Enclosed high-pressure electric discharge lamp structure with cable terminal
AssigneePatent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
InventorMichael Gassmann
Life of this patent
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Abstract
The double-ended lamp has a base at each end, one of which is connected to cable. To prevent scattering of the high-pressure lamp bulb in case of explosion for example due to improper handling before installation, it is enclosed within a transparent protective tube, secured at its ends by caps slipped over the respective bases. To hold the caps and hence the tube in place, and prevent rolling of the bulb enclosed by the tube in the tubular end caps, the connecting cable is passed out of one end base from the side and it is of such length that it can be stretched adjacent the tube enclosure of the lamp to the other base, to be there fastened by a cable connector to the base pin terminal by a wing nut, or the like.
Claims9
Double-ended, elongated high-pressure electric discharge lamp having a pair of terminals, a lamp base (4, 5) at either end of the lamp, the bases being connected to respective lamp terminals, a connecting pin or bolt (6) at one base (5), a connection cable (10) rigidly mounted to and connected to the other base (4) in combination with a removable protective transparent tube (7) of insulating material enclosing the lamp, end caps (8, 9) fitted over both ends of the lamp, at least one end cap (9) having a central opening, the pin or bolt (6) extending through one (19) of the caps, wherein
- the connection cable (10) is passed close to and along the outer wall surface of the tube in stretched condition and has a length to extend from said other base (4), up to the pin or bolt (6) of said one lamp base (5), said cable being detachably secured to the pin or bolt (6) immediately adjacent the respective end cap (9).
Dependencies are inferred from the claim text.