Dual Heat Strip And Removable Tray For A Vacuum Sealing Machine
A vacuum sealing machine includes a base assembly having an upper base portion removably secured to a lower base portion and displacing relative to the lower base portion from a closed position to an open position. Two or more heating strips are disposed on the lower base portion, and each of the heating strips is adapted to seal a portion of an open end of a sealable bag disposed between the lower and upper base portions. At least one securement feature is disposed on the upper base portion and is adapted to apply pressure to a portion of the open end of the inserted sealable bag when the sealable bag is sealed by at least one of the heating strips. In addition, A control unit including at least one microprocessor and a memory unit is in communication with each of the two or more heating strips.
Latest CTI INDUSTRIES CORP. Patents:
This disclosure relates generally to machines that preserve food, and, more particularly, to vacuum sealing machines.
BACKGROUNDVacuum sealing machines are typically used by consumers to package a desired portion of perishable items (e.g., food, such as meat) in a manner that preserves the food during long term-storage, such as storage in a freezer. To use the vacuum sealing machine, the desired portion of food is placed in an open end of an appropriately-sized plastic sealable bag. The open end of the bag is then inserted into a receiving portion, such as a slot, of the vacuum sealing machine, and a vacuum process is initiated by the user to evacuate air from the interior of the bag. When the air evacuation process is complete, a heat sealer creates a transverse seal across the open end of the bag to create a completely sealed package enclosing the portion of food.
Typically, a large quantity of food is vacuum sealed at the same time. In such instances, frequent use causes the temperature of the heat sealer to rise and remain at unacceptable levels. When at such levels, placing the open end of the bag in contact with the heat sealer, which occurs during the air evacuation process, results in unwanted sealing of the bag before air is fully evacuated. To avoid such unwanted premature sealing, the heat sealer must be allowed to cool between uses to a temperature in which no premature sealing of the bag occurs. However, it is difficult for the user to determine when the temperature falls to an acceptable level, and the user wastes a significant amount of time waiting for the temperature to fall.
In addition, food particles and liquid can spill out of the open end of the bag and into a vacuum chamber formed in an interior portion of the vacuum sealing machine during the air evacuation process. Such a vacuum chamber is typically difficult to access when it is desired to clean the vacuum chamber after use. Further, a user typically uses a single-sized open-ended plastic sealable bag regardless of the size of the portion to be preserved. Thus, bag space is wasted or multiple bags are used when a single, larger bag is desired.
Accordingly, there is a need for a vacuum sealing machine that does not prematurely seal an open end of a sealable bag and does not require significant downtime to wait for the heat sealer to cool. There is also a need for a more accessible vacuum chamber to make cleaning more convenient. Moreover, there is a need for a custom bag creator that easily allows for the creation of a desired bag size.
BRIEF SUMMARY OF THE DISCLOSUREA vacuum sealing machine includes a base assembly having a lower base portion having a lower vacuum gasket and an upper base portion removably secured to the lower base portion, the upper base portion having an upper vacuum gasket. The upper base portion displaces relative to the lower base portion from a first closed position to a second open position, and the lower vacuum gasket and the upper vacuum gasket cooperate to at least partially define a vacuum chamber in the first closed position. The vacuum sealing machine also includes two or more heating strips disposed on a first one of the lower base portion or the upper base portion of the base assembly, and each of the two or more heating strips is adapted to seal a portion of an open end of a sealable bag disposed between the lower base portion and the upper base portion. The vacuum sealing machine further includes at least one securement feature disposed on a second one of the lower base portion or the upper base portion of the base assembly, and the at least one securement feature is adapted to apply pressure to a portion of the open end of the inserted sealable bag when the sealable bag is sealed by at least one of the heating strips. In addition, the vacuum sealing machine includes a control unit including at least one microprocessor and a memory unit, and the control unit is in communication with each of the two or more heating strips.
A method of controlling a vacuum sealing machine having a lower base portion and an upper base portion that displaces relative to the lower base portion from a first closed position to a second open position includes issuing a first command by a control unit of the vacuum sealing machine to energize a first heating strip disposed on one of the lower base portion or the upper base portion to heat a portion of an open end of a first sealable bag disposed between the lower base portion and the upper base portion in the first closed position. The method also includes issuing a second command by the control unit of the vacuum sealing machine to energize a second heating strip disposed adjacent to the first heating strip disposed on one of the lower base portion or the upper base portion to heat a portion of an open end of a second sealable bag disposed between the lower base portion and the upper base portion in the first closed position.
As illustrated in
In the embodiment illustrated in
In the embodiment illustrated in
While the Figures illustrate that the two heating strips 16a, 16b are arranged on the lower base portion 12 and the elongated gaskets 27a, 27b are disposed on the upper base portion 14, the two heating strips 16a, 16b may be arranged on the upper base portion 14 and the elongated gaskets 27a, 27b may be disposed on the lower base portion 12.
