GB2221586A - Lock for telephone line jack unit - Google Patents

Lock for telephone line jack unit Download PDF

Info

Publication number
GB2221586A
GB2221586A GB8912763A GB8912763A GB2221586A GB 2221586 A GB2221586 A GB 2221586A GB 8912763 A GB8912763 A GB 8912763A GB 8912763 A GB8912763 A GB 8912763A GB 2221586 A GB2221586 A GB 2221586A
Authority
GB
United Kingdom
Prior art keywords
telephone
lock
jack unit
line jack
shank member
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Withdrawn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
GB8912763A
Other versions
GB8912763D0 (en
Inventor
Denis Mcdaid
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
Publication of GB8912763D0 publication Critical patent/GB8912763D0/en
Publication of GB2221586A publication Critical patent/GB2221586A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/667—Preventing unauthorised calls from a telephone set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H01R13/6397—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap with means for preventing unauthorised use

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention provides a telephone lock 10 for preventing the plug of a telephone from being inserted into a corresponding link jack unit, comprising a locking means 11 including a shank member 13 of a suitable length and size to be accommodated in the socket of the line jack unit in substitution for the telephone plug proper. The shank member 13 has a movable locking member 15 located at the free end thereof and is arranged to be in use moved by the locking means 11 to engage a part of the line jack unit socket 17 to prevent removal of the telephone lock from the line jack unit. The lock 10 may include a housing 20 that covers the socket 17 and jack unit 20. <IMAGE>

Description

TELEPHONE LOCK The present invention relates to a telephone lock, and in particular a lock which prevents the plug of a telephone from being inserted into a line jack unit.
It is now common for telephones to have a cable which terminates in a plug, this plug being inserted into a socket in a line jack unit which is normally fixed to a wall or other structure in a room. The line jack unit is a conventional apparatus which includes a socket into which the telephone plug is inserted to connect the telephone to a telephone line.
An object of the present invention is to provide a telephone lock which prevents the plug of a telephone from being inserted from into a corresponding line jack unit.
According to the invention there is provided a telephone lock for preventing the plug of a telephone from being inserted into a corresponding line jack unit, comprising a locking means including a shank member of a suitable length and size to be accommodated in the socket of the line jack unit in substitution for the telephone plug proper, the shank member having a movable locking member located at the free end thereof and arranged to be in use moved by the locking means to engage a part of the line jack unit socket to prevent removal of the telephone lock from the line jack unit.
Preferably, the locking member is rotatably mounted on the free end of the shank member, and operable by means of the barrel lock. The locking member is preferably rotatable from a position in line with the shank member corresponding to an unlocked position, to a position at right angles to the shank member corresponding to a locked position.
The locking member is preferably connected to the locking means by a pin passing through the shank member.
In a preferred form of the invention the locking means comprises a key operated barrel lock.
An embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a perspective view of a telephone lock according to the invention; Figure 2 is a front view of a line jack unit which is normally fixed to a wall and which receives the plug of a telephone; and Figure 3 is a cross-sectional view of the telephone lock of Figure 1 in use in the line jack unit of Figure 2.
Referring now to ths drawings wherein similar numerals have been used to indicate like parts, there is shown therein a telephone lock generally indicated at 10 according to the invention. The telephone lock 10 comprises a barrel lock 11 operated in conventional manner by means of a key 12. Further, the telephone lock 10 includes a shank member 13 integrally formed with the housing 14 of the barrel lock 11. A locking member 15 is mounted adjacent the free end 16 of the shank member 13, by means of a pin (not shown) which passes through the shank member 13. The pin which passes through the shank member 13, is also connected to the operating mechanism of the barrel lock 11 so that the locking member 15 is rotatable from a position as shown in line with the shank member 13, to a position shown in dotted outline at 15' at right angles to the shank member 13.
In use, the shank member 13 is inserted into the socket 17 of the line jack unit 18 as shown in Figure 3.
The shank member 13 may have suitable grooves 19 to enable it to be suitably accommodated in the socket 17, in substitution for a telephone plug proper. It will be noted that the socket 17 extends rearwardly in the line jack unit 18 and the shank member 13 is slightly longer than the socket 17 so that when in use the locking member 15 is located behind the socket 17.
The locking member 15 is then rotated to a position at right angles to the shank member 13 by operating the barrel lock 11 so that the locking member 15 engages behind the socket 17 as shown. To remove the lock 10 from the line jack unit 18 the barrel lock is simply operated again to rotate the locking member 15 to the position in line with the shank member 13 and the lock 10 is then removed from the socket 17 of the line jack unit 18.
In another embodiment of the invention the lock 10 may be integrally formed in a housing indicated in dotted outline at 20, which fits over the line jack unit 18 to provide a more aesthetic appearance.
The main advantage of the invention is that it is simple to operate requiring only the removal of the conventional telephone plug. The invention is also inexpensive to manufacture.

Claims (7)

CLAIMS:
1. A telephone lock for preventing the plug of a telephone from being inserted into a corresponding line jack unit, comprising a locking means including a shank member of a suitable length and size to be accomodated in the socket of the line jack unit in substitution for the telephone plug proper, the shank member having a movable locking member located at the free end thereof and arranged to be in use moved by the locking means to engage a part of the line jack unit socket to prevent removal of the telephone lock from the line jack unit.
2. A telephone lock as claimed in Claim 1, wherein the locking member is rotatably mounted on the free end of the shank member and is operable by means of the locking means.
3. A telephone lock as claimed in Claim 2, wherein the locking member is rotatable from a position in line with the shank member corresponding to an unlocked position, to a position substantially at right angles to the shank member corrresponding to a locked position.
4. A telephone lock as claimed in Claim 2 or 3, wherein the locking member is connected to the locking means by a pin passing through the shank member.
5. A telephone lock as claimed in any preceding claim wherein the locking means comprises a key operated barrel lock.
6. A telephone lock as claimed in any preceding claim wherein the locking means is fixed in a housing.
7. A telephone lock substantially as herein described with reference to and as illustrated in Figure 1 or Figure 3.
GB8912763A 1988-06-02 1989-06-02 Lock for telephone line jack unit Withdrawn GB2221586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE330888 1988-06-02

Publications (2)

Publication Number Publication Date
GB8912763D0 GB8912763D0 (en) 1989-07-19
GB2221586A true GB2221586A (en) 1990-02-07

Family

ID=11038371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8912763A Withdrawn GB2221586A (en) 1988-06-02 1989-06-02 Lock for telephone line jack unit

Country Status (1)

Country Link
GB (1) GB2221586A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232306A (en) * 1989-04-26 1990-12-05 Stanislaw Jerzy Przylipiak Preventing the use of a telephone line
EP0424034A2 (en) * 1989-10-16 1991-04-24 McDaid, Denis Telephone Lock

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB935829A (en) * 1958-12-05 1963-09-04 Hettie Shrusha Dony Improvements in or relating to safety devices for electrical apparatus
FR2526234A1 (en) * 1982-04-30 1983-11-04 Montiege Ets Lockable jack-socket for telephone or computer networks - has rotating internal blocking plate which can be set to prevent introduction of jack plug
FR2545658A2 (en) * 1982-04-30 1984-11-09 Montiege Ets Plug-in disconnectable connection locking device especially for a telephone set
GB2186746A (en) * 1986-02-05 1987-08-19 Timothy Shorrock Dummy plugs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB935829A (en) * 1958-12-05 1963-09-04 Hettie Shrusha Dony Improvements in or relating to safety devices for electrical apparatus
FR2526234A1 (en) * 1982-04-30 1983-11-04 Montiege Ets Lockable jack-socket for telephone or computer networks - has rotating internal blocking plate which can be set to prevent introduction of jack plug
FR2545658A2 (en) * 1982-04-30 1984-11-09 Montiege Ets Plug-in disconnectable connection locking device especially for a telephone set
GB2186746A (en) * 1986-02-05 1987-08-19 Timothy Shorrock Dummy plugs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2232306A (en) * 1989-04-26 1990-12-05 Stanislaw Jerzy Przylipiak Preventing the use of a telephone line
GB2232306B (en) * 1989-04-26 1993-09-29 Stanislaw Jerzy Przylipiak Device for preventing use of a telephone line
EP0424034A2 (en) * 1989-10-16 1991-04-24 McDaid, Denis Telephone Lock
EP0424034A3 (en) * 1989-10-16 1992-02-26 Denis Mcdaid Telephone lock

Also Published As

Publication number Publication date
GB8912763D0 (en) 1989-07-19

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)