Breakaway extension cord for preventing electrical plug damage
US5462452A · kind A · utility
Inventor
Key dates
| Filing date | Oct 20, 1994 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Oct 20, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S439/923
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A short electrical extension cord (10) is provided which is designed for use with large, mobile appliances (30) such as carpet shampooers or the like, in order to prevent damage to the male plug or electrical connector (34) forming a part of the appliance (30). The short extension cord (10) includes a short stretch of electrical cable (12) with a female electrical receptacle (16) and male electrical connector (18) operatively coupled to the cable stretch (12) adjacent the opposed ends thereof. In use, the male connector (18) is inserted into a stationary receptacle outlet (40), and the appliance male electrical connector (34) is inserted into female receptacle (16). In use of the appliance (30), the flexibility of cable stretch (12) assures that, in the event that an undue tension load is placed on appliance power cord (32), a separation occurs between appliance male electrical connector (34) and short extension cord female receptacle (16) prior to any damage to the male electrical connector ( 34).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.