US2473034A - Discharge lamp ballast assembly - Google Patents

Discharge lamp ballast assembly Download PDF

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Publication number
US2473034A
US2473034A US612274A US61227445A US2473034A US 2473034 A US2473034 A US 2473034A US 612274 A US612274 A US 612274A US 61227445 A US61227445 A US 61227445A US 2473034 A US2473034 A US 2473034A
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US
United States
Prior art keywords
ballast
discharge lamp
ballast assembly
lamp ballast
plate
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
US612274A
Inventor
Shaheen John
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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
Application filed by Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Priority to US612274A priority Critical patent/US2473034A/en
Application granted granted Critical
Publication of US2473034A publication Critical patent/US2473034A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/02—Ballasts

Definitions

  • This invention relates to an electric discharge lamp ballast assembly and more particularly to a supporting plate for assembling the parts of a ballast and to the mounting thereon of a condenser and a plurality of inductors.
  • An object of this invention is to provide a mounting for the parts of a ballast, said mounting to save substantial weight.
  • Another object of this invention is to provide an open type ballast with sufiicient ventilation to eliminate external heat.
  • Another object of this invention is to provide a ballast readily assembled and cheaper to produce commercially than ballasts heretofore assembled.
  • ballast may be protected by the usual method of impregnation, said method of sealing and impregnating the ballast depending upon the use of the device and its location with respect to the fixture.
  • the ballast may be sealed as a solid mass and impregnated with a resinous mixture or the parts may be coated individually, assembled, covered with a tarr substance and the entire ballast covered with a metal casing.
  • the latter method provides an explosion-proof device which will stand the test of use outside an appliance in all kinds of atmosphere.
  • Another feature of this invention is the position of the condenser outside the plurality of inductors, thus producing a device so much cooler than ballasts previously assembled that smaller units may be used. Furthermore, the elimination of considerable heat in the ballast prevents any melting of the potting compound and leakage resulting therefrom.
  • Figure 1 is a perspective view of the assembled ballast before being impregnated and sealed
  • Figure 2 is a perspective view of the metal plate on which are mounted the condenser at one end and the transformer and two reactors end to end on the inwardly projecting steps at the other end;
  • Figure 3 is a cross-sectional view of the plate showing the trough through which the wires pass to the terminal attachments.
  • the condenser l is mounted at one end of the supporting plate 2; the transformer 3 and the two reactors 4 are supported end to end on the inwardly projecting steps of the plate, thus allowing the lead wires to pass through the trough to the terminal plate 5.
  • the pins 6 On the terminal plate 5, are mounted the pins 6 for wire attachments.
  • the supporting plate On the supporting plate are placed projecting tabs l for fitting over the projecting. edges 8 of the condenser I, thus holding it firmly in place.
  • 9 and I ll represent slots in the supporting plate for attaching the ballast to the fixture.
  • the plate 2 is flanged longitudinally for holding the condenser and inductors in place and is further designed with inwardly projecting steps II on which the inductors rest.
  • the inductors form a duct for the wires to pass to the terminal plate.
  • the tabs 1 for holding the condenser firmly in place.
  • the slots 9 and It! for attaching the ballast to the fixture.
  • the tab 1 for holding the condenser is shown projecting from the plate.
  • the inductors By resting on the inwardly projecting steps II, the inductors form a duct 12 for wires.
  • the flanges l3 extend throughout the length of the plate.
  • a ballast assembly for electric discharge lamps comprising: a unitary elongated metal supporting piece having its bottom portion substantially flat and having upwardly-extending longitudinal flange portions along substantially its entire length and having along part only of its length a pair of re-entrant steps, each step extending upwardly from said bottom portion and inwardly from a flange portion, a plurality of inductors placed end to end and mounted between said flanges and resting on said steps to form a duct, and a condenser extending between the flanges and fixed to the bottom of said metal piece at the end of said pair of reentrant steps at the end of the duct.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Description

