B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/5
B28B 21/72 (2006.01) B28B 19/00 (2006.01)
Patent
CA 1124995
FD-2160 IN THE UNITED STATES PATENT AND TRADEMARK OFFICE Application for Letters Patent BE IT KNOWN THAT I, CLIFFORD A. PADGETT, a citizen of the United States of America, and residing at 5269 Santee Street, Stone Mountain, County of Guinett, Georgia 30087, have invented certain new and useful improvements in CEMENT LINING OF PIPES ABSTRACT OF THE DISCLOSURE A pipe lining apparatus includes a distributor head which throws cement mortar centrifugally against the interior of a pipe, a trowel which smooths the cement mortar and a liquid coating spray applicator which applies a curing control substance to the trowelled lining. The spray applicator comprises an air atomizing device which produces a very fine coating spray and blows it onto the freshly applied mortar lining without dis- turbing the lining. Also, in one embodiment the coating spray application is mounted to swing laterally with the trowel so as to be maintained centrally in the pipe.
328842
Goudreau Gage & Associates
Raymond International Builders Inc.
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