Hoist for construction material

Details Hoist for construction material Hoist for construction material

2007-06-12

2007-06-12

Kramer, Dean J. (Department: 3652)

Handling: hand and hoist-line implements

Hoistline attached load supporting frame

Load leveling or shifting

C294S067100, C294S067200

Reexamination Certificate

active

10549861

ABSTRACT:
A hoist for construction sites, for carrying loads suspended from a crane. The hoist is C shaped, suspended at its top arm by a cable of a crane. The bottom arm carries a hook, typically vertically movable, for lifting and moving loads about in the construction site. Owing to its lateral opening, the hoist can deliver loads into the interior space of floors, using minimal crew and relying mainly on the crane for maneuverability.

REFERENCES:
patent: 1591248 (1926-07-01), Tracy
patent: 2851170 (1958-09-01), McDonough
patent: 3521924 (1970-07-01), Wallenius
patent: 3879077 (1975-04-01), Celio
patent: 3998488 (1976-12-01), Durgan
patent: 4286817 (1981-09-01), Moritz
patent: 4950012 (1990-08-01), Jones
patent: 5431470 (1995-07-01), Magerl et al.

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