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Publication numberUS2311877 A
Publication typeGrant
Publication dateFeb 23, 1943
Filing dateFeb 6, 1941
Priority dateFeb 6, 1941
Publication numberUS 2311877 A, US 2311877A, US-A-2311877, US2311877 A, US2311877A
InventorsAlexander Schelgunov
Original AssigneeAlexander Schelgunov
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tubular lamp fixture
US 2311877 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Feb. 23, 1,943. A. scHELGuNov TUBULAR LAMP FIXTURE Filed Feb. 6, 194] T--ITTHTW Geese@ sea- INVENTOR.

ATTORNEY.

Patented Feb. 23, 1943 UNITED STATES PATENT ori-ice TUBULAR LAMP FIXTURE Alexander Schelgunov, Cleveland, Ohio Application February 6, 1941, Serial No. 377,690

8 Claims.

This invention relates to lamp ixtures, and more particularly, to a new and improved socket construction for electric lamps of the `double-ended discharge type such as iiuorescent tubes.

It is among the objects of the present invention to provide a device for supporting tubular lamps so constructed that the lamp is securely held and cannot be accidentally displaced and yet may be easily and readily inserted into and removed from the device.

Another object of the invention is to provide a base and socket construction for tubular lamps which will hold a lamp rmly and securely without being itself rigidly attached to a support.

Another object of the present invention is to provide a new and improved base and socket construction for tubular lamps which is simple and compact in structure, relatively economical to manufacture and assemble, and attractive in appearance.

A further object of the invention is the provision of an improved device for supporting iluorescent lamps which incorporates a starter and an operating switch for the circuit conveniently, compactly and inconspicuously in the structure thereof.

'Ihese and other objects of the present invention will become apparent and better understood from the following detailed description taken in conjunction with the accompanying drawing, wherein like reference characters designate corresponding parts and wherein:

Figure 1 is a side elevational view of a tubular lamp fixture embodying sockets constructed according to this invention and having a tubular lamp supported thereby;

Figure 2 is an enlarged side view partly in section of one of the socket elements;

Figure 3 is a fragmentary partially exploded perspective View of the tubular lamp ilxture shown in Figure 1;

Figure 4 'is an enlarged side view partly in section of a modied socket construction for tubular lamps embodying a switch therein;

Figure 5 is an end elevational view of the socket structure illustrated in Figure 4.

With reference to the drawing and particularly to Figure 1, the tubular lamp fixture of the present invention comprises spaced socket members I and II supporting therebetween a tubular lamp I3. The socket members may be supported in any suitable manner; however, the construction preferably adapts itself to an in.

Each of the sockets I0 and II are generally of similar construction, differing in that the socket I0 embodies structure for accommodating an automatic starter member I8 employed with fluorescent lamps, whereas the socket I I includes a snap switch I9 of the usual construction for controlling the flow of electric current to the lamp. The two sockets with the foregoing exception being similar, it is believed that only one need be described in detail.

The socket Iii includes a substantially vtubular shell or housing 20 of insulating material having a closed end wall 2l through which extends a central opening 22 in which may be disposed the starter I8 or switch I9 as the case may be. The contact structure within the housing 2D comprises a pair of discs 23 and 2d spaced apart by a spacing member 25 and maintained in position by means of a pair of threaded bolts 26 extending through the end wall 2|. The face of the member 23`-is provided with a pair of spaced openings 2l through which are adapted to project the electrodes I5 of the lamp I3. The openings 2l have aligned therewith sleeves 28 extending outwardly from the rear face of the member 23 and adapted to receive the electrodes I5, which sleeves are provided with terminals 29. The opposed face of the member 24 is provided with suitable electrical contacts -30 which are adapted to be engaged by the terminals 3! of the starter I8. Current is conveyed from a suitable source of supply by means of conduits 32 passing through an opening 33 in the wall of the housing l0 into the interior thereof. The open end of the housing is formed with a counterbore providing a seat for a split resilient claw ring 34 which is provided with a plurality of spaced resilient detents 35. When the end of the tube I3 is inserted into the open end of the socket IIJ, the detents are adapted to engage within the groove I6 and bear against the flange I1 to prevent the accidental removal of the end of the tube from the socket. However, a force exerted longitudinally of thev tube will dislodge the detents from the grooves I6 and permit the end of the tube to be removed from the socket.

With reference to Figures 4 and 5, there is disclosed a modified type of socket 40 which may be employed when the sockets are permanently secured to a supporting member or xture. 'I'he socket 4l) comprises. a cylindrical housing 4| of insulating material having a closed end 42. The closed end 42 is provided with a central opening 43 through which extends suitable control mechanism for a switch 44. Mounted within the housing 4I is a base member 45 of insulating material, the forward end of which is circular in contour and forms a substantial transverse wall 46 in the housing, terminating in a. rearwardly extending supporting projection 46, The Wall 46 is provided wlth a pair of elongated slots 41 which are adapted to slidably receive the electrodes l of a lamp i3. The base 45 is maintained in xed position within the housing by means of a threaded screw 4B extending through the wall of the housing 4 I.

