US3035164A - Housing for discharge tube - Google Patents

Housing for discharge tube Download PDF

Info

Publication number
US3035164A
US3035164A US667146A US66714657A US3035164A US 3035164 A US3035164 A US 3035164A US 667146 A US667146 A US 667146A US 66714657 A US66714657 A US 66714657A US 3035164 A US3035164 A US 3035164A
Authority
US
United States
Prior art keywords
housing
spring
discharge tube
tube
neck
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
US667146A
Inventor
Raymond J Thomas
Michael G Tesi
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.)
Engelhard Hanovia Inc
Original Assignee
Engelhard Hanovia 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 Engelhard Hanovia Inc filed Critical Engelhard Hanovia Inc
Priority to US667146A priority Critical patent/US3035164A/en
Application granted granted Critical
Publication of US3035164A publication Critical patent/US3035164A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
    • F21V19/008—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/04—Resilient mountings, e.g. shock absorbers 
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0005—Fastening of light sources or lamp holders of sources having contact pins, wires or blades, e.g. pinch sealed lamp

Definitions

  • the present invention relates to a housing for discharge tubes and, more specically, provides a housing wherein the tube is suspended inside of the housing.
  • the housing has a substantially helical spring enclosed inside of its end portion, one end of the spring bearing against the housing and the other end bearing against the discharge tube.
  • FIG. 1 is a longitudinal and fragmentary section through one embodiment of the invention and FIG. 2 represents a longitudinal and fragmentary section through another embodiment of the invention.
  • the housing for discharge tubes as shown in FIG. 1 consists of a cylinder 4 of material transmissive to the radiation produced by the discharge tube 6, e.g., glass.
  • the end portion of the housing comprises a metal sleeve 8 which envelops the cylinder 4, a disc 10 of heat resistant, eg., ceramic, material affixed to the sleeve 8 and a metal ferrule 12 inserted tightly into the disc 10.
  • An opening 14 in the ferrule is provided for electrically connecting the discharge tube 6, all electrical parts not being shown.
  • a substantially helical spring 16 is provided inside of the described end portion of the housing, the main portion of the spring enveloping the lead-in neck 18 of the tube 6 and being located within the ferrule 12. At both ends, the spring 16 terminates into at spirals, the outer spiral 2i) being of decreasing diameter and enclosing the bottom portion of the lead-in neck 18, while the inner spiral 22 is of increasing diameter and follows the shoulder formed by the ferrule 12 and the disc 10.
  • the embodiment of the invention as shown in FIG. 2 is more particularly intended for discharge tubes operating with higher currents, the tube being at a comparatively greater distance from the housing.
  • the end portion of the housing consists of a cup-shaped end enclosure 24, made from heat resistant, e.g., ceramic, material and provided with a ange 26.
  • the ange 26 is axed to a metal sleeve 27 and holds a collar 28 of heat resistant material axially movable in a circular recess 39. into the space between the edge of the collar 28 and the wall of the recess 30, tabs 32 of spring material can be inserted and attached to the collar 28.
  • a metal Washer 34 is mounted which holds the last spiral of a spring 35 in a circular groove 36 in the face of the washer.
  • the dimensions of the housing are chosen in such a Way that, according to the embodiment represented in FG. l, the yspring 16 is slightly extended while the spring of FIG. 2 is subject to compression.
  • tubes of slight differences in length can be mounted into the same housing wherein they are suspended and protected against mechanical shock. At the same time, heat conduction from the discharge tube -to the housing is greatly reduced and the warm-up time of the tube shortened.
  • a mounting assembly for discharge tubes having an envelope which terminates in at least one lead-in neck joined to the envelope along a circular area, an annular collar mounted around the lead-in neck adjacent said circular area, a housing surrounding said lead-in neck and said collar, a helical compression spring having a resilient center portion and bearing with its outer end against said housing, the inner end of the spring bearing against said collar to lend resilient support to the discharge tube, substantially the entire length of the lead-in neck being freely enveloped by the resilient portion of said helical compression spring to permit axial displacements of the neck within the spring helix, and a plurality of springs engaging the periphery of the collar and bearing against the inner Wall of the housing to maintain the collar substantially centered within the housing.
  • means comprising a generally cylindrical lead-in neck secured to one end of said discharge tube for providing a first spring bearing surface on the end of said tube which extends substantially perpendicularly to the axis of said tube, a housing surrounding said lead-in neck, said housing terminating in a tubular end portion of restricted diameter to form a circular shoulder constituting a second bearing surface, and a helical spring, the inner end of the spring terminating in an enlarged dat spiral which bears against said shoulder as the second bearing surface, the outer end of the spring terminating in a diminishing flat spiral which bears against the rst bearing surface at the outer end of the lead-in neck, said spring extending between said bearing surfaces and freely enveloping said lead-in neck over their longitudinally coextensive lengths.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Description

R. J. THOMAS ETAL 3,035,164
HOUSING FOR DISCHARGE TUBE May 15, 1962 Filed June 2l, 1957 INVENTORS RAYMOND J. THOMAS MICHAEL @,TES!
KM@ HM am ATTORN YS United States Patent 3,035,164 HOUSING FOR DISCHARGE TUBE Raymond J. Thomas, New Brunswick, and Michael G. Tesi, Nutley, NJ., assignors to Engelhard Hanovia, Inc., a corporation of New Jersey Filed June 21, 1957, Ser. No. 667,146 2 Claims. (Cl. 240-11.4)
The present invention relates to a housing for discharge tubes and, more specically, provides a housing wherein the tube is suspended inside of the housing.
In accordance With the invention, the housing has a substantially helical spring enclosed inside of its end portion, one end of the spring bearing against the housing and the other end bearing against the discharge tube. Thereby heat conduction from the tube to the housing is greatly reduced, the warm-up time decreases and the tube reaches its operating voltage more quickly. Further, the tube suspended between -springs inside of the housing is eiciently protected against mechanical shocks and tubes of slight diierences of length can be mounted into the same housing.
The invention will be further illustrated by reference to the accompanying drawings, in which FIG. 1 is a longitudinal and fragmentary section through one embodiment of the invention and FIG. 2 represents a longitudinal and fragmentary section through another embodiment of the invention.
The housing for discharge tubes as shown in FIG. 1 consists of a cylinder 4 of material transmissive to the radiation produced by the discharge tube 6, e.g., glass. The end portion of the housing comprises a metal sleeve 8 which envelops the cylinder 4, a disc 10 of heat resistant, eg., ceramic, material affixed to the sleeve 8 and a metal ferrule 12 inserted tightly into the disc 10. An opening 14 in the ferrule is provided for electrically connecting the discharge tube 6, all electrical parts not being shown.
inside of the described end portion of the housing, a substantially helical spring 16 is provided, the main portion of the spring enveloping the lead-in neck 18 of the tube 6 and being located within the ferrule 12. At both ends, the spring 16 terminates into at spirals, the outer spiral 2i) being of decreasing diameter and enclosing the bottom portion of the lead-in neck 18, while the inner spiral 22 is of increasing diameter and follows the shoulder formed by the ferrule 12 and the disc 10.
The embodiment of the invention as shown in FIG. 2 is more particularly intended for discharge tubes operating with higher currents, the tube being at a comparatively greater distance from the housing.
The end portion of the housing consists of a cup-shaped end enclosure 24, made from heat resistant, e.g., ceramic, material and provided with a ange 26. The ange 26 is axed to a metal sleeve 27 and holds a collar 28 of heat resistant material axially movable in a circular recess 39. into the space between the edge of the collar 28 and the wall of the recess 30, tabs 32 of spring material can be inserted and attached to the collar 28. Upon the lead-in neck 18 and adjacent to the outer surface of the collar 28, a metal Washer 34 is mounted which holds the last spiral of a spring 35 in a circular groove 36 in the face of the washer. At the other end thereof, the
Mice
spring bears against the bottom of the end enclosure 24.
The dimensions of the housing are chosen in such a Way that, according to the embodiment represented in FG. l, the yspring 16 is slightly extended while the spring of FIG. 2 is subject to compression. In both cases, tubes of slight differences in length can be mounted into the same housing wherein they are suspended and protected against mechanical shock. At the same time, heat conduction from the discharge tube -to the housing is greatly reduced and the warm-up time of the tube shortened.
It will be obvious to those skilled in the art that many modifications may be made within the scope of the present invention without departing from the spirit thereof and the invention includes all such modifications.
What is claimed is:
l. In a mounting assembly for discharge tubes having an envelope which terminates in at least one lead-in neck joined to the envelope along a circular area, an annular collar mounted around the lead-in neck adjacent said circular area, a housing surrounding said lead-in neck and said collar, a helical compression spring having a resilient center portion and bearing with its outer end against said housing, the inner end of the spring bearing against said collar to lend resilient support to the discharge tube, substantially the entire length of the lead-in neck being freely enveloped by the resilient portion of said helical compression spring to permit axial displacements of the neck within the spring helix, and a plurality of springs engaging the periphery of the collar and bearing against the inner Wall of the housing to maintain the collar substantially centered within the housing.
2. In a mounting arrangement for a discharge tube having a longitudinal axis, means comprising a generally cylindrical lead-in neck secured to one end of said discharge tube for providing a first spring bearing surface on the end of said tube which extends substantially perpendicularly to the axis of said tube, a housing surrounding said lead-in neck, said housing terminating in a tubular end portion of restricted diameter to form a circular shoulder constituting a second bearing surface, and a helical spring, the inner end of the spring terminating in an enlarged dat spiral which bears against said shoulder as the second bearing surface, the outer end of the spring terminating in a diminishing flat spiral which bears against the rst bearing surface at the outer end of the lead-in neck, said spring extending between said bearing surfaces and freely enveloping said lead-in neck over their longitudinally coextensive lengths.
References Cited in the file of this patent UNITED STATES PATENTS 1,044,757 Decker et al Nov. 19, 1912 1,938,001 Wilson Dec. 5, 1933 2,003,342 Cavanaugh June 4, 1935 2,118,437 Kayatt May 24, 1938 2,130,768 Kresge Sept. 20, 1938 2,375,807 Miller May 15, 1945 2,654,870 Miller Oct. 6, 1953 FOREIGN PATENTS 1,016,242 France Aug. 20, 1952 1,092,510 France Nov. 10, 1954
US667146A 1957-06-21 1957-06-21 Housing for discharge tube Expired - Lifetime US3035164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US667146A US3035164A (en) 1957-06-21 1957-06-21 Housing for discharge tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US667146A US3035164A (en) 1957-06-21 1957-06-21 Housing for discharge tube

