FR2426293A1 - Pen type electronic counter - has probe with microswitch operated by touching objects, and connected across equals button contacts - Google Patents

Pen type electronic counter - has probe with microswitch operated by touching objects, and connected across equals button contacts

Info

Publication number
FR2426293A1
FR2426293A1 FR7814698A FR7814698A FR2426293A1 FR 2426293 A1 FR2426293 A1 FR 2426293A1 FR 7814698 A FR7814698 A FR 7814698A FR 7814698 A FR7814698 A FR 7814698A FR 2426293 A1 FR2426293 A1 FR 2426293A1
Authority
FR
France
Prior art keywords
probe
equals
type electronic
pen type
electronic counter
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.)
Withdrawn
Application number
FR7814698A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7814698A priority Critical patent/FR2426293A1/en
Publication of FR2426293A1 publication Critical patent/FR2426293A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
    • G06F15/0225—User interface arrangements, e.g. keyboard, display; Interfaces to other computer systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Calculators And Similar Devices (AREA)

Abstract

The counting machiner includes a pocket calculator provided with a socket on the side, whose two terminals are connected to the contacts of the equals button. A probe which may be made like a pen is attached to a wire plugged into this socket. The probe includes a switch at the upper end operated by an axially moving shaft which projects from the lower end of the probe casing. A spring holds the shaft in position inside the probe, and allows it to move to actuate the switch, shorting out the "equals" button when an object to be counted is touched. The calculator may be set to count in numbers greater than one.
FR7814698A 1978-05-18 1978-05-18 Pen type electronic counter - has probe with microswitch operated by touching objects, and connected across equals button contacts Withdrawn FR2426293A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7814698A FR2426293A1 (en) 1978-05-18 1978-05-18 Pen type electronic counter - has probe with microswitch operated by touching objects, and connected across equals button contacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7814698A FR2426293A1 (en) 1978-05-18 1978-05-18 Pen type electronic counter - has probe with microswitch operated by touching objects, and connected across equals button contacts

Publications (1)

Publication Number Publication Date
FR2426293A1 true FR2426293A1 (en) 1979-12-14

Family

ID=9208379

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814698A Withdrawn FR2426293A1 (en) 1978-05-18 1978-05-18 Pen type electronic counter - has probe with microswitch operated by touching objects, and connected across equals button contacts

Country Status (1)

Country Link
FR (1) FR2426293A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611288A1 (en) * 1987-02-20 1988-08-26 Lumia Angelo Electronic counting with manual pulses

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1295307A (en) * 1969-04-14 1972-11-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1295307A (en) * 1969-04-14 1972-11-08

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/75 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611288A1 (en) * 1987-02-20 1988-08-26 Lumia Angelo Electronic counting with manual pulses

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Legal Events

Date Code Title Description
ST Notification of lapse