1. An aeration system, comprising:
a housing;
a fluid inlet disposed at a first end of the housing;
an outlet disposed at a second end of the housing;
a cylindrical support member rotatably mounted within the housing between the inlet and the outlet, and supported therein by a plurality of bearings, the support member having an interior surface enclosing an interior cavity, the interior cavity being in communication with the fluid inlet and the outlet;
at least one vane disposed on the interior surface of the support member and extending from the interior surface towards the rotational axis of the support member, the at least one vane including an inner edge positioned such that a gap is defined between the inner edge of the at least one vane and the rotational axis of the support member;
at least one gas inlet in communication with the interior cavity of the support member; and
a motive device for rotating the support member within the housing; and
a jacket surrounding the housing and positioned so as to define a gap between the jacket and housing, the jacket including an inlet aperture positioned proximate the fluid inlet and an outlet aperture positioned proximate the outlet;
the jacket being adapted to direct a portion of an aerated fluid stream exiting the outlet and redirect the portion of the aerated fluid stream towards the fluid inlet.
2. The aeration system of claim 1, wherein the inner edge of the at least one vane is serrated.
3. The aeration system of claim 1, wherein the fluid inlet functions as the at least one gas inlet.
4. The aeration system of claim 1, wherein the at least one gas inlet includes a manifold.
5. The aeration system of claim 1, further comprising:
a supplementary gas inlet; and
a cavity defined in the housing; the cavity being in communication with the supplementary gas inlet and the interior cavity of the support member.
6. The aeration system of claim 1, further comprising a fluid directing structure coupled to the second end of the housing and in communication with the outlet.
7. The aeration system of claim 5, further comprising a plurality of plates disposed within a fluid directing structure.
8. The aeration system of claim 1, further comprising a plurality of fins coupled to the first end of the housing proximate the inlet.
9. The aeration system of claim 8, further comprising a clearance between an edge of the at least one vane and an edge of a fin.
10. An aeration system, comprising:
a cylindrical support member rotatably mounted within a housing, and supported therein by a plurality of bearings, the support member having an interior surface enclosing an interior cavity, the interior cavity being in communication with a fluid inlet disposed at a first end of the housing and an outlet disposed at a second end of the housing;
a plurality of vanes disposed on the interior surface of the support member and extending from the interior surface towards the rotational axis of the support member, each vane including an inner edge;
a bore defined by the inner edges of the plurality of vanes, the bore extending longitudinally through the support member and disposed concentrically with the rotational axis of the support member; and
a motive device for rotating the support member within the housing; and
a jacket surrounding the housing and positioned so as to define a gap between the jacket and housing, the jacket including an inlet aperture positioned proximate the fluid inlet and an outlet aperture positioned proximate the outlet;
the jacket being adapted to direct a portion of an aerated fluid stream exiting the outlet and redirect the portion of the aerated fluid stream towards the fluid inlet.
11. The aeration system of claim 10, wherein the inner edge of the at least one vane is serrated.
12. The aeration system of claim 10, wherein the fluid inlet functions as at least one gas inlet.
13. The aeration system of claim 10, wherein at least one gas inlet includes a manifold.
14. The aeration system of claim 10, further comprising:
a supplementary gas inlet; and
a cavity defined in the housing; the cavity being in communication with the supplementary gas inlet and the interior cavity of the support member.
15. The aeration system of claim 10, further comprising a fluid directing structure coupled to the second end of the housing and in communication with the outlet.
16. The aeration system of claim 15, further comprising a plurality of plates disposed within the fluid directing structure.
17. The aeration system of claim 10, further comprising a plurality of fins coupled to the first end of the housing proximate the inlet.
18. The aeration system of claim 17, further comprising a clearance between an edge of the at least one vane and an edge of a fin.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A printer that can drive a cash drawer connected thereto, comprising:
a drive circuit unit that supplies power for driving an actuator in order to open the cash drawer tray;
a resistance detection unit that detects the resistance of the actuator; and
a drive switching unit that switches to connect the drive circuit unit or connect the resistance detection unit to the actuator.
2. The printer described in claim 1, further comprising:
an error notification unit that prohibits actuator drive from the drive circuit unit and reports an error when the actuator resistance detected by the resistance detection unit is other than a specified value.
3. The printer described in claim 1, wherein:
the drive switching unit is switched so that the resistance detection unit is connected to the actuator and detects the resistance of the actuator when the cash drawer is connected.
4. The printer described in claim 1, wherein:
the drive switching unit is switched so that the resistance detection unit is connected to the actuator and detects the resistance of the actuator when the power turns on, a self-diagnostic test executes, or before driving the cash drawer.
5. The printer described in claim 1, wherein:
the printer can be connected to a host computer; and
receives a command that is sent from the host computer and instructs detecting the actuator resistance, switches the drive switching unit to connect the resistance detection unit to the actuator, and detects the actuator resistance.
6. A control method for a cash drawer drive device that can drive a cash drawer and has a drive circuit unit that supplies power to an actuator that openscloses the cash drawer, a resistance detection unit that detects the resistance of the actuator, a drive switching unit that switches to connect the drive circuit unit or connect the resistance detection unit to the actuator, and an error notification unit, the control method comprising steps of:
switching the drive switching unit to the resistance detection unit side;
pre-energizing the cash drawer and detecting the actuator resistance; and
comparing the detected actuator resistance with a specified value, and
prohibiting actuator drive from the drive circuit unit when the detected actuator resistance is other than a specified value.
7. A control method described in claim 6, wherein:
supplying power to drive the actuator when the detector actuator resistance is a value within the specified value.
8. A control program for a cash drawer drive device that causes the printer control unit to execute the steps of the cash drawer drive device control method described in claim 6.
9. A cash drawer drive device that can drive a cash drawer connected thereto, comprising:
a drive circuit unit that supplies drive current for driving an actuator to openclose the cash drawer;
a resistance detection unit that detects the resistance of the actuator; and
a drive switching unit that switches to connect the drive circuit unit or connect the resistance detection unit to the actuator.
10. The cash drawer drive device described in claim 9, further comprising:
an error notification unit that prohibits actuator drive from the drive circuit unit and reports an error when the actuator resistance detected by the resistance detection unit is other than a specified value.
11. The cash drawer drive device described in claim 9, wherein:
the drive switching unit is switched so that the resistance detection unit is connected to the actuator and detects the resistance of the actuator when the cash drawer is connected.
12. The cash drawer drive device described in claim 9, wherein:
the drive switching unit is switched so that the resistance detection unit is connected to the actuator and detects the resistance of the actuator when the power turns on, a self-diagnostic test executes, or before driving the cash drawer.
13. The cash drawer drive device described in claim 9, wherein:
the cash drawer drive device can be connected to a host computer; and
receives a command that is sent from the host computer and instructs detecting the actuator resistance, switches the drive switching unit to connect the resistance detection unit to the actuator, and detects the actuator resistance.