New! View global litigation for patent families

US2279103A - Lamp unit - Google Patents

Lamp unit Download PDF

Info

Publication number
US2279103A
US2279103A US25365939A US2279103A US 2279103 A US2279103 A US 2279103A US 25365939 A US25365939 A US 25365939A US 2279103 A US2279103 A US 2279103A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
unit
reflector
lens
flange
lamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Charles W Anklam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
C M HALL LAMP CO
Original Assignee
C M HALL LAMP CO
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • F21S41/29

Description

April 7, 1942. c. w. ANKLAM LAMP UNIT Filed Jan.' 30, 1939 INVENTOR M A L K N A W S E R A H D Y B T4TTORNEYS Patented Apr. 7, 1942 LAlWP UNIT Charles W. Anklam, Detroit, Mich as signor to C. M. Hall Lamp Company, Detroit, Mich., a corporation of Michigan Application January 30, 1939, Serial 'No. 253,659

3 Claims. (01. zit-541.5)

In the present state of the art head lamps for motor vehicles are of various designs, such as streamlined casings which are distinct from the vehicle body and constructions arranged within axially extending flange'Cii which embraces the flanges D and E. The forward end of the flange G2 is then peened over the flange D'at G so as to tightly clamp the parts together and to the fender or other part of the body, so as to be 5 form a seal. a continuation of the lines thereof. With all of The unit just described is capable of being these various constructions the function permounted in various designs of external housings formed is essentially the same, which necessitates or incorporated in some part of the vehicle body, the use of certain elements in definite relation to as for instance the fender. Inasmuch, however, each other. Thus, there is a concave or parabolic as the light pattern should be exactly positioned reflector, a lamp bulb properly focused within vertically, horizontally and rotatively, it is necesthe reflector, and a lens for producing a predesary to provide positioning means on some portermined light pattern in the projected beam. tion of the unit. Such positioning means is pref- It is the primary object of the invention to erably placed on the ring G and as shown, lugs obtain a construction of light projecting unit H project from the flange G at predetermined adapted for incorporation in various designs of points. There is also preferably a boss H' surlamp casings. It is a further object to produce rounding each lug H for seating upon a bearing an exchangeable unit which when inoperative in the external housing J. The lens C is rotatively can be easily and quickly detached from the fixed in relation to the ring G, by means of an lamp casing and returned to the factory for reinwardly projecting lug I on the latter, engaging conditioning. Still further, it is an object to a notch in the peripheral flange D. Also, the obtain a construction of unit in which the delicate flange E of the reflector is similarly notched to parts, such as the polished reflector, are sealed in, engage the lug I to hold the same in rotatively to eflectively protect the same from injury by fixed relation to the lens. As the lamp bulb B is dust, moisture or handling. With these and other fixed to the reflector and exactly positioned in objects in view, the invention consists in the relatio thereto, the illuminating fi a t 01 construction as hereinafter set forth. filaments will be correctly positioned in relation In the drawing: to the lens. Thus, the lugs 1-1 when engaged with Figure 1 is a vertical central longitudinal secthe cooperat n S c s in e p Casing W111 tion through a lamp unit of my improved design; insure p p Positioning of the unit- Figure 2 is a rear elevation thereof; To facilitate manufacture the ring G is prefer- Figure 3 is a sectional perspective view of a ab y formed as a die casting of a metal sufiiportion of the unit, showing the manner of conciently soft for closing about the flange D. This nectmg the lens and reflector; closing operation also eifectively seals the parts Figure 4 1s a similar view from the opposite together so that the space Within the unit is Slde; protected from the entrance of either dust or Figtilggrle 5 1s a section taken on the hne 55 of moisture. When once sealed, the parts of the I unit cannot be disassembled until it is returned B r l l a sg nca p 'gge g a g r g i c cfi 4O to the factory or to some place provided with a being of g yp in which 2; fii lmnfagl 51 suitable tool for cutting the ring. It is, therement is exac u it t b g a fore, the intention that the unit should never be y pos 9 as 0 e Properly disassembled on the road, but merely exchanged oc s 1n the refiecter- C 1S a lens preferably for other units and that all work in reconditionconcavo-convex in general form and having difmg Should be performed at the factor ferent portions of its area fashioned with flutes and prisms to distribute the light in a predeterwhue I have descnbed my Improved as mined pattern The margin of the lens C is designed for a motor vehicle headlight, it is obviformed with an outwardly projecting flange or E t It may be apphcaim? to other uses F bead D with its rear face forming a seat for an or Instance as for talntght' The essentlal outwardly extending flange E on the reflector A. Tceature such cnstrllctlns is that the A sealing gasket F is placed between the flanges t contalmng the electnc bulb and the lens or D and E, and these parts are then secured to transparent cover for Said casing are connected each other by an annular member G. This is of and Sealed to each other by a surrounding substantially right angular cross section having s. which is t t d to embrace peripheral 55 portions thereof.

a flange G adjacent to the flange E, and an having a peripheral engagement with said reflector, an annular member having a notched engagement with the peripheries of said reflector and lens to hold all of said parts in predetermined relation to each other, said annular member effecting a sealing engagement between said parts, and locating means on said annular memher for positioning said unit in said lamp.

