Telephone security attachment

• US 4,297,539 A
• Filed: 02/27/1980
• Issued: 10/27/1981
• Est. Priority Date: 02/27/1980
• Status: Expired due to Term

• Current Assignee: Thomas L. Fairbanks
• Original Assignee: Thomas L. Fairbanks
• Inventors: Fairbanks, Thomas L.
• Primary Examiner(s): Brigance, Gerald L.
• Application Number:
  US06/125,033
• Time in Patent Office: 608 Days
• Field of Search: 179/189 R, 179/189 D, 179/90 D, 179/6.3 R, 179/6.5, 179/18 DA
• US Class Current: 379/445
• CPC Class Codes: H04M 1/667 Preventing unauthorised calls from a telephone set H04M1/677 takes precedence

Abstract

A security attachment removably locked to a telephone instrument base without interfering with the use of the hand-set, and comprised of an integral construction adapted to be hooked to spaced front and cradle features of the base and having a planar portion overlying the dial of the instrument and with an at least one aperture therein, for limited dialing.

Claims

1. A security attachment for restricting the use of a telephone comprised of a base and a liftable hand-set, the base having a hand-set cradle and a dial extending forwardly from the cradle to the front end of the base and comprised of a plurality of push buttons representing the digits "0" through "9";

the attachment including integral planar body portions overlying the cradle and dial and front end of the base, the overlying front portion having an extension with hooked engagement beneath a bottom of the base, the body portion overlying the cradle being engageable with the cradle of the base, and the body portion overlying the dial being held in spaced relation from the dial on the base and having at least one finger aperture therethrough for access to a push button, there being lock means carried by the cradle portion of the attachment to releasably hook with the cradle of the base in opposition to said hooked engagement of the front portion.

2. The telephone security attachment as set forth in claim 1, wherein the said overlying dial portion of the attachment has two finger apertures therethrough for access to a pair of code identifiable push buttons for completing authorized calls.

3. The telephone security attachment as set forth in claim 1, wherein a shelf extends transversely of the base between laterally spaced and upwardly open recesses of the cradle and spaced below the supporting plane of said recesses that receive the hand-set, wherein the planar overlying shelf portion of the attachment lies within the spaced recesses and upon the shelf of the base whereby the hand-set is received by said spaced cradle recesses, wherein the lock means engages a rear edge of the shelf of the base and includes an arm releasably engageable beneath said shelf of the base, and wherein the said overlying dial portion of the attachment having two finger apertures therethrough for access to a pair of code indentifiable push buttons for completing authorized calls.