Hydraulic and earth engineering – Earth treatment or control – Shoring – bracing – or cave-in prevention
Patent
1976-04-05
1979-05-15
Shapiro, Jacob
Hydraulic and earth engineering
Earth treatment or control
Shoring, bracing, or cave-in prevention
52166, E02D 574
Patent
active
041545540
ABSTRACT:
A first embodiment employs precast cementitious stretchers provided with cast in place connectors for anchor rod ends. A second embodiment employs stretcher panels fabricated of resilient sheet material and secured together by straps which reinforce to panels and provide connectors for anchor rod ends. Both embodiments incorporate deadman anchors formed with slot-like openings through which end plates on the rods may pass and which serve to secure the plates against removal from anchors when the rods are secured to the connectors of the stretchers.
REFERENCES:
patent: 1089842 (1914-03-01), Johnson
patent: 1739108 (1929-12-01), Weber
patent: 2149957 (1939-03-01), Dawson
patent: 3316721 (1967-05-01), Heilig
patent: 3861106 (1975-01-01), Erhart
Hilfiker Pipe Co.
Shapiro Jacob
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