Related Applications
[0001] The present application claims the priority of U.S. Provisional Application No. 60/097,571
filed August 24, 1998, and the priority of U.S. Nonprovisional Application No. 09/353,904
filed July 15, 1999, the disclosures of which are fully incorporated herein by reference.
Field of the Invention
[0002] The present invention is directed to an improved utensil made of a composite of materials
of different hardness. In one embodiment, the present invention relates to a spoon
which is made of a hard material forming a skeleton of the spoon and located at the
center of its bowl; and a soft material located along the circumference of the spoon's
bowl. In addition, the present invention relates to a method of manufacture of the
combination-material utensil.
Background of the Invention
[0003] Currently, soft baby spoons are commonly used in the art. However, the soft spoons
can be difficult to use in some circumstances. Structural parts constructed of soft
material usually have higher coefficient of friction and therefore can not slide easily
across a dish such as a plate or bowl and, as a result, can occasionally be somewhat
uncomfortable to use. In addition, due to the softness of the material used in the
spoon, the spoon can often bend unnecessarily. Therefore, there is a substantial use
in the art for a new utensil which would combine the comfort of the soft-material
utensil with the structural integrity and slideability of the utensil made of a hard
material.
Summary of the Invention
[0004] In accordance with the invention, a utensil is provided which is constructed out
of a combination of a plurality of materials of different hardness. Preferably, the
utensil includes a soft material component which makes the utensil more comfortable
in use and a hard component which improves the overall structural integrity of the
spoon.
[0005] Other objects, advantages and features of this invention will be more apparent in
conjunction with the disclosure herein.
Brief Description of the Figures
[0006] A full understanding of the invention can be gained from the following description
of the preferred embodiment when read in conjunction with the accompanying drawings
in which:
Figure 1 is a top view of the combination-material utensil in accordance with the
present invention;
Figure 2 is a side view of the utensil of Figure 1;
Figure 3 is a bottom view of the utensil of Figure 1;
Figure 4 is a perspective view of the combination-material utensil in accordance with
the present invention;
Figure 5 is a perspective view of the utensil in accordance with the present invention,
before application of the soft component thereto; and
Figure 6 is a series of views of the apparatus of the present invention, Figure 6(A)
and 6(B) being cross sectional views taken along lines A-A and B-B, respectively,
of Fig. 6(C), and Figure 6(C) being a top view.
Detailed Description of the Invention and the Preferred Embodiments
[0007] The present invention is directed to an improved utensil constructed of a combination
of different materials having different relative hardness. In the preferred embodiment,
the invention is directed to a spoon for babies or children which is constructed of
a combination of hard and soft materials.
[0008] Accordingly, pursuant to the present invention, a composite or combination-material
utensil is provided having at least two materials of different hardness incorporated
therein. In the preferred embodiment, the invention is a baby spoon. The spoon preferably
includes a soft material component and a hard material component. In the preferred
embodiment, the spoon includes Kraton as the soft material component. The soft material
component is a comfortable material which is preferably used on portions of the spoon
which are in close contact with the baby's gums, mouth and skin.
[0009] The spoon also preferably includes a hard material component. In the preferred embodiment,
the spoon includes polypropylene as the hard material component. The hard material
component preferably provides the backbone of the spoon and preferably provides structural
rigidity. The hard material can also be incorporated into other specific portions
of the spoon, including, for example, the underside of the spoon's bowl. In one such
embodiment, the hard material can make it relatively easy to slide the spoon across
a bowl or other dish. This facilitates scooping food into the bowl of the spoon and
portion control. In addition, use of the the hard material as the backbone prevents
the undesirable bending of the spoon which is often found in soft spoons of the prior
art. Accordingly, incorporation of the harder material into the spoon can add structural
rigidity to the handle and/or to the bowl.
[0010] Further description of the invention is apparent with reference to the figures. As
shown therein, spoon 7 is a composite of two separate materials, a first, harder,
material and a second, softer, material. In the preferred embodiment, the harder material
is polypropylene, although in accordance with the invention, other materials such
as other plastics or metals can be used, as well. Also in accordance with the invention,
the softer material is Kraton, although silicone or other elastomers or flexible materials
can also be used consistent with the invention.
[0011] Figure 1 is a top view and Figure 3 is a bottom view of the preferred embodiment
of the spoon or utensil of the present invention. In accordance with the invention,
spoon 7 includes a bowl or dish 18 having a center 24, which is composed of a hard
material such as polypropylene or so forth, as discussed above. The construction of
the bowl from this hard material allows the spoon to be easily slid across a dish
such as a bowl or a plate and prevents undue bending of the spoon during use.
