U.S. patent application number 13/199656 was filed with the patent office on 2012-03-22 for closed circuit food dehydrating process.
Invention is credited to Corban Douglas Wells.
Application Number | 20120067069 13/199656 |
Document ID | / |
Family ID | 45816492 |
Filed Date | 2012-03-22 |
United States Patent
Application |
20120067069 |
Kind Code |
A1 |
Wells; Corban Douglas |
March 22, 2012 |
Closed circuit food dehydrating process
Abstract
The present invention discloses the special and unique process
for a Closed Circuit Food Dehydration Process wherein the
uniqueness of the present invention lies in the combination of
chilling recirculating air within an enclosed chamber containing
the food to be dehydrated to extract and remove latent moisture
from within the recirculating air and subsequently heating the
selfsame recirculating air to increase the dehydrating efficiency
of the Closed Circuit Food Dehydrating Process. An additional
feature of the present invention is the recirculation of the air
within the enclosed chamber without the communication of air from
without the enclosed chamber during the dehydration process.
Inventors: |
Wells; Corban Douglas; (Salt
Lake City, UT) |
Family ID: |
45816492 |
Appl. No.: |
13/199656 |
Filed: |
September 6, 2011 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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61403851 |
Sep 22, 2010 |
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Current U.S.
Class: |
62/93 |
Current CPC
Class: |
A23L 3/40 20130101 |
Class at
Publication: |
62/93 |
International
Class: |
F25D 17/06 20060101
F25D017/06 |
Claims
1. A process for dehydrating a moisture containing food comprising:
a food dehydration chamber wherein the food to be dehydrated is
placed, with said food dehydration chamber sealed from the outside
atmosphere during normal operation; an air duct which solely
communicates with said food dehydration chamber such that the air
duct allows the passage of air through said air duct from said food
dehydration chamber and returns the air to the food dehydration
chamber without the communication of air to the atmosphere without
the air duct or the dehydration chamber, effecting a closed system;
a fan contained within the air duct for the purpose of movement of
air through the air duct; an air chilling unit contained within the
air duct for the purpose of removing moisture in the form of
condensation from the air to effect dehydrating the air; a moisture
condensation collector for the purpose of collecting and
segregating from the air the moisture in the form of condensation
from the said air chilling unit; an air heating unit contained
within the air duct for the purpose of heating the air.
Description
CROSS REFERENCE TO RELATED APPLICATION
[0001] This Patent Application claims the benefit of U.S.
Provisional Patent Application Ser. No. 61/403,851 filed Sep. 22,
2010, which is fully incorporated herein by reference.
FIELD OF THE INVENTION
[0002] The present invention discloses the special and unique
process for a Closed Circuit Food Dehydration Process wherein the
uniqueness of the present invention lies in the combination of
chilling recirculating air within an enclosed chamber containing
the food to be dehydrated to extract and remove latent moisture
from within the recirculating air and subsequently heating the
selfsame recirculating air to increase the dehydrating efficiency
of the Closed Circuit Food Dehydrating Process. An additional
feature of the present invention is the recirculation of the air
within the enclosed chamber without the communication of air from
without the enclosed chamber during the dehydration process.
DESCRIPTION OF THE PRIOR ART
[0003] The only discovered relevant prior art to the disclosed
patents are discussed below. None of the discovered relevant prior
art discloses the use of a Closed Circuit Food Dehydrating Process
as disclosed in this patent.
[0004] U.S. Pat. No. 268,399 (J. C. Gunn) discloses the use of
steam to heat horizontal pans whereupon food is placed for
dehydrating. Additionally hot air is vented over said pans to
improve the dehydration process. This patent does not disclose the
use of chilling the recirculating air to extract and remove latent
moisture from within the recirculating air. Nor does this patent
disclose the use of an enclosed chamber wherein no air is
introduced from without the enclosed chamber during the dehydration
process.
[0005] U.S. Pat. No. 2,0232,536 (Charles C. Moore) discloses the
use of vacuum to reduce the boiling point of the water within the
food to be dehydrated. This patent does not disclose the use of
chilling the recirculating air to extract and remove latent
moisture from within the recirculating air. Nor does this patent
disclose the use of an enclosed chamber wherein no air is
introduced from without the enclosed chamber during the dehydration
process.
