US277768A - Process of preserving food - Google Patents
Process of preserving food Download PDFInfo
- Publication number
- US277768A US277768A US277768DA US277768A US 277768 A US277768 A US 277768A US 277768D A US277768D A US 277768DA US 277768 A US277768 A US 277768A
- Authority
- US
- United States
- Prior art keywords
- chamber
- ozone
- articles
- gas
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title description 6
- CBENFWSGALASAD-UHFFFAOYSA-N ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 36
- 238000004321 preservation Methods 0.000 description 8
- 230000002335 preservative Effects 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- PQHQBRJAAZQXHL-UHFFFAOYSA-N 2C-I Chemical compound COC1=CC(CCN)=C(OC)C=C1I PQHQBRJAAZQXHL-UHFFFAOYSA-N 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
- A23B4/16—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
Definitions
- ' scale I may use apparatus such as shown in UNITED STATES PATENT OFFICE.
- My invention relates to certain improvements in the preservation of perishable articles of food by treatment with ozone gas.
- Theinvention consists,mainly, in subjecting the articles to the action of the gas while in an air-tight chamber from which the air has been exhausted and its place supplied by gas,. it having been found that by this means the gas acts upon the articles of food in a short time and in such a thorough manner that said articles can, after treatment, be exposed to the atmosphere without risk of decay.
- the simplest method ofcarrying out my invention is to place the articles in a vessel or chamber containing a generator of ozone, af ter starting which the chamber is closed airtight, the generation of the ozone exhausting the air which was contained in thechamber, and the ozone, when generated, taking the place of the air and exercising the desired preservative effect upon the articles exposed to its action. This is assisted by the dryness of this atmosphere due to the moisture-absorbent character of some or all of the ozone-generating chemicals.
- D is an exhaust-pump communicating with the chamber A; and F is a combined exhaust" and force pump, the suction-pipe a of which communicates with the chamber B,'and the force-pipe b with the chamber A, said pipe b passing through a box, (1, containing water or ice, and serving to cool the gas in its flow through the pipe.
- the chamberA is the treating-chamber, and should be provided with suitably-packed doors to permit ingress and egress, and with means for supporting the various articles to be subjected to the preservativeinfluence of the ozone.
- a valved pipe, f serves to connect the chamber B with a suitably-located generator of ozone, or an ozone-generator is placed in the said chamber.
- the operation of the apparatus is as follows: The articles to be preserved are placed in the chamber A, and when the latter is tilled the pump D is set in operation 'so as to exhaust the air from the said chamber A. During these operations the chamber B has been filled with ozone. This being accomplished, the pump F is put in operation to draw the ozone from said chamber B and force it through the pipe I; and into the chamber A, from which the air has been previously exhausted, as above set forth. The ozone is pumped into the chamber A until the required pressure is reached. In practice I .have'f'ound a pressure of thirty pounds to the square inch to give good results, although a greater or less pressure tlhan this may be employed, if desired.
- the chamber B serves as a reservoir for the ozone, and permits the storage of a sufiicien't volume of the same to permit a continuous pumping into the chamber A until the proper pressure therein has been reached.
- the treatment her A may be simply permitted to flow into the same after the airhas been exhausted from it; but the use of the ozone under pressure is preferred.
- the mode herein described which consists in placing the articles in an air-tight chamber, exhausting the air therefrom, supplying its place with the gas which has been subjected to cooling influences, subjecting the articles to the action of the gas for a limited period, and then removing them from the chamber, as set forth.
Description
I 7 (No Model.)
I. M. MITCHELL.
PROCESS OF PRESERVING FOOD. No. 277,768. Patented May 15 1883.
' scale I may use apparatus such as shown in UNITED STATES PATENT OFFICE.
PROCESS OF PRESERVING FOOD.
SPECIFICATION forming part of Letters Patent No. 277,768, dated May 15, 1.883.
Application filed August 5, 1882. (No model.)
To all whom it may concern Be it known that I, ISABEL M. MITCHELL, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in the Preservation of Food, of which. the following is a specification.
My invention relates to certain improvements in the preservation of perishable articles of food by treatment with ozone gas.
Theinvention consists,mainly, in subjecting the articles to the action of the gas while in an air-tight chamber from which the air has been exhausted and its place supplied by gas,. it having been found that by this means the gas acts upon the articles of food in a short time and in such a thorough manner that said articles can, after treatment, be exposed to the atmosphere without risk of decay. v
The simplest method ofcarrying out my invention is to place the articles in a vessel or chamber containing a generator of ozone, af ter starting which the chamber is closed airtight, the generation of the ozone exhausting the air which was contained in thechamber, and the ozone, when generated, taking the place of the air and exercising the desired preservative effect upon the articles exposed to its action. This is assisted by the dryness of this atmosphere due to the moisture-absorbent character of some or all of the ozone-generating chemicals.
