Bulk material transport vehicle access structure

Details Bulk material transport vehicle access structure Bulk material transport vehicle access structure

2006-11-28

2006-11-28

Thompson, II, Hugh B. (Department: 3634)

Fire escape, ladder, or scaffold

Platform with elevating or lowering means

Suspended

C182S141000

Reexamination Certificate

active

07140467

ABSTRACT:
A bulk material transport vehicle access structure includes an elongated service platform for workers which is pivotally supported at its opposite ends to cantilever arms on parallel horizontal axes to avoid binding between the roller carriages of the cantilever arms and a pair of support pillars. The floor of the platform includes a walkway and a doorway covered by a plurality of side by side doors which may be selectively opened. Electric controls are provided to automatically stop operation of the power means used to control the elevation of the cantilever arms should the service platform become tilted a predetermined extent. Electric controls are also provided to stop lowering of the service platform when it reaches the top of a bulk material transport vehicle.

REFERENCES:
patent: 1727671 (1929-09-01), Pott
patent: 2762659 (1956-09-01), Harlan et al.
patent: 3451504 (1969-06-01), Logan
patent: 3493079 (1970-02-01), Dudschus
patent: 3851728 (1974-12-01), Williams
patent: 3880256 (1975-04-01), Couris
patent: 4171033 (1979-10-01), Rust et al.
patent: 4222140 (1980-09-01), Olewinski et al.
patent: 4421209 (1983-12-01), Vermette et al.
patent: 4776429 (1988-10-01), Osborn
patent: 4962828 (1990-10-01), Duncan
patent: 5027922 (1991-07-01), Benko et al.
patent: 5042612 (1991-08-01), Bennett et al.
patent: 5392878 (1995-02-01), Bennett et al.
patent: 5555952 (1996-09-01), van Mol et al.
patent: 5555953 (1996-09-01), Henderson
patent: 5579865 (1996-12-01), Butler et al.
patent: 5671823 (1997-09-01), Oakes
patent: 6234272 (2001-05-01), Plentl, Jr.
patent: 6250426 (2001-06-01), Lombard

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