Manhole cover and frame work

Details Manhole cover and frame work Manhole cover and frame work

1978-03-30

1979-03-20

Byers, Jr., Nile C.

Road structure, process, or apparatus

Pavement

Vault cover-closure

52 20, 210164, E02D 2914

Patent

active

041451511

ABSTRACT:
A method for inhibiting movement between a load bearing access device, such as a manhole cover or catch basin grate and its supporting framework which involves drilling a plurality of vertical passageways at spaced apart intervals adjacent to the circumference of said access device, said passageways also extending into said supporting framework, and fixing vertical studs in said passageways.

REFERENCES:
patent: 889051 (1908-05-01), Schodde
patent: 1191497 (1916-07-01), Dauphinee
patent: 1384712 (1921-07-01), Shanley
patent: 2246390 (1941-06-01), Smith
patent: 2930295 (1960-03-01), Hale
patent: 3237538 (1966-03-01), McPheeters
patent: 3858998 (1975-01-01), Larsson

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