Forklift upright assembly

Elevator – industrial lift truck – or stationary lift for vehicle – Industrial lift truck or required component thereof – Having extensible vertical guide for load support

Reexamination Certificate

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Details

C187S227000, C414S632000

Reexamination Certificate

active

07134527

ABSTRACT:
A mast apparatus that includes a cross member assembly that permits an operator to see through portions of the assembly is provided. The cross member assembly includes upper and lower horizontal members that are slanted for general alignment with the line of sight of the operator. Moreover, some vertical stiffener members are removed thereby allowing a line of sight between the upper and lower horizontal members. To maintain structural strength, vertical stiffener members are added in the center portion and at the location of couplers or mounts for attachment to the lift hydraulic jacks.

REFERENCES:
patent: 4365693 (1982-12-01), McVeen
patent: 4392554 (1983-07-01), Russey
patent: 5201629 (1993-04-01), Simpson et al.
patent: 5326217 (1994-07-01), Simpson et al.
patent: 6505710 (2003-01-01), Kato

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