U.S. patent number 3,896,302 [Application Number 05/407,841] was granted by the patent office on 1975-07-22 for automotive spot lamps.
This patent grant is currently assigned to Lucas Electrical Company Limited. Invention is credited to George Joseph Whitney.
United States Patent |
3,896,302 |
Whitney |
July 22, 1975 |
**Please see images for:
( Certificate of Correction ) ** |
Automotive spot lamps
Abstract
An electrical lamp comprises a die cast, recessed body having an
integral bulb holder supporting a quartz iodine bulb. A reflector
carrying a sheet metal bulb shield is mounted in the body and
retained therein by spread-over posts extending from shoulders on
the body and passing through recesses in a rim of the reflector. A
lens cover overlies the recess in the body and reflector and is
adhesively secured within a recessed rim on the body. The above
electrical lamp is extremely economical to produce.
Inventors: |
Whitney; George Joseph
(Walsall, EN) |
Assignee: |
Lucas Electrical Company
Limited (Birmingham, EN)
|
Family
ID: |
10453667 |
Appl.
No.: |
05/407,841 |
Filed: |
October 19, 1973 |
Foreign Application Priority Data
|
|
|
|
|
Oct 18, 1972 [GB] |
|
|
49821/72 |
|
Current U.S.
Class: |
362/310; 362/341;
362/418 |
Current CPC
Class: |
F21S
41/323 (20180101); F21S 41/333 (20180101); F21V
15/01 (20130101); F21S 41/00 (20180101); F21S
41/172 (20180101); F21S 41/192 (20180101); F21S
41/28 (20180101); F21S 41/39 (20180101); F21S
41/47 (20180101); F21S 41/29 (20180101) |
Current International
Class: |
F21V
15/01 (20060101); F21V 15/00 (20060101); F21S
8/10 (20060101); F21m () |
Field of
Search: |
;240/41R,41BM,41B,13R,41.35R,41.3,46.47,7.1R,8.18,61.11,61.12,61.13 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Moses; Richard L.
Attorney, Agent or Firm: Holman & Stern
Claims
I claim:
1. An electrical lamp comprising a body functioning as a housing
for said lamp, said body having a recess therein; a bulbholder
integral with said body; a reflector mounted in said body; a buld
shield carried by said reflector; and a lens cover overlying said
recess in said body.
2. The electrical lamp according to claim 1, wherein said reflector
is provided with a rim having a plurality of recesses therein, and
a plurality of posts extending from shoulders integral with said
body pass through said recesses and are spread over to hold said
rim against said shoulders.
3. The electrical lamp according to claim 2, wherein said reflector
is further supported relative to said body by further shoulders
which are disposed around said bulb holder and which are integral
with said body.
4. The electrical lamp according to claim 1, wherein said bulb
shield comprises a sheet metal cover provided with a pair of sheet
metal legs having tags thereon which are respectively engaged in
slots on opposite sides of said reflector and deformed to secure
said bulb shield relative to said reflector.
Description
This invention relates to electrical lamps and has for its object
to provide an electrical lamp which is simple to assemble and
economical to manufacture.
According to the present invention, there is provided an electrical
lamp comprising a recessed body having an integral bulb holder, a
reflector mounted in the body and carrying a bulb shield, and a
lens cover overlying the recess in the body.
Preferably, the reflector is provided with a rim having a plurality
of recesses therein, and a plurality of posts extending from
shoulders integral with the body pass through the recesses and are
spread over to hold the rim against the shoulders.
Preferably also, the reflector is further supported relative to the
body by further shoulders which are disposed around the bulb holder
and which are integral with the body.
The bulb shield may comprise a sheet metal cover provided with a
pair of sheet metal legs having tags thereon which are respectively
engaged in slots on opposite sides of the reflector and turned over
to secure the bulb shield relative to the reflector.
An embodiment of the present invention will now be described, by
way of example, with reference to the accompanying drawings, in
which:
FIG. 1 is a sectional view of an electrical lamp according to the
present invention,
FIG. 2 is a side elevation of a reflector of the lamp of FIG.
1,
FIG. 3 is a longitudinal sectional view of a die cast recessed body
of the electrical lamp of FIG. 1, and
FIG. 4 is a plan view of the body of FIG. 3.
Referring to the drawings, the electrical lamp comprises a zinc
based die cast, recessed body 10 provided with an integral
bulbholder 11 supporting a quartz iodine bulb 12. The electrical
lamp further includes a reflector 13 mounted in the body 10 and
carrying a bulb shield 14. A lens cover 15 overlies the recess in
the body 10.
Referring now more particularly to FIGS. 2 to 4, the body 10 is
formed with a plurality of shoulders 16 adjacent a recessed rim 17
thereof and integral with the body 10. A post 18 extends integrally
from each shoulder 16. A rim 19 around the reflector 13 is provided
with a series of recesses 20 therein. In use, the rim 19 rests on
the shoulders 16 so that the posts 18 pass through the recesses 20.
In order to secure the reflector 13 relative to the body 10, the
ends of the posts 18 extending through the recesses 20 are spread
over so as to hold the rim 19 against the shoulders 16. The
reflector 13 is further located in position in the body 10 by means
of a plurality of further shoulders 21 which are spaced around the
bulbholder 11 and are integral with the body 10.
The bulb shield 14 comprises a generally cup-shaped sheet metal
cover having a pair of sheet metal legs 23 riveted to the arms
thereof. Each leg 23 is provided with a tag 24 thereon which
engages in a slot 25 in the adjacent side of the reflector 13.
Further tags 26 on each leg 23 abut against the adjacent side edge
of the reflector 13 so that the bulb shield 14 is firmly located in
position on the reflector 13.
The Lens cover 15 is formed of a transparent or translucent
plastics material and is provided with a rim 27 which is adhesively
secured within the recessed rim 17 of the body 10.
The body 10 is connected with a mounting bracket 28 via a pivot 29
whereby it can be pivotally mounted at a suitable location on a
motor vehicle.
The above described form of lamp is of relatively simple
construction and is easy and economic to manufacture whilst being
of reliable and robust construction.
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