June 14, 1949, J SHAHEEN DISCHARGE LAMP BALLAST ASSEMBLY Filed Aug. 23,,1945
Jkmhtm szmm i BY: i!
ATTORN EY Patented June 14, 1949 DISCHARGE LAMP BALLAST ASSEMBLY John Shaheen, West Roxbury, Mass, assignor to Sylvania Electric Products 1110., Salem, Mass, a corporation of Massachusetts Application August 23, 1945, Serial No. 612,274
1 Claim. 1
This invention relates to an electric discharge lamp ballast assembly and more particularly to a supporting plate for assembling the parts of a ballast and to the mounting thereon of a condenser and a plurality of inductors.
An object of this invention is to provide a mounting for the parts of a ballast, said mounting to save substantial weight.
Another object of this invention is to provide an open type ballast with sufiicient ventilation to eliminate external heat.
Another object of this invention is to provide a ballast readily assembled and cheaper to produce commercially than ballasts heretofore assembled.
A feature of this invention is that the ballast may be protected by the usual method of impregnation, said method of sealing and impregnating the ballast depending upon the use of the device and its location with respect to the fixture. The ballast may be sealed as a solid mass and impregnated with a resinous mixture or the parts may be coated individually, assembled, covered with a tarr substance and the entire ballast covered with a metal casing. The latter method provides an explosion-proof device which will stand the test of use outside an appliance in all kinds of atmosphere.
Another feature of this invention is the position of the condenser outside the plurality of inductors, thus producing a device so much cooler than ballasts previously assembled that smaller units may be used. Furthermore, the elimination of considerable heat in the ballast prevents any melting of the potting compound and leakage resulting therefrom.
Other objects, advantages, and features of this invention will be apparent from the detailed description taken in conjunction with the accompanying drawings, in which:
Figure 1 is a perspective view of the assembled ballast before being impregnated and sealed;
Figure 2 is a perspective view of the metal plate on which are mounted the condenser at one end and the transformer and two reactors end to end on the inwardly projecting steps at the other end; and
Figure 3 is a cross-sectional view of the plate showing the trough through which the wires pass to the terminal attachments.
In Figure 1, the condenser l is mounted at one end of the supporting plate 2; the transformer 3 and the two reactors 4 are supported end to end on the inwardly projecting steps of the plate, thus allowing the lead wires to pass through the trough to the terminal plate 5. On the terminal plate 5, are mounted the pins 6 for wire attachments. On the supporting plate are placed projecting tabs l for fitting over the projecting. edges 8 of the condenser I, thus holding it firmly in place. 9 and I ll represent slots in the supporting plate for attaching the ballast to the fixture.
In Figure 2, the plate 2 is flanged longitudinally for holding the condenser and inductors in place and is further designed with inwardly projecting steps II on which the inductors rest. In conjunction with the part of the plate between the inwardly projecting steps ll the inductors form a duct for the wires to pass to the terminal plate. Furthermore, at the other end of the basic and supporting plate are the tabs 1 for holding the condenser firmly in place. At the ends of the supporting plate are the slots 9 and It! for attaching the ballast to the fixture.
In Figure 3, the tab 1 for holding the condenser is shown projecting from the plate. By resting on the inwardly projecting steps II, the inductors form a duct 12 for wires. The flanges l3 extend throughout the length of the plate.
What I claim is:
A ballast assembly for electric discharge lamps, said ballast assembly comprising: a unitary elongated metal supporting piece having its bottom portion substantially flat and having upwardly-extending longitudinal flange portions along substantially its entire length and having along part only of its length a pair of re-entrant steps, each step extending upwardly from said bottom portion and inwardly from a flange portion, a plurality of inductors placed end to end and mounted between said flanges and resting on said steps to form a duct, and a condenser extending between the flanges and fixed to the bottom of said metal piece at the end of said pair of reentrant steps at the end of the duct.
JOHN SHAHEEN.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,817,034 Hotchkin Aug. 4, 1931 2,109,725 Hart Mar. 1, 1938 2,145,546 Kingdom Jan. 31, 1939 2,158,868 Stacy May 16, 1939 2,372,083 Johansson et a1. Mar. 20, 1945
US612274A 1945-08-23 1945-08-23 Discharge lamp ballast assembly Expired - Lifetime US2473034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US612274A US2473034A (en) 1945-08-23 1945-08-23 Discharge lamp ballast assembly

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Application Number Priority Date Filing Date Title
US612274A US2473034A (en) 1945-08-23 1945-08-23 Discharge lamp ballast assembly

Publications (1)

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US2473034A true US2473034A (en) 1949-06-14

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553212A (en) * 1949-10-26 1951-05-15 Earnest T Rippetoe Electric house-heating apparatus
US2639319A (en) * 1949-05-27 1953-05-19 Gen Electric Universal sweep and high-voltage transformer
US3178622A (en) * 1964-03-26 1965-04-13 Gen Electric Electrical capacitor with thermal fuse
US3899632A (en) * 1973-10-23 1975-08-12 Materials Division General Ele Retrofit emergency lighting package
EP1251723A2 (en) * 2001-04-07 2002-10-23 TridonicAtco GmbH & Co. KG Ballast unit for light sources in lamp posts
DE102009009496B4 (en) 2008-03-05 2022-06-23 Tridonic Ag Control gear for lamps

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1817034A (en) * 1926-05-03 1931-08-04 Paul M Hotchkin Cove and other lighting system
US2109725A (en) * 1934-07-03 1938-03-01 Hart George Hegeman Electric switch
US2145546A (en) * 1935-09-09 1939-01-31 Square D Co Electric meter service appliance
US2158868A (en) * 1936-10-17 1939-05-16 Gen Electric Electric equipment
US2372083A (en) * 1941-12-05 1945-03-20 Anchor Mfg Co Equipment for electrical installations

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1817034A (en) * 1926-05-03 1931-08-04 Paul M Hotchkin Cove and other lighting system
US2109725A (en) * 1934-07-03 1938-03-01 Hart George Hegeman Electric switch
US2145546A (en) * 1935-09-09 1939-01-31 Square D Co Electric meter service appliance
US2158868A (en) * 1936-10-17 1939-05-16 Gen Electric Electric equipment
US2372083A (en) * 1941-12-05 1945-03-20 Anchor Mfg Co Equipment for electrical installations

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639319A (en) * 1949-05-27 1953-05-19 Gen Electric Universal sweep and high-voltage transformer
US2553212A (en) * 1949-10-26 1951-05-15 Earnest T Rippetoe Electric house-heating apparatus
US3178622A (en) * 1964-03-26 1965-04-13 Gen Electric Electrical capacitor with thermal fuse
US3899632A (en) * 1973-10-23 1975-08-12 Materials Division General Ele Retrofit emergency lighting package
EP1251723A2 (en) * 2001-04-07 2002-10-23 TridonicAtco GmbH & Co. KG Ballast unit for light sources in lamp posts
EP1251723A3 (en) * 2001-04-07 2005-05-04 TridonicAtco GmbH & Co. KG Ballast unit for light sources in lamp posts
DE102009009496B4 (en) 2008-03-05 2022-06-23 Tridonic Ag Control gear for lamps

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