Trench shield handling assembly

Details Trench shield handling assembly Trench shield handling assembly

1996-03-19

1998-04-07

Graysay, Tamara L.

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

405272, 405157, 294 671, F02D 1710, B66C 100

Patent

active

057356424

ABSTRACT:
A rotatable trench shield handling assembly provided with upwardly extending excavator hook-engaging means. The rotatable trench shield handling assembly provided with rear downwardly extending trench shield wall engaging means and with an opposed forward transversely positioned horizontally oriented trench shield wall engaging guide stabilizer bar means which cooperates with the rear spaced apart trench shield wall engaging means to positively and easily engage the trench shield so as to enable the excavator operator to have positive control of the trench shield while lifting, handling, lowering, and selectively stacking the trench shield into its operative use position within a trench and subsequently removing the trench shield therefrom.

REFERENCES:
patent: 158434 (1875-01-01), Newcomb
patent: 1415090 (1922-05-01), Fitch
patent: 1587301 (1926-06-01), Itancey, Jr.
patent: 1919549 (1933-07-01), Fryslie
patent: 3606438 (1971-09-01), Pezzko
patent: 4358145 (1982-11-01), Svensson
patent: 4557630 (1985-12-01), Neil
patent: 4576542 (1986-03-01), Brasell et al.
patent: 4826228 (1989-05-01), Dinitz et al.
"The Rugged Ones" Griswold Machine and Engineering, Inc., Jul. 1976.

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