GB1480703A - Capacitor and method of making same - Google Patents

Capacitor and method of making same

Info

Publication number
GB1480703A
GB1480703A GB785375A GB785375A GB1480703A GB 1480703 A GB1480703 A GB 1480703A GB 785375 A GB785375 A GB 785375A GB 785375 A GB785375 A GB 785375A GB 1480703 A GB1480703 A GB 1480703A
Authority
GB
United Kingdom
Prior art keywords
sleeve
piston
fixed electrode
terminal
capacitor
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
GB785375A
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.)
Standex International Corp
Original Assignee
Standex International Corp
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 Standex International Corp filed Critical Standex International Corp
Priority to GB785375A priority Critical patent/GB1480703A/en
Priority to DE19752508827 priority patent/DE2508827A1/en
Publication of GB1480703A publication Critical patent/GB1480703A/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
    • H01G5/00—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
    • H01G5/04—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of effective area of electrode
    • H01G5/14—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of effective area of electrode due to longitudinal movement of electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G5/00—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture
    • H01G5/16—Capacitors in which the capacitance is varied by mechanical means, e.g. by turning a shaft; Processes of their manufacture using variation of distance between electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
  • Measuring Leads Or Probes (AREA)

Abstract

1480703 Variable capacitors STANDEX INTERNATIONAL CORP 25 Feb 1975 7853/75 Heading H1M In a variable capacitor wherein the movable electrode is a threaded piston 44 axially displaceable within insulating sleeve 22 supporting the fixed electrode 26, air gaps between the flattened peaks 46 of the screw thread and the inner wall of sleeve 22 are minimized by having the piston 44 slightly oversize and providing a longitudinal slot 42 in the sleeve 22 and associated members to permit radial expansion thereof. As shown sleeve 22 has a second metal coating 24 spaced from fixed electrode 26 and terminal members 28 and 30 have slotted sleeve portions slid over and soldered to metal coatings 26 and 24 respectively, terminal 28 being connected to piston 44 by spring portions 45. Sleeve 22 may be formed by bending a flat sheet of, e.g. p.t.f.e. having the appropriate metal pattern thereon (Figs. 8-11, not shown).
GB785375A 1975-02-25 1975-02-25 Capacitor and method of making same Expired GB1480703A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB785375A GB1480703A (en) 1975-02-25 1975-02-25 Capacitor and method of making same
DE19752508827 DE2508827A1 (en) 1975-02-25 1975-02-27 CONDENSER AND METHOD OF MANUFACTURING THE CONDENSER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB785375A GB1480703A (en) 1975-02-25 1975-02-25 Capacitor and method of making same

Publications (1)

Publication Number Publication Date
GB1480703A true GB1480703A (en) 1977-07-20

Family

ID=9841057

Family Applications (1)

Application Number Title Priority Date Filing Date
GB785375A Expired GB1480703A (en) 1975-02-25 1975-02-25 Capacitor and method of making same

Country Status (2)

Country Link
DE (1) DE2508827A1 (en)
GB (1) GB1480703A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2682964A1 (en) * 2012-07-05 2014-01-08 Wacom Co., Ltd. Variable capacitance type capacitor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2682964A1 (en) * 2012-07-05 2014-01-08 Wacom Co., Ltd. Variable capacitance type capacitor
US9183989B2 (en) 2012-07-05 2015-11-10 Wacom Co., Ltd. Variable capacitance type double-layered capacitor including inside member housed in outside member

Also Published As

Publication number Publication date
DE2508827A1 (en) 1976-09-09

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee