Title: Food injection device
Abstract: A device to inject solid materials into foods and other objects. The device utilizes a hollow needle with a moving cover at one end. A plunger moves inside the hollow needle to push contents from the needle into the object to be injected. Various apparatus for moving the can be utilized.
Patent Number: 6,840,161 Issued on 01/11/2005 to Backus, et al.
| Inventors:
|
Backus; Alan L. (1660 Bel Air Rd., Los Angeles, CA 90077);
Popeil; Ron (1292 Monte Cielo Dr., Beverly Hills, CA 90210)
|
| Appl. No.:
|
375220 |
| Filed:
|
February 27, 2003 |
| Current U.S. Class: |
99/345; 99/450.7; 99/494; 426/281; 426/282 |
| Intern'l Class: |
A23L 001/00; A23L001/22 |
| Field of Search: |
99/345,494,532,450.7,533
141/21,25,26,352,357
222/209,213,215
604/187,218,220,221,222,227
426/281,282,92,102,89,518
|
References Cited [Referenced By]
U.S. Patent Documents
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| 1917137 | Jul., 1933 | Marchio.
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| 2118976 | May., 1938 | Larkin.
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| 2124700 | Jul., 1938 | Hartzell.
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| 2473191 | Jun., 1949 | Bettencourt.
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| 2776634 | Jan., 1957 | Morton.
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| 2784682 | Mar., 1957 | Clevenger.
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| 2822571 | Feb., 1958 | Johnson.
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| 3161154 | Dec., 1964 | Schott.
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| 3241477 | Mar., 1966 | Jenner.
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| 3483810 | Dec., 1969 | Peters et al.
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| 3754469 | Aug., 1973 | Gaisor.
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| 4064879 | Dec., 1977 | Leibinsohn.
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| 4178660 | Dec., 1979 | Olney et al.
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| 4211160 | Jul., 1980 | Bieser.
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| 4258067 | Mar., 1981 | Stoll et al.
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| 4414885 | Nov., 1983 | Kelly.
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| 4455928 | Jun., 1984 | Townsend.
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| 4641573 | Feb., 1987 | Gunn.
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| 4703688 | Nov., 1987 | Ochs.
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| 4729589 | Mar., 1988 | Puskar.
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| 5226897 | Jul., 1993 | Nevens et al.
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| 5275095 | Jan., 1994 | Van Haren.
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| 5453044 | Sep., 1995 | Abler et al.
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| 5881640 | Mar., 1999 | R.ae butted.vsager.
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| 5900265 | May., 1999 | Rutherford.
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| 6117467 | Sep., 2000 | Huling.
| |
| Foreign Patent Documents |
| 63-202345 | Aug., 1988 | JP.
| |
Primary Examiner: Alexander; Reginald L.
Attorney, Agent or Firm: Christie, Parker & Hale, LLP
Parent Case Text
CROSS-REFERENCE TO RELATED APPLICATION(S)
This application is a continuation of application of U.S. patent
application Ser. No. 09/891,915, filed Jun. 26, 2001 now U.S. Pat. No.
6,578,470.
Claims
What is claimed is:
1. A method of injecting solid objects such as peanuts, walnuts, pineapple
and lemon chunks, garlic cloves and other solid objects into food articles
using a continuous tube which has an integral food piercing tip and a
moving member to retain solid objects within the tube on its front end,
the method comprising the steps of:
loading the solid into the continuous tube through a rear end of the tube,
the solid objects being restrained from exiting the front end of the tube
by the moving member;
behind the solid objects, placing a first plunger into the tube;
piercing a food article with the food piercing tip; and
moving the first plunger through the continuous tube causing the solid
objects to push against and deflect the moving member and causing the
solid objects to be ejected from the tube through the food piercing tip
and into the pierced food article.
2. The method of claim 1 further comprising using hand power to move the
first plunger through the tube.
