GB663629A - Improvements in or relating to a resistor and method of making the same - Google Patents

Improvements in or relating to a resistor and method of making the same

Info

Publication number
GB663629A
GB663629A GB12221/48A GB1222148A GB663629A GB 663629 A GB663629 A GB 663629A GB 12221/48 A GB12221/48 A GB 12221/48A GB 1222148 A GB1222148 A GB 1222148A GB 663629 A GB663629 A GB 663629A
Authority
GB
United Kingdom
Prior art keywords
binder
filler
conductive material
resistor
moulded
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
Application number
GB12221/48A
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.)
US Department of Commerce
Original Assignee
US Department of Commerce
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 US Department of Commerce filed Critical US Department of Commerce
Publication of GB663629A publication Critical patent/GB663629A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • H01C7/027—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient consisting of conducting or semi-conducting material dispersed in a non-conductive organic material

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Details Of Resistors (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

663,629. Non-metal resistances. DEPARTMENT OF COMMERCE, DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF. May 4,1948 [May 6, 1947], No. 12221/48. Drawings to Specification. Class 37. A resistor of moulded composition consisting of a filler, binder and conductive material is distinguished in that the binder is a melamineformaldehyde thermo-setting resin. The filler is a fine grain mineral fibre, such as asbestos or mineralite. The conductive material may be powdered metals, for example silver or copper, but is preferably graphite or lamp black or a combination of the two. Fig. 1 (not shown), is a chart showing the stages in the moulding process, mixing details, curing temperature, &c. Figs. 2, 3 and 4 (not shown) are examples of zero temperature coefficient rod and tubular radio resistors with moulded-in terminals. The Specification as open to inspection under Sect. 91 states that a resorcinol-formaldehyde plastic may be used as the binder. This subject-matter does not appear in the Specificaas accepted.
GB12221/48A 1947-05-06 1948-05-04 Improvements in or relating to a resistor and method of making the same Expired GB663629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US663629XA 1947-05-06 1947-05-06

Publications (1)

Publication Number Publication Date
GB663629A true GB663629A (en) 1951-12-27

Family

ID=22069016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12221/48A Expired GB663629A (en) 1947-05-06 1948-05-04 Improvements in or relating to a resistor and method of making the same

Country Status (1)

Country Link
GB (1) GB663629A (en)

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