Armored telephone cord with a longitudinal strength member
US4518830A · kind A · utility
26Cited by
13References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1982 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Jun 25, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/15
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An armored cord has flexibility and tensile strength for securing a telephone handset to a telephone housing. The cord includes an outer armored sheath which is designed for increased flexibility in that it allows the cord to bend readily over small radii. Tensile strength between the handset and housing is provided by an internal cable which absorbs the stress applied to the cord when subjected to unusually large longitudinal forces. The service life of the cord is lengthened, and the number of incidents causing out-of-service conditions is thereby reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.