Method of driving powdery material into porous material of open-celled structure
US4204011A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1978 |
| Grant date | May 20, 1980 |
| Priority date | — |
| Expiry date | Jun 30, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/045
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of driving or permeating a powdery material into a porous material such as an open-cell cellular material or a fabric, of a type having an open-celled structure, that is, having interconnected cells. Permeation of the powdery material into the porous material is carried out by spreading a mass of powdery particles on one surface of the porous material and applying vibrations to the powdery particles through a vibrating element in contact with the particles so as to cause the particles to be uniformly distributed in the porous material. The frequency and amplitude of the vibrations are selected so as to minimize scattering of the powdery material, and are within the ranges of 50 to 50,000 Hz, and 50 to 1,500 .mu.m, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.