Food products washing and drying machine

A greens or vegetable washing and drying machine has a spinner basket removeably receivable on a spinner table comprising part of a housing assembly including means for spraying pressured household supply water into the basket for washing. The pressurized water is also utilized to run a water turbine for rotating the spinner table and the spinner basket received thereon after the greens, vegetables or other food products have been thus washed.

This invention relates primarily to salad and leafy vegetable preparation 
devices and is directed particularly to a novel and improved food products 
washing and drying machine for use in the home, small restaurants and the 
like where comparatively small amounts of food products are to be prepared 
for prompt serving. 
There is presently available a wide variety of salad and greens or 
vegetable washing and drying machines with centrifical water extractors, 
ranging from hand-held, manually-operated spinner baskets for use in the 
home to free-standing electric motor operated spinner drums for use in 
medium size and large restaurants. This invention is directed to an 
intermediate size vegetable washing and drying machine having novel and 
improved features that make it particularly well suited for small volume 
production. It is therefore particularly advantageous for use in the 
preparation of vegetables and salads in large family homes, and low-volume 
restaurants and lunch counter establishments. 
It is, accordingly, the principal object of this invention to provide a 
novel and improved vegetable washing and drying machine of the character 
described that is of such small size and weight, and so compact, as to be 
receivable for use when placed within or attached under an ordinary 
household or restaurant sink, so as to drain directly into the sink or 
water line and which can readily be disconnected and stored in a kitchen 
cabinet or the like when not in use. 
Another object of this invention is to provide a vegetable washing and 
drying machine of the above nature wherein the spinner basket can be 
removed simply by lifting from its spinner table or platform for remote 
use for the preparation of salads and the like at the table. 
Another object of the invention is to provide a vegetable washing and 
drying machine in which the washing is accomplished by water showering 
prior to spin drying. 
Still another object of the invention is to provide a vegetable washing and 
drying machine in which the motive power for spin-drying the salad greens 
or the like in the spinner basket is either electrical or in the form of 
an electric motor or is derived from a water turbine actuated by the same 
pressurized tap water used in spray-washing. 
Other objects are to provide a vegetable washing and drying machine of the 
above nature which will be simple in construction, efficient in operation 
and dependable and durable in use. 
Still other objects, features and advantages of the invention will be 
apparent from the following description when read with reference to the 
accompanying drawings.

DESCRIPTION OF THE PREFERRED EMBODIMENT 
Referring now in detail to the drawings, reference numeral 10 in FIGS. 1 
and 2 indicates, generally, a preferred form of water turbine driven 
vegetable washing and drying machine employing the invention. The machine 
comprises a wash and spin assembly 11 and one or more vegetable or greens 
baskets 12, (only one illustrated in FIGS. 1 and 2), removably receivable 
upon spinner table 13. 
As best illustrated in FIGS. 2, 3 and 5, the wash and spin assembly 11 
comprises a substantially rectangular base plate 14 having a peripheral, 
upstanding enclosure wall 15. A cover plate 16 is secured against the 
upper end of the enclosure wall 15 as by screws 17, (only front center 
screw illustrated in FIG. 3). The base plate 14 and cover plate 16 are 
formed with central, vertically aligned, circular-outwardly-directed 
projections or bosses 18, 19, respectively, providing recesses for the 
press-fit reception of ball-bearing assemblies 20, 21, journaling a 
vertically-extending rotary shaft 22. The upper end of the rotary shaft 22 
is formed with an increased-diameter portion 23 defining an underneath 
annular shoulder which seats against the upper end of ball-bearing 
assembly 21. The lower end of the rotary shaft 22 extends slightly beyond 
the underside of lower ball-bearing assembly 20, where it is constrained 
against any substantial upward movement by a C-ring or retainer clip 24. 
