US3334259A - Shadow mask mounting structure - Google Patents

Shadow mask mounting structure Download PDF

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Publication number
US3334259A
US3334259A US374587A US37458764A US3334259A US 3334259 A US3334259 A US 3334259A US 374587 A US374587 A US 374587A US 37458764 A US37458764 A US 37458764A US 3334259 A US3334259 A US 3334259A
Authority
US
United States
Prior art keywords
studs
spring
electrode
panel
mask
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
US374587A
Other languages
English (en)
Inventor
Terry M Shrader
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.)
RCA Corp
Original Assignee
RCA Corp
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 RCA Corp filed Critical RCA Corp
Priority to US374691A priority Critical patent/US3335479A/en
Priority to US374755A priority patent/US3308327A/en
Priority to US374587A priority patent/US3334259A/en
Priority to US409261A priority patent/US3296625A/en
Priority to US409190A priority patent/US3296477A/en
Priority to GB25029/65A priority patent/GB1084588A/en
Priority to GB22902/65A priority patent/GB1109001A/en
Priority to DE19651514352 priority patent/DE1514352B1/de
Priority to GB24151/65A priority patent/GB1115313A/en
Priority to FR19827A priority patent/FR1435690A/fr
Priority to FR19828A priority patent/FR1435691A/fr
Priority to DK289565AA priority patent/DK121388B/da
Priority to DK289365AA priority patent/DK122553B/da
Priority to FR20019A priority patent/FR1436440A/fr
Priority to ES0314049A priority patent/ES314049A1/es
Priority to ES0314048A priority patent/ES314048A1/es
Priority to DE19651789070 priority patent/DE1789070C2/de
Priority to DE1965R0040845 priority patent/DE1288691C2/de
Priority to SE7731/65A priority patent/SE308735B/xx
Priority to DER40856A priority patent/DE1286540B/de
Priority to SE7730/65A priority patent/SE306350B/xx
Priority to FR20410A priority patent/FR1436497A/fr
Priority to NL656507481A priority patent/NL148182B/xx
Priority to DE19651437838 priority patent/DE1437838B2/de
Priority to DK295065AA priority patent/DK118513B/da
Priority to DK295165AA priority patent/DK121523B/da
Priority to BE665322A priority patent/BE665322A/xx
Priority to BE665326D priority patent/BE665326A/xx
Priority to AT528965A priority patent/AT257706B/de
Priority to BE665321A priority patent/BE665321A/xx
Priority to NL656507483A priority patent/NL148436B/xx
Priority to NL656507480A priority patent/NL145094B/xx
Priority to BE665325A priority patent/BE665325A/xx
Priority to GB6359/68A priority patent/GB1120332A/en
Priority to GB19471/65A priority patent/GB1120331A/en
Priority to NL656507566A priority patent/NL139147B/xx
Application granted granted Critical
Publication of US3334259A publication Critical patent/US3334259A/en
Priority to DK266769AA priority patent/DK119215B/da
Priority to DK391870AA priority patent/DK120809B/da
Priority to NL727200523A priority patent/NL149632B/xx
Priority to NL737305215A priority patent/NL143366B/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/06—Screens for shielding; Masks interposed in the electron stream
    • H01J29/07—Shadow masks for colour television tubes
    • H01J29/073—Mounting arrangements associated with shadow masks

Definitions

  • This invention relates to cathode ray tubes and particularly to the structure and fabrication of an electrode therefor wherein apertured spring support straps are attached to the electrode and disposed over a plurality of support studs for removably mounting the electrode.
  • an electrode of substantially the same size as the phosphor screen of the tube is mounted closely adjacent to the screen.
  • the shadow mask cathode ray tube for producing images in color includes a multiapertured masking electrode which may be spaced about /2-inch from a mosaic phosphor screen.
  • the commercially available RCA 2lFBP22 is such a tube.
  • the envelopes of tubes which have an electrode mounted adjacent to the screen usually include a shallow bowl-like glass faceplate panel sealed to a glass funnel member.
  • the faceplate panel comprises a curved faceplate portion on which the phosphor screen is disposed and a peripheral sidewall portion.
  • a plurality of studs are sealed into or onto the internal surface of the sidewall of the panel.
  • the mask electrode is removeably mounted on the studs by a plurality of strap-1ike springs which are attached to the mask and which have apertures therein into which the studs fit.
  • Another object of this invention is the provision of an improved mounting spring for a shadow mask'electrode.
  • a shadow mask electrode such as described above is positioned within a faceplate panel and spaced from the faceplate thereof preferably by a spacer device interposed therebetween.
  • the panel includes a plurality of suitable electrode support studs extending inwardly thereof.
  • One or more apertured spring elements are then placed over their associated studs and then fixed to the electrode such as by welding.
  • the apertured spring element constitutes a part only of the complete spring and comprises a washer whose aperture is adapted to snugly receive a stud therein.
  • a separate spring strap with an aperture at one end larger than the stud is provided which is welded at the other end to the frame.
  • the washer is welded to the apertured end of the spring strap to complete the spring.
  • the apertured spring element may comprise the complete spring, which is welded near one of its ends to the electrode assembly and isapertured near its free other end to receive the stud.
  • the apertured spring elements are secured to the electrode assembly in precise .alignment with their associated panel studs.
  • the studs are attached to a faceplate panel by the use of one jig and the support springs are attached to the mask electrode by the use of a different but related jig.
  • the resulting tolerance of fit of the mask on the studs and the tolerance of the mask-to-' screen spacing is accordingly determined by the additive tolerances of the two jigs.
  • the present method avoids the inaccuracies of such additive tolerances.
  • the studs themselves are used as the locating jigs for securing the aperaccurate spacing of the mask electrode from the faceplate.
  • the inaccuracies of the prior art method of using two separate jigs may not be detrimental to the fit of the mask on the studs. However, it will be detrimental to an accurate establishing of maskto-screen spacing. In a tube wherein the mask electrode is supported on four studs (4-stud system) the inaccuracies of the 2-jig prior art method will be detrimental to both the fit of the mask on the studs and to the mask-toscreen spacing.
  • the improved accuracy of fit between the mask electrode and the studs obtained by my'rnethod is therefore especially advantageous in a 4-stud system such as has been proposed for a shadow mask cathode ray tube having a rectangularly shaped faceplate and mask electrode.
  • a 3-spring mask can always be fitted onto its 3-stud panel even though, due to manufacturing tolerances, the spring aperture array and the stud array are not identically disposed. This is because the mask can be shifted and rotated slightly until each of the three spring apertures is in alignment with its associated stud. Furthermore, the three springs Will be received on the three studs with the mask in only one position. That is, a 3-point support arrangement of three springs on three studs determines a unique position of the mask relative to the panel. Thisis true not only for a 3-stud support system, but also for three of the four supports of a 4-stud support system.
  • the fourth spring and the fourth stud must be positioned so that they mate precisely with each other when the mask is in the unique position determined by the other three supports. Manufacturing tolerances of the prior art methods described above do not permit such precise positioning to be readily obtained.
  • FIG. l' is a plan view of a cathode ray tube faceplate panel and apertured mask electrode together with a spacing fixture utilized in securing the apertured spring elements to the mask electrode assembly;
  • FIG. 2 is a sectional view taken along line 2-2 of FIG. 1;
  • FIG. 3 is an enlarged sectional view of a portion of the device of FIGS. 1 and 2 taken along line 33 of FIG. 2;
  • FIG. 4 is an exploded perspective view of the stud and a portion of the spring support of FIG. 3;
  • FIGS. 5 and '6 are perspective and exploded perspective views of respectively alternative embodiments of spring supports.
  • a cathode ray tube glass faceplate panel 10 comprises a generally rectangular faceplate 12 and a sidewall 14 extending from the periphery of the faceplate.
  • the faceplate 12 is preferably curved, e.g., with an approximately spherical contour, as is known in the art.
