Truss boom

Details Truss boom Truss boom

1984-08-23

1985-09-10

Blix, Trygve M.

Traversing hoists

Having means facilitating assembly or disassembly

Of boom sections

212267, 414724, B66F 336

Patent

active

045400962

ABSTRACT:
A truss boom having an extension member equipped with a pulley and a hook, comprising a pyramidal support frame is disclosed.

REFERENCES:
patent: 368955 (1887-08-01), Lacey
patent: 1539546 (1925-05-01), Deenik
patent: 3021014 (1962-02-01), Korensky et al.
patent: 3249238 (1966-05-01), Hedeen et al.
patent: 3698569 (1972-10-01), Lamer et al.
patent: 3788492 (1974-01-01), Kraft
patent: 4002242 (1977-01-01), Eriksson
patent: 4159059 (1979-06-01), Christenson et al.
patent: 4200423 (1980-04-01), Sornsin
patent: 4251181 (1981-02-01), Drott et al.

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