The increased-diameter portion 23 of rotary shaft 22 terminates at its 
upper end in an integrally-formed, co-axial, circular disk or plate 25 of 
substantially increased diameter, against which the circular spinner table 
13 seats in concentric relation and is secured in place as by screws 26. A 
circular bucket wheel 27, which has a central hub 27a, is keyed to the 
rotary shaft 22 within the interior space defined by the base plate 14 and 
cover plate 16. As best illustrated in FIG. 4, the bucket wheel 27 is 
formed with a plurality of arcuate bucket members or vanes 28 extending 
upwardly with respect to a marginal, outer peripheral portion of said 
bucket wheel. 
As further illustrated in FIG. 4, the base plate 14 is integrally formed 
with an arcuate, upstanding wall portion 29 of spiral shape surrounding 
the bucket wheel 27, increasing gradually in its radial distance from the 
center of rotation of said bucket wheel from one end thereof, indicated at 
30, to the other end thereof, indicated at 31. Molded between the two ends 
30 and 31 of the upstanding wall portion 29 is an angular tube portion 32 
positioned to direct a stream of water under pressure against the bucket 
members or vanes 28 of the circular bucket wheel 27 as they pass by the 
jet opening 32a at the outer end of said angular tube portion 32. The jet 
stream of water thus applied to impel rotation of the circular bucket 
wheel 27 in the manner of a turbine machine is subsequently discharged 
through elongated openings 33, 34, 35, disposed in spaced relation in the 
base plate 14, adjacent to the outer periphery of said bucket wheel and 
within the space therebetween defined by the spiral-shaped, upstanding 
wall portion 29. 
Means is provided for supplying water under pressure to the angular tube 
portion 32. To this end, said tube portion terminates at the outside in a 
reduced-diameter nipple portion 36 connected to one end of a flexible hose 
37. The hose 37 extends upwardly through a rear housing 38, (see FIG. 3), 
where it communicates through a pressure control valve 39, a conduit 40, 
and threaded nipple 41 to attachment to a hose fitting supplying water 
pressure to the vegetable washing and drying machine, as is hereinafter 
more particularly described. 
The rear housing 38 is preferably integrally molded of a synthetic plastic 
material, and comprises an upstanding, rectangular backwall portion 42, a 
flat, rectangular topwall portion 43, opposed sidewall portions 44, 45, 
and frontwall portion 46. As best illustrated in FIGS. 1, 2 and 3, 
frontwall portion 46 is of arcuate configuration, recessing inwardly from 
top to bottom to shroud the vegetable or greens basket 12 in spaced 
relation when said basket is fitted in place as illustrated in FIG. 1. The 
rear housing 38 is secured in place with respect to the upstanding 
enclosure wall 15 as by a plurality of screws 47, (only two screws 
illustrated in FIGS. 1 and 2). 
As illustrated in FIGS. 5 and 6, the conduit 40 comprises a two-part molded 
housing 48, 49, secured together as by screws 50, said housing further 
being secured against the underside of the topwall portion 43 of the rear 
housing 38. As illustrated in FIG. 5, the molded housing of the conduit 40 
comprises two relatively angularly-disposed branches 51, 52, branch 51 of 
which constitutes an internal, through passageway 53 for directing the 
flow of water under pressure to the hose 37 for operating the bucket wheel 
27 and branch 52 of which constitutes an internal passageway 54 for 
directing the flow of water under pressure to a showerhead 55, as is 
hereinafter more particularly described. The upper part 48 of the two-part 
molded housing is integrally formed, at the juncture of the internal 
passageways, 53, 54, with the threaded nipple 41, said nipple extending 
upwardly through an opening in the topwall portion 43 of rear housing 38. 
The outer end of the internal passageway 53 opens into a cylindrical 
recess 56 rotatably received within which is a valve head 57 having a 
right-angular, through opening controlling the flow of water under 
pressure to the downwardly-projecting nipple 58 to which the flexible hose 
37 is connected. The valve head 57 is integrally formed with an 
upwardly-extending valve stem 59 projecting through an opening in the 
topwall portion 43 of rear housing 38, the outer end of which valve stem 
is fitted with a manual control knob 39 for the adjustment of water 
pressure applied through the jet opening 32a associated with the circular 
bucket wheel 27. 
