WO2022091148A1 - Vacuum packaging machine with built-in sanitization cycle and relative sanitization method - Google Patents

Vacuum packaging machine with built-in sanitization cycle and relative sanitization method Download PDF

Info

Publication number
WO2022091148A1
WO2022091148A1 PCT/IT2021/050302 IT2021050302W WO2022091148A1 WO 2022091148 A1 WO2022091148 A1 WO 2022091148A1 IT 2021050302 W IT2021050302 W IT 2021050302W WO 2022091148 A1 WO2022091148 A1 WO 2022091148A1
Authority
WO
WIPO (PCT)
Prior art keywords
vacuum packaging
vacuum
decompression chamber
packaging machine
solenoid valve
Prior art date
Application number
PCT/IT2021/050302
Other languages
French (fr)
Inventor
Luca Marzaro
Original Assignee
Sirman S.P.A.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sirman S.P.A. filed Critical Sirman S.P.A.
Publication of WO2022091148A1 publication Critical patent/WO2022091148A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
    • B65B31/024—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for wrappers or bags
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/20—Gaseous substances, e.g. vapours
    • A61L2/202—Ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/14—Applying or generating heat or pressure or combinations thereof by reciprocating or oscillating members
    • B65B51/146—Closing bags
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/15—Biocide distribution means, e.g. nozzles, pumps, manifolds, fans, baffles, sprayers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/18—Aseptic storing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/06—Sterilising or cleaning machinery or conduits

Definitions

  • This invention generally relates to a vacuum packaging machine and more particularly, to a new device that can be installed inside vacuum packaging machines, which allows to adequately sanitize the environment where the packaging takes place, as well as consequently the product to be packaged.
  • the invention also relates to the relative sanitization procedure.
  • packaging using vacuum packaging machines takes place by introducing the product to be packaged inside a plastic bag or a container suitable for vacuum packaging and placing the bag containing the product inside a decompression chamber consisting of a support surface and a pivoting bell comprising elements adapted to seal the bag or container and maintain the vacuum inside the chamber.
  • a suction cycle is started by means of a pump and, at the end of the cycle, when the residual pressure inside the vacuum chamber reaches 1 or 2 millibars (absolute), the bag containing the product is sealed using the same pressure difference between the inside of the vacuum chamber and the atmosphere, by means of special membranes connected to the sealing bars of the pivoting bell and to a solenoid valve.
  • the atmospheric air enters the vacuum chamber (or decompression chamber) and the atmospheric pressure allows the bag to adhere completely to the packaged product, while simultaneously ensuring the sealing of the package.
  • the aim of this invention is therefore to obviate the technical drawbacks mentioned above and in particular, to provide a vacuum packaging machine which allows the operator to perform one or more cycles for sanitizing the space inside which the products to be vacuum packaged are placed.
  • Another aim of the invention is to provide a vacuum packaging machine which is extremely reliable, simple and economical, in view of the advantages achieved.
  • FIG. 1 shows a front top view of a vacuum packaging machine according to this invention, in operating conditions and therefore during the step of creating a vacuum and of packaging the product;
  • FIG. 2 shows a perspective top view of the vacuum packaging machine in Figure 1 , in resting conditions
  • FIG. 3 shows a front view of the vacuum packaging machine in Figures 1 and 2, partially open, showing the inner components
  • FIG. 4 shows a basic circuit diagram of the operation of the sanitization cycle applied to the vacuum packaging machine according to this invention.
  • the vacuum packaging machine comprises a support and containment structure 10 equipped with a front control panel 14 and a side power button 16 and adapted to contain therein the functional parts of the machine.
  • the support and containment structure 10 includes a decompression chamber 1 1 for vacuum packaging a product, for example inside a plastic bag or other suitable container.
  • the decompression chamber 1 1 consists of a support surface covered by a pivoting bell 12, possibly equipped with extenders 15 for easier opening and adapted to seal the open edges of the bag by means of perimeter sealing bars 13.
  • the support and containment structure 10 also comprises a base 17, where all the functional components of the machine are fixed, including in particular, a vacuum pump 21 and a frame 18, equipped with cooling slits 20, hinged to the base 17 on one side and openable from the front to have access to the aforementioned functional components of the machine; the frame 18 can be kept in the open position by means of a spacer 19.
  • an electronic control board specially installed inside the machine and managed by a suitably designed software allows the operator to program and execute, through the control panel 14, a sanitization cycle using Ozone inside the chamber 1 1 where the products to be vacuumpackaged are placed.
  • the software checks the percentage of vacuum inside the chamber 1 1 and once this percentage has reached a prefixed maximum value, the same software activates a device 30, which is advantageously placed on the base 17 of the machine, adapted to emit Ozone for a variable time according to the volume inside the chamber 1 1 .
  • the device 30 is connected to a first discharge solenoid valve 31 which is controlled to be closed so that the Ozone emitted by the device 30 is sucked into the chamber 1 1 .
  • the device 30 is also connected directly to the intake ducts of the pump 21 so that the aforementioned ducts can also be sanitized.
  • the discharge solenoid valve 31 remains closed only for the time necessary to allow the Ozone emitted by the device 30 to flow into the decompression chamber 11 and to maintain a percentage of vacuum such as to ensure a watertight closure of the chamber 1 1 for several hours.
  • the discharge solenoid valve 31 opens, causing air to enter the chamber 1 1 by means of a second solenoid valve 32; the entry of air into the chamber 1 1 also allows the opening of the bell 12.
  • the actuation of the solenoid valve 32 also allows the sealing of the package containing the product.
  • the sealing of the package containing the product is carried out using the pressure difference between the inside of the chamber 1 1 and the atmosphere, through membranes 33 connected to the sealing bars 13 and to the solenoid valve 32.
  • a vacuum packaging machine is thus created wherein the operator can program and/or carry out one or more sanitization cycles; these cycles are preferably carried out at the end of the working cycle of the machine in order to have a complete sanitization of the packaging environment and of the product to be packaged at each use.
  • the operation is therefore effective and can be carried out in a simple and fast way by an operator directly from the control panel of the machine.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vacuum Packaging (AREA)

