Telephone set
US4124785A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1978 |
| Grant date | Nov 7, 1978 |
| Priority date | — |
| Expiry date | Feb 14, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/0202
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A telephone set includes a unified internal chassis having individual cup portions for accommodating a transmitter and receiver. Each of these transducers is captured within its associated cup portion by a retaining member that is disposed about the perimeter of the transducer and the perimeter of the cup portion. A dial, which is mechanically and electrically separate from telephone network circuitry contained on a printed circuit, is secured to the chassis by fasteners, and the securing of the dial to the chassis serves to electrically connect the dial to the proper conductive paths of the speech network circuitry. The printed circuit and the components soldered thereto are only supported on the chassis by means of fastening devices and therefore the printed circuit is also readily disassembled from the chassis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.