3. A device to inject solid objects such as peanuts, walnuts, pineapple and
lemon chunks, garlic cloves, and other solid objects into foods, the
device comprising:
a continuous tube having a first open end to receive the solid objects;
a tip on and integral with an opposite second end of the tube, the tip
having a moving member with a first position to restrain the solid objects
in the tube from exiting the tube, the moving member having a second
position which allows the solid objects to pass through the tip, and the
tip being pointed to pierce into food articles;
a pushing member which fits into the tube through its open end and which
pushes the solid objects through a length of the continuous tube and
through the tip while the tip is pierced into a food article; and
activation means to move the pushing member in the tube causing the solid
objects to be ejected from the sleeve, through the tip, and into the
pierced food article.
4. The device of claim 3 further comprising the tube having a generally
regular hollow interior along its length, and from time to time the tip
having an opening formed in part by the moving member, and the opening
being about equal to the cross-section of the hollow interior bore.
5. The device of claim 3 wherein the activation means is powered by hand.
Description
FIELD OF THE INVENTION
The present inventions are directed primarily toward food preparation
devices and particularly toward devices which inject substances into
foods.
BACKGROUND OF THE INVENTION
It is common today for cooks in homes, bakeries and restaurants to use
hypodermic type needles to inject marinades, flavorings and other liquid
substances into meats and other food products. Such devices are also
commonly used to inject more viscous liquids and semi liquids such as
jellies, frostings, puddings, into such foods as cakes, cream puffs,
eclairs and cupcakes. Typically these devices resemble oversized medical
hypodermic syringes which the cook fills through the back of the barrel
and hand operates by pushing a plunger. These devices allow flavorings to
penetrate inside and throughout the food and provide foods with a
moistness, texture, and/or taste they might otherwise lack.
Commercial food injection devices have also been in common use for many
years. Like their home and restaurant counterparts, these devices
typically use hollow needles inserted into the food to inject liquids and
semi liquid substances. Their applications include not only injecting
flavorings and food substances such as already mentioned, but also liquid
and semi liquid substances to increase food weight, decrease spoilage, and
help in processing. Three such commercial food injection devices are shown
in U.S. Pat. No. 4,455,928, Townsend--Means for Injecting Fluids Into Food
Products; U.S. Pat. No. 5,275,095, Van Haren--Brine Injection Device; U.S.
Pat. No. 5,881,640, Raevsager--Apparatus for Injecting Brine Into Food
Products.
All the aforementioned devices are limited to injecting liquids and semi
liquids. Solid materials such as dried spices, salt, sugar, sunflower
seeds, peanuts, garlic cloves, chunks of pineapple, jellybeans, chunky
peanut butter, etc. cannot be injected using any of these devices.
It would be useful to have a mechanism which could inject solid substances
such as just mentioned into foods. Such a device also might find wider use
in medical and other settings.
As examples, whole peanuts could be injected into sesame rolls, or
pineapple chunks injected into hams, or garlic cloves injected into a pot
roast, or jellybeans injected into frosted cupcakes, or lemon chunks
injected into rotisserie cooked chicken, or walnuts injected into roast
beef, or ice cream injected into angel food cake, etc.
SUMMARY OF THE INVENTION
Several embodiments of the present inventions are illustrated in the
appended figures. In brief, all embodiments comprise four interrelated
sections: the injection needle, the solid material mover, the power drive,
and the material loading mechanism.
Starting with the injection needle, embodiments as illustrated in FIGS. 1
through 7, show two alternative constructions 20 and 22, both having
needles 21 and 23, ending in penetrating points 24 and 26, and both having
movable port covers, shown respectively as 28 and 30, to cover
respectively injected solid exits 32 and 34. Penetrating points 24 and 26
allow piercing into the object to be injected. Movable port covers 28 and
30 may serve either and/or both the purpose or purposes of structurally
supporting penetrating points 24 and 26, and/or restraining materials to
be injected from leaving the needle until the materials are driven out by
the solid material mover.
In the embodiments as illustrated in FIGS. 1 through 7, the solid material
mover comprises plunger 36 which slides into and out of needle 21 or
needle 23 and thus pushes solids out respectively through food injected
solid exits 32 or 34 covered by respectively movable port cover 28 and 30.
In turn, plunger 36 is pushed into needle 21 or 23 by the power drive
mechanism comprising pusher plunger 38 which slides inside of barrel 40
driven by manual pressure.
