IT1236619B - Detergent liq. metering pump driven by synchronous motor - Google Patents
Detergent liq. metering pump driven by synchronous motorInfo
- Publication number
- IT1236619B IT1236619B IT04174889A IT4174889A IT1236619B IT 1236619 B IT1236619 B IT 1236619B IT 04174889 A IT04174889 A IT 04174889A IT 4174889 A IT4174889 A IT 4174889A IT 1236619 B IT1236619 B IT 1236619B
- Authority
- IT
- Italy
- Prior art keywords
- liq
- synchronous motor
- detergent
- metering pump
- pump driven
- Prior art date
Links
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Reciprocating Pumps (AREA)
Abstract
The stator (3) and rotor of a permanent-magnet synchronous motor are accommodated in separate chambers. The rotary movement is transmitted by worm gear (13, 18) and an eccentric crank system (21-23) to a plastic piston (25) sliding in a hollow cylinder (26) defining a variable-vol. chamber (27). The liq. is pumped through inlet and outlet ducts (33, 34) with mushroom-headed valves (35, 36) and helical springs (39, 40), at a constant rate during a controlled number of strokes.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT04174889A IT1236619B (en) | 1989-11-17 | 1989-11-17 | Detergent liq. metering pump driven by synchronous motor |
EP19900121666 EP0433649A1 (en) | 1989-11-17 | 1990-11-13 | Fluid metering pump |
US07/612,378 US5088902A (en) | 1989-11-17 | 1990-11-14 | Piston type metering pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT04174889A IT1236619B (en) | 1989-11-17 | 1989-11-17 | Detergent liq. metering pump driven by synchronous motor |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8941748A0 IT8941748A0 (en) | 1989-11-17 |
IT8941748A1 IT8941748A1 (en) | 1991-05-17 |
IT1236619B true IT1236619B (en) | 1993-03-19 |
Family
ID=11253425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT04174889A IT1236619B (en) | 1989-11-17 | 1989-11-17 | Detergent liq. metering pump driven by synchronous motor |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1236619B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015049004A1 (en) * | 2013-10-03 | 2015-04-09 | Zobele Holding Spa | Device for dispensing substances |
-
1989
- 1989-11-17 IT IT04174889A patent/IT1236619B/en active IP Right Grant
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015049004A1 (en) * | 2013-10-03 | 2015-04-09 | Zobele Holding Spa | Device for dispensing substances |
US11371493B2 (en) | 2013-10-03 | 2022-06-28 | Zobele Holding S.P.A. | Device for dispensing a substance comprising a chamber defining a substance inlet, a substance outlet, an air inlet, and an air outlet, a piston located inside the chamber and whose movement causes the exit of both the substance and air to outside of the device |
Also Published As
Publication number | Publication date |
---|---|
IT8941748A0 (en) | 1989-11-17 |
IT8941748A1 (en) | 1991-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971126 |