US4065066A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable handling
Assignee: UNITED STATES TRUST Co
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Filing: 1976-09-30
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Granted: 1977-12-27
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Expires: 1996-09-30
Abstract
Abstract A cable handling mechanism for an X-ray tomographic scanner having a rotor assembly for making a scan of about two revolutions and then rewinding to an initial position includes two axially displaced drums. One drum is attached to the rotor housing and rotates with it; the other is fixed to the stationary structure. A pulley carrier between the two drums is rotatable about the same axis and carries large and small idler pulleys. At one extreme end position one or more individual cables inside a loose-fitting flexible tube are wound around the rotating drum for two turns, around the large idler pulley and in the opposite direction around the fixed drum for a single turn, and a control cable is attached to the rotating drum wound in a direction opposite to that of the flexible tube but for only one turn, around the small idler pulley and in the opposite direction on the fixed drum for two turns to which the other end of the control cable is attached.
Inventors
- 👤 Alan M. Swett
- 👤 Roderick D. Swift
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:59
CPC Classifications
H; H02; H02G; H02G11/00; A; A61; A61B; A61B6/00; A61B6/56; B; B65; B65H; B65H51/00; B65H51/20; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/44; B65H75/4449; B65H75/4452
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
168 words
Cable handling apparatus comprising, first and second drum means axially displaced along and relatively rotatable about a common axis for carrying flexible cables thereon, pulley carrier means separating said first and second drum means and relatively rotatable about said common axis with respect to said first and second drum means for carrying pulley means, first and second pulley means mounted on said pulley carrier means for guiding flexible cables along first and second arcuate paths respectively of different lengths so that said pulley carrier means moves about said common axis as said pulleys guide cables over said arcuate paths, a first flexible cable having first and second points secured to said first and second drum means respectively and a standing part therebetween guidable over said first arcuate path by said first pulley means, and a second flexible cable having first and second points connected to said first and second drum means respectively and a standing part therebetween guidable over said second arcuate path by said second pulley means.
Claim 2
Dependent Claim
168 words
Cable handling apparatus comprising, first and second drum means axially displaced along and relatively rotatable about a common axis for carrying flexible cables thereon, pulley carrier means separating said first and second drum means and relatively rotatable about said common axis with respect to said first and second drum means for carrying pulley means, first and second pulley means mounted on said pulley carrier means for guiding flexible cables along first and second arcuate paths respectively of different lengths so that said pulley carrier means moves about said common axis as said pulleys guide cables over said arcuate paths, a first flexible cable having first and second points secured to said first and second drum means respectively and a standing part therebetween guidable over said first arcuate path by said first pulley means, and a second flexible cable having first and second points connected to said first and second drum means respectively and a standing part therebetween guidable over said second arcuate path by said second pulley means.
Claim 3
Dependent Claim
70 words
Cable handling apparatus in accordance with claim 1 wherein said first and second arcuate paths are angularly spaced about said common axis with the arcuate paths opening in opposite directions so that upon relative angular displacement between said first and second drums said first cable unwinds from one of said drums and winds on the other while said second cable unwinds on said one drum and winds on said other.
Claim 4
Dependent Claim
25 words
Cable handling apparatus in accordance with claim 2 wherein said first and second cables are wound in opposite sense about said first and second drums.
Claim 5
Dependent Claim
60 words
Cable handling apparatus in accordance with claim 3 and further comprising means for winding said first cable on near portions of said first and second drum means adjacent to said pulley carrier means and means for winding said second cable upon far portions of said first and second drum means spaced from said pulley carrier means by said near portions.
Claim 6
Independent Claim
104 words
A method of cable handling which method includes the steps of, rotating a first drum to which points on first and second cables are connected in a first sense to wind the first cable upon and unwind the second cable from said first drum while simultaneously unwinding the first cable from and winding the second cable upon a second stationary drum, and rotating said first drum in a second sense opposite said first sense to unwind the first cable from and wind the second cable upon said first drum while winding the first cable upon and unwinding the second cable from said second drum.
Claim 7
Independent Claim
104 words
A method of cable handling which method includes the steps of, rotating a first drum to which points on first and second cables are connected in a first sense to wind the first cable upon and unwind the second cable from said first drum while simultaneously unwinding the first cable from and winding the second cable upon a second stationary drum, and rotating said first drum in a second sense opposite said first sense to unwind the first cable from and wind the second cable upon said first drum while winding the first cable upon and unwinding the second cable from said second drum.
Claim 8
Dependent Claim
30 words
A method of cable handling in accordance with claim 5 and further including the step of winding said first and second cables in opposite directions about each of said drums.
References Cited (Backward Citations)
US2605977A
Cited
US3120355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-26 | 1981-06-27 | 1981-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-26 | 1985-06-27 | 1985-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-26 | 1989-06-27 | 1989-12-27 | $7700.00 | Window Closed / Lapsed |