Vacuum driven light bulb changer

Details Vacuum driven light bulb changer Vacuum driven light bulb changer

2007-06-26

2007-06-26

Mackey, Patrick (Department: 3652)

Handling: hand and hoist-line implements

Utilizing fluid pressure

Venturi effect

C081S053110

Reexamination Certificate

active

11166507

ABSTRACT:
A vacuum driven light bulb changer. The device has a power source that energizes an electrical circuitry so that when the power switch is activated it energizes a motor that activates a vacuum pump. The activation of the vacuum pump draws air into the intake head on the vacuum cup. When the vacuum cup is place firmly against the outside surface of a light bulb, the vacuum creates a depressurized zone against the outside surface of the light bulb and the inside bottom surface of the vacuum cup allowing the turning of the light bulb.

REFERENCES:
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patent: 5902293 (1999-05-01), Liu
patent: 6170894 (2001-01-01), Baker et al.

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