MULTI-FUNCTION SINK WITH CENTRIFUGAL FOOD DRYER AND DRAIN
A multi-function sink includes a basin, a motor and a colander. Advantageously, the basin is supported by a frame, which frame is sized and shaped to fit into a corresponding aperture in a counter. Wet food is placed into the colander and the colander is placed into the basin. A sink-based coupler mates with a colander-based coupler. The user activates the motor, thereby causing the motor to rotate the colander and centrifugally dry the food. The building-in of the multi-function sink into a counter provides advantages over stand-alone centrifugal food driers in that the location of the food drier is readily known and, in those embodiments that include a faucet assembly, a ready supply of water is available for washing the food before centrifugally drying the food. Further advantageously, when the colander is removed, the multi-function sink may be used as a simple basin having a drain.
The present application relates generally to kitchen sinks and, more specifically, to a multi-function sink having a centrifugal food dryer and a drain.
BACKGROUND OF THE INVENTIONIn food preparation, it is common to thoroughly rinse food with tap water. Such rinsing acts to remove such “contaminants” as soil, dust and pesticides that can be deposited on the food during growing, picking, transportation or displaying. Unfortunately, such rinsing can leave the food particularly wet. Many foods are easily dried, such as those with small surface area. However, there are some foods with very large surface areas, e.g., lettuce, that are consequently very difficult to dry. To dry such difficult to dry foods, centrifugal food driers have been developed.
Such centrifugal food driers range from manually powered designs (see U.S. Pat. No. 4,209,916, issued to Doyel on Jul. 1, 1980), to battery powered designs (see U.S. Pat. No. 6,622,618, issued to Glucksman, et al. on Sep. 23, 2003), to designs powered by an electric motor (see U.S. Pat. No. 4,090,310, issued to Koff on May 23, 1978). While each of these designs have their merits, each generally requires a storage location in the kitchen. Furthermore, the user is required to remember the storage location each time the centrifugal food drier is to be used.
SUMMARYA centrifugal food drier is provided as part of a basin that is supported by a frame for ready installation into a corresponding aperture in a counter. The centrifugal food drier includes a frame, a basin supported by the frame, a colander sized to be received in the basin and a motor attached external to the basin, the motor adapted to rotate the colander when the colander is installed in the basin. Advantages over stand-alone centrifugal food driers are provided in that the location of the food drier is readily known and, in those embodiments that include a faucet assembly, a ready supply of water is available for washing the food before centrifugally drying the food. Furthermore, when the colander is not in the basin, the basin may be considered operable as a normal sink.
According to an aspect of the present invention, there is provided a multi-function sink apparatus. The multi-function sink apparatus includes a frame adapted to be installed in an aperture in a counter, a basin supported by the frame, a colander sized to be received in the basin and a motor attached external to the basin, the motor adapted to rotate the colander when the colander is installed in the basin.
Other aspects and features of the present invention will become apparent to those of ordinary skill in the art upon review of the following description of specific embodiments of the invention in conjunction with the accompanying figures.
Reference will now be made to the drawings, which show by way of example, embodiments of the invention, and in which:
A multi-function sink 20 is illustrated in
As is common in the art of sinks, the frame 22 and the basin 24 may be formed from stainless steel sheet metal. Additionally, the frame 22 and the basin 24 may be integrally formed from one piece of stainless steel sheet metal.
Attached to the frame 22 is a faucet assembly 32. The faucet assembly 32 includes a faucet base 34, to which are mounted valve control handles 36 and a spout 38. The faucet assembly 32 may be part of the multi-function sink 20; alternatively, the multi-function sink may be pre-cut with apertures sized and spatially arranged to accommodate an industry-standard faucet assembly.
An open end of the basin 24 is covered by a basin lid 26.
The opened position of the basin lid 26 exposes the interior of the basin 24. As illustrated in
As illustrated, the basin lid 26 includes two portions: an outer ring portion 29; and an inner circle portion 27. Either one or both of the two portions 27, 29 may be formed of transparent material, such as, for example, glass or transparent plastic, to allow a user to observe, through the four see-through apertures 82, the interior of the colander 40 while the basin lid 26 is in the closed position. Where one or both of the outer ring portion 29 and the inner circle portion 27 are opaque, the two portions 27, 29 may be formed of stainless steel sheet metal or plastic.
An annular channel 43 (see
Stainless steel sheet metal is considered to be suitable material for the colander 40 and the colander lid 42. In particular, such a material choice allows for the colander 40 to be used as part of a centrifugal food drier for drying hot foods, such as pasta, boiled green beans and rice, in an manner that may be ill-advised when certain types of plastics are used. Additionally, the material for the colander 40 and the colander lid 42 should be chosen so that the colander 40 and the colander lid 42 may be placed in a dishwasher for cleaning without concern for the structural integrity (i.e., melting) of material while the colander 40 and the colander lid 42 are being cleaned. This is not to say that plastic is a poor choice for a material for the colander 40 and the colander lid 42, simply that the thermal properties of a plastic under consideration for the colander 40 and the colander lid 42 should be carefully considered.
