Device having tank shaped to produce flow direction and improve temperature stability and uniformity

Patent metadata

Field	Value
Publication number	US-2018274992-A1
Application number	US-201715465105-A
Country	US
Kind code	A1
Filing date	Mar 21, 2017
Priority date	Mar 21, 2017
Publication date	Sep 27, 2018
Grant date	—

Abstract

A device includes a tank, a motor, and a fluid propulsion device, for example, a propeller that is coupled to the motor. The tank includes a bottom wall and side walls. A first surface of a first side wall forms an obtuse angle with a surface of the bottom wall. The fluid propulsion device is disposed inside the tank opposite the first surface of the first side wall. A first surface of a second side wall forms an obtuse angle with the surface of the bottom wall. Rounded corners may be disposed within the tank where pairs of adjacent side walls meet the bottom wall. Rounded surfaces may be formed where the side walls meet the bottom wall. The structure of the tank enables the propeller to rapidly disperse a fluid throughout the tank.

First claim

1 . A device, comprising:
a tank including a bottom wall and a plurality of side walls, the side walls including a first side wall having a first surface that forms a first obtuse angle with a surface of the bottom wall, and a second side wall having a first surface that forms a second obtuse angle with the surface of the bottom wall; a motor; and a fluid propulsion device coupled to the motor, the fluid propulsion device being disposed inside the tank opposite the first surface of the first side wall.

2 . The device of claim 1 , wherein the first side wall is opposite the second side wall.

3 . The device of claim 1 , wherein the first surface of the first side wall is longer than the first surface of the second side wall.

4 . The device of claim 1 , wherein the first side wall includes a second surface that extends from the first surface of the first side wall and forms a third obtuse angle with the first surface of the first side wall.

5 . The device of claim 4 , wherein the second side wall includes a second surface that extends from the first surface of the second side wall and forms a fourth obtuse angle with the first surface of the second side wall.

6 . The device of claim 5 , wherein the second surface of the second side wall is longer than the second surface of the first side wall.

7 . The device of claim 1 , wherein:
the side walls include the first side wall, the second side wall, a third side wall, and a fourth side wall; a first rounded corner is disposed within the tank where the first side wall, the third side wall, and the bottom wall meet; a second rounded corner is disposed within the tank where the first side wall, the fourth side wall, and the bottom wall meet; a third rounded corner is disposed within the tank where the second side wall, the third side wall, and the bottom wall meet; and a fourth rounded corner is disposed within the tank where the second side wall, the fourth side wall, and the bottom wall meet.

8 . The device of claim 7 , wherein:
a first rounded surface is disposed within the tank where the first side wall and the bottom wall meet; a second rounded surface is disposed within the tank where the second side wall and the bottom wall meet; a third rounded surface is disposed within the tank where the third side wall and the bottom wall meet; and a fourth rounded surface is disposed within the tank where the fourth side wall and the bottom wall meet.

9 . The device of claim 1 , further comprising:
a heater circuit which, in operation, generates heat within the tank.

10 . The device of claim 1 , further comprising:
one or more temperature sensors; and a controller coupled to the motor and the one or more temperature sensors, the controller, in operation, causing the motor to rotate at a plurality of speeds based on input from the one or more temperature sensors.

11 . The device of claim 1 , wherein each of the first surface of the first side wall, the first surface of the second side wall, and the surface of the bottom wall is flat.

12 . A device, comprising:
a tank including a bottom wall and a plurality of side walls, the side walls including a first side wall, a second side wall, a third side wall, and a fourth side wall; a motor; and a fluid propulsion device disposed inside the tank and coupled to the motor, wherein a first rounded corner is disposed within the tank where the first side wall, the third side wall, and the bottom wall meet, wherein a second rounded corner is disposed within the tank where the first side wall, the fourth side wall, and the bottom wall meet, wherein a third rounded corner is disposed within the tank where the second side wall, the third side wall, and the bottom wall meet, wherein a fourth rounded corner is disposed within the tank where the second side wall, the fourth side wall, and the bottom wall meet, wherein a first rounded surface is disposed within the tank where the first side wall and the bottom wall meet, wherein a second rounded surface is disposed within the tank where the second side wall and the bottom wall meet, wherein a third rounded surface is disposed within the tank where the third side wall and the bottom wall meet, and wherein a fourth rounded surface is disposed within the tank where the fourth side wall and the bottom wall meet.

13 . The device of claim 12 , wherein the first side wall is opposite the second side wall.

14 . The device of claim 12 , wherein the first surface of the first side wall is longer than the first surface of the second side wall.

15 . The device of claim 12 , wherein a first surface of the first side wall forms a first obtuse angle with a surface of the bottom wall, and a second surface of the first side wall that extends from the first surface of the first side wall forms a second obtuse angle with the first surface of the first side wall.

16 . The device of claim 15 , wherein a first surface of the second side wall forms a third obtuse angle with the surface of the bottom wall, and a second surface of the second side wall that extends from the first surface of the second side wall forms a fourth obtuse angle with the first surface of the second side wall.

17 . The device of claim 16 , wherein the second surface of the second side wall is longer than the second surface of the first side wall.

18 . The device of claim 12 , further comprising:
a heater circuit which, in operation, generates heat within the tank.

19 . The device of claim 12 , further comprising:
one or more temperature sensors; and a controller coupled to the motor and the one or more temperature sensors, the controller, in operation, causing the motor to rotate at a plurality of speeds based on input from the one or more temperature sensors.

20 . The device of claim 12 , wherein each of the first surface of the first side wall, the first surface of the second side wall, and the surface of the bottom wall is flat.

Assignees

• Fluke Corp

Inventors

• Farley David W
• Hirst Michael W

Classifications

• G01K15/002 Primary

  Calibrated temperature sources, temperature standards therefor (arrangements with respect to the cold junction of thermo-electric elements G01K7/12) · CPC title

• G01K15/005 Primary

  Calibration · CPC title