[0006] U.S. Pat. No. 2,017,728 (H. E. Oskamp) discloses the use of
recirculating heated forced air across horizontal plates to effect
the dehydrating process. This patent does not disclose the use of
chilling the recirculating air to extract and remove latent
moisture from within the recirculating air. Nor does this patent
disclose the use of an enclosed chamber wherein no air is
introduced from without the enclosed chamber during the dehydration
process.
[0007] U.S. Pat. No. 3,809,530 (Gerrans) discloses the use of a
semi-permeable membrane moisture egress means within a closed loop
conduit. This patent does not disclose the use of chilling the
recirculating air to extract and remove latent moisture from within
the recirculating air.
[0008] U.S. Pat. No. 4,190,965 (Erickson) discloses the use hot air
vented over cylindrically shaped stackable trays to effect the
dehydration process. This patent does not disclose the use of
chilling the recirculating air to extract and remove latent
moisture from within so the recirculating air. Nor does this patent
disclose the use of an enclosed chamber wherein no air is
introduced from without the enclosed chamber during the dehydration
process.
[0009] U.S. Pat. Nos. 4,192,081, 4,224,743, and 4,531,306
(Erickson) all disclose using a combination of exterior and
recycled heated and pressurized air to effect food dehydration.
This patent does not disclose the use of chilling the recirculating
air to extract and remove latent moisture from within the
recirculating air. Nor does this patent disclose the use of an
enclosed chamber wherein no air is introduced from without the
enclosed chamber during the dehydration process.
[0010] U.S. Pat. No. 6,688,018 B2 (Soucy) discloses the use of a
heated airflow dryer system incorporating a "secondary, open
airflow circulation loop of more limited airflow rate that provides
for partial exhaust and makeup air to the primary closed loop
airflow path for removing excess moisture". This patent does not
disclose the use of chilling the recirculating air to extract and
remove latent moisture from within the recirculating air from
within an entirely enclosed chamber wherein no air is introduced
from without the enclosed chamber during the dehydration
process.
[0011] U.S. Pat. No. 6,931,756 B2 (Morgan et al.) discloses a
portable, so atmospheric dehydrator and water condenser for
dehydrating fruits and vegetables while producing pure atmospheric
condensation from humidity found in the air and purifying the water
for dispensing and drinking purposes. This patent does not disclose
the use of chilling the recirculating air to extract and remove
latent moisture from within the recirculating air. Nor does this
patent disclose the use of an enclosed chamber wherein no air is
introduced from without the enclosed chamber during the dehydration
process.
[0012] Patent number US 2008/0211958 A1 (Berkey et al.) discloses
the use of a dehumidified equipment housing which may remove
condensed water to outside of the housing. This patent solely
related to the protection of electronic equipment and does not
relate to the dehydration of food.
[0013] There remains a need for a Closed Circuit Food Dehydrating
Process which utilizes the chilling of the recirculating air to
extract and remove latent moisture from within the recirculating
air within an enclosed chamber containing the food to be dehydrated
wherein no air is introduced from without the enclosed chamber
during the dehydration process.
[0014] However, at the time of this present patent application, it
was not no obvious to those of ordinary skill in the art how these
needs could be fulfilled, in view of the prior art as a whole.
OBJECT OF THE INVENTION
[0015] It is therefore an object of the present invention to
disclose a Closed Circuit Food Dehydrating Process wherein the use
of the chilling of recirculating air to extract and remove latent
moisture from within the recirculating air within an enclosed
chamber containing the food to be dehydrated wherein no air is
introduced from without the enclosed chamber during the dehydration
process.
SUMMARY OF THE INVENTION
[0016] The heretofore unfulfilled need for a Closed Circuit Food
Dehydrating Process wherein the use of the chilling of
recirculating air to extract and remove latent moisture from within
the recirculating air within an enclosed chamber containing the
food to be dehydrated wherein no air is introduced from without the
enclosed chamber during the dehydration process is now fulfilled by
the invention disclosed in this patent application.
