Adac Plastics, Inc.

Prince Corporation

Richard M Ferrell

Michael J Suman

Russell L Clark

A headlamp assembly comprising a reflector defining an open front end, a lens adapted to close the open front end of the reflector to form a lamp chamber, a bulb mounted in the lamp chamber, and a mounting structure. The reflector and lens define respective annular flange portions which are seated together at an interface and the mounting structure is formed as an injection molding including an annular main body housing portion surrounding the reflector and an annular seal portion at the inner periphery of the main body portion encapsulating the seated together flange portions so as to seal the interface between the flange portions and seal the lamp chamber. Sealing of the lamp chamber is further facilitated by the provision of a series of annular grooves in the reflector flange portion and a series of annular ribs in the lens flange portion sized to fit in the respective annular grooves in the reflector flange portion.

Headlamp assembly

A lamp especially designed for use with plasma discharge light sources such as neon tubes. The lamp provides secondary reflective surfaces to ensure that each ray of light leaving the neon tube strikes at least one metallic reflective surface so as to reduce the troublesome RF characteristic of the neon tube and reduce the interference with other electronic equipment on board the vehicle.

Plasma discharge lamp

A lamp especially suitable for use as a headlamp in a motor vehicle. The lamp includes a lamp housing, a lens sealed to the housing and coacting with the housing to define a sealed chamber, and a lightbulb positioned in the chamber and operative to generate light within the chamber for projection through the lens to a location to be illuminated. The lamp further includes a compensator mechanism which is operative in response to variations in chamber temperature to compensatingly vary the chamber volume whereby to maintain an essentially constant pressure in the chamber irrespective of changes in the chamber temperature resulting from ambient temperature changes or from energization and de-energization of the lightbulb. In one disclosed embodiment the compensator mechanism comprises a bellows positioned exteriorally of the chamber and a conduit interconnecting the bellows and the chamber. In another disclosed embodiment the compensator mechanism comprises a collapsible bag positioned in the sealed chamber and vented to atmosphere so that the bag may expand and contract in response to temperature variations. Maintaining a substantially constant pressure in the sealed chamber prolongs the life of the seal between the lamp housing and the reflector and thereby prolongs the useful life of the lamp.

Motor vehicle lamp with improved ventilating means

A vehicle includes a mirror mounted near the roof for reflecting an image generated by a display source. The display source and mirror are shaped and positioned to provide a virtual image of the image generated by the display source which is focused at infinity.

Growing community of inventors

Livonia, MI, United States of America

Richard M Ferrell