US4114765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for rotating heavy objects
Assignee: PLANNING KOGYO KK
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Filing: 1976-11-29
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Granted: 1978-09-19
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Expires: 1996-11-29
Abstract
Abstract Apparatus for rotating a heavy object about its longitudinal axis consisting of an I-beam having a number of openings along its length and a pair of units for revolving endless cords for supporting the heavy object. The units are attached to the I-beam by pins inserted through the openings and are lifted by a crane together with said I-beam. Further, means are provided to prevent slip of the cord at the pulleys and disengagement of the cord from the pulleys when the cords slacken.
Inventors
- 👤 Yoichi Kojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:25
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; B66C1/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
212 words
An apparatus for rotating a heavy object, said apparatus comprising: a horizontal beam, said beam having a plurality of longitudinally spaced openings formed along its length, a pair of endless cord revolving units, means for selectively and longitudinally adjustably attaching each revolving unit to said beam, said last mentioned means comprising a pair of pins, wherein each pin is insertable through registering apertures formed in a respective revolving unit and through one of said openings formed in said beam whereby said revolving units are secured to and longitudinally spaced along said beam, means for holding said beam in an elevated position, said holding means comprising hook means supported above said beam and at least one elongated flexible member, said flexible member secured at one end to one pin and at its other end to the other pin, wherein said flexible member is secured substantially at its midpoint by said hook means to thereby maintain said beam in an elevated and horizontal position; and means for detachably connecting said object to said endless cord revolving units wherein said last mentioned means comprises endless cords actuated by said units and forming loops, said object being positioned within the loops formed by said endless cords whereby actuation of said units produces rotation of said object.
Claim 2
Independent Claim
212 words
An apparatus for rotating a heavy object, said apparatus comprising: a horizontal beam, said beam having a plurality of longitudinally spaced openings formed along its length, a pair of endless cord revolving units, means for selectively and longitudinally adjustably attaching each revolving unit to said beam, said last mentioned means comprising a pair of pins, wherein each pin is insertable through registering apertures formed in a respective revolving unit and through one of said openings formed in said beam whereby said revolving units are secured to and longitudinally spaced along said beam, means for holding said beam in an elevated position, said holding means comprising hook means supported above said beam and at least one elongated flexible member, said flexible member secured at one end to one pin and at its other end to the other pin, wherein said flexible member is secured substantially at its midpoint by said hook means to thereby maintain said beam in an elevated and horizontal position; and means for detachably connecting said object to said endless cord revolving units wherein said last mentioned means comprises endless cords actuated by said units and forming loops, said object being positioned within the loops formed by said endless cords whereby actuation of said units produces rotation of said object.
Claim 3
Dependent Claim
40 words
The apparatus as defined in claim 1 and in which said units comprise endless cords actuated by said units and said object fits within said loops, said units each being provided with a plurality of pulleys receiving said endless cord.
Claim 4
Dependent Claim
28 words
The apparatus as defined in claim 1 and including a grip member grippingly engaging said object and said grip member including means detachably attached to said endless cord.
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) | 1981-09-18 | 1982-03-20 | 1982-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-18 | 1986-03-20 | 1986-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-18 | 1990-03-20 | 1990-09-19 | $7700.00 | Window Closed / Lapsed |