BE779520A - Porte 'ou' de securite - Google Patents

Porte 'ou' de securite

Info

Publication number
BE779520A
BE779520A BE779520A BE779520A BE779520A BE 779520 A BE779520 A BE 779520A BE 779520 A BE779520 A BE 779520A BE 779520 A BE779520 A BE 779520A BE 779520 A BE779520 A BE 779520A
Authority
BE
Belgium
Prior art keywords
security door
security
door
Prior art date
Application number
BE779520A
Other languages
English (en)
French (fr)
Inventor
T C Matty
Original Assignee
Westinghouse 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of BE779520A publication Critical patent/BE779520A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
    • H03K19/082—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using bipolar transistors
    • H03K19/084—Diode-transistor logic
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/007—Fail-safe circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)
BE779520A 1971-02-19 1972-02-18 Porte 'ou' de securite BE779520A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11675171A 1971-02-19 1971-02-19

Publications (1)

Publication Number Publication Date
BE779520A true BE779520A (fr) 1972-08-18

Family

ID=22368986

Family Applications (1)

Application Number Title Priority Date Filing Date
BE779520A BE779520A (fr) 1971-02-19 1972-02-18 Porte 'ou' de securite

Country Status (6)

Country Link
BE (1) BE779520A (online.php)
BR (1) BR7200517D0 (online.php)
CA (1) CA963542A (online.php)
ES (1) ES399676A1 (online.php)
FR (1) FR2126018A5 (online.php)
IT (1) IT947475B (online.php)

Also Published As

Publication number Publication date
ES399676A1 (es) 1975-07-01
CA963542A (en) 1975-02-25
FR2126018A5 (online.php) 1972-09-29
BR7200517D0 (pt) 1973-05-24
IT947475B (it) 1973-05-21

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