  • a plurality of electrode mounting studs 16 extend from the interior surface of the panel sidewall 14.
  • the studs 16 may be bonded to the surface of the sidewall with, e.g., a glass frit, or they may be embedded in 'the sidewall by a conventional glass-tometal seal.
  • Each stud 16 (FIGS. 3 and 4) comprises a cylindrical base 21 and a frusto-conical tip 22.
  • a shadow mask electrode 24, mounted within the faceplate panel 10, includes a frame member 26 and a masking member 28.
  • the frame 26 comprises a generally rectangular loop-shaped rim having an L-shaped cross section.
  • the masking member 28 comprises a shallow bowl-like multiapertured sheet of metal mounted across the frame 26.
  • the masking member 28 has a surface contour which approximately matches the surface contour of the faceplate 12, for example, as described in US. Patent 3,109,116 issued to D. W. Epstein et al., on Oct. 29, 1963.
  • a plurality of support springs 29 are attached to the electrode 24 and support it on the studs 16.
  • each of the support springs 29 has one of its ends attached to the side of the frame 26 such as by spot welds at points 30.
  • the other end of each spring 29 is off-set outwardly from the side of the frame and provided with a stud-receiving aperture 31.
  • the offset may be provided by suitably bending the springs 29 along a line 32 thereacross.
  • the springs are located so that their apertures 31 receive the frusto-conical tips 22 of the studs 16 to removably mount the mask electrode 24 within the panel 10.
  • the mask electrode 24 may be removed and/or re-mounted by depressing the support springs 29 toward the frame 26 and free of the studs 16.
  • Each spring 29 preferably comprises a leaf spring strap element 33 and a Washer or apertured element 34.
  • the strap 33 is provided near its free end with an opening 35 which is considerably larger than the stud tip 22 on which the spring 29 is seated.
  • the washer 34 is provided with the stud-receiving aperture 31 in which the stud tip 22 is snugly seated.
  • the aperture 31 is preferably shaped to contact the stud tip 22 in three triangularly spaced locations.
  • the aperture 31 may include three inwardly projecting fingers 36 which are suitably shaped to mate with the stud tip 22.
  • the diameter of the washer opening 31 is intermediate the maximum and minimum diameters of the frusto-conical stud tip 22, as shown in the drawing, in order to snugly fit the stud tip.
  • the washer 34 is disposed flush against the strap 33 on the stud side thereof, i.e. between the strap 33 and the sidewall 14 of the panel 10, with the stud-receiving aperture 31 in the washer overlying the large opening 35 in the strap.
  • the large size of the strap opening 35 permits the strap 33 to loosely receive the stud tip 22 and the washer 34 to be adjustably positioned on the strap 33 to obtain a desired alignment with the associated stud 16.
  • the strap 33 includes a tab 37 to facilitate depression of the strap during attachment of the washer 34 thereto.
  • the opening in the strap 33 over which the stud-receiving aperture lies need not be completely surrounded by portions of the strap 33 as is the opening 35. Instead the opening may be, e.g., a U-shaped cut-out extending inwardly from an edge of the strap 33.
  • a 2-piece support spring 29 as described above is preferred, a one-piece spring 38 as shown in FIG. may be used. In such case the separate washer 34 is omitted. Instead the spring 38 comprises the equivalent of a strap 33 with a stud-receiving aperture 31 instead of the opening 35. As hereinafter pointed out, the twopiece support spring 29 described above is preferred because it affords a more facile mask fabrication procedure than does the one-piece support spring.
  • the multiapertured mask member 28 and the straps 33 are first mounted on the frame 26 according to known techniques.
  • This mask-frame-strap assembly 28, 26, 33 (hereinafter referred to simply as the mask assembly) is then positioned on top of a spacer device 39 within the faceplate panel 10, to accurately establish a desired mask-to-screen spacing.
  • the panel may be oriented open-end-up as shown in FIG. 2 so that gravity urges the mask assembly 28, 26, 33 against the spacer 39 and the spacer against the panel 10.
  • the spacer device 39 includes a T-shaped member whose three arms 40, 40,
  • Spacer pads 42 are provided near the ends of the arms 40, 40, 41 and extend therefrom to contact the faceplate 12.
  • Masksupport brackets 44 are attached to the ends of the spacer arms 40, 40, 41 for receiving the mask assembly 28, 26, 33 in desired relationship with the faceplate 12.
  • spacer devices may be used in place of the spacer device 39.
  • the panel 10, spacer 39, and mask assembly 28, 26, 33 may be inverted, with the mask assembly 28, 26, 33 being supported and the panel 10 resting thereupon.
  • the straps 33 are depressed toward the frame 26 and the washers 34 are inserted over the studs 16 between the straps 33 and the studs, with the stud tips 22 snugly received within the apertures 31.
  • the spring action of the straps 33 urges the washers 34 against the frusto-conical tips 22 of the studs 16 to keep the Washers in place.
  • the tabs 37 on the straps are helpful in facilitating depression of the straps since a fabricators finger or spring depressor tool can conveniently be applied to the tabs.
  • the washers 34 are still free to move relative to the straps 33; and the mask assembly 28, 26, 33 and spacer device 38 are still free to be urged together and against the faceplate 12.
  • the operator now establishes a precisely desired spacing between the mask member 28 and the faceplate 12 and a precise alignment of the stud-receiving apertures 31 of the washers with the studs 16.
  • the washers 34 are then secured to the straps 33 such as by a suitable welding thereof. It has been found preferable to provide only a temporary tack weld at this stage. Then, with the completely assembled mask electrode 24 removed from the panel 10 (by depressing the straps 33) a more secure weld using larger equipment is provided. The reason for making the initial tack weld is that the larger welding equipment cannot be easily fitted into the available space between the frame 26 and panel sidewall 14 when the mask assembly 28, 26, 33 is disposed in the panel 10.
  • a one-piece spring 38 may be used. Such a one-piece spring may be considered to integrally include the washer 34.
  • a mask-frame assembly of the multiapertured mask member 28 and the frame 26 is disposed in the panel 10 on the spacer device.
  • the one-piece springs 38 are then inserted over the studs 16 and welded to the mask frame 26 in a manner similar to the procedure described above.
  • Means (not shown) is provided for holding the one-piece springs 38 against the frame 26 while they are being welded.
  • a fabrication procedure using one-piece springs provides the desired mask-to-faceplate spacing and the custom alignment of stud-receiving apertures 31 with their associated studs 16.
  • the above-described methods of attaching the spring apertured elements-either as an integral one-piece spring 38 or as a separate washer 34 of a 2-piece springrelative to the frame 26 may be used to secure either all of the support springs or any partial number of them, to the frame 26.
  • three support springs may be secured to the frame by prior art methods.
  • the mask-frame assembly with the three springs may be supported within the panel using the three existing springs.
  • the fourth spring apertured element is then secured to the frame 26 as hereinbefore described.
  • the spacing device 39 may be dispensed with since the mask can be supported in place within the panel by the three existing springs during the securing of the fourth apertured spring element. Attachment of only one apertured spring element by my method will provide the custom alignment highly desired in positioning the fourth spring of a 4-spring mask electrode 24.
  • FIG. 6 illustrates a support spring 50 which embodies the 2-piece spring feature of the invention and which can be substituted for the spring 29.
  • the spring 50 comprises a V-shaped spring strap 52 having a central portion 54 in which the large opening 35 is provided.
  • the washer 34 is adjustably positioned flush against the strap portion 54 with the stud-receiving aperture 31 overlying the opening 35.
  • the strap 52 is attached at points 56 by spot welds to the mask frame 26.
  • the legs of the V-strap 52 are bent along the bend-lines 58 to space the aperture 31 away from the mask frame.
  • a cathode ray tube of the type including a faceplate panel, four electrode support studs symmetrically distributed about and attached to said panel, and a multiapertured electrode mounted on said studs in a predetermined spatial relationship with said panel; the improvement which comprises:
  • a strap-like support spring having one end secured to said electrode and the other end spaced from said electrode, said other end having an aperture larger than said studs loosely receiving one of said studs,
  • a washer-like element located between said panel and said other end of said support spring and having an aperture therein snugly receiving said one of said studs
  • said washer-like element being permanently secured to said support spring near its said other end with the portion of the surface of the spring adjacent to the surface of the washer-like element selected to effect said predetermined spatial relationship.
  • a cathode ray tube of the type including a faceplate panel comprising a faceplate, a peripheral side wall, and a plurality of electrode support studs extending from the interior surface of said side wall, and a multiapertured shadow mask electrode mounted on said studs in a predetermined spaced relationship with said panel; the improvement which comprises:
  • each of said washers being permanently secured in flush face-to-face contact to the corresponding one of said support springs with the portion of the surface of the spring adjacent to the surface of the washer selected to effect said predetermined spaced relationship.
  • a faceplate panel In a cathode ray tube, a faceplate panel, a plurality of frustoconical electrode support studs extending from said panel, a multiapertured shadow mask electrode, and a plurality of apertured means attached to said electrode and adapted to receive said studs in the apertures thereof for mounting said electrode in a predetermined spaced relationship with said panel, at least one of said means comprising a strap-like support spring having one end secured to the periphery of said electrode, said spring being bent to space the other end thereof from said electrode, said other end having an opening therein larger than said studs loosely receiving one of the studs, a washer located between said side wall and said other end of one of said support springs and having an aperture therein with a diameter intermediate the maximum and minimum diameters of said frustoconical studs snugly engaging one of said studs, said washer being located between said panel and said support spring, with said support spring resiliently urging said washer against the frustoconical surface of

