Packerhead assembly

Details Packerhead assembly Packerhead assembly

1990-02-28

1992-01-14

Housel, James C.

Plastic article or earthenware shaping or treating: apparatus

Means withdrawing trowel type shaping member from within...

264312, 425427, B28B 2126

Patent

active

050805711

ABSTRACT:
A packerhead assembly for use in making concrete pipes. The packerhead assembly includes a rollerplate with rollers mounted thereto, and a long segmented longbottom assembly comprised of two substantially identical troweling members, one of which is inverted with respect to the other. The two troweling members combine to form an elongated troweling surface which allows the use of concrete mixes having high fluidity. The longbottom assembly also utilizes removable wear bands which limit the ingress of concrete material to the interior of the longbottom assembly. The wear bands are of particular value when utilizing highly fluid concrete mixes.

REFERENCES:
patent: 1895740 (1933-01-01), Ukropina
patent: 2751657 (1956-06-01), Holston
patent: 3632270 (1972-01-01), Baker et al.
patent: 3733163 (1973-05-01), Hermann
patent: 3746494 (1973-07-01), Gauger
patent: 4340553 (1982-07-01), Fosse
patent: 4540539 (1985-09-01), Crawford et al.

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