The top, right perspective view of the multi-function sink 20 illustrated in
As will be clear to a person of ordinary skill in the art, the basin drain stopper 53 is a removable means of preventing water from exiting the basin 24 through the basin drain outlet 52. Other terms for such devices with the same function include plug, bung, cork and stopple. The bottom of the exemplary basin 24 is illustrated as having a circular shape and the sink-based coupler 56 is positioned at the center of the circular shape, while the basin drain outlet 52 is positioned offset from the center. A colander-based coupler 58 is shown in the bottom, front perspective view of the colander 40 illustrated in
In the bottom, right, front perspective view of the multi-function sink 20 illustrated in
A drain pipe 44 is attached to the outside of the basin drain outlet 52.
As should be clear to a person of ordinary skill in the art, the mechanical seal 76 should provide a water-tight seal between the inside of the basin 24 and the outside of the basin 24. As a result of such a water-tight seal, water that accumulates in the basin 24 will generally exit the basin 24 via the drain pipe 44, when allowed to do so by removal of the basin drain stopper 53 from the basin drain outlet 52.
A control user interface is provided by a set of control electronics in an electronics housing 54 mounted to the frame 22. The control user interface is illustrated (see
As will be understood by a person of ordinary skill in the art, the control electronics in the electronics housing 54 are required to have a connection to the motor 46 and the motor 46 requires a source of energy. Commonly, the connection between the motor 46 and the electronics housing 54 is a wired connection. However, for simplicity of illustration, the connecting wires have been omitted from the figures. Similarly, wires providing household alternating electrical current to the motor 46 have also been omitted. In one embodiment, the connection between the motor 46 and the electronics housing 54 is a wireless connection, for instance, using the known Bluetooth™ protocol. Additionally, the motor 46 may receive necessary power from one or more replaceable batteries.
In overview, the multi-function sink 20 includes the basin 24, the motor 46 and the colander 40. Advantageously, the basin 24 is supported by the frame 22, which frame 22 is sized and shaped to fit into a corresponding aperture in a counter. The building-in of the multi-function sink 20 into a counter provides advantages over stand-alone centrifugal food driers in that the location of the food drier is readily known and, in those embodiments that include the faucet assembly 32, a ready supply of water is available for washing the food before centrifugally drying the food. Further advantageously, when the colander 40 is removed, the multi-function sink 20 may be used as a simple basin with a drain (the basin drain outlet 52) and, optionally, a water source (the faucet assembly 32).
In operation, a user lifts the ring pull 30, thereby drawing the locking plate 91 against the bias of the locking plate spring 94 and out of the aperture in the protrusion 31 and allowing the basin lid 26 to be opened. Wet food, such as leaves of lettuce, is placed into the colander 40 and the colander 40 is placed into the open basin 24. The sink-based coupler 56 mates with the colander-based coupler 58.
The basin lid 26, with the colander lid 42 attached thereto, is closed by the user in a manner that allows the colander lid 42 to engage with the upper lip of the colander 40. Additionally, a beveled edge of the locking plate 91 meets a beveled edge of the protrusion and forces the locking plate 91 against the bias of the locking plate spring 94. As the basin lid 26 is further closed, the locking plate 91 is biased by the locking plate spring 94 into the aperture in the protrusion 31, thereby locking the basin lid 26 to the basin 24. Additionally, the button 93 is compressed into the safety switch 96.
The user presses the power button 60 to activate the motor 46, thereby causing the motor 46 to rotate the motor shaft 71 and, consequently, the motor sheave 72. Rotation of the motor sheave 72 is transmitted to rotation of the basin sheave 50 by the belt 48. Rotation of the basin sheave 50 causes rotation of the basin shaft 74 and, consequently, rotation of the sink-based coupler 56. Rotation of the sink-based coupler 56 leads directly to rotation of the colander-based coupler 58 and, consequently, the colander 40.
The rotation of wet items in a centrifugal drier is well known and such technology has been used for decades in drying clothes. The specific rotation of wet food in a centrifugal food drier is also well known and a device for centrifugally drying food is known colloquially as a “salad spinner”. Moisture on the leaves of lettuce is encouraged, by centrifugal forces, off the leaves of lettuce and toward the wall of the colander 40. In a typical, stand-alone, consumer-directed salad spinner, the force that causes the colander to rotate is manual. In a food service industry-directed salad spinner, it is more likely that the force that causes the colander to rotate is an electric motor.
As the wall of the colander 40 is perforated, the water departs the colander and is flung against the wall of the basin 24. Through the action of gravity, the moisture received on the wall of the basin 24, collects at the bottom of the basin 24. If the basin drain outlet 52 is open, the moisture then leaves the basin 24 and enters the drain pipe 44 on a path toward, for instance, a sewer or septic system.
