Back to results
US 10,220,868 B1Granted
Dolly with extendable wheel assemblies
AssigneeThe Boeing Company
InventorsWilliam Robert Clos, Douglas Alan Brown
Life of this patent
Estimating the term…
Abstract
A dolly assembly comprises a base, a plurality of pneumatic cylinders connected to the base, a plurality of wheel assemblies connected to the plurality of pneumatic cylinders, and a pressure relief mechanism. The base has an outer surface configured to support cargo. The pressure relief mechanism is configured to bleed pressure from the plurality of pneumatic cylinders when the base is oriented at or exceeding a set angle.
Claims20
A dolly assembly comprising:
- a base with an outer surface configured to support cargo;
- a plurality of pneumatic cylinders connected to the base;
- a plurality of wheel assemblies connected to the plurality of pneumatic cylinders;
- and
- a pressure relief mechanism configured to bleed pressure from the plurality of pneumatic cylinders when the base is oriented at or exceeding a set angle.
2 more elements
A dolly assembly comprising:
- a plurality of pneumatic cylinders;
- a plurality of wheel assemblies connected to the plurality of pneumatic cylinders;
- pathways configured to supply pressure from an air pressure inlet to the plurality of pneumatic cylinders to extend the plurality of wheel assemblies to a deployed position;
- and
- release pathways configured to bleed pressure from the plurality of pneumatic cylinders in response to the dolly assembly being oriented at or above a set angle to retract the plurality of wheel assemblies to a stored position.
2 more elements
A method comprising:
- introducing positive air pressure to a dolly assembly;
- extending a plurality of wheel assemblies of the dolly assembly using the positive air pressure to place the plurality of wheel assemblies in a deployed position;
- moving cargo secured to the dolly assembly using the plurality of wheel assemblies of the dolly assembly while the plurality of wheel assemblies is in the deployed position;
- and
- automatically retracting the plurality of wheel assemblies of the dolly assembly in response to the dolly assembly being oriented at or above a set angle.
2 more elements
Dependencies are inferred from the claim text.