The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 24, 1996
Filed:
Dec. 30, 1994
Steve C Owens, Coweta County, GA (US);
Richard V Lovvorn, Carroll County, GA (US);
Albert B Elder, Haralson County, GA (US);
Southwire Company, Carrollton, GA (US);
Abstract
A ferromagnetic cable insertion tube is cantilevered from a polymeric conduit extruder and separates an electrical and/or optical cable being pulled through the conduit from the inner surface of the conduit until it has solidified. A d.c. current source is applied to a coil surrounding the cable insertion tube upstream or downstream of the extruder so as to induce a magnetic flux in the tube and create a north pole at the downstream free end of the tube and a south pole at the upstream free end of the tube. An array of magnets is assembled about the insertion tube at the downstream free end or north pole thereof. The magnets are arranged with their north poles confronting the north pole of the insertion tube so that the repulsive forces between the like poles magnetically levitate the free end of the insertion tube and keep it from sagging into contact with the extruded conduit.