In carrying out the invention on a large the accompanying drawing, in which A and B represent two air-tight chambers, the capacity of the chamber B being considerably greater than that of the chamber A.
D is an exhaust-pump communicating with the chamber A; and F is a combined exhaust" and force pump, the suction-pipe a of which communicates with the chamber B,'and the force-pipe b with the chamber A, said pipe b passing through a box, (1, containing water or ice, and serving to cool the gas in its flow through the pipe.
The chamberAis the treating-chamber, and should be provided with suitably-packed doors to permit ingress and egress, and with means for supporting the various articles to be subjected to the preservativeinfluence of the ozone.
A valved pipe, f, serves to connect the chamber B with a suitably-located generator of ozone, or an ozone-generator is placed in the said chamber.
The operation of the apparatus is as follows: The articles to be preserved are placed in the chamber A, and when the latter is tilled the pump D is set in operation 'so as to exhaust the air from the said chamber A. During these operations the chamber B has been filled with ozone. This being accomplished, the pump F is put in operation to draw the ozone from said chamber B and force it through the pipe I; and into the chamber A, from which the air has been previously exhausted, as above set forth. The ozone is pumped into the chamber A until the required pressure is reached. In practice I .have'f'ound a pressure of thirty pounds to the square inch to give good results, although a greater or less pressure tlhan this may be employed, if desired. is continued for from fifteen minutes to two hours, in accordance with the character of the articles under treatment and the pressure imparted to the gas in the chamber A, after which, the valve in the pipe I) being closed, the chamber is opened and the articles removed therefrom prior to a repetition of the operation. By first exhausting the air from the chamber-A and then forcing theozoue gas into the same, I am enabled to effect the thorough subjection of the articles under treatment to the preservative influence of the ozone, as the complete impregnation of the articles with the gas is insured. Ifthe air is not exhausted from the chamber containing the articles to be treated, said air will be mixed with and will dilute the ozone gas to such an extent as to interfere with its preservative properties hence the importance of the first step of the process. It is advisable to extract the animal heat from the articles before treatment, and to maintain them in a comparatively cool condition during treatment; hence the subjection of the ozone to the influence ot' the cooler d beforeit enters the chamber A. The chamber B serves as a reservoir for the ozone, and permits the storage of a sufiicien't volume of the same to permit a continuous pumping into the chamber A until the proper pressure therein has been reached.
Instead of forcing the ozone into the cham- The treatment her A, it may be simply permitted to flow into the same after the airhas been exhausted from it; but the use of the ozone under pressure is preferred.
I do not desire to claim, broadly, in this application the use of ozone gas as a means of preserving perishable articles of food; nor (lo 1 claim, broadly, the cooling ofgas between the generator and a chamber or reservoir into which the gas is introduced; but
I claim as my invention and desire to secure by Letters Patent- 1. As animprovement in the preservation of perishable articles of food by means of ozone gas, the mode herein described, which consists in placing the articlesin an air-tight chamber, exhausting the air contained therein, supplying its place with the -gas,sub jecting the articles to the action of the gas for a limited period, and then removing them from the chamber, as set forth.
2. As an improvement in the preservation of perishable articles of food by means of ozone gas, the mode herein described, which consists in placing the articles in an air-tight chamber, exhausting the air therefrom, supplying its place with the gas which has been subjected to cooling influences, subjecting the articles to the action of the gas for a limited period, and then removing them from the chamber, as set forth.
In testimony whereof lhave signed my name to this specification in the presence of twosubscribing witnesses.
ISABEL M. MITCHELL.
Witnesses:
HARRY DRURY,
HARRY SMITH.
Publications (1)
Publication Number | Publication Date |
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US277768A true US277768A (en) | 1883-05-15 |
Family
ID=2346990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US277768D Expired - Lifetime US277768A (en) | Process of preserving food |
Country Status (1)
Country | Link |
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US (1) | US277768A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5700505A (en) * | 1995-12-28 | 1997-12-23 | Mei Research, Inc. | Method of improving head rice yield |
-
0
- US US277768D patent/US277768A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5700505A (en) * | 1995-12-28 | 1997-12-23 | Mei Research, Inc. | Method of improving head rice yield |
US5845564A (en) * | 1995-12-28 | 1998-12-08 | Mei Research, Inc. | Apparatus for improving head rice yield |
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