Diaphragm pump for needle threading
US4184443A · kind A · utility
0Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1979 |
| Grant date | Jan 22, 1980 |
| Priority date | — |
| Expiry date | Jan 17, 1999 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05D2207/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A pump for needle threading is disclosed having a housing with a recess therein, an elastomeric diaphragm stretched across said recess forming a pump cavity in which the medium being pumped is circulated, and inlet and outlet valves. An electronically controlled linear actuator is attached to the diaphragm within the pump cavity thereby allowing compactness in the construction of the pump and improved heat dissipation from the linear actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.