CA967646A - Induction-keyed control circuit with keying network having variable resonant frequency - Google Patents

Induction-keyed control circuit with keying network having variable resonant frequency

Info

Publication number
CA967646A
CA967646A CA139,827A CA139827A CA967646A CA 967646 A CA967646 A CA 967646A CA 139827 A CA139827 A CA 139827A CA 967646 A CA967646 A CA 967646A
Authority
CA
Canada
Prior art keywords
induction
control circuit
resonant frequency
variable resonant
keyed control
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
CA139,827A
Other versions
CA139827S (en
Inventor
Carl E. Atkins
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.)
Wagner Electric Corp
Original Assignee
Wagner Electric 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 Wagner Electric Corp filed Critical Wagner Electric Corp
Application granted granted Critical
Publication of CA967646A publication Critical patent/CA967646A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00714—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with passive electrical components, e.g. resistor, capacitor, inductor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
CA139,827A 1971-05-20 1972-04-17 Induction-keyed control circuit with keying network having variable resonant frequency Expired CA967646A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14530871A 1971-05-20 1971-05-20

Publications (1)

Publication Number Publication Date
CA967646A true CA967646A (en) 1975-05-13

Family

ID=22512499

Family Applications (1)

Application Number Title Priority Date Filing Date
CA139,827A Expired CA967646A (en) 1971-05-20 1972-04-17 Induction-keyed control circuit with keying network having variable resonant frequency

Country Status (6)

Country Link
JP (1) JPS5618747B1 (en)
CA (1) CA967646A (en)
DE (1) DE2222237A1 (en)
FR (1) FR2138836B2 (en)
GB (1) GB1376358A (en)
IT (1) IT1045070B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4210018C2 (en) * 1992-03-27 1995-10-19 Balluff Gebhard Feinmech Weldable inductive proximity switch
GB201317113D0 (en) * 2013-09-26 2013-11-06 Croda Int Plc A co-polymer polyol
KR20210034929A (en) 2019-09-23 2021-03-31 주식회사 엘지화학 Battery Pack Including Hold Down Bracket Having Protrusion Structure

Also Published As

Publication number Publication date
DE2222237A1 (en) 1972-11-30
IT1045070B (en) 1980-05-10
JPS5618747B1 (en) 1981-05-01
FR2138836A2 (en) 1973-01-05
GB1376358A (en) 1974-12-04
FR2138836B2 (en) 1973-07-13

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