Landscapes

  • Electrodes For Cathode-Ray Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
US374587A 1964-06-12 1964-06-12 Shadow mask mounting structure Expired - Lifetime US3334259A (en)

Priority Applications (40)

Application Number Priority Date Filing Date Title
US374691A US3335479A (en) 1964-06-12 1964-06-12 Method of fabricating and processing cathode ray tubes
US374755A US3308327A (en) 1964-06-12 1964-06-12 Cathode ray tube
US374587A US3334259A (en) 1964-06-12 1964-06-12 Shadow mask mounting structure
US409261A US3296625A (en) 1964-06-12 1964-11-05 Cathode ray tube with electrode supported by strap-like springs
US409190A US3296477A (en) 1964-06-12 1964-11-05 Cathode ray tube with electrode supported by strap-like springs
GB25029/65A GB1084588A (en) 1964-06-12 1965-05-27 Improvements in and relating to the fabrication of cathode ray tubes
GB22902/65A GB1109001A (en) 1964-06-12 1965-05-28 Cathode ray tube structures and methods of making the structures
DE19651514352 DE1514352B1 (de) 1964-06-12 1965-06-05 Verfahren zur Montage der Lochmaske einer Bildroehr
GB24151/65A GB1115313A (en) 1964-06-12 1965-06-08 Cathode ray tube
FR19827A FR1435690A (fr) 1964-06-12 1965-06-08 Perfectionnements aux tubes à rayons cathodiques
FR19828A FR1435691A (fr) 1964-06-12 1965-06-08 Tube cathodique perfectionné et son procédé de fabrication
DK289565AA DK121388B (da) 1964-06-12 1965-06-09 Fremgangsmåde til varmestabilisering af en med åbninger forsynet elektrode og et frontpladepanel til et katodestrålerør.
DK289365AA DK122553B (da) 1964-06-12 1965-06-09 Katodestrålerør.
FR20019A FR1436440A (fr) 1964-06-12 1965-06-09 Procédé pour la fabrication de plaques frontales de tubes à rayons cathodiques
ES0314048A ES314048A1 (es) 1964-06-12 1965-06-10 Un dispositivo de tubo de rayos catodicos.
DE19651789070 DE1789070C2 (de) 1964-06-12 1965-06-10 Verfahren zum Befestigen von Tragstiften am inneren Rande der Frontplatte einer Kathodenstrahlröhre zur Wiedergabe farbiger Fernsehbilder
DE1965R0040845 DE1288691C2 (de) 1964-06-12 1965-06-10 Verfahren zur waermestabilisierung einer lochmasken-frontplatten-anordnung fuer eine kathodenstrahlroehre zur wiedergabe farbiger fernsehbilder
ES0314049A ES314049A1 (es) 1964-06-12 1965-06-10 Un dispositivo de tubo de rayos catodicos.
NL656507480A NL145094B (nl) 1964-06-12 1965-06-11 Werkwijze voor het vervaardigen van een kathodestraalbuis voor kleurentelevisie en kathodestraalbuis vervaardigd door toepassing van deze werkwijze.
SE7730/65A SE306350B (enrdf_load_stackoverflow) 1964-06-12 1965-06-11
SE7731/65A SE308735B (enrdf_load_stackoverflow) 1964-06-12 1965-06-11
NL656507481A NL148182B (nl) 1964-06-12 1965-06-11 Werkwijze voor het vervaardigen van een samenstel van een glazen frontplaatpaneel voor een kathodestraalbuis met een mozaiekscherm van fosforneerslagen en een geperforeerde maskerelektrode, en samenstel vervaardigd volgens deze werkwijze.
DE19651437838 DE1437838B2 (de) 1964-06-12 1965-06-11 Kathodenstrahlröhre zur Farbbildwiedergabe mit einer Lochmaskenelektrode, die entfernbar in einem vorgeschriebenen Abstand von der Frontplatte der Röhre montiert ist und Verfahren zur Montage der Lochmaske
DK295065AA DK118513B (da) 1964-06-12 1965-06-11 Katodestrålerør.
DK295165AA DK121523B (da) 1964-06-12 1965-06-11 Fremgangsmåde til fremstilling af et katodestrålerør.
BE665322A BE665322A (enrdf_load_stackoverflow) 1964-06-12 1965-06-11
BE665326D BE665326A (enrdf_load_stackoverflow) 1964-06-12 1965-06-11
AT528965A AT257706B (de) 1964-06-12 1965-06-11 Verfahren zur Herstellung einer Kathodenstrahlröhre
BE665321A BE665321A (enrdf_load_stackoverflow) 1964-06-12 1965-06-11
NL656507483A NL148436B (nl) 1964-06-12 1965-06-11 Werkwijze voor het vervaardigen van een elektronenstraalbuis, alsmede elektronenstraalbuis vervaardigd onder toepassing van deze werkwijze.
DER40856A DE1286540B (de) 1964-06-12 1965-06-11 Farbbildroehre
BE665325A BE665325A (enrdf_load_stackoverflow) 1964-06-12 1965-06-11
FR20410A FR1436497A (fr) 1964-06-12 1965-06-11 Perfectionnements aux tubes à rayons cathodiques
GB6359/68A GB1120332A (en) 1964-06-12 1965-06-12 Methods of fabricating and processing cathode ray tubes
GB19471/65A GB1120331A (en) 1964-06-12 1965-06-12 Methods of fabricating and processing cathode ray tubes
NL656507566A NL139147B (nl) 1964-06-12 1965-06-14 Kleurentelevisieweergeefbuis.
DK266769AA DK119215B (da) 1964-06-12 1969-05-16 Fremgangsmåde ved fremstilling af et katodestrålerør med en maskeelektrode eller en tilsvarende elektrode, der er aftageligt fastholdt i frontpladepanelet.
DK391870AA DK120809B (da) 1964-06-12 1970-07-28 Katodestrålerør med en bag frontpanelet af fjedre og tappe båret elektrode.
NL727200523A NL149632B (nl) 1964-06-12 1972-01-13 Werkwijze voor het vervaardigen van een samenstel van een glazen frontplaatpaneel voor een elektronenstraalbuis en een geperforeerde maskerelektrode, alsmede samenstel vervaardigd overeenkomstig deze werkwijze.
NL737305215A NL143366B (nl) 1964-06-12 1973-04-13 Kleurentelevisieweergeefbuis.

