Classifications

• • 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
  • H05B3/00—Ohmic-resistance heating
  • H05B3/40—Heating elements having the shape of rods or tubes
  • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
  • H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
  • H05B3/52—Apparatus or processes for filling or compressing insulating material in tubes
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
  • H01B7/00—Insulated conductors or cables characterised by their form
  • H01B7/16—Rigid-tube cables
• • 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
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
  • Y10T29/49082—Resistor making
  • Y10T29/49087—Resistor making with envelope or housing
  • Y10T29/49089—Filling with powdered insulation

Applications Claiming Priority (1)

Publications (1)

Family

ID=23363726

Family Applications (1)

Country Status (4)

• 0
  • BE BE448813D patent/BE448813A/xx unknown
• 1940
  • 1940-07-25 US US347446A patent/US2316659A/en not_active Expired - Lifetime
• 1941
  • 1941-07-25 GB GB9437/41A patent/GB545176A/en not_active Expired
• 1942
  • 1942-04-17 FR FR52066D patent/FR52066E/fr not_active Expired

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