The outer end of the internal passageway 54 of the two-part molded housing 
48, 49 opens into an identical valve mechanism for controlling water 
supplied under pressure to integrally formed nipple 61, (see FIG. 3), said 
nipple connecting with a short length of flexible hose 62 supplying said 
water under pressure to the shower head 55. The shower head 55 is secured 
against the outside of the front wall portion 46 of the rear housing 38, 
and is so located as to direct a spray of water into the basket 12 when 
fitted in place on the spinner table 13. As illustrated in FIGS. 1 and 3, 
the valve stem 63 of the valve controlling water under pressure to the 
shower head 55 extends upwardly through an opening in the topwall portion 
43 of the rear housing 38, whereat it is fitted with a manual control knob 
64 for adjusting flow rate through the shower head 55. 
The spinner table 13 comprises a flat, circular bottom plate portion 65 
integrally formed with an upstanding rim 66 providing a shallow, circular 
recess for interfitting reception of the vegetable or greens basket 12. A 
plurality of circularly-equidistantly-spaced openings 67 are provided in 
the bottom plate portion 65 adjacent rim portion 66, for the drainage of 
wash water. The vegetable or greens basket 12 is integrally formed, 
preferably of a tough synthetic plastic material, and comprises a circular 
bottom portion 68, an upstanding peripheral wall portion 69, an 
outwardly-extending peripheral wall portion 70, and a comparatively long, 
upwardly-extending sidewall portion 71. The sidewall portion 71 inclines 
inwardly, from bottom to top, and terminates in a short, rounded, 
inwardly-directed lip portion 72. The rounded juncture between the 
outwardly-extending portion 70 and the upwardly-extending sidewall portion 
71 is provided, about its periphery, with a plurality of equidistantly 
spaced, through openings 73 for the discharge of water under centrifical 
force as the basket spins during operation, as is hereinafter described. 
In operation, after the spinner basket 12 has been filled with the 
vegetables or greens to be washed and dried, it will be placed upon the 
spinner table 13. Water supplied to the threaded connector nipple 41 
through a length of flexible hose connected at the other end to source of 
pressurized water, such as a sink faucet or hose bib, will then be 
directed through the shower head 55 by manual adjustment of the control 
knob 64. At the same time, knob 39 controlling water under pressure 
supplied to the water turbine will be adjusted to slowly rotate the 
spinner basket during the washing operation. Upon completion of washing, 
the shower control knob 64 will be turned off and the control valve for 
supplying motive power to the rotor will be turned on so as to spin the 
basket at a velocity sufficient to centrifugally expel the water through 
the basket openings 73. Drain water from the shower wash and spin-dry 
operations will discharge by gravitation through the waste drain of the 
sink in which the device is placed when in use. 
Although I have particularly described my invention as a device for washing 
and drying vegetables and salad greens, it is also well suited to the 
washing and/or the drying or extracting of excess moisture from fruits or 
grains such as rice, as well as other suitable materials or products. To 
this end, the through openings 73 in the spinner basket used would be of a 
size suited to the material or product to be washed and/or dried. 
Alternatively, the product to be treated could be placed in a mesh bag or 
the like serving as an inner container placed within the spinner basket. A 
measured portion of the product could thus easily be spin dried and 
removed as a unit, with the mesh bag used as a storage container. 
It is to be understood also that instead of washing the product in the 
spinner basket first, it could alternatively be washed with the use of the 
shower head 55 at the same time that the spinner basket is being rotated 
for extraction of the wash water and moisture contained in the product. 
While there is illustrated and described herein only one form in which my 
invention can conveniently be embodied in practice, it is to be understood 
that this embodiment is presented by way of example only, and not in a 
limiting sense. For example, instead of utilizing a water turbine for 
rotating the spinner basket as is hereinabove described, a small, 
hermetically-sealed electric motor could be used instead for rotating the 
spinner table 13. Such an electric motor could be mounted in the housing 
above the spinner basket as a self-contained unit, or remotely mounted to 
rotate the spinner basket or container by means of a drive shaft extending 
through the bottom of the sink compartment.