Apparatus for troweling pipe lining material

Details Apparatus for troweling pipe lining material Apparatus for troweling pipe lining material

1972-12-27

1976-06-29

Kaplan, Morris

Plastic article or earthenware shaping or treating: apparatus

Shaping member for traversing the interior surface of hollow...

118105, 425262, B05C 302

Patent

active

039663892

ABSTRACT:
A frusto-conical trowel made up of a plurality of overlapping arcuate leaves includes an inflatable member within the trowel to bear against the leaves and urge them outwardly with a substantially uniform force against coating material being applied to the inside surface of a pipe.

REFERENCES:
patent: 2711000 (1955-06-01), Matheny
patent: 2758352 (1956-08-01), Perkins
patent: 3029779 (1962-04-01), Hornbostel
patent: 3125464 (1964-03-01), Harmes
patent: 3143438 (1964-08-01), Campbell
patent: 3333311 (1967-08-01), Matheny et al.
patent: 3334389 (1967-08-01), Matheny

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