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:
Sep. 12, 2000
Filed:
Oct. 01, 1997
Phillip E Pruett, Bakersfield, CA (US);
Other;
Abstract
The present invention describes a method and apparatus for inserting a cable, in a duct, tube, or other hollow, elongated structure which can be sealed at the point of insertion of the cable to create a pressure housing. The invention comprises positioning a tube in the well, positioning a source of cable adjacent the well, and inserting the cable through a pressure housing into the tubing by means of polymer foam mixture under pressure. A mechanical force may be employed on the fiber optic to overcome any resistance created by the lubrication fitting at the pressure housing. The foam is in the form of a concentrate, which, when mixed with a liquid source and air, expands significantly when injected into the capillary. Due to such expansion, the foam adheres to the surface of the cable, creating a viscous drag against the cable in the direction of pressure flow.