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US 7,130,190 B1Granted
Computer servicing cart
AssigneeSpan, Inc.
InventorWilliam Baker
Life of this patent
Estimating the term…
Abstract
A computer servicing cart containing one or more battery servicing compartments or modules for charging and storing batteries for electronic devices, such as computers, cellular phones, and PDAs. One or more computer servicing compartments or modules for charging and storing electronic devices, such as computers, cellular phones, and PDAs. One or more internal power supplies selectively connectable to at external electrical outlet. A power shedding control circuit to prevent the cart from overloading an external outlet.
Claims18
A computer servicing cart comprising:
- an outer cabinet;
- a first battery servicing compartment disposed in the outer cabinet for selectively charging one or more batteries;
- a first computer storage compartment disposed in the outer cabinet and including a first electrical outlet for selectively charging one or more computers;
- a first internal power supply for providing power to the at least the first battery servicing compartment;
- and
- a power shedding circuit including
- a current sensing device operable to be in electrical communication with an external electrical outlet, the current sending device including means for providing a signal indicative of a current drawn from the external electrical outlet,
- a first relay in electrical communication with the first internal power supply, the first relay including means for selectively connecting the first internal power supply to the first computer storage compartment, and
- a logic circuit in electrical communication with the current sensing device and the first relay, the logic circuit including means for operating the first relay based on a comparison of the current being drawn from the external electrical outlet as indicated by the signal to a predefined limit.
6 more elements
The computer servicing cart of 3 wherein:
- each shelf adjusts vertically;
- each shelf is tilted downward toward a back end at a predetermined angle;
- each shelf has a recessed portion near a front end adapted to facilitate insertion and removal of computers;
- and
- each shelf has a retainer adapted to guide an adapter cord to the computer.
2 more elements
A computer servicing cart comprising:
- a first battery servicing module for selectively charging one or more batteries;
- a first computer storage module including at least one electrical outlet for selectively charging one or more computers;
- a first internal power supply for providing power to the at least the first battery servicing module;
- and
- a power shedding circuit including
- a current sensing device operable to be in electrical communication with an external electrical outlet, the current sending device including means for providing a signal indicative of a current drawn from the external electrical outlet,
- a first relay in electrical communication with the first internal power supply, the first relay including means for selectively connecting the first internal power supply to the first computer storage module, and
- a logic circuit in electrical communication with the current sensing device and the first relay, the logic circuit including means for operating the first relay based on a comparison of the current being drawn from the external electrical outlet as indicated by the signal to a predefined limit.
5 more elements
Dependencies are inferred from the claim text.