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:
Aug. 17, 1993
Filed:
Oct. 24, 1991
Arvid K Grimsley, Greenwich, CT (US);
Joseph J Franzino, Trumbull, CT (US);
Goodway Tools Corporation, Stamford, CT (US);
Abstract
A tube cleaning apparatus for tubes and pipes installed in power plant and similar industrial equipment utilizes a rotating brush assembly fitted to one end of a rotary cable encased in a protective casing and driven at its other end in clockwise and counterclockwise rotation by a reversible motor. The invention provides a drive head fitted with a plurality of drive rollers for engaging the protective casing and propelling the casing, cable and brush assembly at a high rate of speed into and out of each tube being cleaned. The drive rollers may be driven by a separately provided reversible motor or by the same motor used for the protective casing. A control mechanism affixed to the drive head enables the operator to manipulate the reversible motor(s) by issuing air pulses to actuate air switches controlling on/off and direction of rotation of the motor(s). An extension device provides for access of the cleaning apparatus particularly the brush assembly to tubes and pipes situated in confined or obstructed locations in a tube sheet. Braking mechanisms are provided for the drive head, protective cable, and the extension device to limit the high speed operational excursion of the brush assembly to tube length.