US2020718A - Electric device - Google Patents

Electric device Download PDF

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Publication number
US2020718A
US2020718A US746003A US74600334A US2020718A US 2020718 A US2020718 A US 2020718A US 746003 A US746003 A US 746003A US 74600334 A US74600334 A US 74600334A US 2020718 A US2020718 A US 2020718A
Authority
US
United States
Prior art keywords
base
article
lamp
cement
asbestos
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
US746003A
Other languages
English (en)
Inventor
Bol Cornelis
Linnemans Adrianus
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US2020718A publication Critical patent/US2020718A/en
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
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base

Definitions

  • hardenin resin su nhenobformalaehyde; the condensates of urea-formal ehyde or thio Lvgta s, or s e ac.
  • jects the new and d body of heat rewith a hardening hod comprises the of heat-resisting, of the type used asbestos cement, or c amot e, n na ing the formed ch as the products a mass impreg urea form 1 de;
  • Fig. 1 is a front elevational view of the lamp device, the base thereof being shown in section, and
  • Fig. 2 is a sectional vi 2-2 of Fig. 1.
  • the gaseous electric discharge lamp device comprises a U-shaped container having a stem 2 at each end thereof and a thermioni ew thereof along the line denote like parts 'in both the of sodium vapor.
  • a base 5 having two cylindric therein to accomin container l is mo base 5 is fastene al depressions 6 and 8 of the tainer l.
  • the base 5 is made as follows: a mixture of one 2. combination, an electric discharge depart asbestos, one part of cement and two parts avice of a type which is adapted to operate at an talcum s moistened with water and pressed into elevated temperature, and an insulating base the desired shape. Them for an appreciable time, preferably four or five cement and talc whose pores are filled with a days, and is then heated to a temperature of hardening resin. y i
  • a method of manufacturing an electrically md ionditlon is then immersed for approxiinsulating, heat resisting, moisture proof article mately 12 hours in an approximately sglu; which comprises the steps of forming a mass of 15 tion ofacondensate ofa henol-forma e cement, asbestos and talc, drying the formed alcohol.

Landscapes

  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
US746003A 1933-10-04 1934-09-28 Electric device Expired - Lifetime US2020718A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL430288X 1933-10-04

Publications (1)

Publication Number Publication Date
US2020718A true US2020718A (en) 1935-11-12

Family

ID=19786144

Family Applications (1)

Application Number Title Priority Date Filing Date
US746003A Expired - Lifetime US2020718A (en) 1933-10-04 1934-09-28 Electric device

Country Status (6)

Country Link
US (1) US2020718A (pt)
BE (1) BE405421A (pt)
DE (1) DE642903C (pt)
FR (1) FR779127A (pt)
GB (1) GB430288A (pt)
NL (1) NL38211C (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469140A (en) * 1967-02-13 1969-09-23 Westinghouse Electric Corp Single-ended electric incandescent lamp with improved base and terminal structure,and method of assembly
US3691512A (en) * 1970-09-16 1972-09-12 Pyle National Co Impregnated ceramic insulators and method of making same
US20080170399A1 (en) * 2007-01-16 2008-07-17 Access Business Group International Llc Lamp base for dual-leg lamp assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469140A (en) * 1967-02-13 1969-09-23 Westinghouse Electric Corp Single-ended electric incandescent lamp with improved base and terminal structure,and method of assembly
US3691512A (en) * 1970-09-16 1972-09-12 Pyle National Co Impregnated ceramic insulators and method of making same
US20080170399A1 (en) * 2007-01-16 2008-07-17 Access Business Group International Llc Lamp base for dual-leg lamp assembly
WO2008087588A2 (en) * 2007-01-16 2008-07-24 Access Business Group International Llc Lamp base for dual-leg lamp assembly
WO2008087588A3 (en) * 2007-01-16 2008-11-06 Access Business Group Int Llc Lamp base for dual-leg lamp assembly
US7568955B2 (en) 2007-01-16 2009-08-04 Access Business Group International Llc Lamp base for dual-leg lamp assembly

Also Published As

Publication number Publication date
NL38211C (pt)
FR779127A (fr) 1935-03-29
DE642903C (de) 1937-03-19
BE405421A (pt)
GB430288A (en) 1935-06-17

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