Pump stand

• US 8,344,875 B2
• Filed: 03/14/2008
• Issued: 01/01/2013
• Est. Priority Date: 04/03/2007
• Status: Active Grant

• Current Assignee: KNF Neuberger GmbH
• Original Assignee: KNF Neuberger GmbH
• Inventors: Becker, Erich, Hauser, Erwin
• Primary Examiner(s): TRIEU, VAN THANH
• Application Number:
  US12/594,630
• Publication Number:
  US 20100119379A1
• Time in Patent Office: 1,754 Days
• Field of Search: 340/539.1, 340/539.11, 340/691.1, 340/691.6, 340/636.1, 340/636.2, 62/78, 622/64, 361/230, 361/231, 34/92, 346/05, 700/245, 153/19, 153/20
• US Class Current: 340/539.11
• CPC Class Codes: F04B 45/00 Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
• CPC Class Codes: F04B 49/00 Control , e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
• CPC Class Codes: F04B 49/06 Control using electricity regulating by means of floats actuating electric switches F04B49/04

Abstract

A vacuum pump stand (1) for generating and regulating the vacuum intended for a rotary vaporizer, including a control device having a control connection to a control unit (4) having at least one control element (3, 6). In the pump stand (1), the control unit (4) is designed as a remote control unit having a wireless control connection to the control device of the pump stand. Laboratory personnel can thus observe the rotary evaporator and the associated pump stand (1) through the divider of a fume cupboard, in order to be able to modify and readjust the process parameters at the remote control panel as needed. Because the remote control unit (4) has a wireless control connection to the control device of the pump stand (1), the fume cupboard no longer needs to be opened, even momentarily. Rather, the pump stand (1) can be operated from a sufficient distance outside the fume cupboard without the laboratory personnel needing to be exposed to special hazards.

Claims

1. A pump stand (1), provided for generating and regulating a vacuum intended for a rotary evaporator, comprising a control device in a control connection to a control unit (4) including at least one control element (3, 6), a panel (5) to receive or support the control unit (4) is provided at the pump stand (1), which also comprises a contact system for power supply to a charging system for batteries located in the control unit (4), and the pump stand (1) can be operated either directly by the control unit (4) located on the panel (5) or wirelessly at a distance via the control unit (4) which is configured as a remote control unit (4) that, along with the batteries located therein, can be moved from a first position on the panel (5) to a second, remote location from the panel (5), and the control unit includes at least one touch-screen adapted to display processing parameters and is also configured as the control element allowing a user to at least one of select control functions or change the processing parameters.

2. A pump stand according to claim 1, wherein the remote control unit (4) comprises at least one of an optical or acoustical warning display, triggering an alarm as soon as the remote control unit (4) has at least one of left an operating range of the wireless data transmission or the control connection.

3. A pump stand according to claim 1, wherein the remote control unit (4) comprises at least one control button (3) as the control element, which serves to at least one of select the control functions or to change the processing parameters.

4. A pump stand according to claim 1, wherein particular primary functions of the control device can only be selected when the pump stand (1) is turned off.

5. A pump stand according to claim 1, wherein individual functions of the control device are arranged in a menu structure and that browsing through the individual menus occurs via the at least one control element (3, 6).

6. A pump stand according to claim 1, wherein an emergency switch is provided at least one of the pump stand (1) itself or at the remote control unit.

7. A pump stand according to claim 1, wherein the pump stand (1) comprises at least one diaphragm pump (2).