[0012] Bowl or dish 18 further includes a circumferential section 26. The circumferential
section 26 is preferably constructed from a relative soft material such as Kraton
or silicone. The soft material is molded around the center 24 of the bowl 18 to protect
the child's teeth and gums, and provides greater comfort to the baby's mouth than
a spoon entirely constructed out of the hard material. Thus, as shown in the figures,
in one preferred embodiment, in the bowl or dish section 18 the hard component of
the spoon protrudes through and is surrounded by the soft component of the spoon.
[0013] Consistent with the invention, the hard component of the spoon preferably forms the
backbone, or skeleton and infrastructure of the entire spoon, as shown in Figures
1, 3, 4 and 5. This hard material provides the entire spoon with a rigid structural
component and prevents the spoon from bending during use.
[0014] Thus, handle 38 of spoon 7 includes an upper inner section 42 made of the hard material
described above. Handle 38 is preferably provided for gripping comfort with the soft
material covering the bottom of the spoon. The hard material forms the edges of the
spoon. Handle 38 further includes ribs 48 made of a soft material. Ribs 48 are preferably
located on the inside edge of handle 38 and are applied to grooves 52 of the spoon,
shown in Figure 5. The ribs extend through the entire handle to protrude through its
top and bottom surfaces and provide for easy gripping.
[0015] Figure 6 further shows the spoon of the present invention in cross-sectional views.
Figure 6(A) is a cross-sectional view of the bowl or dish portion 18 and Figure 6(B)
is a cross-sectional view of the handle 28 of the spoon of the present invention,
both showing the preferred juxtaposition of the hard and soft materials of the present
invention.
[0016] In a preferred embodiment of the invention, the utensil or spoon is constructed using
insert molding. In the preferred embodiment, the hard polypropylene component of the
spoon is molded first to form the skeleton or backbone of the spoon. Following molding
of the hard component, this backbone is taken out either mechanically or by hand.
The hard component backbone is then placed into a mold where the Kraton, or relatively
softer component, is injected onto and through the hard plastic to form the finished
spoon.
[0017] Although a preferred embodiment of the combination spoon has been disclosed herein
in accordance with the invention, other embodiments can be constructed as well. Thus,
any desired modifications can be made to the bowl or to the handle of the spoon consistent
with the invention, including modification of the relative positions of the hard and
soft components and/or the number of different sections and types of hard and soft
components and/or the specific identities of the hard and soft components utilized.
Likewise, other composite hard/soft utensils can be constructed consistent with the
invention, such as knives or forks. Or, other manufacturing processes can be used,
if desired, to construct the products disclosed herein.
[0018] Having described this invention with regard to specific embodiments, it is to be
understood that the description is not meant as a limitation since further variations
or modifications may be apparent or may suggest themselves to those skilled in the
art. It is intended that the present application cover such variations and modifications
as fall within the scope of the appended claims.
1. A combination-material food utensil comprising:
a handle member, and
a food-contacting member connected to said handle member;
and wherein said food utensil comprises at least two different structural materials,
said two different structural materials comprising a first, relative hard material,
and a second, relative softer material.
2. A utensil according to claim 1, wherein food utensil comprises said two different
structural materials in said handle.
3. A utensil according to claim 1, wherein food utensil comprises said two different
structural materials in said food-contacting member.
4. A utensil according to claim 3, wherein said food-contacting member is a bowl of a
spoon.
5. A utensil according to claim 4, wherein said first, relative hard material forms the
center of said food-contacting member of said spoon.
6. A utensil according to claim 4, wherein said bowl defines a convex side and said first,
relative hard material is located at the center of said convex side.
7. A utensil according to claim 4, wherein said second, relative soft material is located
along a circumferential edge of said bowl of said spoon.
8. A utensil according to claim 4, wherein said bowl of said spoon defines a convex side
and wherein said second, relative soft material is located around a circumferential
edge of said convex side.
9. A utensil according to claim 1, wherein said first, relative hard material forms a
structural skeleton for said utensil.
10. A utensil according to claim 3, wherein said food-contacting member has one or more
tines of a fork.
11. A utensil according to claim 1, wherein said food-contacting member comprises a cutting
section of a knife-like utensil.
12. A process of manufacturing a combination-material utensil comprising the steps of:
molding a relative hard material in a first mold to form a skeleton of said utensil;
and
injecting relative soft material onto and through said molded skeleton to form said
combination-material utensil.
13. A process of manufacturing a combination-material utensil as claimed in claim 12 further
comprising the step of:
taking said molded skeleton of relative hard material out of said first mold and placing
it into a second mold prior to injecting said relative soft material.