Method and means for repairing existing manhole

Details Method and means for repairing existing manhole Method and means for repairing existing manhole

1990-09-27

1991-05-21

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Forming structural installations in situ

Arched, domed, or vertical-cylindrical structure

249 10, 249 11, 249165, 249184, 249189, 264 35, 264 36, 264219, 264256, 264269, 425 11, 425 59, B28B 116, B28B 728, E02D 2912, E04G 1120

Patent

active

050173138

ABSTRACT:
A form assembly for casting a lining wall in an existing manhole includes a cylindrical lower form assembly, a circular horizontal form assembly, and a cylindrical upper form assembly. All three assemblies are formed of smaller segments which are assembled together within the manhole and which can be disassembled after the manhole has been repaired.

REFERENCES:
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Action Products Marketing Corporation, "Manhole Liner Designed to Save Big Bucks", Action Products Sales Flyer, 1985, pp. 1-4.

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