Abstract

An improved vacuum packaging machine, comprising a support and containment structure (10) which includes a decompression chamber (11 ) for vacuum packaging a product, consisting of a support surface covered by a pivoting bell (12), and a base (17), to which a frame (18) and a vacuum pump (21 ) having intake ducts connected to the decompression chamber (11 ) are fixed. The intake ducts of the vacuum pump (21 ) are directly connected to a device (30) which is adapted to emit Ozone, which is connected to a solenoid valve (31 ), said solenoid valve being closed, in a working condition, so that the Ozone emitted by the device (30) is sucked inside the decompression chamber (11 ) and is capable of sanitizing also the aforesaid intake ducts.

Description

VACUUM PACKAGING MACHINE WITH BUILT-IN SANITIZATION CYCLE AND RELATIVE SANITIZATION METHOD
This invention generally relates to a vacuum packaging machine and more particularly, to a new device that can be installed inside vacuum packaging machines, which allows to adequately sanitize the environment where the packaging takes place, as well as consequently the product to be packaged. The invention also relates to the relative sanitization procedure.
In general, packaging using vacuum packaging machines takes place by introducing the product to be packaged inside a plastic bag or a container suitable for vacuum packaging and placing the bag containing the product inside a decompression chamber consisting of a support surface and a pivoting bell comprising elements adapted to seal the bag or container and maintain the vacuum inside the chamber.
By closing the pivoting bell, a suction cycle is started by means of a pump and, at the end of the cycle, when the residual pressure inside the vacuum chamber reaches 1 or 2 millibars (absolute), the bag containing the product is sealed using the same pressure difference between the inside of the vacuum chamber and the atmosphere, by means of special membranes connected to the sealing bars of the pivoting bell and to a solenoid valve.
At the end of the sealing step, the atmospheric air enters the vacuum chamber (or decompression chamber) and the atmospheric pressure allows the bag to adhere completely to the packaged product, while simultaneously ensuring the sealing of the package.
If the package were opened or damaged, the bag would no longer adhere to the packaged product, thus alerting any purchaser of the product.
There are no sanitization cycles in known machines, with consequent possible drawbacks resulting from the contamination of the environment where the packaging takes place and of the product to be packaged and from the possible proliferation of viruses and bacteria.
The aim of this invention is therefore to obviate the technical drawbacks mentioned above and in particular, to provide a vacuum packaging machine which allows the operator to perform one or more cycles for sanitizing the space inside which the products to be vacuum packaged are placed.
Another aim of the invention is to provide a vacuum packaging machine which is extremely reliable, simple and economical, in view of the advantages achieved.
These and other aims are achieved by a vacuum packaging machine according to the appended claim 1 , and by means of a relative sanitization method according to claim 6; other detailed features are indicated in the subsequent claims.
Further aims and advantages of the invention will more fully emerge from the description that follows, relative to a preferred but non-limiting embodiment of the vacuum packaging machine according to the invention, and from the appended drawings, wherein:
- Figure 1 shows a front top view of a vacuum packaging machine according to this invention, in operating conditions and therefore during the step of creating a vacuum and of packaging the product;
- Figure 2 shows a perspective top view of the vacuum packaging machine in Figure 1 , in resting conditions;
- Figure 3 shows a front view of the vacuum packaging machine in Figures 1 and 2, partially open, showing the inner components;
- Figure 4 shows a basic circuit diagram of the operation of the sanitization cycle applied to the vacuum packaging machine according to this invention.
First of all, it should be noted that in the continuation of this description, for obvious reasons of brevity, all the structural and operating details of the vacuum packaging machine according to the invention, which are known and belong to the state of the art, will be omitted.
