Vibration mount for electronic assemblies
US4891734A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1988 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Jun 15, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/01
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An elastomeric body encapsulates an electronic assembly, to be protected from vibration on shock, and is confined in a closed cavity of a structure subject to the vibration and shock. The body is cast in a separate mold having a cavity corresponding in shape and size to the closed cavity. The surface of the mold has projections to form indentations in the surface of the body. With the body in the closed cavities, the indentations are effectively voids and accept elastomeric material displaced from the body when the body expands relative to the cavity. The preferred embodiment provides a strongback support with open cavities, each to receive a body. The strongback is inserted into a tube to complete the structure and close the open cavities. The strongback has wiring chambers to accept flexible leads connected to each body, and channels into which wire is potted, to extend from the leads to external circuitry. To retain the bodies in the open cavities before closing, the elastomer bodies have projections that resiliently engage cooperation surfaces in the cavities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.