[0017] All of the known disadvantages of prior arts are believed to
be overcome by the present invention.
[0018] The present invention can be thought of as comprising:
[0019] A food dehydration chamber wherein the food to be dehydrated
is placed and which chamber is substantially sealed from outside
air, which chamber incorporates an access means for placing and
removing the food.
[0020] An air chilling unit for condensing excess moisture from the
enclosed air stream.
[0021] An air heating unit for heating the air stream.
[0022] An air duct for communicating the air stream to the fan, air
chilling unit, air heating unit, and returning the air to the
dehydrating chamber in a closed circuit.
[0023] A fan for passing the air stream through the air duct.
[0024] A condensation collector which holds the condensation
removed from the air stream by the chilling unit.
[0025] The features of the invention are set forth with
particularity in the appended claims. The invention will best be
understood from the following description when read in conjunction
with the accompanying drawing.
[0026] FIG. 1 is a flow sheet illustrating the process of the
present invention;
[0027] With the following numeric designations. [0028] 10 The
Closed Circuit Food Dehydration Process in it's entirety. [0029] 20
Food dehydration chamber. [0030] 30 The air stream. [0031] 40 Air
duct. [0032] 50 Fan. [0033] 60 Moisture condensation. [0034] 70
Condensation collector. [0035] 80 Air chilling unit. [0036] 90 Air
heating unit.
OPERATION OF THE PRESENT INVENTION
[0037] As will become apparent from the following description and
accompanying FIG. 1, the Closed Circuit Food Dehydration Process 10
consist of a Food dehydration chamber 20, air duct 40, fan 50,
condensation collector 70, air chilling unit 80, and an air heating
unit 90, wherein;
[0038] The food to be dehydrated is placed within the food
dehydration chamber 20, which food dehydration chamber 20 does not
communicate to the atmosphere outside the Closed Circuit Food
Dehydration Process 10 except through an access orifice such as a
door or lid which, when closed, seals the food dehydration chamber
20 from the outside atmosphere.
[0039] Within the Closed Circuit Food Dehydration Process is an air
duct 40 whose purpose is to communicate an air stream 30 from
within the food dehydration chamber 20 to the fan 50, air chilling
unit 80, air heating unit 90, and back to the food dehydration
chamber 20. This air duct 40 solely communicates with the food
dehydrator chamber 20, thereby maintaining a closed circuit.
[0040] The air duct 40 communicates the air stream 30 flowing out
of the food dehydration chamber 20 to the fan 50, whereupon the air
stream 30 flows through the fan 50, which fan is employed to cause
movement of the air stream 30.
[0041] Once the air stream 30 moves past the fan 50, the air stream
30 flows past and through the air chilling unit 80, whose purpose
is to chill the passing air stream causing the moisture in the air
stream to condense out of the air stream as moisture condensation
60, which moisture condensation is diverted to and retained by the
moisture condensation collector 70.
[0042] The temperature of the air chilling unit 80 to which the air
stream is decreased will vary as required so as to effect moisture
condensation from the air stream.
[0043] The now dehydrated air stream is communicated by way of the
air duct 40 to the air heating unit 90, whereupon the air stream
temperature is raised to such a temperature so as to enhance the
effectiveness of the reheated air streams ability to absorb and
retain moisture emitted from the food within the food dehydration
chamber 20 as the reheated air stream passes around and through the
food as depicted by the air stream flowing through the food
dehydration chamber 30.
[0044] The temperature to which the air stream is increased will
vary according to the desired qualities of the final dehydrated
food product and as dictated by the desired efficiency of the
dehydration process.
[0045] This Closed Circuit Food Dehydration Process is repeated
until the process is halted whereupon the now properly dehydrated
food may be removed from the food dehydration chamber 20.
[0046] Although particular embodiments of the invention have been
described and illustrated herein, it is recognized that
modifications and variations may readily occur to those skilled in
the art and consequently, it is intended that the claims be
interpreted to cover such modifications and equivalents.
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