Method for mass production assembly of fluidic devices
US4304749A · kind A · utility
Inventor
Key dates
| Filing date | Feb 22, 1980 |
| Grant date | Dec 8, 1981 |
| Priority date | — |
| Expiry date | Feb 22, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/76
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method is disclosed for assembling fluidic spray devices wherein a fluidic element formed on the surface of a body member is expeditiously sealed to form the device. The essence of the invention is the injection molding of plastic around or through the body and a cover plate, or into a prefabricated housing into which the body member is inserted, to preload the parts and force them into a permanent sealed assembly. In one embodiment the preloading is achieved by shrinkage tension of injected plastic material surrounding or penetrating the parts. In a second embodiment the preloading is achieved by injecting plastic material into a gap or gaps in a product housing containing the body member so as to force the element surface against a sealing surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.