Patent Application
20120055188
The technology described herein relates to an ice cube tray having a lifting device for removing ice cubes from the tray.
Older techniques for lifting ice cubes from a tray are known. One example utilized a removable, grid-like member positioned inside a rectangular tray, with the grid-like member having a handle that could be rotated upwardly in order to move the transverse separators of the grid in order to break the ice cubes. U.S. Pat. No. 2,619,807 to Ezba describes a lifter for use with an ice cube tray, which used lifting plates that were positioned under several rows of cubes and were coupled to the handle. When the handle was rotated to break the ice, the lifting plates also served to lift several rows of ice cubes in order to make it easier for the user to remove the cubes from the tray.
Another lifting device was taught in U.S. Pat. No. 7,665,711 to Marchionda, which included rotatable members that were positioned in each opening of the ice cube tray. The rotatable members had a contour similar to the contour of each cube mold and were rotatable within each mold to lift each ice cube individually.
In accordance with the teachings described herein, a combination ice cube tray and ice cube lifter is provided.
The technology described herein relates generally to an ice cube lifting device 10 for use in an ice cube tray 20. The lifting device seats within an ice cube tray and when it is pulled upwardly, it lifts all the ice cubes 22 out of the tray simultaneously. The example lifting device 10 is shown in combination with an accompanying ice cube tray 20. While it is anticipated that the ice cube tray 20 and lifting device 10 would be sold and marketed together, it is also possible that ice cube lifting devices 10 could be sold separately from the ice cube tray 20. Thus, it is anticipated that the lifting device 10 could be used with any conventional ice cube tray, provided that it fits within the recesses 24 defined within the tray 20.
The example lifting device 10, shown in FIGS. 1 and 5-7, includes a plurality of cradles 42 and a plurality of upstanding members 44. An upstanding member 44 is coupled to each cradle 42. The upstanding members 44 are joined together by a central portion 46 that extends along the length of the lifting device 10. The central portion 46 is substantially flat and positioned in a parallel plane to the cradles 42. The central portion 46 has a downwardly extending rib portion 48 that assists in strengthening the central portion 46. The tray 20 has a complimentary recess 34 for accepting the rib 48, which assists in stabilizing the lifting device 10 on the ice cube tray 20.
The cradles 42 have a flat bottom surface 50 for seating against a bottom surface 52 defined in the ice cube tray recesses 24. The cradles 42 have short, upwardly extending walls 54 to assist in cradling an ice cube when the lifting device 10 is removed from the ice cube tray 20. The upstanding members 44 are substantially vertically oriented and are angled at a slightly greater than 90 degree angle relative to the cradle bottom surface 50. Because of this angle, the spacing between the cradles 42 along the center line is greater than the width of the central portion 46. A handle 38 is formed along the central portion 46 substantially in the center thereof. An opening 56 is positioned under the handle 38. The handle 38 extends upwardly from the central portion 46 and has a flat top surface with angled side walls. The opening 56 under the handle 38 is larger in length L than the length of the top surface 58 of the handle 38 and larger in width than the width W of the handle 38.
The cradles 42 have a shape such that they can seat snugly within each recess 34 of the ice cube tray 20. In addition, the angle of the upstanding member 44 of each cradle 42 has an angle that substantially corresponds with an angle of the inner wall 26 of each recess 34 so that the upstanding member 44 of each cradle 42 seats snugly against the inner wall 26 of each recess 24 of the ice cube tray. It is preferred that the cradle 42 and upstanding member 44 seat snugly against the surfaces of the ice tray 20 such that liquid can not flow underneath the surfaces of the cradle 42 of the lifting device 10, although this is not critical to the invention. Even if some space were provided between the bottom surface 50 of the cradle 42, the upstanding members 44, and the interior walls 26 of the ice cube tray 20, the lifter 10 could still be used to remove ice cubes 22 from the tray 20. The cradles 42 shown are substantially square, but could be other shapes, such as rectangular, round, oval, triangular, or any shape, including novelty shapes, if desired.
a, 8b, 8c, and 8d each depict an example of positioning the lifting device 10 in the ice cube tray 20 and shows how the lifting device 10 seats in the tray 20.
The tray and lifting device 64 can be made of any material that is useful for ice cube trays 20, including plastic materials and metal materials. While the trays shown include twelve recesses 24 for forming ice cubes 22, more or less than 12 cubes 22 could be formed in a single tray. Any manufacturing technique known to those of skill in the art can be utilized.
