Trolley wheel assembly

Details Trolley wheel assembly Trolley wheel assembly

2007-12-04

2007-12-04

Ellis, Christopher P. (Department: 3618)

Land vehicles

Wheeled

Body with bracketed-type or nonsuspended axles

C280S033996, C280S033991, C280S687000, C280S791000, C280S183000, C280S183000

Reexamination Certificate

active

10474216

ABSTRACT:
A trolley includes a front wheel assemblie (12) and a rear wheel assembly both assemblies mounted on a trolley frame. The front wheel assembly (12) includes a fixed wheel assembly (24) to aid control of the trolley. In one form the front wheel assembly (12) includes a pair of swivel castors (18) and a fixed wheel assembly (24) disposed between the castors (18). The front wheel assembly (12) is designed so that when the castors (18) swivel from their orientation for forward travel, the fixed wheel assembly (24) is caused to be lifted off the ground. The trolley also includes a camming device which is operative to lift the front wheel assembly (12) off the ground when the trolley is moved into a nested configuration with a like trolley.

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patent: WO 9633900 (1996-10-01), None

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