With particular reference to the aforementioned Figures 1 , 2 and 3, the vacuum packaging machine according to this invention comprises a support and containment structure 10 equipped with a front control panel 14 and a side power button 16 and adapted to contain therein the functional parts of the machine. Advantageously, the support and containment structure 10 includes a decompression chamber 1 1 for vacuum packaging a product, for example inside a plastic bag or other suitable container.
Still advantageously, the decompression chamber 1 1 consists of a support surface covered by a pivoting bell 12, possibly equipped with extenders 15 for easier opening and adapted to seal the open edges of the bag by means of perimeter sealing bars 13.
Still advantageously, the support and containment structure 10 also comprises a base 17, where all the functional components of the machine are fixed, including in particular, a vacuum pump 21 and a frame 18, equipped with cooling slits 20, hinged to the base 17 on one side and openable from the front to have access to the aforementioned functional components of the machine; the frame 18 can be kept in the open position by means of a spacer 19.
Basically, according to this invention and with particular reference to attached Figure 4, an electronic control board specially installed inside the machine and managed by a suitably designed software allows the operator to program and execute, through the control panel 14, a sanitization cycle using Ozone inside the chamber 1 1 where the products to be vacuumpackaged are placed.
It is advisable to carry out this sanitization cycle at the end of each working cycle of the machine.
In practice, once the operator commands the start of a sanitization cycle from the panel 14, the software checks the percentage of vacuum inside the chamber 1 1 and once this percentage has reached a prefixed maximum value, the same software activates a device 30, which is advantageously placed on the base 17 of the machine, adapted to emit Ozone for a variable time according to the volume inside the chamber 1 1 .
The device 30 is connected to a first discharge solenoid valve 31 which is controlled to be closed so that the Ozone emitted by the device 30 is sucked into the chamber 1 1 . The device 30 is also connected directly to the intake ducts of the pump 21 so that the aforementioned ducts can also be sanitized.
The discharge solenoid valve 31 remains closed only for the time necessary to allow the Ozone emitted by the device 30 to flow into the decompression chamber 11 and to maintain a percentage of vacuum such as to ensure a watertight closure of the chamber 1 1 for several hours.
It is provided to have the Ozone act inside the chamber 11 for a predetermined time and preferably for 60 minutes, during which the operator can check the sanitization process; in this time period, after having performed its sanitizing action, the Ozone decays naturally, thus eliminating its potential danger to people and the environment.
After the aforementioned time period, the discharge solenoid valve 31 opens, causing air to enter the chamber 1 1 by means of a second solenoid valve 32; the entry of air into the chamber 1 1 also allows the opening of the bell 12.
The actuation of the solenoid valve 32 also allows the sealing of the package containing the product.
At the end of the suction phase by the pump 21 , the sealing of the package containing the product is carried out using the pressure difference between the inside of the chamber 1 1 and the atmosphere, through membranes 33 connected to the sealing bars 13 and to the solenoid valve 32.
A vacuum packaging machine is thus created wherein the operator can program and/or carry out one or more sanitization cycles; these cycles are preferably carried out at the end of the working cycle of the machine in order to have a complete sanitization of the packaging environment and of the product to be packaged at each use.
The operation is therefore effective and can be carried out in a simple and fast way by an operator directly from the control panel of the machine.
The technical characteristics of the vacuum packaging machine the object of this invention clearly emerge from the description, as do the advantages thereof.
Finally, it is apparent that a preferred embodiment of this invention has been described, but it shall be understood that the invention may be modified and/or adapted by experts in the field without thereby departing from the scope of the inventive concept, as defined in the claims herein.