While the cradles are shown with a solid bottom surface, bottom surfaces with openings could be used to manufacture the ice cube tray and lifting device. While the cradles are described as having side walls, the side walls are not required and the cradles could alternatively be provided by a flat member with no side walls. The flat member would seat against the bottom of the ice cube tray. It is envisioned that the cradle could be a loop-type member that fits against the bottom of the tray and would lift the ice cube from the tray when the lifting device is lifted upwardly. More than one lifting device could be positioned in a try at a time, if desired, so that only part of the ice cubes would be lifted at a time.
The ice cube tray 20 and lifting device 10 could be made of any desired material. One type of material that can be utilized is polyethylene. The ice cube tray and lifting device could be made of different materials, for example.
A combination ice cube tray and ice cube lifter includes a tray and a lifting device. The tray has one or more recesses, each of which has a bottom wall and side walls that extend upwardly from and contiguously around the bottom wall for forming one or more ice cubes therein. The lifting device has a base portion and a top member. The base portion includes one or more cradles configured to seat within the one or more recesses of the tray to seat against the bottom wall of each of the one or more recesses of the tray. Each of the one or more cradles is coupled to an upstanding member. The top member couples to the upstanding members.
The base portion includes a plurality of cradles and the tray includes a plurality of recesses, with each cradle being coupled to an upstanding member. The top member joins the upstanding members together. The top member includes a handle and the upstanding members are wall portions. The upstanding wall portions are spaced from one another to define a longitudinal space therebetween, with the cradles being arranged in two rows and being spaced apart by the longitudinal space between the upstanding wall portions, and the recesses in the tray defining two rows that correspond in position with the spacing of the cradles. The base portions of the lifting device may be configured to seat snugly against and around the bottom wall of each recess within the tray such that liquid will not substantially flow under the base portions when the recesses are filled with a liquid.
The tray may include a center divider positioned between the two rows of recesses, with an opening extending through the center divider. The opening is positioned at a point along the length of the tray that corresponds to the position of the handle of the lifting device.
A plurality of trays may be provided and a corresponding plurality of lifting devices may be provided, with a lifting device being coupled to each tray such that each tray/lifting device combination is stackable upon another tray/lifting device combination. The handle of the adjacent lifting device may extend through the opening disposed in the adjacent tray such that the tray/lifting device combinations are stackable on top of each other. A strengthening rib may be positioned under the top member. The tray may have a center divider with a longitudinally extending channel. The channel may be sized to accept the rib when devices are stacked on top of each other.
The top member of the lifting device may have a width and a length. The tray center divider may have a width and a length that is substantially similar to that of the lifting device. The width of the top member of the lifting device is wide enough to support an adjacent tray should the tray be positioned on the top member. The upstanding members of the lifting device may be substantially separated from each other until they mate with the top member.
A method for lifting ice cubes from a tray includes providing a tray having a plurality of recesses, each of which has a bottom wall and upstanding side walls for forming an ice cube in each recess. The method also includes providing a lifting device having a plurality of cradles for seating against the bottom wall of each of the plurality of recesses and an upstanding member coupled to each cradle, said upstanding members being joined together at the top end thereof and forming a handle. The method further includes positioning the lifting device in the recesses such that the cradles fit snugly within each recess, filling the recesses with a fluid, freezing the fluid in the trays, and raising the lifting device out of the tray utilizing the handle to remove the ice cubes that are formed on each cradle.
An ice cube lifting device for use with an ice cube tray having a plurality of recesses includes a plurality of cradles, a plurality of upstanding members, and a top member. The plurality of cradles is configured to seat within a plurality of recesses of an ice cube tray. Each cradle is configured to fit snugly within a recess of an ice cube tray. The plurality of upstanding wall portions is coupled to each cradle. The top member couples the upstanding wall portions together. The top member may include a handle. The upstanding wall portions may be angled relative to a base wall of the cradles by an angle greater than 90 degrees. The top member may extend longitudinally to separate a first row of cradles and a second row of cradles. Each cradle may have a planar bottom surface and upstanding side walls that have a shape that is substantially similar to a contour of an ice cube recess. The planar bottom surface may be a solid surface.
The term “substantially,” if used herein, is a term of estimation.
While various features are presented above, it should be understood that the features may be used singly or in any combination thereof. Further, it should be understood that variations and modifications may occur to those skilled in the art to which the claimed examples pertain. The examples described herein are exemplary. The disclosure may enable those skilled in the art to make and use alternative designs having alternative elements that likewise correspond to the elements recited in the claims. The intended scope may thus include other examples that do not differ or that insubstantially differ from the literal language of the claims. The scope of the disclosure is accordingly defined as set forth in the appended claims.
This application claims priority to U.S. Provisional Application No. 61/379,492, filed on Sep. 2, 2010, now expired.
| Number | Date | Country | |
|---|---|---|---|
| 61379492 | Sep 2010 | US |
