CN103832700B - Mastic automatic extruder - Google Patents
Mastic automatic extruder Download PDFInfo
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- CN103832700B CN103832700B CN201410108225.9A CN201410108225A CN103832700B CN 103832700 B CN103832700 B CN 103832700B CN 201410108225 A CN201410108225 A CN 201410108225A CN 103832700 B CN103832700 B CN 103832700B
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- cylinder
- diaphragm seal
- discharge nozzle
- mastic
- moves
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Abstract
The invention discloses a kind of mastic automatic extruder, including cylinder, first and second move device, press device, discharge nozzle and check valve, discharge nozzle is connected with cylinder, and check valve is arranged in discharge nozzle；First moves device is slidably arranged in cylinder and by the bottom end seal of cylinder, and second moves device is slidably arranged in cylinder and by the end sealing of cylinder, and discharge nozzle is connected with the top of cylinder；Press device is arranged at the top of cylinder and is positioned at the second top moving device, slides up and down along the inwall of cylinder for driving second to move device；First moves device includes the first diaphragm seal and isolator, and the first diaphragm seal is connected with isolator, and the first diaphragm seal is for by the bottom end seal of cylinder, and isolator can only move along the inwall of cylinder towards the direction away from cylinder bottom for making the first diaphragm seal。Above-mentioned mastic automatic extruder can easily by paste extrusion。
Description
Technical field
The present invention relates to a kind of mastic automatic extruder。
Background technology
The most toothpaste bag in existing market portion all adopts extruding bag mode to extrude toothpaste, and this design bag can not be reused, and environment is easily caused pollution；And, it is the toothpaste bag of unified structure on the market, comparatively single。
Summary of the invention
Embodiment of the present invention technical problem to be solved is in that, it is provided that a kind of can reuse and comparatively novel mastic automatic extruder。
A kind of mastic automatic extruder provided by the present invention, including: cylinder, first move device, second move device, press device, discharge nozzle and check valve, described first moves device and second moves device and may be contained within cylinder, described press device and second moves device and is connected, described discharge nozzle is connected with cylinder, and one end that described check valve is arranged in discharge nozzle and does not connect with cylinder on discharge nozzle is opened；Described first moves device is slidably arranged in cylinder near the position of its bottom and by the bottom end seal of cylinder；Described second moves device is slidably arranged near the position on its top and by the end sealing of cylinder in cylinder, and described discharge nozzle is connected with the top of cylinder；Described press device is arranged at the top of cylinder and is positioned at the second top moving device, and described press device slides up and down along the inwall of cylinder for driving second to move device；Described first moves device includes the first diaphragm seal and isolator, described first diaphragm seal is connected with isolator, described first diaphragm seal is for by the bottom end seal of cylinder, and described isolator can only move along the inwall of cylinder towards the direction away from cylinder bottom for making the first diaphragm seal；Wherein, described cylinder is cylindrical, and its top is step-like and includes Part I and Part II, and the height of Part I is less than the height of Part II, and described Part I seals and is connected with discharge nozzle；Described press device includes pressure handle, flexible member, fore-set and fixing plate, the column that one end of described pressure handle is protruded with the top middle portion of cylinder is hinged, described fixing plate is for the Part II on sealed cylinder top, described fixing plate is further opened with the through hole greater diameter than fore-set diameter, described second moves device includes the second diaphragm seal, described second diaphragm seal is for sealing the Part II of described cylinder, one end of described fore-set is fixing with the bottom surface of pressure handle to be connected, the other end is fixing with the second diaphragm seal after the through hole on fixing plate to be connected, the part that described flexible member is placed on fore-set between fixing plate and pressure handle；On described first diaphragm seal and the second diaphragm seal, thickness along its periphery is more than the thickness in centre position。
Wherein, move device move towards away from the direction of bottom only along the inwall of cylinder to meet first, in the present invention, described isolator includes connector and some legs, one end of described some legs is all flexibly connected with connector, the other end of described some legs and the inwall Interference contact of cylinder；Described connector is connected to the end face of the first diaphragm seal。
Wherein, can only opening towards the one end not connected with cylinder on discharge nozzle to meet check valve, in the present invention, described check valve includes catch and some legs, one end of described some legs is all connected with the end face of catch, and the other end of described some legs is provided with crotch。
Further, in the present invention, described flexible member is butterfly spring。
Further, in the present invention, described mastic automatic extruder also includes lid, and described lid sets described press device for the top cover being sheathed on cylinder。
Above-mentioned mastic automatic extruder utilizes the principle of pressure, and mastic can be made easily to be extruded, and can reuse and comparatively novel。
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings；
Fig. 1 is the structural representation of the first better embodiment of mastic automatic extruder of the present invention。
Fig. 2 is the structural representation of press device in Fig. 1。
Fig. 3 is the structural representation of check valve in Fig. 1。
Fig. 4 is the structural representation of the second better embodiment of mastic automatic extruder of the present invention。
Fig. 5 is the structural representation of press device in Fig. 4。
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
Although it should be appreciated that the term such as " first ", " second " can be used to describe various element, but these elements should do not limited by these terms herein。These terms are only used for distinguishing an element and another element。Therefore, " first " element discussed below can also be referred to as " second " element without departing from the teachings of the present invention。It should be appreciated that when mentioning an element " connection " or " coupled " to another element, it can be directly connected or be directly coupled to another element or can also there is intermediary element。On the contrary, when mentioning that an element " being directly connected " or " directly coupling " are to another element, be then absent from intermediary element。
Term is used only for describing the purpose of specific embodiment and being not intended as limitation of the invention as used herein。As used herein, unless context clearly dictates otherwise, then singulative is intended to also include plural form。
It should be further understood that, when using term " including " and/or " including " in this manual, these terms specify the existence of described feature, entirety, step, operation, element and/or parts, but are also not excluded for the existence of other features more than one, entirety, step, operation, element, parts and/or its group and/or additional。
In present embodiment, containing toothpaste and illustrate in mastic automatic extruder, certainly, mastic automatic extruder of the present invention also can contain and extrude other mastic, such as shoe polish, lubrication wet goods。
Refer to Fig. 1, first better embodiment of mastic automatic extruder of the present invention includes cylinder 1, first moves device 2, second moves device 3, press device 4, discharge nozzle 5, check valve 6 and lid 7, described first moves device 2 and second moves device 3 and may be contained within cylinder 1, described press device 4 moves device 3 with second and is connected, described discharge nozzle 5 is connected with cylinder 1, described check valve 6 is arranged in discharge nozzle 5, and described lid 7 sets described press device 4 for the top cover being sheathed on cylinder 1。Specifically, described first position that device 2 is slidably arranged in cylinder 1 bottom it is moved and by the bottom end seal of cylinder 1；Described second moves device 3 is slidably arranged near the position on its top and by the end sealing of cylinder 1 in cylinder 1, and described discharge nozzle 5 is connected with the top of cylinder 1, and described check valve 6 seals the junction being arranged at discharge nozzle 5 with cylinder 1；Described press device 4 is arranged at the top of cylinder 1 and is positioned at the second top moving device 3, and described press device 4 slides up and down along the inwall of cylinder 1 for driving second to move device 3。
Please referring again to shown in Fig. 1, in present embodiment, described cylinder 1 is cylindrical, and its top is step-like, and its bottom is not closed。Hereafter the step-like top of cylinder 1 being designated as Part I and Part II, wherein the height of Part I is less than the height of Part II。Described Part I seals and is connected with discharge nozzle 5, described Part II unsealing。
Described first moves device 2 includes the first diaphragm seal 20 and isolator 22, described first diaphragm seal 20 in round pie and along the thickness of its circumference more than the thickness in centre position, described isolator 22 includes connector 220 and some legs 222, and one end of described some legs 222 is all movably connected with connector 220。During installation, first the connector 220 of isolator 22 is fixed on the side of the first diaphragm seal 20, and push in cylinder 1 by the first diaphragm seal 20 is not connected with the top towards cylinder 1, the side of isolator 22 from the bottom end opening of cylinder 1, some legs 222 are opened to suitable position by the internal diameter size according to cylinder 1 simultaneously, so that the one end not being connected with connector 220 on some legs 222 all with the inwall Interference contact of cylinder 1, the bottom of cylinder 1 can be sealed。In present embodiment, the purpose of the thickness that thickness along its circumference on the first diaphragm seal 20 is set greater than centre position is in that better to be sealed the bottom of cylinder 1。The purpose of described isolator 22 is in that so that described first moves the device 2 inwall only along cylinder 1 and move towards the top of cylinder 1 and can not move towards the bottom of cylinder 1, concrete principle is: because some legs 222 are flexibly connected with connector 220, and when moving device 2 by first and pushing in cylinder 1, the one end not being connected with connector 220 on described some legs 222 all with the inwall Interference contact of cylinder 1, therefore, if the first diaphragm seal 20 is moved towards the bottom of cylinder 1, then according to direction firmly, now described some legs 222 can toward each other away from direction motion, restriction by the internal diameter size of cylinder 1, the one end not being connected with connector 220 on described some legs 222 can tightly be against on the inwall of cylinder 1, namely isolator 22 cannot move towards the direction of cylinder 1 bottom, and then make whole first to move device 2 cannot to move towards the direction of cylinder 1 bottom。
Shown in Fig. 2, described press device 4 includes pressure handle 40, flexible member 41, fore-set 43 and fixing plate 46, the column 10 that one end of described pressure handle 40 is protruded with the top middle portion of cylinder 1 is hinged, and namely one end of described pressure handle 40 can rotate certain angle relative to column 10。The size and shape of described fixing plate 46 is identical with the Part II of the step part on cylinder 1 top, and described fixing plate 46 is for the Part II on sealed cylinder 1 top。Described fixing plate 46 is further opened with the diameter through hole slightly larger than fore-set 43 diameter。Described second moves device 3 includes the second diaphragm seal 30, described second diaphragm seal 30 in round pie and along the thickness of its circumference more than the thickness in centre position, the equal diameters of the diameter of described second diaphragm seal 30 and the Part II on cylinder 1 top, can seal the Part II of described cylinder 1。In present embodiment, described flexible member 41 is butterfly spring。
One end of described fore-set 43 is fixing with the bottom surface of pressure handle 40 to be connected, and the other end is fixing with the second diaphragm seal 30 after the through hole on fixing plate 46 to be connected, the part that described flexible member 41 is then placed on fore-set 43 between fixing plate 46 and pressure handle 40。
Shown in Fig. 3, described check valve 6 includes catch 61 and some legs 66 (three legs shown in Fig. 3, other embodiments also may be greater than three or two), one end of described some legs 66 is all connected with the bottom surface of catch 61, the other end of described some legs 66 is provided with crotch, and described catch 61 is a circular piece。Concrete, the diameter of the connectivity part between Part I and the discharge nozzle 5 on the top of described cylinder 1 is less than the diameter of catch 61, and described catch 61 is positioned at the top of connectivity part, and described some legs 66 through connectivity part and stretch in cylinder 1。When producing in cylinder 1 to upward pressure, described catch 61 can move away from the direction of cylinder 1 in discharge nozzle 5, and then cylinder 1 is connected with discharge nozzle 5；When the pressure that 5 generations in discharge nozzle are downward, described catch 61 can move towards the direction of cylinder 1 in discharge nozzle 5, and then cylinder 1 and discharge nozzle 5 is closed, and can reach the purpose of one-way conduction。
The operation principle of above-mentioned mastic automatic extruder will be illustrated below:
