Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1984-06-22
1986-01-14
Olszewski, Robert P.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51424, 51437, 51434, 118DIG10, B24C 332
Patent
active
045638411
ABSTRACT:
A machine for cleaning the interior uncoated surfaces surrounding the weld joints in an otherwise internally coated pipeline comprising a first plate mounted on the machine and extending transversely across the pipeline when the machine is disposed within the pipeline, a second plate mounted on the machine in spaced parallel relation with the first plate, a first resilient member mounted on the first plate and having a circular periphery for engaging the inner periphery of the pipeline wall, a second resilient member mounted on the second plate and having a circular periphery for engaging the inner periphery of the pipeline wall, the first and second plates with their attached resilient members forming a closed cleaning chamber sealed at its ends with respect to the pipeline, a hollow rotatable hub mounted on the machine and within the cleaning chamber and rotatable on an axis substantially co-axial with the longitudinal central axis of the pipeline, a plurality of hollow tubes extending radially outward from the hub and in communication with the interior of the hub, a motor for rotating the hub whereby air is forced outwardly through the tubes to create a partial vacuum within the interior of the hub, arrangement for supplying particulate abrasive material to the interior of the hub whereby the vacuum created upon rotation of the hub will cause the particulate material to be propelled outwardly against the interior of the pipeline wall, wheels for moving the machine so as to position the radial tubes in alignment with a weld joint whereby, upon rotation of the hub and upon supplying the hub with particulate abrasive material, the tubes will propel the particulate material against the weld joint to clean the same by a sand blasting effect, a rotary disc and linkage acting in timed response to the initial rotation of the hub for oscillating the plates and hub as a unit longitudinally with respect to weld joint whereby the tubes will move alternately back and forth across the weld joint to clean the entire weld joint area, and a vacuum head for removing accumulated spent particulate material and blasted-off material continuously from the cleaning chamber.
REFERENCES:
patent: 3058137 (1962-10-01), Doyle et al.
patent: 3125464 (1964-03-01), Harmes
patent: 3135629 (1964-06-01), McLean
patent: 3477178 (1969-11-01), Hulbert
patent: 3824738 (1974-07-01), Hall
patent: 3967584 (1976-07-01), Hasegawa et al.
patent: 4092950 (1978-06-01), Hart
patent: 4177734 (1979-12-01), Rhoden
patent: 4329819 (1982-05-01), May
Hart Milburn L.
Hart Robert J.
Dorman William S.
Olszewski Robert P.
Resource Engineering & Manufacturing Company
LandOfFree
Internal grit blast weld joint cleaner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Internal grit blast weld joint cleaner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Internal grit blast weld joint cleaner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-424956