Pipe wrapping apparatus and method

Details Pipe wrapping apparatus and method Pipe wrapping apparatus and method

1992-12-28

1993-11-16

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Surface bonding means and/or assembly means therefor

Longitudinally progressive helical winding means

156187, 156195, 156429, 156446, B65H 8100

Patent

active

052619958

ABSTRACT:
The invention relates to a method and apparatus for wrapping pipe with a cementatious material such as concrete. The material is conveyed to the pipe as a continuous strip provided with notches along one edge and complementary notches are formed at the other edge of the strip as the strip is wrapped spirally onto the pipe. The continuous strip is formed in a hopper having a number of sections of successively reduced widths and containing rollers by which successive superimposed layer portions of the strip are formed with reinforcing mesh embedded between successive layer portions.

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patent: 3623930 (1971-11-01), Grosh
patent: 3740291 (1973-06-01), Mallard
patent: 4006049 (1977-02-01), Gardner
patent: 4081302 (1978-03-01), Drostholm et al.
patent: 4333783 (1982-06-01), Gardner
patent: 4544426 (1985-10-01), Stockman
patent: 4785854 (1988-11-01), Jarvis et al.
patent: 4878976 (1989-11-01), Asakura

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