Claims

6 CLAIMS
1. A vacuum packaging machine, comprising a support and containment structure (10) which includes a decompression chamber (1 1 ) for vacuum packaging a product and a base (17), to which a frame (18) and at least one vacuum pump (21 ) having intake ducts connected to said decompression chamber (1 1 ) are fixed, characterized in that said intake ducts of said at least one vacuum pump (21 ) are directly connected to a device (30) which emits Ozone, said device (30) being connected to a first solenoid valve (31 ) and said solenoid valve (31 ) being closed, in a working condition, so that the Ozone emitted by said device (30) is sucked inside said decompression chamber (11 ) and is also used for sanitizing said intake ducts.
2. The vacuum packaging machine as claimed in claim 1 , characterized in that said device (30) which emits Ozone is controlled by an electronic board, installed inside the machine and managed by a programming and operating software, said device (30) being activated by an operator through a control panel (14) of the machine.
3. The vacuum packaging machine as claimed in claim 1 , characterized in that said decompression chamber (1 1 ) includes a support surface covered by a pivoting bell (12).
4. The vacuum packaging machine as claimed in claim 3, characterized in that said pivoting bell (12) is equipped with extenders (15).
5. The vacuum packaging machine as claimed in at least one of claims 3 and 4, characterized in that said pivoting bell (12) has perimeter sealing bars (13) for sealing the open edges of a packaging element of at least one product.
6. Sanitizing method implemented on a vacuum packaging machine as claimed in claim 1 , characterized in that said method comprises at least the following steps:
- activating said vacuum pump (21 ) to create the vacuum inside said decompression chamber (1 1 ); 7
- activating said device (30) which emits Ozone when the percentage of vacuum inside said depression chamber (1 1 ) has reached a prefixed maximum value;
- operating said device (30) and delivering the Ozone into the decompression chamber (1 1 ) for a variable time period, which depends on the volume of said decompression chamber (1 1 ), by closing said first solenoid valve (31 ) for said time period, during which the Ozone emitted from said device (30) flows inside said decompression chamber (1 1 ) and said prefixed maximum value of the vacuum’s percentage is maintained inside said decompression chamber (1 1 );
- opening said first solenoid valve (31 ) after said time period for entering air into said depression chamber (1 1 ) through a second solenoid valve (32).
7. The sanitizing method as claimed in claim 6, characterized in that said time period is preferably set at 60 minutes.
8. The sanitizing method as claimed in claim 6, characterized in that said method is implemented on said vacuum packaging machine at the end of each working cycle of said machine.
PCT/IT2021/050302 2020-10-30 2021-10-01 Vacuum packaging machine with built-in sanitization cycle and relative sanitization method WO2022091148A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102020000025840A IT202000025840A1 (en) 2020-10-30 2020-10-30 VACUUM PACKAGING MACHINE WITH INCORPORATED SANITATION CYCLE AND RELATED SANITATION METHOD.
IT102020000025840 2020-10-30

