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A light bulb retention assembly for an automobile headlight includes an socket with an opening adapted to receive a light bulb, plural holes in the socket and around the opening that each have an end surface with an upper step and a lower step, plural pins that are each in a respective one of the ho

A light bulb retention assembly for an automobile headlight includes an socket with an opening adapted to receive a light bulb, plural holes in the socket and around the opening that each have an end surface with an upper step and a lower step, plural pins that are each in a respective one of the holes, where each of the pins has a head with a first underside part that bears against the upper step and a second underside part that is separated from the lower step by a gap, and a lock ring having plural latching parts that each rotationally fit into a respective gap. The socket has a sealing edge and the plural latching parts mate with the sealing edge to hold a seal therebetween.

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1. A light bulb retention assembly for an automobile headlight, comprising:a socket with an opening arranged and adapted to axially receive a light bulb and a lip arranged and adapted to receive a seal radially extended from an edge; retaining pins in said socket spaced from a surface of said socket

1. A light bulb retention assembly for an automobile headlight, comprising:a socket with an opening arranged and adapted to axially receive a light bulb and a lip arranged and adapted to receive a seal radially extended from an edge; retaining pins in said socket spaced from a surface of said socket so as to define retention crevices; and an annular lock ring that holds the light bulb in the socket and that has latching surfaces that rotationally mate with respective ones of the retention crevices to hold the lock ring on the socket, said lock ring overlapping said lip with the seal held in compression intermediate the lip and the lock ring. 2. The assembly of claim 1, wherein said lock ring further comprises plural pairs of two radially outward projections, wherein outer edges of said two radially outward projections in each of said pairs are attached to each other with a fence to which a respective one of said latching surfaces is inwardly attached.3. The assembly of claim 2, wherein said latching surface is a ramp with an elevated end attached to a radial side of one of said outward projections, an outer edge attached to said fence, and a lower end that is unattached so as to slideably receive an underside of a respective one of said retaining pins on said ramp.4. The assembly of claim 1, wherein said socket is adapted to receive a light bulb in a first direction, wherein said socket has plural pedestals that are spaced around said opening, each of said plural pedestals extending in a second direction opposite said first direction to a stepped top surface with an upper step and a lower step, said lower step being radially outward from said upper step.5. The assembly of claim 1, wherein edges of each said upper step are conformed to be within a fixed radius of said opening.6. A light bulb retention assembly, comprising:an annular socket defining an opening arranged and adapted to receive a light bulb, said socket having plural holes therein that each have a top surface with an upper step and a riser separating said upper step from a lower step, said riser defining a gap that is radially outward from said upper step, said socket having a sealing edge; plural fasteners that are each in a respective one of said holes, each of said fasteners having a head with a first underside part that bears against said upper step and a second underside part that is separated from said lower step by said gap; and a lock ring having plural latching parts that each fit into a respective said gap, each of said latching parts overlapping said sealing edge, and a radially extending seal held between the overlapping latching parts and the sealing edge. 7. The assembly of claim 6, wherein said holes are evenly spaced around a periphery of said opening.8. The assembly of claim 6, wherein each said riser is generally conformed to be within a fixed radius of said opening.9. The assembly of claim 6, wherein said opening has plural axially aligned, radially inward projections that are arranged and adapted to fit into corresponding slots in a light bulb inserted in said opening.10. The assembly of claim 6, wherein said fasteners are screws.11. A light bulb retention assembly, comprising:an annular socket defining an opening arranged and adapted to receive a light bulb, said socket having plural holes therein that each have a top surface with an upper step and a riser separating said upper step from a lower step, said riser defining a gap that is radially outward from said upper step, said socket having a sealing edge; plural fasteners that are each in a respective one of said holes, each of said fasteners having a head with a first underside part that bears against said upper step and a second underside part that is separated from said lower step by said gap; and a lock ring having plural latching parts that each fit into a respective said gap, each of said latching parts overlapping said sealing edge, wherein said lock ring further comprises plural pairs of two radially outward projections, wherein outer edges of said two radially outward projections in each of said pairs are attached to each other with a fence to which one of said latching parts is inwardly attached. 12. The assembly of claim 11, wherein each of said latching parts is a ramp with an elevated end attached to a radial side of one of said outward projections, an outer edge attached to said fence, and a lower end that is unattached so as to slideably receive said second underside part on said ramp.13. A light bulb retention assembly, comprising:a socket with an axially extended opening arranged and adapted to receive a light bulb and with an annular exterior lip that is arranged and adapted to receive a seal; plural axially aligned pins around said opening that are coupled to said socket, each of said plural pins having an overhanging head portion with a first part that bears axially against said socket and a second part that is diametrically opposite and radially outward from said first part and that is axially offset from said socket by a gap; and a lock ring having an annular wall with plural radially inward projections that are arranged and adapted to hold a light bulb in said opening and plural pairs of two spaced-apart radially outward projections, in each of said pairs of two radially outward projections, outer edges of said two radially outward projections are attached to each other with a fence to which is attached an inwardly extended latching face that is rotationally mated with a respective said gap to attach said lock ring to said socket, there being a space between said annular wall and said latching face that receives a respective said first part of said overhanging head portion, and wherein at least one of said fence and an underside of said latching face mates with said annular lip of said socket for holding a seal therebetween. 14. The assembly of claim 13, wherein said pins are screws.15. The assembly of claim 13, wherein said socket comprises plural axially aligned holes for receiving said pins, each of said holes having a stepped surface periphery that includes an upper step on which said first part bears and a riser that separates said upper step from a lower step and defines said gap.16. The assembly of claim 15, wherein said holes are evenly spaced around a periphery of said opening.17. The assembly of claim 13, further comprising an annular seal that is a flexible annular boot with an interior edge contacting said annular lip, and wherein one of said fence and an underside of said latching face holds said interior edge on said annular lip.18. The assembly of claim 13, wherein said latching face is a ramp with an elevated end attached to a radial side of one of said outward projections and a lower end that is unattached so as to slideably receive said second part of said overhanging head portion on said ramp.19. A light bulb retention assembly, comprising:an annular socket surrounding an opening arranged and adapted to receive a light bulb in a first direction, said socket having plural pedestals that are spaced around said opening, each of said plural pedestals extending in a second direction opposite said first direction to a stepped top surface with an upper step and a lower step, said lower step being radially outward from said upper step, said socket having a peripheral part for receiving a seal; plural retainers that each extend into said top surface of a respective one of said pedestals, each of said retainers having a head with a first underside part that bears against said upper step and a second underside part that is spaced from said lower step; and a lock ring having plural latching parts that each fit between a respective said lower step and a corresponding said second underside part, wherein a radially outward part of each of said latching parts is aligned with said peripheral part of said socket. 20. The assembly of claim 19, wherein said lock ring comprises plural pairs of two radially outward projections, wherein said two radially outward projections in each of said pairs are attached to each other with a respective one of said latching parts, and wherein each of said latching parts comprises a ramp with an elevated end attached to a radial side of one of said outward projections and a lower end that is unattached so as to slideably receive said second underside part on said ramp.