Electricity: motive power systems – Control of both motor circuit and motor structure
Reexamination Certificate
2005-02-15
2005-02-15
Ip, Paul (Department: 2837)
Electricity: motive power systems
Control of both motor circuit and motor structure
C318S538000, C310S085000, C310S071000, C439S490000, C439S488000, C439S620040, C015S314000, C015S319000, C015S339000
Reexamination Certificate
active
06856113
ABSTRACT:
A central vacuum cleaning system has a motor in a motor housing in a canister with a receptacle. In the motor housing is a motor control circuit with a printed circuit board. The motor control circuit is mounted to the motor housing using a mounting post having a light guide. The mounting post receives light from a light source on the printed circuit board and guides the light through the mounting post to outside the motor housing. The mounting post can guide the light through structural or non-structural elements. The light provides illuminated information messages to a user. The mounting post has a low voltage connection section for receiving low voltage conductors from outside the motor housing. As the motor control circuit is within the motor housing, the motor housing is a motor control housing. The motor control housing can be separate from the motor housing.
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Cube Investments Limited
Dowell & Dowell , P.C.
Ip Paul
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