Method of making a compact fluid coupler for thermal inkjet print cartridge ink reservoir
US5464578A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1992 |
| Grant date | Nov 7, 1995 |
| Priority date | — |
| Expiry date | Mar 18, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2045/1665
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for joining two materials together to form a compact leak-resistant seal, particularly suited for use in thermal inkjet print cartridge ink reservoirs. The seal employs a shrink fit to clamp the two materials together. The method includes the steps of forming the first material into a desired first shot structure, placing the first shot structure in a second shot mold, and injecting the second material into the mold under adequate pressure and at an appropriate temperature. The second material has a high degree of mold shrinkage. Upon cooling, the second material shrinks tightly onto the first shot structure to form a molded joint which keeps air out and ink in when wetted and during normal shipping, storage, and operating conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.