Boot guard for sewer manhole construction

Details Boot guard for sewer manhole construction Boot guard for sewer manhole construction

1984-02-08

1985-11-26

Friedman, Carl D.

Static structures (e.g., buildings)

Relatively yieldable preformed separator

Separator inserted prior to or during pouring of two...

52220, 285192, E04B 162

Patent

active

045547726

ABSTRACT:
A boot guard which is fitted onto the end of a sewer pipe for abutting engagement with the flexible seal between the sewer pipe and manhole side wall opening for protecting the flexibility of the joint seal and permitting easier removal of the sewer pipe for repair or replacement. The boot guard includes a generally half-circle, annular base portion having an undercut rectangular peripheral groove therein. A flexible securing band is fitted into the undercut groove and wrapped around the upper periphery of the sewer pipe for holding the base portion in place prior to concrete being poured into the bottom of the manhole construction. When concrete is poured into the bottom of the manhole construction, the boot guard prevents contact between the concrete and the flexible seal and also prevents contact between the concrete and the end of the sewer conduit.

REFERENCES:
patent: 3421551 (1969-01-01), Currier
patent: 3673644 (1972-07-01), Howlett et al.
patent: 3975799 (1976-08-01), Kerr

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