Each of the plurality of securement features 26 may correspond in length, orientation, and general size to a corresponding heating strip 16a, 16b. For example, the upper base portion 14 may include two gaskets 27a, 27b that each extend along a longitudinal axis 28a, 28b that may each be parallel to the Y-axis of the reference coordinate system provided in
As illustrated in
As illustrated in
As illustrated in
As illustrated in
As illustrated in
Still referring to
As illustrated in
As illustrated in
As illustrated in
In alternative embodiments, the lower mating features 30 of the lower base portion 12 may include the first upper hinge member 46a and the second upper hinge member 46b, and the upper mating features 32 of the upper base portion 14 may include the first lower hinge member 34a and the second lower hinge member 34b. That is, the projections 54a, 54b may be disposed on the lower base portion 12 and the receiving portions 44a, 44b may be disposed on the upper base portion 14. The upper base portion 14 and/or the lower base portion 12 may each be a component of a housing assembly (e.g., the housing assembly 15 illustrated in
As illustrated in
In use, the lower base portion 12 and the upper base portion 14 may be in an open position in which the lower base portion 12 is offset from the upper base portion 14. More specifically, the lower mating features 30 may rotate relative to the upper mating features 32 (or vice versa). In the embodiment illustrated in
The sealing time may be predetermined by the control unit, or may be manually adjusted or controlled by the user. Sensors, such as heat sensors, may be in communication with the control unit to alert the control unit (or user) that the transverse seal is secure.
Each of the heating strips 16a, 16b may alternate after each use, or may alternate after a predetermined number of uses. The sensor(s) may also allow the control unit to automatically alternate heating strips 16a, 16b if a limit temperature is reached. In some applications, both heating strips 16a, 16b may be employed simultaneously to form two parallel transverse seals that improves bond strength.
Accordingly, the two (or more) heating strips 16a, 16b allow the user of a vacuum sealer machine to continuously utilize the machine without waiting the usual “cool down” period in which the temperature of single heating strip decreases. That is, one of the two (or more) heating strips 16a, 16b will always be in a cool-down state. Existing vacuum sealing machines having a single heat strip require an average 20 seconds of “cool down” between cycles and usually after 8 continuous cycles a 20 minute “cool down.” These cool down periods can be eliminated with the two (or more) heating strips 16a, 16b of the current configuration.
To facilitate cleaning, the lower base portion 12 and the upper base portion 14 are removable, as mentioned. To disengage the lower base portion 12 from the upper base portion 14, the first upper hinge member 46a and the second upper hinge member 46b are displaced such that the projections 54a, 54 are no longer received into the receiving portions 44a, 44b of the first and second lower hinge members 34a, 34b. The first and second upper hinge members 46a, 46b may be manually displaced by flexing the tab portions 48a, 48b by an outward force (i.e., away from the lower base portion 12) applied along the Y-axis of the reference coordinate system of
As illustrated in
In another embodiment, a mechanism or assembly to create custom-sized bags is illustrated, and the custom-sized bags can be used in any suitable vacuum sealing machine, including the vacuum sealing machine previously described. The custom bag assembly 10 may be a portion of a vacuum sealing machine or may be a stand-alone device. The custom bag assembly 10 may include a roll of material that is pre-sealed along a first lateral edge and a second lateral edge but is not sealed between the first and second lateral edges. The length of the roll (i.e., the distance between the first and second lateral edges) may have any suitable value, such as 10″ or 8″. The roll may be mounted, or may be adapted to be mounted, inside the housing assembly.
The custom bag assembly 10 may also include one or more seal bar or pair of seal bars. The seal bar or pair of seal bars cooperate to form a transverse seal (i.e., a seal that extends from the first lateral edge to the second lateral edge) on the material stored on the roll, and the transverse seal, the pre-sealed first lateral edge, and the pre-sealed second lateral edge may cooperate to form a sealable bag having a single open end that is adapted to be used in a suitable vacuum sealing machine. The seal bar or pair of seal bars may form any type of seal on the sealable bag, and the seal bar or pair of seal bars may have a heated portion to form a heat seal. The seal bars or pair of seal bars may be stationary and may disposed within an interior portion of the housing along a feed path of the material that is fed from the roll. Alternatively, the seal bars or pair of seal bars may displace relative to the roll, or the roll may displace relative to the seal bar or pair of seal bars. The seal bars or pair of seal bars may be the dual heat strip configuration previously described, and the use of the heat strips may alternate to reduce down time.
