Illuminated knob assembly
First Claim
1. A control knob comprising:
- a front face bounded by a cylindrical sidewall;
a longitudinally oriented slot in said cylindrical sidewall;
a chamber formed radially inwardly adjacent from said longitudinally oriented slot;
a light pipe assembly of a first preselected color engaged within said chamber; and
a cap assembly of a second preselected color engaged with said light pipe assembly and including a bulbous portion extending through said longitudinally oriented slot in said cylindrical sidewall.
1 Assignment
0 Petitions
Accused Products
Abstract
The control knob includes a chamber into which a translucent polycarbonate jewel light pipe assembly of a first color, such as blue, and a translucent polycarbonate jewel cap of a second color, such as white, are inserted. The jewel cap is engaged against said jewel light pipe assembly and includes a bulbous portion which protrudes or stands proud through an axially oriented slot in the sidewalls of the control knob thereby forming an indicator for the control knob. In ambient illumination, such as during the day, the indicator appears to be the color of the jewel cap, such as white. However, when the dashboard is electrically illuminated, such as during the night, the illumination is collected by the jewel light pipe, and the color of the jewel light pipe assembly, such as blue or blue-green, is projected through the cap assembly and the indicator appears to be blue or blue green.
37 Citations
12 Claims
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1. A control knob comprising:
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a front face bounded by a cylindrical sidewall; a longitudinally oriented slot in said cylindrical sidewall; a chamber formed radially inwardly adjacent from said longitudinally oriented slot; a light pipe assembly of a first preselected color engaged within said chamber; and a cap assembly of a second preselected color engaged with said light pipe assembly and including a bulbous portion extending through said longitudinally oriented slot in said cylindrical sidewall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification