Validator-controlled apparatus
US4312436A · kind A · utility
Inventors
Key dates
| Filing date | Jul 27, 1979 |
| Grant date | Jan 26, 1982 |
| Priority date | — |
| Expiry date | Jul 27, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07F17/0014
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Validator-controlled apparatus responsive to the inspection and validation of a plaque as genuine cooperating with a timer to control the power supply to and operation of a plurality of electrical components for one or consecutive predetermined periods. In an illustrative application of the apparatus, the validator inspects and authenticates a coded plaque of paper currency or a coded card as a prerequisite to the control and use of a room for a measured period of time equipped with one or more electrical components. One of the controlled components is a lock for the room door or barrier which re-locks after entrance of the patron or patrons and remains locked from its exterior but is manually releasable from the interior at any time. The apparatus includes provision for disabling the plaque validator and the door lock during the decrement of an existing predetermined time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.