FR2406941A7 - Extensible helical flex, e.g. for supplying power to electric shaver - has polyamide filament co-extruded with the conductors inside a PVC casing to facilitate return to contracted position - Google Patents

Extensible helical flex, e.g. for supplying power to electric shaver - has polyamide filament co-extruded with the conductors inside a PVC casing to facilitate return to contracted position

Info

Publication number
FR2406941A7
FR2406941A7 FR7732541A FR7732541A FR2406941A7 FR 2406941 A7 FR2406941 A7 FR 2406941A7 FR 7732541 A FR7732541 A FR 7732541A FR 7732541 A FR7732541 A FR 7732541A FR 2406941 A7 FR2406941 A7 FR 2406941A7
Authority
FR
France
Prior art keywords
extruded
flex
contracted position
supplying power
electric shaver
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
FR7732541A
Other languages
French (fr)
Inventor
Luciano Franzini
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.)
SALVI SpA
Original Assignee
SALVI SpA
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 SALVI SpA filed Critical SALVI SpA
Priority to FR7732541A priority Critical patent/FR2406941A7/en
Application granted granted Critical
Publication of FR2406941A7 publication Critical patent/FR2406941A7/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01B7/06—Extensible conductors or cables, e.g. self-coiling cords
    • H01B7/065—Extensible conductors or cables, e.g. self-coiling cords having the shape of an helix

Landscapes

  • Insulated Conductors (AREA)

Abstract

The helical flex consists of >=2 electric conductors and a casing, e.g. of PVC, extruded around the conductors. A polyamide filament is co-extruded with the other components, and facilitates a return to the contracted position. The flex is pref. spiral-shaped, and the turns of the spiral can be made wider than previously. This increases the useful lengths of the flex.
FR7732541A 1977-10-24 1977-10-24 Extensible helical flex, e.g. for supplying power to electric shaver - has polyamide filament co-extruded with the conductors inside a PVC casing to facilitate return to contracted position Expired FR2406941A7 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7732541A FR2406941A7 (en) 1977-10-24 1977-10-24 Extensible helical flex, e.g. for supplying power to electric shaver - has polyamide filament co-extruded with the conductors inside a PVC casing to facilitate return to contracted position

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7732541A FR2406941A7 (en) 1977-10-24 1977-10-24 Extensible helical flex, e.g. for supplying power to electric shaver - has polyamide filament co-extruded with the conductors inside a PVC casing to facilitate return to contracted position

Publications (1)

Publication Number Publication Date
FR2406941A7 true FR2406941A7 (en) 1979-05-18

Family

ID=9197052

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7732541A Expired FR2406941A7 (en) 1977-10-24 1977-10-24 Extensible helical flex, e.g. for supplying power to electric shaver - has polyamide filament co-extruded with the conductors inside a PVC casing to facilitate return to contracted position

Country Status (1)

Country Link
FR (1) FR2406941A7 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003818A1 (en) * 1989-08-29 1991-03-21 W.L. Gore & Associates, Inc. Retractable coiled electrical cable
FR3021156A1 (en) * 2014-05-14 2015-11-20 Max Roumagnac PERFECTIONED POWER CABLE FOR ROBOT SWIMMING POOL CLEANER AND ROBOT SWIMMING CLEANER EQUIPPED WITH SUCH A CABLE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003818A1 (en) * 1989-08-29 1991-03-21 W.L. Gore & Associates, Inc. Retractable coiled electrical cable
FR3021156A1 (en) * 2014-05-14 2015-11-20 Max Roumagnac PERFECTIONED POWER CABLE FOR ROBOT SWIMMING POOL CLEANER AND ROBOT SWIMMING CLEANER EQUIPPED WITH SUCH A CABLE

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Legal Events

Date Code Title Description
ST Notification of lapse