The custom bag assembly 10 may also include a cutting mechanism may be disposed along the feed path of the material that is fed from the roll, and the cutting mechanism may be disposed adjacent to the seal bar or pair of seal bars. The cutting mechanism may cut the material of the roll adjacent to the transverse seal to create an edge of a sealable bag having a single open end. The cutting mechanism may be powered in any suitable manner, such as by an electric motor that may be disposed within the housing.
The custom bag assembly 10 may also include a feeding mechanism that may advance the material along the feed path that is fed from the roll, and the feed path may extend from the roll to an outlet location of the custom bag assembly 10. The feeding mechanism may include one or more rollers and the rollers may be disposed at any suitable location along the feed path. The feeding mechanism may be disposed within the housing. The feeding mechanism may be powered by an electric motor that may be disposed within the housing.
The custom bag assembly 10 may also include a control unit that may be in communication with the feeding mechanism, the cutting mechanism, and the one or more seal bar or pair of seal bars. The control unit may include one or more microprocessors, and the control unit may be disposed in any suitable location, such as within the housing.
In operation, a custom bag of an adjustable length may be created by a user. Specifically, the user may initiate the process by entering a desired volume or length (i.e., distance normal to the distance between the first lateral edge and the second lateral edge) of a sealable bag. The user may initiate the process by pressing one of a plurality of buttons or keys or areas on an input device (e.g., a touchscreen device or a tactile keypad), and the input device may be in communication with the control unit. Each of the plurality of buttons may correspond to a preselected bag volume. For example, one button may correspond to a gallon-sized bag and a second button may correspond to a quart-sized bag. When a desired size is input (by pressing a corresponding button, for example), the control unit may command the feeding mechanism to advance a portion of the material of the roll to a predetermined location. One or more sensors that may be in communication with the control unit may be used to accurately position the roll. The control unit may then command the seal bar or pair of seal bars to form a transverse seal at the portion of the material, and the control unit may next command the cutting mechanism to cut the material of the roll adjacent to the transverse seal to create an edge of a sealable bag having a single open end. The control unit may then command the feeding mechanism to advance the sealable bag to the output location, which may be a slot formed in the housing. A user may then remove the sealable bag from the slot, and the sealable bag may be ready to be vacuum sealed. In other embodiments, the seal bar or pair of seal bars may move relative to the roll to form a transverse seal at the portion of the material.
In addition to preset sizes, the custom bag assembly 10 may generate custom-sized sealable bags based on user input. For example, the user may initiate the process by pressing one of a plurality of buttons on the input device, such as an advance button in communication with the feeding mechanism that advances the roll to as long as the button is pressed. The outlet location may be disposed adjacent to the seal bar or pair of seal bars and the cutting mechanism so that the user can see the size of the bag prior to creating the transverse seal and cutting the transverse edge. When the user has determined that the roll has advanced to a desired location, the user may release the advance button. A second button, such as a seal button, may then be pressed by the user to create a desired transverse seal and cut edge as previously described. If necessary, the control unit may then command the feeding mechanism to advance the sealable bag to the output location. A user may then remove the sealable bag from the slot, and the sealable bag may be ready to be vacuum sealed. In other embodiments, the seal bar or pair of seal bars may move relative to the roll to form a transverse seal at the portion of the material.
The automatic bag creation feature takes the “guess work” out of creating a bag for the consumer. The consumer can purchase rolls of material in bulk, thus saving money and still be able to create a given bag size as if they purchased it directly from the store in a pre-cut size. The custom size bag creation also allows for flexibility in that the consumer is not limited to a specific bag size, but can create any desired bag size, based on the roll length.
Example process flow charts are provided in
While various embodiments have been described above, this disclosure is not intended to be limited thereto, and variations can be made to the disclosed embodiments.
Claims
1. A vacuum sealing machine comprising:
- a base assembly comprising: a lower base portion having a lower vacuum gasket; and an upper base portion removably secured to the lower base portion, the upper base portion having an upper vacuum gasket, wherein the upper base portion displaces relative to the lower base portion from a first closed position to a second open position, and wherein the lower vacuum gasket and the upper vacuum gasket cooperate to at least partially define a vacuum chamber in the first closed position;
- two or more heating strips disposed on a first one of the lower base portion or the upper base portion of the base assembly, wherein each of the two or more heating strips is adapted to seal a portion of an open end of a sealable bag disposed between the lower base portion and the upper base portion;
- at least one securement feature disposed on a second one of the lower base portion or the upper base portion of the base assembly, the at least one securement feature adapted to apply pressure to a portion of the open end of the inserted sealable bag when the sealable bag is sealed by at least one of the heating strips; and
- a control unit including at least one microprocessor and a memory unit, the control unit in communication with each of the two or more heating strips.
2. The vacuum sealing machine of claim 1, wherein the lower base portion includes two heating strips.
3. The vacuum sealing machine of claim 2, wherein the lower base portion includes two heating strips that are elongated and extend along a longitudinal axis.
