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US 5,899,469 AGranted
Vehicle with lockable casters
OwnerDavid Alexander Pinto, Matthew Alexander Pintoinventors
Life of this patent
Estimating the term…
Abstract
A substantially rectangular vehicle moveable on four casters located in the four corners underneath the vehicle. The front or rear pair of casters can be locked or unlocked electronically by a single individual propelling the vehicle from one end to facilitate movement over irregular surfaces or narrow passages.
Claims6
A vehicle for transporting cargo comprising
- a substantially rectangular base having a front end, a rear end and two sides,
- two widely spaced casters located underneath the vehicle at both the front and rear ends of the vehicle said casters being freely rotatable horizontally about a vertical axis,
- means for locking the casters at the front or rear end of the vehicle to prevent such rotation of the casters while permitting caster wheels to roll in a direction parallel to the sides of the vehicle and
- means for substantially simultaneously unlocking the casters at the front or rear end of the vehicle to permit unrestricted movement of the vehicle in any side-to-side or front-to-rear direction wherein said means are powered electronically and can be actuated manually from one end of the vehicle by a single individual while propelling the vehicle without stopping or changing position.
1 more element
Dependencies are inferred from the claim text.