As will be clear to a person of ordinary skill in the art, the transmission of rotation of the motor 46 to rotation of the colander 40 may be accomplished in any one of a number of ways. For a first exemplary alternative, in a direct drive mode, the sink-based coupler 56 is attached to the motor shaft 71. For a second exemplary alternative, rather than using the belt-drive combination of the motor sheave 72, the basin sheave 50 and the belt 48, a gear-drive is used to transmit rotation of the motor 46 to rotation of the colander 40. The gear-drive includes, in one embodiment, a motor spur gear attached to the motor shaft 71 and a basin spur gear may be attached to the basin shaft 74 such that the motor spur gear and the basin spur gear intermesh. Accordingly, rotation of the motor shaft 71 may be transmitted to rotation of the basin shaft 74. The gear-drive includes, in a further embodiment, a gear train (two or more gears) in a gearbox. The gears in the gearbox may include other types of gears, such as helical gears, bevel gears, worm gears, etc.
It has been recognized that known food service industry-directed salad spinners are only provided with a single speed of rotation. It should be understood that the speed of rotation relates directly to the degree or drying that is possible with the centrifugal food drying function of the multi-function sink 20. Furthermore, the degree of force against the side of the colander 40 experienced by the food being dried is also a function of the speed of the rotation of the colander 40. Since a user may desire a slower speed for drying delicate foods, e.g., strawberries, and can put up with a corresponding lesser degree of drying, the multi-function sink 20 may been provided with the control user interface mounted in the electronics housing 54. The user may employ the control user interface, and, in particular, the low speed selection button 62 and the high speed selection button 64, to select between two speeds of rotation of the motor 46 for a desired speed for the food being dried.
Notably, when the button 93 is not compressed into the safety switch 96, i.e., while the basin lid 26 is in the opened position, activation of the motor 46 is disabled. Conversely, when the button 93 is compressed into the safety switch 96, i.e., while the basin lid 26 is in the closed position, activation of the motor 46 is enabled.
As illustrated in
Another class of sinks known as “bottom-mount” or “under-mount” sinks are available, which are installed below the countertop surface. The edge of the countertop material is exposed at the aperture created for the sink. The multi-function sink 20 would then be clamped to the bottom of the material from below.
Distinct from the multi-function sink 20 of
The above-described embodiments of the present application are intended to be examples only. Alterations, modifications and variations may be effected to the particular embodiments by those skilled in the art without departing from the scope of the application, which is defined by the claims appended hereto.
Claims
1. A multi-function sink apparatus comprising:
- a frame adapted to be installed in an aperture in a counter;
- a basin supported by said frame, said basin having a drain outlet;
- a colander sized to be received in said basin; and
- a motor attached external to said basin, said motor adapted to rotate said colander when said colander is installed in said basin.
2. The multi-function sink apparatus of claim 1 further comprising a basin lid for forming a releasable seal closing an open top end of said basin.
3. The multi-function sink apparatus of claim 2 further comprising a colander lid for forming a releasable seal closing an open top end of said colander, said colander lid arranged to engage said colander and rotate with said colander.
4. The multi-function sink apparatus of claim 3 wherein said basin lid includes a transparent section and said colander lid defines a viewing aperture allowing viewing of an interior of said colander through said transparent section and said viewing aperture.
5. The multi-function sink apparatus of claim 3 wherein said colander lid attaches to said basin lid in a manner that allows said colander lid to rotate while said basin lid remains static.
6. The multi-function sink apparatus of claim 2 further comprising a safety switch adapted to enable said motor only when said basin lid is closed.
7. The multi-function sink apparatus of claim 1 wherein said motor is further adapted to rotate a shaft extending into an interior of said basin.
8. The multi-function sink apparatus of claim 7 wherein said motor directly drives said shaft.
9. The multi-function sink apparatus of claim 7 wherein said motor drives said shaft using a belt-drive, wherein said motor drives a first sheave that transmits rotation to a second sheave on said shaft using a belt.
10. The multi-function sink apparatus of claim 7 wherein said motor drives said shaft using a gear-drive, wherein said motor drives a first gear and rotation of said first gear is transmitted to a second gear on said shaft.
11. The multi-function sink apparatus of claim 1 wherein said motor has a plurality of predetermined rotational velocities and said apparatus further comprises a controller for said motor, said controller having a user interface that allows a user to select a candidate rotational velocity from among said plurality of predetermined rotational velocities.
12. The multi-function sink apparatus of claim 11 wherein said plurality of predetermined rotational velocities include a high speed and a low speed.
13. The multi-function sink apparatus of claim 1 further comprising a second basin supported by said frame.
14. The multi-function sink apparatus of claim 1 wherein said basin and said frame are formed from a single piece of sheet metal.
15. The multi-function sink apparatus of claim 1 further comprising a faucet positioned adjacent to said basin to dispense liquid into said basin.
16. The multi-function sink apparatus of claim 15 wherein said a faucet is mounted to said basin.
17. The multi-function sink apparatus of claim 1 wherein said basin further comprises a removable stopper corresponding to said drain outlet.
Type: Application
Filed: Oct 31, 2007
Publication Date: Nov 6, 2008
Inventors: QIAN WANG (Brampton), YIXIN CHEN (Brampton), ANDY LAM (Scarborough)
Application Number: 11/930,853