Self-powered, heat-activated LED vehicle exhaust tip assembly

Details Self-powered, heat-activated LED vehicle exhaust tip assembly Self-powered, heat-activated LED vehicle exhaust tip assembly

2006-12-26

2006-12-26

Philogene, Haissa (Department: 2821)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S228000, C136S203000, C136S204000, C315S318000, C315S169300, C403S374300, C403S379300

Reexamination Certificate

active

07152710

ABSTRACT:
A self-powered, heat-activated LED exhaust tip assembly (10) that is comprised of three major elements: a cylindrical enclosure (12), a heat conducting sub-assembly (80) and an electronics circuit (130). The sub-assembly (80) consists of an external heat conducting plate (82), and an enclosure-internal heat conductive horizontal structure (110) that is attached to the plate (82) through a heat conductive vertical rod (98). When heated vehicle exhaust gases pass through the enclosure (12), the gases heat the structure (110) and the heat is then transferred to the plate (92) via the rod (98). The heat from the plate (82) is transferred to a peltier device (132) that interfaces with the plate (82). The heated peltier device (132) produces a first d-c voltage (11) that is applied to a DC to DC converter (134), where a second d-c voltage (13) is produced. The output of the converter (134) is applied to an application specific integrated circuit (ASIC) (136) that produces a set of LED control signals that illuminate a set of LEDs.

REFERENCES:
patent: 4463214 (1984-07-01), Lowther
patent: 6006859 (1999-12-01), Hussaini
patent: 6238122 (2001-05-01), Brooks et al.
patent: 6459218 (2002-10-01), Boys et al.
patent: 6609590 (2003-08-01), Zelinski
patent: 7007720 (2006-03-01), Chase et al.

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