2. A light projecting unit for head lamps comprising a concave reflector, a light bulb nonrotatively secured within and having its filament in focus with said reflector, a, patterned lensv reflector and lens, a portion of said member being deformable to clamp and seal said lens and reflector to each other, and locating means on said annular member for positioning said filament in predetermined relation to said patterned lens and also positioning said unit in said lamp.

3. A permanently sealed light projecting unit for head lamps comprising a concave reflector, a light bulb non-rotatativelysecured within said reflector and provided with one or more filaments in focused relation thereto and an annusaid filament in predetermined relation to said lens, and positioning means for said unit in said head lamp.

, CHARLES W. ANKLAM.

US2279103A 1939-01-30 1939-01-30 Lamp unit Expired - Lifetime US2279103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2279103A US2279103A (en) 1939-01-30 1939-01-30 Lamp unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2279103A US2279103A (en) 1939-01-30 1939-01-30 Lamp unit

Publications (1)

Publication Number Publication Date
US2279103A true US2279103A (en) 1942-04-07

Family

ID=22961182

Family Applications (1)

Application Number Title Priority Date Filing Date
US2279103A Expired - Lifetime US2279103A (en) 1939-01-30 1939-01-30 Lamp unit

Country Status (1)

Country Link
US (1) US2279103A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2918570A (en) * 1957-07-15 1959-12-22 Gen Motors Corp Snap-in lens
US4213171A (en) * 1976-06-24 1980-07-15 Sassmannshausen Knut Lighting fixture with side escape window
FR2539486A1 (en) * 1983-01-18 1984-07-20 Saturnus Kovinsko Predelovalna Sealed vehicle headlamp unit mfr.
US4559589A (en) * 1980-02-13 1985-12-17 Sassmannshausen Knut Lighting fixture with a concave reflector, such as a tail, warning or signal light etc.
US4740875A (en) * 1987-05-07 1988-04-26 Gte Products Corporation Motor vehicle headlight having lens with glare prevention means
US5626413A (en) * 1995-11-06 1997-05-06 Adac Plastics, Inc. Headlamp assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2918570A (en) * 1957-07-15 1959-12-22 Gen Motors Corp Snap-in lens
US4213171A (en) * 1976-06-24 1980-07-15 Sassmannshausen Knut Lighting fixture with side escape window
US4559589A (en) * 1980-02-13 1985-12-17 Sassmannshausen Knut Lighting fixture with a concave reflector, such as a tail, warning or signal light etc.
FR2539486A1 (en) * 1983-01-18 1984-07-20 Saturnus Kovinsko Predelovalna Sealed vehicle headlamp unit mfr.
US4740875A (en) * 1987-05-07 1988-04-26 Gte Products Corporation Motor vehicle headlight having lens with glare prevention means
US5626413A (en) * 1995-11-06 1997-05-06 Adac Plastics, Inc. Headlamp assembly

Similar Documents

Publication Publication Date Title
US5081564A (en) Vehicular lighting device
US6722777B2 (en) Reflector for a light assembly, such as a taillight, a headlight, or an interior light, of a motor vehicle
US5692824A (en) Vehicular clearance lamp having improved lateral illumination
US4019045A (en) Socket mounting cap
US1466354A (en) Antiglare device for automobile headlights
US3588492A (en) Rectangular vehicle headlamp with collimating discs
US4142229A (en) Method of shaping a lamp beam
US5172972A (en) Motor vehicle headlamp
US20070133220A1 (en) Vehicle lighting device
US3598989A (en) Automotive headlight
US6280071B1 (en) Vehicular headlamp with integrated aiming bracket
US2260473A (en) Nonglare headlight bulb for automobiles
US5722768A (en) Lamp utilizing discharge bulb as light source and having reduced size
US5113320A (en) Spherically adjustable headlamp mounting system
US4760506A (en) Light bulb mounting structure in automotive lamp
US3017500A (en) Vehicle lamp
US2910577A (en) Vehicle headlamp mounting
GB2192370A (en) Internal rear view mirror for motor vehicles
US4047020A (en) Disguised emergency light
US4922398A (en) Automotive lamp assembly
US4206499A (en) Vehicle marker lamp
US4882660A (en) Headlamp assembly
US2253952A (en) Flashlight
US2266329A (en) Head lamp mounting
US4523262A (en) Headlight for an automotive vehicle