FIG. 8 shows another configuration for the power drive mechanism comprising
direct manual pressure on plunger 84. This eliminates the need for pusher
plunger 38, barrel 40 and needle ring securing nut 54.
Other configurations for the power drive mechanism might also be employed.
As examples, a solenoid drive such as used in electric staple guns, or a
powered screw drive mechanism such as used in electric cookie presses, or
a ratcheted screw drive mechanism such as used in electric caulking guns,
or a flexible shaft drive such as used in orthopedic surgical equipment
might also be used to replace the mechanism previously described.
One example of a motor drive is illustrated in FIG. 9. As already
described, this embodiment uses a gear reduced electric motor to drive a
plunger which pushes material to be injected out of the injection needle
and into the object to be injected.
In the embodiments shown in FIGS. 1 through 7, the material loading
mechanism comprises placing solids to be injected into needle 21 through
opening 42 or into needle 23 through opening 44. Openings 42 and 44 are
opposite respectively penetrating points 24 and 26 on their respective
needles 21 and 23. In the example shown in FIG. 1 needle 21 or 23 must
first be removed from barrel 40 by unscrewing needle ring securing nut 54
before materials may be loaded through openings 42 or 44. Alternatively,
pusher plunger 38 and plunger 36 may be backed out of barrel 40 and
materials to be injected may be dropped into the back of barrel 40 where
they may drop by gravity into needle 21 or needle 23. Plunger 36 and
pusher plunger 38 would then be reinserted into barrel 40.
Alternatively, the material loading mechanism may comprise splitting 46
needle 21 or splitting 48 needle 23 and hinging a portion of each needle
so that the unhinged portion could dip into and scoop up solids and semi
solids to be injected. This dipping and scooping is similar to a spoon
scooping up material. After dipping, scooping and filling the needle, the
hinged portion of the needle would be swung back into place and secured,
as an example, by sliding ring 50 or 52 respectively over needle 21 or 23,
and plunger 36 driven by the power drive mechanism would push the solids
or semi solids out respectively through injected solid exits 32 or 34.
Ring 50 or 52 could be held in place on their respective needles 21 and 23
by friction or by a small protrusion sliding over an indented groove to
make a snap fit. Such snap fits are well known in the art and thus are not
described in detail herein.
To make operation easier of the material loading mechanism just described,
hinge 72 might be biased so hinged needle portion 60 naturally springs
outward as shown in FIG. 3 when ring 50 is removed from needle 21. This
would mean needle 21 would be naturally open for scooping when ring 50 was
removed. Alternatively, or in conjunction with the above, finger lever 74
attached to hinged needle portion 60 might help with finger pressure to
move hinged needle portion 60 to its open position as shown in dotted
lines in FIG. 3.
Operating the embodiment comprises the steps of filling needle 21 or 23
with solids 66 using one of the material loading mechanisms such as just
described or an equivalent. Once the embodiment is loaded and any needed
reassembly completed, the needle is pierced into the object to be
injected, and the power drive mechanism is activated, as an example by
manual pressure as described above on intermediate thumb pads 60 and/or on
primary thumb pad 58. This causes solids 66 to be expelled from the
embodiment as shown in FIG. 7.
The embodiment may be constructed at any scale including: small-scales,
appropriate for use in orthopedic surgery or other medical procedures such
as implanting solid medicines or objects; intermediate scales such as
illustrated in the appended figures for use in food preparation; to larger
scales appropriate for inserting solid objects underground or other
places.
Likewise, many different materials may be appropriate for use in
constructing embodiments of the present inventions. As examples, the
embodiment shown may have needles 21 and 23 constructed from pliable
plastics such as polypropylene, nylon, polyethylene or polycarbonate.
Barrel 40, pusher plunger 38, and needle ring securing might as examples
be made from ABS, polycarbonate, polypropylene, acrylic diecast aluminum
etc. Medical embodiments of the present inventions might use similar
materials or might be constructed from other materials such as stainless
steel.
Other features might easily be added to the preferred embodiment such as
volumetric measuring markings on the side of needles 21 and 23 or barrel
40. Clear or translucent materials on needles 21 and 23 and barrel 40
might help or be necessary in the use of such markings.
