Tailcap insert
US5003440A · kind A · utility
53Cited by
6References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 17, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | May 17, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21V31/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The flashlight having a conductive barrel and a tailcap insert which provides for enhanced mechanical and electrical contact between the barrel and the batteries, provides for retaining a tailcap spring to the tailcap upon removal of the tailcap from the barrel, provides retainers to prevent the tailcap insert contacts from over radial extension and/or provides a one-way flow seal to permit outflow of gases produced during flashlight operation but to prevent ingress of material from ambient to within the battery housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.