Liquid-tight strain relief
US10573436B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2017 |
| Grant date | Feb 25, 2020 |
| Priority date | — |
| Expiry date | Oct 30, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G15/013
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A liquid-tight strain relief includes a tubular-shaped bushing and a dome-shaped gland. The bushing includes a flange with arcuate slots, a centrally-located aperture, a plurality of resilient outer fingers, and a shoe slideably received within a lateral groove of the bushing. The gland includes a head having a centrally-located membrane. The head is co-molded with and encapsulates the flange, resulting in a strain relief having a unitary construction. The strain relief is adapted to be inserted within an orifice of a work piece, and the outer fingers frictionally engage the work piece. A cable is inserted within the strain relief by puncturing the membrane, which then stretches and provides a seal against the cable. The cable is gripped to the strain relief when the shoe is pressed against the cable. The shoe is held against the cable by teeth on the shoe, which engage opposing locking ribs on the bushing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.