Screw-in vent plug for lead-acid batteries
US7101640B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2000 |
| Grant date | Sep 5, 2006 |
| Priority date | — |
| Expiry date | Jun 19, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4911
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A venting plug for a wet, lead-acid storage battery, a battery containing the same, a method of molding the venting plug body, and a mold for molding the venting plug body are disclosed. The sealing surfaces of the venting plug do not include a mold parting line along which acid from inside of the battery could seep between the seal and sealing surfaces. The venting plug body, however, includes a coupling structure that includes a mold parting line. The sealing surfaces of the venting plug body are molded by a single plate such that no mold parting line results along the sealing surfaces, while the coupling structure is molded by plurality of mold components such that a mold parting line results in the vicinity of the coupling structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.