The embodiment may also be used for injecting all viscosity of liquids,
including: light viscosity liquids, semi liquids, highly viscous liquids,
and liquids containing solids. To accomplish these tolerances between
plunger 36 and the inside of the needle 21 or 23 might be adjusted so
lighter liquids would be driven out. Also, movable port covers 28 or 30
might have to fit tightly when closed to keep lighter viscosity liquids
from escaping before injection.
For all embodiments described herein, many features detailed need not be
necessary to practice the present inventions. Likewise, most features
described herein can obviously be interchanged between embodiments even
where they are not specifically shown.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded perspective view of an embodiment incorporating the
present invention.
FIG. 2 is an end view of needle 21 taken from penetrating point 24 end of
needle 21.
FIG. 3 is a perspective side view of needle 21.
FIG. 4 is an end view of needle 23 taken from penetrating point 26 end of
needle 23.
FIG. 5 is a perspective side view of needle 23.
FIG. 6 is a cross-section view of FIG. 1.
FIG. 7 is the cross-section view of FIG. 1 after solids 66 have been
injected.
FIG. 8 is a perspective view of an alternative embodiment of the present
inventions which eliminates the need for pusher plunger 30, barrel 40 and
needle ring securing nut 54.
FIG. 9 shows a motorized embodiment of the present inventions.
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1, the present invention utilizes barrel 40, pusher
plunger 38 (with modifications described below), and needle securing nut
54 similar to a typical home liquid food injecting syringe. Typical liquid
injecting needle 56 is shown to illustrate how it might be interchanged
with solid injecting needles 21 and 23. Primary thumb pad 58 and
intermediate thumb pads 60 are also shown. As illustrated by the dotted
line thumb in FIG. 6, intermediate pads 60 help people with smaller hands
press on pusher plunger 38 when it is extended.
As shown in FIG. 2, four movable port covers 28 are shown in solid line in
their closed positions, and in dotted line 29 in their open positions.
Also shown in dotted line 60 is hinged needle portion in its open position
and in solid line 59 in its closed position.
Needle 21 is indicated as being cylindrical tube 25 terminated on one end
by penetrating point 24. Round cross-section cylindrical tube 25 is
volumetrically efficient, easy to clean, and offers easy to fit
orientation to cylindrical plunger 36 which fits within tube 25.
Other cross-sections than round might also be used however. As examples,
elliptical, eye shape, square, egg shape, star shape, etc. cross-sections
might also be employed. Depending on the item to be injected, these
alternative cross-sections may work and may even provide additional
benefits. As an example, an eye shape cross-section may help to close the
needle hole after injection.
Penetrating point 24 is shown as the tip of a cone formed from closed
movable port covers 28.
Four movable port covers 28 are also indicated in FIG. 2 and FIG. 3. Fewer
or more divisions for the port covers could also be used. As examples, 2,
3, 5, 6, 7, etc. regularly or irregularly spaced port covers might replace
the four regularly spaced covers shown. All that is necessary is that the
port covers restrain materials within needle 21 from falling out before
injection and that penetrating point 24 be strong enough to pierce the
article to be injected.
Cylindrical plunger 36 laterally slides into and out of needle 21. This may
be either a high tolerance or low tolerance fit depending on the
coarseness of contents to be injected.
As seen in FIG. 3, movable port covers 28 and the hinged needle portion in
its open position 60, as well as ring 50 are all shown in dotted lines.
FIG. 2 and FIG. 3 shown how movable port covers 28 deflect to allow solid
contents from needle 21 to exit. FIGS. 2 and 3 also show how the hinged
needle portion swings out 60 to allow loading of needle 21 by scooping
into the contents to be loaded like a spoon or by loading by other means
such as hand inserting contents to be injected 66 into open needle 21.
Hinge 72 is indicated as being as molded living hinged such as might be
used if needle 21 were molded from polypropylene or other suitable
material. Hinged 72 is shown as being biased toward the hinged needle
portion being in its open position as indicated by dotted line 60. This
bias assists in filling needle 21 by having the needle be naturally open
and able to scoop or be filled by hand or other means until needle 21 is
closed and ring 50 is fitted onto it.
