Patent US4337923A successfully refreshed from Google Patents.
US4337923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibre optical cable pulling eye
Assignee: MCALLISTER INDUSTRIES Ltd
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Filing: 1980-09-23
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Granted: 1982-07-06
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Expires: 2000-09-23
Abstract
Abstract A device for attachment to fibre optic cable for pulling such cable through trunking systems or the like, includes a tubular body for receiving an end of the cable and adapted for crimping around the cable. A head portion of the device, in alignment with the tubular portion, includes apparatus for locking a central strength member of the cable into the device. In a preferred embodiment the locking apparatus consists of a plurality of set screws spaced throughout the length of the head portion and serving to crimp and secure the strength member to the pulling device.
Inventors
- 👤 Jackson A. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:22
CPC Classifications
F; F16; F16G; F16G11/00; F16G11/06; G; G02; G02B; G02B6/00; G02B6/46; G02B6/50; G02B6/54; G02B6/545; H; H02; H02G; H02G1/00; H02G1/06; H02G1/08; H02G1/081; Y; Y10; Y10T; Y10T403/00; Y10T403/49; Y10T403/4991; Y10T403/70; Y10T403/7041
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A device for pulling fibre optic cable of the type having a central strength member, comprising an elongated body having a tubular sleeve at one end for receiving one end of the cable and adapted for circumferentially crimping around the cable at a series of spaced locations along the length of the sleeve; and an integrally formed head portion in alignment with the sleeve, said head portion having a central bore substantially the length of the head for receiving the central strength member of the cable beyond the terminal end of the cable, and means for locking the central strength member to the head portion, comprising at least a pair of spaced locking screws positioned at right angles to the central bore and engaging the strength member to crimp it into sockets aligned with the ends of the locking screws; a pressurization valve in the head portion for pressurizing the connection between the cable and the pulling device; and a pulling eye at the terminal end of the head portion beyond the locking means; the crimping of the tubular sleeve around the cable serving to transmit pull to to the cable from the pulling eye in combination with direct pull applied to the central strength.
Claim 2
Independent Claim
205 words
A device for pulling fibre optic cable of the type having a central strength member, comprising an elongated body having a tubular sleeve at one end for receiving one end of the cable and adapted for circumferentially crimping around the cable at a series of spaced locations along the length of the sleeve; and an integrally formed head portion in alignment with the sleeve, said head portion having a central bore substantially the length of the head for receiving the central strength member of the cable beyond the terminal end of the cable, and means for locking the central strength member to the head portion, comprising at least a pair of spaced locking screws positioned at right angles to the central bore and engaging the strength member to crimp it into sockets aligned with the ends of the locking screws; a pressurization valve in the head portion for pressurizing the connection between the cable and the pulling device; and a pulling eye at the terminal end of the head portion beyond the locking means; the crimping of the tubular sleeve around the cable serving to transmit pull to to the cable from the pulling eye in combination with direct pull applied to the central strength.
References Cited (Backward Citations)
US2267630A
Cited
US2901725A
Cited
US3166810A
Cited
US3551959A
Cited
US3573346A
Cited
US3857645A
Cited
US3769685A
Cited
US3989400A
Cited
US4002817A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |