The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 1977
Filed:
May. 26, 1976
James B O'Maley, Lighthouse Point, FL (US);
Other;
Abstract
A pay telephone station monitor system which monitors the operation of a pay telephone station and detects malfunction of the pay station equipment. An alarm signal is produced upon detection of such malfunction which signal is transmitted to a central office to produce a visual output display upon predetermined occurrences of the alarm signals. The monitor system senses the impedances of the transmitter and receiver elements in the handset of the telephone, the time delay between removing the handset from the cradle and the occurrence of dial tone, and the delay between the onset of dial tone and dial tone break. The central office equipment produces a hierarchy of visual indications indicative of the number of times faults have occurred, and also gives a time reading since the occurrence of an initial fault or since the last successful use of the pay station. A coin box monitor can also be included to detect the height of coins in a coin box and transmit a signal to the central office when a predetermined height has been reached.