Secured to the upper surface of the base 45 are angulated terminals 49 which include upstanding spring jaws 50 aligned with openings 41 in the end wall 46. The screws 5| serve to attach the ends of suitable electrical wires or conduits to the terminals 49. The base 45 is provided with an upstanding lug 52 having a tapped opening 53 extending thereinto. The forward end of the housing 4I is diametrically split to provide a substantially semi-cylindrical cap 54 which is maintained in operative relation with respect to its complemental part of the housing 4i by means of a stud 55 threaded into the opening 53. An interlocking tongue and groove construction 56 on the cap 54 and projection 46 facilitates the positioning of the cap 54. A circumferential inwardly extending bead 51 formed on the housing 4i adjacent the open end thereof is adapted to engage within the groove I6 formed on the base member of the tubular lamp, to maintain the lamp Within the socket.

Having thus described my invention, what I desire to obtain by Letters Patent is defined in the appended claims.

What I claim is:

l. A socket for a tubular lamp having a tubular end base member including spaced contact prongs extending parallel to the axis of the lamp, said socket comprising a tubular housing adapted to slidably receive the base of said lamp, means extending radially inwardly from the inner wall of said housing and adapted to circumferentially engage the base of the lamp and maintain it against longitudinal displacement within said housing, a wall member having openings therethrough disposed intermediate the ends of said housing and adapted to receive said spaced contact prongs when said lamp base is positioned in said housing, and contacting members connected to electrical conduits adjacent said wall member and adapted to engage said spaced prongs.

2. A socket for a tubular lamp having a tubular end base member including spaced contact prongs extending parallel to the longitudinal axis of the lamp, comprising a tubular housing adapted to slidably receive the base of said lamp, yieldable means extending radially inwardly from the inner wall of said housing and adapted to frictionally engage at spaced circumferential points the base of the lamp and maintain it against longitudinal displacement within said housing, a wall member disposed intermediate the ends of said housing and having openings through which the spaced contact prongs extend when the lamp base is positioned in said housing, and contact members associated with said wall member and adapted to receive the spaced contact prongs and connect the same to electrical conduits leading to a suitable source of current supply.

3. A socket for a tubular lamp having a base including spaced contact prongs extending from the end thereof, said socket comprising a tubular housing having a removable wall portion adapted to be removed to allow the base to be received in said housing, means extending radially inwardly from the wall portion of said housing and adapted to circumferentially engage said base and maintain it against longitudinal displacement within said housing, a wall member having openings therethrough disposed in said housing and adapted to receive said spaced contact prongs when said lamp base is positioned in said housing, and contact members connected to electrical conduits adjacent said wall member and adapted to engage said spaced prongs.

4. A socket for a tubular lamp having a base including spaced contact prongs, said socket comprising a tubular housing having a removable wall portion to permit said base to be received in said housing, a slotted wall member disposed in said housing adapted to receive said spaced contact prongs when said lamp base is positioned in said housing, contact members connected to electrical conduits adjacent said slotted wall member and adapted to engage said spaced prongs, and means extending inwardly from the wall of said housing adapted to interenga ge with said base and maintain it against displacement within said housing.

5. A socket for a tubular lamp having a tubular end base member including spaced contact prongs extending parallel to the longitudinal axis of the lamp, said socket comprising a tubular member adapted to slidably receive the base of said lamp, yieldable means extending radially inwardly from the inner wall of said housing and adapted to frictionally engage at spaced circumferential points the base of the lamp and maintain it against longitudinal displacement within said housing, wall means intermediate said housing having openings for receiving said spaced contact prongs, contact members carried by said wall means in alignment with said openings and adapted to engage said prongs.

6. A socket for a tubular lamp including spaced contact prongs, said socket comprising a housing adapted to slidably receive the base of said lamp and having a removable wall portion, a base member disposed within said housing having a slotted face adapted to slidably receive said spaced contact prongs, contact members carried by said base member for engaging said spaced prongs. means extending inwardly from the inner wall of said housing to engage the base of the lamp and maintain it against displacement within said housing.

'7. A socket for a tubular lamp with a base including spaced contact prongs, said socket cornprising a housing adapted to slidably receive the base of said lamp, a yieldable member Within said housing adapted to frictionally engage said base and maintain it against longitudinal displacement within said housing, wall means disposed intermediate the ends of said housing, one of said wall means being formed with openings adapted to receive said contact prongs, contact members carried by said wall means adapted to engage said prongs when positioned in said openings. and the other of said Wall means provided with terings and adapted to interengage circumferen- 10 tially with said bases for holding the same against longitudinal displacement therefrom, wall means having openings therethrough disposed within said housings and adapted to receive the spaced contact prongs on the bases of said lamp, and contact members connected to electrical conduits adjacent said wail means and adapted to engage said spaced prongs.

ALEXANDER SCHELGUNOV.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2489686 *Aug 7, 1945Nov 29, 1949Suter Joseph LLamp mounting
US2534361 *Nov 16, 1946Dec 19, 1950Ludwig LouisFixture for fluorescent lamps
DE944388C *Apr 19, 1951Jun 14, 1956Busch Jaeger Duerener MetallFassung fuer elektrische Leuchtstofflampen mit einem gegebenenfalls in der Laengsrichtung des Fassungsgehaeuses ausziehbaren Isolierstoffsockel
DE970376C *Jun 27, 1950Sep 11, 1958Broekelmann Jaeger & BusseFassung fuer Leuchtstoffroehren-Lampen
Classifications
U.S. Classification439/231, 362/217.8, 439/242, 439/232, 362/217.17
International ClassificationH01R33/08, H01R33/05
Cooperative ClassificationH01R33/08
European ClassificationH01R33/08