Title:
DEVICE FOR REMOVING LIQUID MATERIALS FROM TWO STORAGE CONTAINERS
Document Type and Number:
WIPO Patent Application WO/2009/140776
Kind Code:
A3
Abstract:
The invention relates to a device (1), for removing liquid materials (M.1, M.2) from two storage containers (7.1, 7.2), comprising two largely identical pump units (2.1, 2.2) each with a bilge piston pump (3.1; 3.2), wherein the materials (M.1, M.2) may be pumped to a user (12) by means of the bilge piston pumps (3.1, 3.2). According to the invention, each of the pump units (2.1 and 2.2) comprises a dosing valve unit (13.1, 13.2), arranged between a branch line (14.1, 14.2) branching off the outlet line (11.1, 11.2) and a return line (15.1, 15.2), running to that chamber in which the material (M.1, M.2) is stored. Each of the pump units (2.1 and 2.2) has a stroke measuring unit (10.1, 10.2) by means of which the effective filling level of the storage container (7.1, 7.2) may be determined. Furthermore the device (1) is provided with a control body (35), by means of which the dosing valve units (13.1; 13.2) may be controlled, the corresponding storage container of which (7.1; 7.2) has a lower filling level. Both bilge piston pumps (3.1; 3.2) are driven with a given unchanging speed, wherein the controller is simplified with relation to the state of the art.
Inventors:
BRUNNER PETER (CH)
SUTER PETER (CH)
SUTER PETER (CH)
Application Number:
PCT/CH2009/000149
Publication Date:
December 02, 2010
Filing Date:
May 08, 2009
Export Citation:
Assignee:
DOPAG DOSIERTECHNIK UND PNEUMATIK AG (CH)
BRUNNER PETER (CH)
SUTER PETER (CH)
BRUNNER PETER (CH)
SUTER PETER (CH)
International Classes:
G05D11/00
Domestic Patent References:
| WO2003045130A1 | 2003-06-05 |
Foreign References:
| EP1331072B1 | 2004-09-22 | |||
| DE4403663C1 | 1995-08-17 |
Attorney, Agent or Firm:
ULRICH, Gerhard, H. (Sins, CH)
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