Apparatus and method for repairing a damaged portion in a...

Details Apparatus and method for repairing a damaged portion in a... Apparatus and method for repairing a damaged portion in a...

2006-04-18

2006-04-18

Smith, Duane (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Product or preform repair or restoring means

C156S094000, C264S036150, C264S036160

Reexamination Certificate

active

07029254

ABSTRACT:
There are provided a shaft adapted for introduction into a tubular member made of refractory material and an expander provided on a leading edge of the shaft. The expander has both ends provided with a repairing material container and a seat plate. With the repairing material container having monolithic refractory material loaded therein confronted to a damaged portion in an inner wall of the tubular member, the expander is expanded by a driving motor to push the repairing material container toward the damaged portion while pushing the seat plate in contact with a wall surface opposite to the damaged portion in behind. Thus, the monolithic refractory material is filled and deposited in the damaged portion under remote control.

REFERENCES:
patent: 1906557 (1933-05-01), Evans
patent: 3142868 (1964-08-01), Blount
patent: 5527169 (1996-06-01), Goldenberg et al.
patent: 5558882 (1996-09-01), Ulmer
patent: 21 43 241 (1972-03-01), None
patent: 36 01 621 (1987-03-01), None
patent: 06-145737 (1994-05-01), None

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