System for generating substantially constant fluid pressure
US4842576A · kind A · utility
44Cited by
33References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1986 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Oct 15, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/50
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system for generating substantially constant fluid pressure is provided for forcing fluid from a variable volume container. The system includes a roller that rotates in response to a constant applied torque to force fluid from the flexible container under a substantially constant pressure. Two spaced apart parallel rollers can exert force on both sides of the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.