IT1105400B - Electronic lock with keyboard and rotating switches - has code varied by rotating switches and operated by pushbutton - Google Patents

Electronic lock with keyboard and rotating switches - has code varied by rotating switches and operated by pushbutton

Info

Publication number
IT1105400B
IT1105400B IT5066378A IT5066378A IT1105400B IT 1105400 B IT1105400 B IT 1105400B IT 5066378 A IT5066378 A IT 5066378A IT 5066378 A IT5066378 A IT 5066378A IT 1105400 B IT1105400 B IT 1105400B
Authority
IT
Italy
Prior art keywords
rotating
keyboard
rotating switches
operated
switches
Prior art date
Application number
IT5066378A
Other languages
Italian (it)
Other versions
IT7850663A0 (en
Original Assignee
Tseng I Chang
Chen Cheng Chih
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 Tseng I Chang, Chen Cheng Chih filed Critical Tseng I Chang
Priority to IT5066378A priority Critical patent/IT1105400B/en
Publication of IT7850663A0 publication Critical patent/IT7850663A0/en
Application granted granted Critical
Publication of IT1105400B publication Critical patent/IT1105400B/en

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  • Input From Keyboards Or The Like (AREA)

Abstract

The loack actuated with push button has variable code. The lock is released when the push buttons are operated in a certain sequence, otherwise an alarm will be triggered. A keyboard has a rotating button switch arrangement and programme control circuit. The connection to the working contact of the rotating switches and the connection to the different push buttons of the keyboard can be established while the centre tapping or the contact of the rotating switches at rest are connected with the input connections of the programme control circuit or with the sequential circuit. Hence the programme or the control sequence of the programme control circuit or the sequential circuit can be varied by the rotation of rotating buttons.
IT5066378A 1978-08-09 1978-08-09 Electronic lock with keyboard and rotating switches - has code varied by rotating switches and operated by pushbutton IT1105400B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT5066378A IT1105400B (en) 1978-08-09 1978-08-09 Electronic lock with keyboard and rotating switches - has code varied by rotating switches and operated by pushbutton

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5066378A IT1105400B (en) 1978-08-09 1978-08-09 Electronic lock with keyboard and rotating switches - has code varied by rotating switches and operated by pushbutton

Publications (2)

Publication Number Publication Date
IT7850663A0 IT7850663A0 (en) 1978-08-09
IT1105400B true IT1105400B (en) 1985-10-28

Family

ID=11273486

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5066378A IT1105400B (en) 1978-08-09 1978-08-09 Electronic lock with keyboard and rotating switches - has code varied by rotating switches and operated by pushbutton

Country Status (1)

Country Link
IT (1) IT1105400B (en)

Also Published As

Publication number Publication date
IT7850663A0 (en) 1978-08-09

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