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US374691A US3335479A (en) 1964-06-12 1964-06-12 Method of fabricating and processing cathode ray tubes
US374587A US3334259A (en) 1964-06-12 1964-06-12 Shadow mask mounting structure
US374755A US3308327A (en) 1964-06-12 1964-06-12 Cathode ray tube
US409190A US3296477A (en) 1964-06-12 1964-11-05 Cathode ray tube with electrode supported by strap-like springs
US409261A US3296625A (en) 1964-06-12 1964-11-05 Cathode ray tube with electrode supported by strap-like springs

Publications (1)

Publication Number Publication Date
US3334259A true US3334259A (en) 1967-08-01

Family

ID=27541342

Family Applications (5)

Application Number Title Priority Date Filing Date
US374755A Expired - Lifetime US3308327A (en) 1964-06-12 1964-06-12 Cathode ray tube
US374587A Expired - Lifetime US3334259A (en) 1964-06-12 1964-06-12 Shadow mask mounting structure
US374691A Expired - Lifetime US3335479A (en) 1964-06-12 1964-06-12 Method of fabricating and processing cathode ray tubes
US409261A Expired - Lifetime US3296625A (en) 1964-06-12 1964-11-05 Cathode ray tube with electrode supported by strap-like springs
US409190A Expired - Lifetime US3296477A (en) 1964-06-12 1964-11-05 Cathode ray tube with electrode supported by strap-like springs

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US374755A Expired - Lifetime US3308327A (en) 1964-06-12 1964-06-12 Cathode ray tube

Family Applications After (3)

Application Number Title Priority Date Filing Date
US374691A Expired - Lifetime US3335479A (en) 1964-06-12 1964-06-12 Method of fabricating and processing cathode ray tubes
US409261A Expired - Lifetime US3296625A (en) 1964-06-12 1964-11-05 Cathode ray tube with electrode supported by strap-like springs
US409190A Expired - Lifetime US3296477A (en) 1964-06-12 1964-11-05 Cathode ray tube with electrode supported by strap-like springs

Country Status (8)

Country Link
US (5) US3308327A (enrdf_load_stackoverflow)
BE (4) BE665321A (enrdf_load_stackoverflow)
DE (4) DE1514352B1 (enrdf_load_stackoverflow)
DK (6) DK122553B (enrdf_load_stackoverflow)
FR (3) FR1435690A (enrdf_load_stackoverflow)
GB (5) GB1084588A (enrdf_load_stackoverflow)
NL (4) NL148182B (enrdf_load_stackoverflow)
SE (2) SE306350B (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3449611A (en) * 1966-06-22 1969-06-10 Nat Video Corp Suspension system for color television tube mask
US3487251A (en) * 1966-11-19 1969-12-30 Philips Corp Parallelogram mounting fixture for shadow mask
US3492522A (en) * 1967-08-15 1970-01-27 Zenith Radio Corp Shadow mask supported by v-shaped springs having apices directed toward gun
US3562517A (en) * 1967-10-03 1971-02-09 Nat Video Corp Shadow mask mounting system for color kinescope including one side direct connection
US3832592A (en) * 1971-07-05 1974-08-27 Hitachi Ltd Mask electrode support for color picture tube
US4387321A (en) * 1980-07-21 1983-06-07 U.S. Philips Corporation Color display tube and suspension means for color selection electrode
DE3337825A1 (de) * 1982-10-18 1984-04-19 RCA Corp., 10020 New York, N.Y. Befestigungsvorrichtung mit versetztem distanzring fuer eine farbwaehlelektrode
FR2549757A1 (fr) * 1983-07-27 1985-02-01 Rca Corp Dispositif pour souder une rondelle sur le ressort de support d'un systeme de masque d'ombre de cinescope
DE3523643A1 (de) * 1984-07-03 1986-01-09 Rca Corp., Princeton, N.J. Kathodenstrahlroehre mit schattenmaske und verfahren zum einsetzen des maskenaufbaus
US4866333A (en) * 1985-09-25 1989-09-12 Kabushiki Kaisha Toshiba Color picture tube with shadow mask supporting assembly
US4963786A (en) * 1988-01-22 1990-10-16 Kabushiki Kaisha Toshiba Method and apparatus for supporting a shadow mask
US4992067A (en) * 1989-10-25 1991-02-12 Rca Licensing Corp. Method of manufacturing a color cathode-ray tube
US20040229521A1 (en) * 2003-05-12 2004-11-18 Min-Hee Ko Holder for cathode ray tube and fabrication method thereof

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US3357767A (en) * 1967-03-01 1967-12-12 Sylvania Electric Prod Cathode ray tube fabrication
US3537159A (en) * 1968-11-19 1970-11-03 Sylvania Electric Prod Apparatus for achieving custom mask to panel spacing in cathode ray tubes
US3537161A (en) * 1968-11-19 1970-11-03 Sylvania Electric Prod Process for achieving custom mask to panel spacing in cathode ray tubes
US3898508A (en) * 1968-12-19 1975-08-05 Zenith Radio Corp Temperature compensated shadow mask for a color cathode-ray tube
US3610990A (en) * 1969-04-18 1971-10-05 Hitachi Ltd Leaf spring arrangement for color selection electrode
US3553517A (en) * 1969-04-21 1971-01-05 Sylvania Electric Prod Support means for a color cathode ray tube shadow mask member having smooth circumferential seating contact
US3619689A (en) * 1970-04-06 1971-11-09 Rca Corp Cathode-ray tube with electrode supported by straplike springs
US3700948A (en) * 1970-07-09 1972-10-24 Motorola Inc Edge-bonded bi-metallic strip extending from metal plate on shadow mask to stud via spring of substantially smaller cross-sectional area than strip
US3672014A (en) * 1970-12-24 1972-06-27 Rca Corp Method of mounting a mass in a cathode-ray tube using retractable spacing units
US3701185A (en) * 1971-01-18 1972-10-31 Rca Corp Method of assembling a mask with a frame assembly for mounting in a cathode-ray tube using a remote assembly position
US3701193A (en) * 1971-03-05 1972-10-31 Rca Corp Method of assembling and mounting an aperture mask in a mask-panel assembly of a cathode-ray tube using a full surface spacer
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US4058875A (en) * 1976-08-18 1977-11-22 Rca Corporation Method of assembling a mask-panel assembly of a shadow-mask cathode-ray tube
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US4460843A (en) * 1982-04-29 1984-07-17 Rca Corporation Color picture tube having improved temperature compensating support for a mask-frame assembly
JPS6015241Y2 (ja) * 1983-05-31 1985-05-14 ソニー株式会社 カラー陰極線管の電子ビーム到達位置選別手段の取付け装置
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JP3516462B2 (ja) * 1993-05-20 2004-04-05 ソニー株式会社 陰極線管の製造方法
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Cited By (18)

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Publication number Priority date Publication date Assignee Title
US3449611A (en) * 1966-06-22 1969-06-10 Nat Video Corp Suspension system for color television tube mask
US3487251A (en) * 1966-11-19 1969-12-30 Philips Corp Parallelogram mounting fixture for shadow mask
US3492522A (en) * 1967-08-15 1970-01-27 Zenith Radio Corp Shadow mask supported by v-shaped springs having apices directed toward gun
US3562517A (en) * 1967-10-03 1971-02-09 Nat Video Corp Shadow mask mounting system for color kinescope including one side direct connection
US3832592A (en) * 1971-07-05 1974-08-27 Hitachi Ltd Mask electrode support for color picture tube
US4387321A (en) * 1980-07-21 1983-06-07 U.S. Philips Corporation Color display tube and suspension means for color selection electrode
DE3337825A1 (de) * 1982-10-18 1984-04-19 RCA Corp., 10020 New York, N.Y. Befestigungsvorrichtung mit versetztem distanzring fuer eine farbwaehlelektrode
US4467242A (en) * 1982-10-18 1984-08-21 Rca Corporation Color selection electrode mounting structure having an off-set washer
FR2549757A1 (fr) * 1983-07-27 1985-02-01 Rca Corp Dispositif pour souder une rondelle sur le ressort de support d'un systeme de masque d'ombre de cinescope
DE3427671A1 (de) * 1983-07-27 1985-02-14 Rca Corp., New York, N.Y. Vorrichtung zum schweissen der verbindung von schattenmaske und frontschale
US4500767A (en) * 1983-07-27 1985-02-19 Rca Corporation Shadow mask washer/spring welding apparatus
DE3523643A1 (de) * 1984-07-03 1986-01-09 Rca Corp., Princeton, N.J. Kathodenstrahlroehre mit schattenmaske und verfahren zum einsetzen des maskenaufbaus
US4866333A (en) * 1985-09-25 1989-09-12 Kabushiki Kaisha Toshiba Color picture tube with shadow mask supporting assembly
US4963786A (en) * 1988-01-22 1990-10-16 Kabushiki Kaisha Toshiba Method and apparatus for supporting a shadow mask
EP0325207A3 (en) * 1988-01-22 1991-02-27 Kabushiki Kaisha Toshiba Color cathode ray tube
US4992067A (en) * 1989-10-25 1991-02-12 Rca Licensing Corp. Method of manufacturing a color cathode-ray tube
US20040229521A1 (en) * 2003-05-12 2004-11-18 Min-Hee Ko Holder for cathode ray tube and fabrication method thereof
US7045940B2 (en) * 2003-05-12 2006-05-16 Lg. Philips Displays Korea Co., Ltd. Holder for cathode ray tube and fabrication method thereof

Also Published As

Publication number Publication date
FR1435691A (fr) 1966-04-15
GB1120331A (en) 1968-07-17
NL6507483A (enrdf_load_stackoverflow) 1965-12-13
BE665325A (enrdf_load_stackoverflow) 1965-10-01
US3296625A (en) 1967-01-03
DK122553B (da) 1972-03-13
DE1288691C2 (de) 1975-01-30
BE665322A (enrdf_load_stackoverflow) 1965-10-01
US3308327A (en) 1967-03-07
FR1436497A (fr) 1966-04-22
US3296477A (en) 1967-01-03
NL6507480A (enrdf_load_stackoverflow) 1965-12-13
DE1514352B1 (de) 1970-07-30
DK119215B (da) 1970-11-30
NL6507566A (enrdf_load_stackoverflow) 1965-12-13
DK120809B (da) 1971-07-19
BE665321A (enrdf_load_stackoverflow) 1965-10-01
US3335479A (en) 1967-08-15
NL148182B (nl) 1975-12-15
DE1437838B2 (de) 1970-11-19
GB1115313A (en) 1968-05-29
DE1288691B (de) 1969-02-06
NL6507481A (enrdf_load_stackoverflow) 1965-12-13
NL139147B (nl) 1973-06-15
SE308735B (enrdf_load_stackoverflow) 1969-02-24
GB1120332A (en) 1968-07-17
GB1084588A (en) 1967-09-27
NL148436B (nl) 1976-01-15
NL145094B (nl) 1975-02-17
DE1789070B1 (de) 1975-07-31
GB1109001A (en) 1968-04-10
DK121523B (da) 1971-10-25
SE306350B (enrdf_load_stackoverflow) 1968-11-25
FR1435690A (fr) 1966-04-15
DE1437838A1 (de) 1968-12-05
DE1286540B (de) 1969-01-09
DK118513B (da) 1970-08-31
DK121388B (da) 1971-10-11
BE665326A (enrdf_load_stackoverflow) 1965-10-01

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