NZ524871A - Pneumatic pinch mechanism for a deformable tube - Google Patents
Pneumatic pinch mechanism for a deformable tubeInfo
- Publication number
- NZ524871A NZ524871A NZ524871A NZ52487101A NZ524871A NZ 524871 A NZ524871 A NZ 524871A NZ 524871 A NZ524871 A NZ 524871A NZ 52487101 A NZ52487101 A NZ 52487101A NZ 524871 A NZ524871 A NZ 524871A
- Authority
- NZ
- New Zealand
- Prior art keywords
- chamber
- deformable tube
- pinch mechanism
- pneumatic pinch
- piston
- Prior art date
Links
Landscapes
- Reciprocating Pumps (AREA)
Abstract
A pinch mechanism, which can be used as part of a pump, includes a deformable tube (10) enclosed within a body (11) which has a first chamber (11a). The deformable tube (10) defines a flow passage. A second chamber (19) is coupled via passage (17) to the first chamber (11a). A piston (20) is located within the second chamber (19) and movable between first and second positions. Upon moving to the first position a pressure increase occurs in the first chamber (11a). Upon moving to the second position a negative pressure is created in the first chamber (11a). A vent means (25) is located at a point during movement of the piston (20) between the first and second positions which enables pressure equalisation within the second chamber (19) to occur.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ524871A NZ524871A (en) | 2000-08-28 | 2001-08-24 | Pneumatic pinch mechanism for a deformable tube |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NZ50655200 | 2000-08-28 | ||
NZ51025601 | 2001-03-01 | ||
NZ524871A NZ524871A (en) | 2000-08-28 | 2001-08-24 | Pneumatic pinch mechanism for a deformable tube |
PCT/NZ2001/000172 WO2002018790A1 (en) | 2000-08-28 | 2001-08-24 | Pneumatic pinch mechanism for a deformable tube |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ524871A true NZ524871A (en) | 2006-03-31 |
Family
ID=36293217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ524871A NZ524871A (en) | 2000-08-28 | 2001-08-24 | Pneumatic pinch mechanism for a deformable tube |
Country Status (1)
Country | Link |
---|---|
NZ (1) | NZ524871A (en) |
-
2001
- 2001-08-24 NZ NZ524871A patent/NZ524871A/en unknown
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PSEA | Patent sealed | ||
RENW | Renewal (renewal fees accepted) |