Implements or apparatus for applying pushing or pulling force – Method or apparatus for placement of conductive wire – Conduit snakes
Reexamination Certificate
2005-07-26
2005-07-26
Wilson, Lee D. (Department: 3723)
Implements or apparatus for applying pushing or pulling force
Method or apparatus for placement of conductive wire
Conduit snakes
Reexamination Certificate
active
06921059
ABSTRACT:
A method of evening the tension in the conductors of a twisted pair electric cable during the cable's installation comprising the step of pulling the cable through stlinging rollers while attached to a tension evening device. That allows constant adjustment of the tension in each of the cable's conductors, which prevents an unwanted looping effect and eliminates the need to even the tension at the end of the installation process. The tension evening device comprises a pull rope attached to a swivel that holds a sheave. The device is sized small enough so that it fits through the stringing rollers such that, during the installation of the cable, the entire tension evening device is pulled through. The sheave includes a groove around its outside diameter in which a sheave rope is placed. The ends of the sheave rope are attached to an end of each conductor. The tension in the conductors is maintained by the sheave and sheave rope which rotate in response to the tension or force applied by the conductors, providing greater slack to the higher tensioned conductor and exerting a greater pulling force on the lower tensioned conductor.
REFERENCES:
patent: 2480488 (1949-08-01), MacClatchie
patent: 2738143 (1956-03-01), Hannay
patent: 3185443 (1965-05-01), Eitel
patent: 3612596 (1971-10-01), Brackin
patent: 3850468 (1974-11-01), Hultin
patent: 3863897 (1975-02-01), Yeager
patent: 3881647 (1975-05-01), Wolfe
patent: 4019715 (1977-04-01), Vugrek
patent: 4129287 (1978-12-01), Lindsey et al.
patent: 4152814 (1979-05-01), Ito
patent: 4407693 (1983-10-01), Paquin
patent: 4469267 (1984-09-01), Franchuk et al.
patent: 4858977 (1989-08-01), Mitchell
patent: 5009353 (1991-04-01), Alquist
patent: 6131845 (2000-10-01), Burlingame et al.
Blank Rome LLP
General Cable Technologies Corp.
Wilson Lee D.
LandOfFree
Method for evening tension in a twisted pair electric cable does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for evening tension in a twisted pair electric cable, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for evening tension in a twisted pair electric cable will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3408126