Referring to FIG. 4, shown in dotted line 64 is the hinged needle portion
on its open position. Needle 23 is indicated as being cylindrical tube 27
terminated on one end by penetrating point 24 formed by an angled cut
across the end of cylindrical tube 27. Like needle 21, cross-sections
other than round might be advantageously employed.
As seen in FIG. 5, movable port cover 30 in its open position 31, and
hinged needle portion 64, as well as ring 52 are shown in dotted lines.
FIG. 4 and FIG. 5 show in dotted line 31 how movable port cover 30
deflects to allow solid contents from needle 23 to exit. FIGS. 4 and 5
also show how hinged needle portion 64 swings out to allow loading of
needle 23 by scooping into the contents to be loaded or by loading by
other means such as hand inserting solid contents into open needle 23.
FIG. 1 shows the assembled embodiment of FIG. 1 readily injecting solids
66. Hand 68 indicates one example of how the embodiment might be used.
Dotted line thumb 70 shows an example of how a person with a smaller hand
might operate the embodiment by pressing on disk shaped intermediate thumb
pads 60. Intermediate thumb pads 60 are circular ribs disposed orthogonal
to the axis of pusher plunger 38. These intermediate pads allow pusher
plunger 38 to be pressed down, using one or two hands, without having to
reach primary thumb pad 58 on the end of the pusher plunger 38.
FIG. 8 is a perspective view of an alternative embodiment of the present
inventions which eliminates the need for pusher plunger 30, barrel 40 and
needle ring securing nut 54. Also shown are markings 76 for measuring the
amount of material to be injected. To utilize these markings, ring 78 and
needle 80 would advantageously be made from clear or translucent material.
This embodiment also incorporates intermediate thumb pads 82 to make it
easier for people with small hands to use the embodiment similar to
intermediate thumb pads 60 on embodiments described herein. Intermediate
thumb pads 82 may provide support for two thumbs simultaneously or one
thumb to press on plunger 84. Likewise, primary thumb pad 86 may allow one
or two hand operation.
FIG. 9 shows a motorized embodiment of the present inventions. Needle 88
does not have certain features of earlier embodiment including splitting
46 needle 88 and having related finger lever 74. For all embodiments
described herein, many features detailed need not be necessary to practice
the present inventions. Likewise, most features described herein can
obviously be interchanged between embodiments even where they are not
specifically shown. As an example, needle 88 in FIG. 9 could be split 46
and could also have finger lever 74.
The embodiment shown in FIG. 9 has outer case 90 housing gear reduced motor
driven ratchet gear 92 which drives in one direction 94 plunger 96 when
plunger 96 is inserted into tubular track 98 and grooves 100 on plunger 96
engage ratchet gear 92, and when also the user presses button switch 102
which activates rotation of ratchet gear 92. Grooves 100 are held in
engagement against ratchet gear 92 by pressure on the side of plunger 96
toward ratchet gear 92 from leaf spring 104. Spring 104 assisted
ratcheting engagement also allows plunger 96 to be inserted through
tubular track 98 in direction 94 with manual pressure without activating
rotation of ratchet gear 92.
Needle 88 can be inserted and removed from outer case 90 by sliding needle
88 into and out of slots 106. This may be desirable for cleaning, or use
of other needles, or for other purposes.
The embodiment may be operated in a variety of ways. As an example, needle
88 could first be filled with materials to be injected. This could be done
in several ways. As an example, before attachment to outer case 90, needle
88 might be filled through its rear and needle 88 then attached to outer
case 90. As another example, materials to be injected could be dropped
into hopper 108 and gravity fed into needle 88 etc.
Plunger 96 could then be inserted 94 into tubular track 98 and pressed
until it blocked the rear entry of needle 88. The user could then pierce
the item to be injected with needle 88 and press button switch 102 causing
plunger 96 to drive the materials to be injected out of needle 88 and into
the item to be injected.
Needle 88 would then be removed from the item to be injected and plunger 96
removed from outer case 90 and needle 88 by plunger 96 being pulled in
direction 94 through the tip of needle 88.
*