Publications (1)

Publication Number Publication Date
US3035164A true US3035164A (en) 1962-05-15

Family

ID=24676986

Family Applications (1)

Application Number Title Priority Date Filing Date
US667146A Expired - Lifetime US3035164A (en) 1957-06-21 1957-06-21 Housing for discharge tube

Country Status (1)

Country Link
US (1) US3035164A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2340505A1 (en) * 1976-02-09 1977-09-02 Howe Arnold Lighting fitting for elongated light source - has transparent light scattering envelope and base with electrical connections
US4918582A (en) * 1987-12-16 1990-04-17 F.L. Industries, Inc. Mating terminal and socket assembly
US5569042A (en) * 1995-02-27 1996-10-29 Appleton Electric Company Light fixture with safety sockets

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1044757A (en) * 1911-02-20 1912-11-19 Fred H Decker Vacuum-bottle.
US1938001A (en) * 1929-07-05 1933-12-05 Metlox Corp Ltd Vacuum tube electrode socket
US2003342A (en) * 1932-07-30 1935-06-04 Claude Neon Displays Inc Lighting apparatus
US2118437A (en) * 1936-03-09 1938-05-24 Philip J Kayatt Electric luminescent gas tube protective device
US2130768A (en) * 1936-05-29 1938-09-20 Harry L Kresge Electrode terminal
US2375807A (en) * 1941-10-17 1945-05-15 Samuel C Miller Adapter and insulator construction for interior illumination
FR1016242A (en) * 1950-02-13 1952-11-05 D App Pour L Eclairage Schrede Lighting fixture
US2654870A (en) * 1949-07-13 1953-10-06 Rosalie E Miller High-voltage electrode housing and terminal assembly for gaseous discharge tubes
FR1092510A (en) * 1953-10-28 1955-04-22 Acec Support for tubular lamps

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1044757A (en) * 1911-02-20 1912-11-19 Fred H Decker Vacuum-bottle.
US1938001A (en) * 1929-07-05 1933-12-05 Metlox Corp Ltd Vacuum tube electrode socket
US2003342A (en) * 1932-07-30 1935-06-04 Claude Neon Displays Inc Lighting apparatus
US2118437A (en) * 1936-03-09 1938-05-24 Philip J Kayatt Electric luminescent gas tube protective device
US2130768A (en) * 1936-05-29 1938-09-20 Harry L Kresge Electrode terminal
US2375807A (en) * 1941-10-17 1945-05-15 Samuel C Miller Adapter and insulator construction for interior illumination
US2654870A (en) * 1949-07-13 1953-10-06 Rosalie E Miller High-voltage electrode housing and terminal assembly for gaseous discharge tubes
FR1016242A (en) * 1950-02-13 1952-11-05 D App Pour L Eclairage Schrede Lighting fixture
FR1092510A (en) * 1953-10-28 1955-04-22 Acec Support for tubular lamps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2340505A1 (en) * 1976-02-09 1977-09-02 Howe Arnold Lighting fitting for elongated light source - has transparent light scattering envelope and base with electrical connections
US4918582A (en) * 1987-12-16 1990-04-17 F.L. Industries, Inc. Mating terminal and socket assembly
US5569042A (en) * 1995-02-27 1996-10-29 Appleton Electric Company Light fixture with safety sockets

Similar Documents

Publication Publication Date Title
US4013335A (en) Lamp caps for halogen lamps and the like
US5055735A (en) High pressure discharge lamp having improved containment structure
US2280980A (en) Electron discharge device
US3035164A (en) Housing for discharge tube
US5369329A (en) Short arc lamp electrode rod supports
US2406271A (en) Base for electric lamps or similar devices
GB870190A (en) Electrodes for electron gun unit
GB950283A (en) Improvements in or relating to electric incandescent lamps
US4854888A (en) Lamp base
US2348216A (en) Electron discharge device mount spacer
US2258074A (en) Flashlight
US2859383A (en) Thermal conducting tube shield
US2080919A (en) Gaseous electric discharge device
US1800037A (en) Tubular incandescent lamp
US3002076A (en) Electrical heater unit
US2963603A (en) Discharge device
US2692154A (en) Electric lamp base construction
US2425864A (en) Filament supporting structure for incandescent lamps
US3518480A (en) Arc lamp construction
US2217418A (en) Electric discharge tube
US2354642A (en) Shockproof base
US2277633A (en) Electric lamp and mounting
US2733363A (en) Arc tube mount
US2372208A (en) Gaseous discharge tube
US2030392A (en) Manufacture of electric discharge tubes