALLY RADIALLY FROM SAID TUBULAR MEMBER AND SECURED THERETO, A MOTOR CARRIED WITHIN SAID TUBULAR MEMBER AND MOVABLE WITH RESPECT THERETO ALONG THE AXIS OF SAID TUBULAR MEMBER, A PLURALITY OF LOAD SUPPORTING MEMBERS, EACH SAID MEMBER BEING PIVOTALLY CARRIED BY ONE OF SAID SPACED ARMS AND EACH BEING OPERATIVELY ARRANGED FOR ACTUATION TO A FIRST POSITION IN WHICH A LOAD IS HOOKED, AND A SECOND POSITION IN WHICH THE LOAD IS RELEASED, MEANS OPERATIVELY INTERCONNECTING SAID MOTOR WITH EACH OF SAID LOAD SUPPORTING MEMBERS TO SIMULTANEOUSLY PIVOT SAID LOAD SUPPORTING MEMBERS TO SIMULTANEOUSLY POSITIONS TO THE OTHER WHEN SAID MOTOR IS OPERATED, AND LOCKING MEANS OPERATIVELY CONNECTED TO SAID MOTOR TO PREVENT PIVOTAL MOVEMENT OF SAID LOAD SUPPORTING MEMBERS WHEN SAID MEMBERS ARE ACTUATED TO SAID SAID FIRST POSITION.
Claim 2
Dependent Claim
168 words
A POWER OPERATED SAFETY HOIST ATTACHMENT COMPRISING IN COMBINATION A FRAME COMPRISING A TUBULAR MEMBER HAVING A VERTICAL AXIS AND INCLUDING MEANS FOR ATTACHING SAID MEMBER TO A HOISTING DEVICE, AND A PLURALITY OF CIRCUMFERENTIALLY SPACED ARMS EXTENDING RADIALLY RADIALLY FROM SAID TUBULAR MEMBER AND SECURED THERETO, A MOTOR CARRIED WITHIN SAID TUBULAR MEMBER AND MOVABLE WITH RESPECT THERETO ALONG THE AXIS OF SAID TUBULAR MEMBER, A PLURALITY OF LOAD SUPPORTING MEMBERS, EACH SAID MEMBER BEING PIVOTALLY CARRIED BY ONE OF SAID SPACED ARMS AND EACH BEING OPERATIVELY ARRANGED FOR ACTUATION TO A FIRST POSITION IN WHICH A LOAD IS HOOKED, AND A SECOND POSITION IN WHICH THE LOAD IS RELEASED, MEANS OPERATIVELY INTERCONNECTING SAID MOTOR WITH EACH OF SAID LOAD SUPPORTING MEMBERS TO SIMULTANEOUSLY PIVOT SAID LOAD SUPPORTING MEMBERS TO SIMULTANEOUSLY POSITIONS TO THE OTHER WHEN SAID MOTOR IS OPERATED, AND LOCKING MEANS OPERATIVELY CONNECTED TO SAID MOTOR TO PREVENT PIVOTAL MOVEMENT OF SAID LOAD SUPPORTING MEMBERS WHEN SAID MEMBERS ARE ACTUATED TO SAID SAID FIRST POSITION.
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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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |