GB697275A - Improvements in the method of applying a protective and electrically insulating covering to components - Google Patents

Improvements in the method of applying a protective and electrically insulating covering to components

Info

Publication number
GB697275A
GB697275A GB2919451A GB2919451A GB697275A GB 697275 A GB697275 A GB 697275A GB 2919451 A GB2919451 A GB 2919451A GB 2919451 A GB2919451 A GB 2919451A GB 697275 A GB697275 A GB 697275A
Authority
GB
United Kingdom
Prior art keywords
protective
applying
components
electrically insulating
volatile medium
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
GB2919451A
Inventor
William Frank Glover
Frank Ernest Giles
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB2919451A priority Critical patent/GB697275A/en
Publication of GB697275A publication Critical patent/GB697275A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/12—Protection against corrosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/12—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/14—Dipping a core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/06—Fixed inductances of the signal type  with magnetic core with core substantially closed in itself, e.g. toroid
    • H01F17/08—Loading coils for telecommunication circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mechanical Engineering (AREA)
  • Organic Insulating Materials (AREA)

Abstract

To provide protection and electrical insulation for a component, e.g. a toroidal coil, it is dipped into a stirred dispersion in a volatile medium of powdered paper impregnated with a thermoplastic binder and removed to allow the volatile medium to evaporate. The drying is preferably conducted in a ventilated oven, after which further coatings may be applied. In a preferred application the powder is made from acetylated paper impregnated with polystyrene, the preparation of which paper is described in Specification 553,304, [Group IV(b)]. In an example the volatile medium used is trichlorethylene.
GB2919451A 1951-12-13 1951-12-13 Improvements in the method of applying a protective and electrically insulating covering to components Expired GB697275A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2919451A GB697275A (en) 1951-12-13 1951-12-13 Improvements in the method of applying a protective and electrically insulating covering to components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2919451A GB697275A (en) 1951-12-13 1951-12-13 Improvements in the method of applying a protective and electrically insulating covering to components

Publications (1)

Publication Number Publication Date
GB697275A true GB697275A (en) 1953-09-16

Family

ID=10287640

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2919451A Expired GB697275A (en) 1951-12-13 1951-12-13 Improvements in the method of applying a protective and electrically insulating covering to components

Country Status (1)

Country Link
GB (1) GB697275A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079504A2 (en) * 1999-08-26 2001-02-28 Honda Giken Kogyo Kabushiki Kaisha Method of manufacturing rotating electric machine and method of impregnating coil with resin, having separate processes of incorporating particles and impregnating coil

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1079504A2 (en) * 1999-08-26 2001-02-28 Honda Giken Kogyo Kabushiki Kaisha Method of manufacturing rotating electric machine and method of impregnating coil with resin, having separate processes of incorporating particles and impregnating coil
EP1079504B1 (en) * 1999-08-26 2007-10-31 Honda Giken Kogyo Kabushiki Kaisha Method of impregnating coil with resin, having separate processes of incorporating particles and impregnating coil

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