Publications (1)

Publication Number Publication Date
WO2022091148A1 true WO2022091148A1 (en) 2022-05-05

Family

ID=74194875

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2021/050302 WO2022091148A1 (en) 2020-10-30 2021-10-01 Vacuum packaging machine with built-in sanitization cycle and relative sanitization method

Country Status (2)

Country Link
IT (1) IT202000025840A1 (en)
WO (1) WO2022091148A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004323066A (en) * 2003-04-25 2004-11-18 Tosei Denki Kk Gas filling and packaging machine
EP1943932B1 (en) * 2007-01-11 2010-09-15 GIORGIA S.r.l. Household appliance for sanitizing foods
CN207932074U (en) * 2017-12-11 2018-10-02 湛江国联水产种苗科技有限公司 A kind of aquatic products processing vacuum packing machine
CN211766548U (en) * 2020-01-10 2020-10-27 佛山市塑家电器科技有限公司 Vacuum sealing machine with disinfection function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004323066A (en) * 2003-04-25 2004-11-18 Tosei Denki Kk Gas filling and packaging machine
EP1943932B1 (en) * 2007-01-11 2010-09-15 GIORGIA S.r.l. Household appliance for sanitizing foods
CN207932074U (en) * 2017-12-11 2018-10-02 湛江国联水产种苗科技有限公司 A kind of aquatic products processing vacuum packing machine
CN211766548U (en) * 2020-01-10 2020-10-27 佛山市塑家电器科技有限公司 Vacuum sealing machine with disinfection function

Also Published As

Publication number Publication date
IT202000025840A1 (en) 2022-04-30

Similar Documents

Publication Publication Date Title
US8327606B2 (en) Method and apparatus for sterilization
US4583347A (en) Vacuum packaging apparatus and process
AU2015101253A4 (en) Sterilisation services apparatus and method of sterilisation
US10858129B2 (en) Food storage appliance
EP0077458A1 (en) Vacuum packaging apparatus and process
KR101743058B1 (en) Compressing and Volume Reducing Apparatus for Infectious Waste
US20030035753A1 (en) Method for high vacuum sterilization of closures
US3481688A (en) Method and apparatus for autoclaving product-containing flexible pouch constructions or the like
WO2022091148A1 (en) Vacuum packaging machine with built-in sanitization cycle and relative sanitization method
US7021034B2 (en) Decoupled vacuum packaging appliance
WO2003075963A1 (en) Sterilizer
MXPA04007938A (en) Container storage system for vacuum packaging.
JP2016150756A (en) Vacuum packaging machine
JP6990546B2 (en) Vacuum packaging device and sterilization method in vacuum packaging device
WO2003075962A1 (en) Sterilizer and sterilizing method
KR102439328B1 (en) Autoclave Sterilization Process of First Containers Made of Glass
EP2499050A1 (en) Improved packaging machine
CN107922075A (en) For the apparatus and method and filling machine sterilized to sheet of packing meterial
JP2012100721A (en) Apparatus and method for sterilizing, disinfecting and storing article
KR101452177B1 (en) Device and method for sealing a cinerary urn
JPS6041963Y2 (en) steam sterilizer
JP6740010B2 (en) Vacuum packaging device and method for controlling vacuum packaging device
US2122853A (en) Means for fumigating materials
JP2969966B2 (en) Microwave drying equipment
CN215707594U (en) Vacuum sealing machine with UV (ultraviolet) sterilization device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21795021

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21795021

Country of ref document: EP

Kind code of ref document: A1