4. The vacuum sealing machine of claim 3, wherein each of the two heating strips extends from a first end to a longitudinally-opposite second end, the first end being disposed at or adjacent to a first lateral edge portion of the lower base portion and the second end being disposed at or adjacent to a second lateral edge portion of the lower base portion.
5. The vacuum sealing machine of claim 1, wherein the upper base portion is releasably coupled with the lower base portion.
6. The vacuum sealing machine of claim 1, wherein the upper base portion pivots relative to the lower base portion from the first closed position to the second open position.
7. The vacuum sealing machine of claim 4, wherein the upper base portion includes two elongated gaskets having a bottom portion that overlaps or contacts a corresponding portion of a corresponding one of the heating strips when the upper and lower base portions are in the first closed position.
8. The vacuum sealing machine of claim 1, wherein the lower base portion includes one or more lower mating features and the upper base portion includes one or more upper mating features that cooperate with the lower mating features to removably and rotatably couple the lower base portion to the upper base portion.
9. The vacuum sealing machine of claim 1, wherein the lower base portion and the upper base portion are adapted to be received into a portion of a housing assembly.
10. The vacuum sealing machine of claim 9, wherein at least one of the lower base portion or the upper base portion includes at least one of vacuum connections or electrical connections that automatically engage corresponding vacuum connections and/or electrical connections formed on the housing assembly.
11. The vacuum sealing machine of claim 1, further comprising a first sensor in communication with a first of the two or more heating strips and a second sensor in communication with a first of the two or more heating strips, wherein both the first sensor and second sensor are in communication with the control unit.
12. The vacuum sealing machine of claim 10, wherein information from one of the first sensor or the second sensor is communicated to the control unit, and wherein the control unit determines which of the first heating strip and second heating strip to energeize based on the information from the one of the first sensor or the second sensor.
13. The vacuum sealing machine of claim 11, wherein the information is a temperature of the first heating strip or a temperature of the second heating strip.
14. A method of controlling a vacuum sealing machine having a lower base portion and an upper base portion that displaces relative to the lower base portion from a first closed position to a second open position, the method comprising:
- issuing a first command by a control unit of the vacuum sealing machine to energize a first heating strip disposed on one of the lower base portion or the upper base portion to heat a portion of an open end of a first sealable bag disposed between the lower base portion and the upper base portion in the first closed position; and
- issuing a second command by the control unit of the vacuum sealing machine to energize a second heating strip disposed adjacent to the first heating strip disposed on one of the lower base portion or the upper base portion to heat a portion of an open end of a second sealable bag disposed between the lower base portion and the upper base portion in the first closed position.
15. The method of claim 14, wherein the first command is issued by the control unit in response to information received by the control unit from a first sensor in communication with the first heating strip and the control unit.
16. The method of claim 15, wherein the second command is issued by the control unit in response to information received by the control unit from a second sensor in communication with the second heating strip and the control unit.
17. The method of claim 16, wherein at least one of the first command or the second command is issued automatically by the control unit.
18. The method of claim 16, wherein the first command is issued by the control unit in response to a reaching a temperature limit and wherein the second command is issued by the control unit in response to a reaching a temperature limit.
19. A method of creating a custom-sized bag having a single unsealed edge for use with a vacuum sealing machine, the method comprising:
- determining by a control unit a width of a roll of bag material used to make the custom-sized bag;
- determining by the control unit a desired bag volume of the custom-sized bag;
- command a feeding mechanism to advance the roll of bag material a predetermined amount based on the desired bag volume, wherein the command to the feeding mechanism is issued by the control unit;
- command at least one seal bar to energize to form a transverse seal across the roll of bag material when the roll of bag material advanced the predetermined amount, wherein the command to energize the at least one seal bar is issued by the control unit; and
- command a cutting mechanism to activate to cut the roll of bag material adjacent to the transverse seal to create a sealable bag having a single open end and the desired bag volume, wherein the command to activate the cutting mechanism is issued by the control unit.
20. The method of claim 19, wherein determining the width of the roll of bag material is automatically determined by a sensor or determined by a user input.
21. The method of claim 19, wherein determining desired bag volume of the custom-sized bag is determined by a user input.
22. The method of claim 19, further comprising:
- command the feeding mechanism to advance the sealable bag having the single open end to an output location.
Type: Application
Filed: May 21, 2014
Publication Date: Nov 27, 2014
Applicant: CTI INDUSTRIES CORP. (Barrington, IL)
Inventors: Jose Diaz (Weston, FL), Miguel Martinez (Parkland, FL), Scott Koszalinski (Boynton Beach, FL)
Application Number: 14/284,235
International Classification: B65B 51/10 (20060101); B65B 43/04 (20060101); B65B 31/02 (20060101); B65B 59/00 (20060101);