Apparatus and method for protection of coin operated telephones
US5131035A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Apr 1, 1991 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Apr 1, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M17/026
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A protective cover is disclosed for coin operated telephones which includes a coin box for storage of coins and a coin return opening for providing the user with a refund of unused coins. The protective cover is constructed of heavy gauge protective steel plate and is dimensioned to extend across the entire width of the telephone while providing limited, but sufficient access to the coin return opening of the telephone by including a relatively small opening to provide such access. A door which blocks the opening in the steel plate is pivotally mounted to the rear surface of the plate and is dimensioned to pivot rearwardly when returned coins are retrieved by the user, thus preventing stuffing of the coin return area. The door is greater in the vertical dimension than the vertical dimension of the relatively small coin return access opening and includes a rearwardly depending flange at the lower edge portion and a forwardly depending flange along each vertical side portion to prevent tampering or stuffing of the opening. The vertical flanges are approximately equal in length to the vertical dimension of the opening and extend forwardly to the forward surface of the steel plate. Lim…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.