During fill, lotion of toothpaste fills up in cylinder 1 first and moves all area of space that device 2 and second moves between device 3。When user presses pressure handle 40, fore-set 43 drives second to move device 3 and moves towards the bottom of cylinder 1 in cylinder 1, owing to first moves device 2 and cannot move towards the bottom of cylinder 1, therefore, mastic in former space can only move to the direction of discharge nozzle 5, to be backed down by check valve 6, and then making the lotion of toothpaste in space enter discharge nozzle 5 from check valve 6, namely lotion of toothpaste is extruded。When user unclamps pressure handle 40, effect due to flexible member 41, pressure handle 40 will then revert to original position, fore-set 43 moves driving second to move device 3 direction away from bottom in cylinder 1, now, first moves the space that device 2 and second moves between device 3 becomes big, check valve 6 is closed simultaneously, pressure in space will diminish, first moves atmospheric pressure outside device 2 more than the pressure in space, and then make described first to move device 2 will to be directed away from the direction of bottom along the inwall of cylinder 1 and move, upwards elapse by mastic, to fill up whole space。Pressing pressure handle 40 again, described mastic automatic extruder will repeat above-mentioned action。After the lotion of toothpaste in former space makes to be finished, pull down first and move device and repeatable toward fill lotion of toothpaste in space。
Above-mentioned mastic automatic extruder utilizes the principle of pressure that mastic can easily be extruded, and reusable and comparatively novel。
Refer to shown in Fig. 4, second better embodiment of mastic automatic extruder of the present invention includes cylinder 1 ', 3rd moves device 2 ', 4th moves device 3 ', press device 4 ', discharge nozzle 5 ', check valve 6 ' and lid (not shown), described 3rd moves device 2 ' and the 4th moves device 3 ' and may be contained within cylinder 1 ', described press device 4 ' moves device 3 ' with the 4th and is connected, described discharge nozzle 5 ' is connected with cylinder 1 ', described check valve 6 ' is arranged in discharge nozzle 5 ', described lid is used for being sheathed on the top of cylinder 1 ' and covers and set described press device 4 '。Specifically, the described 3rd position that device 2 ' is slidably arranged in cylinder 1 ' bottom it is moved and by the bottom end seal of cylinder 1 '；Described 4th moves device 3 ' is slidably arranged in cylinder 1 ' near the position on its top and by the end sealing of cylinder 1 ', described discharge nozzle 5 ' moves device 3 ' through the 4th and is connected with the inside of cylinder 1 ', and described check valve 6 ' seals the connectivity part being arranged in discharge nozzle 5 ' with cylinder 1 '；Described press device 4 ' is arranged at the top of cylinder 1 ' and is positioned at the 4th top moving device 3 ', and described press device 4 ' is used for driving the 4th to move device 3 ' sliding up and down along the inwall of cylinder 1 '。
In present embodiment, described cylinder 1 ' is cylindrical, and its top and bottom are not all closed。
Described 3rd moves device 2 ' includes the 3rd diaphragm seal 20 ' and isolator 22 ', and described 3rd diaphragm seal 20 ' is in round pie and along the thickness of its circumference more than the thickness in centre position, and described isolator 22 ' is identical with isolator 22 structure in the first embodiment。During installation, first the connector 220 ' of isolator 22 ' is fixed on the side of the 3rd diaphragm seal 20 ', and push in cylinder 1 ' by the 3rd diaphragm seal 20 ' is not connected with the top towards cylinder 1 ', the side of isolator 22 ' from the bottom end opening of cylinder 1 ', some legs 222 ' are opened to suitable position by the internal diameter size according to cylinder 1 ' simultaneously, so that the one end not being connected with connector 220 ' on some legs 222 ' all with the inwall Interference contact of cylinder 1 ', the bottom of cylinder 1 ' can be sealed。
Shown in Fig. 5, described press device 4 ' includes pressure handle 40 ', flexible member 41 ' and fixing plate 46 ', and the column 10 ' that one end of described pressure handle 40 ' and the tip edge of cylinder 1 ' are protruded is hinged。Described fixing plate 46 ' is for the top of sealed cylinder 1 '。Described fixing plate 46 ' is further opened with the diameter through hole slightly larger than discharge nozzle 5 ' diameter。Described discharge nozzle 5 ' is in the shape of the letter V。
Described 4th moves device 3 ' includes the 4th diaphragm seal 30 ', described 4th diaphragm seal 30 ' in round pie and along the thickness of its circumference more than the thickness in centre position, the diameter of described 4th diaphragm seal 30 ' is equal with the internal diameter on cylinder 1 ' top, being sealed on the top of described cylinder 1 '。In present embodiment, described flexible member 41 ' is butterfly spring。
One end of described discharge nozzle 5 ' is fixing with the 4th diaphragm seal 30 ' after the through hole on fixing plate 46 ' to be connected, the bending place of described discharge nozzle 5 ' is then fixedly linked with the side at the middle part of pressure handle 40 ', the part that described flexible member 41 ' is then placed on discharge nozzle 5 ' to be positioned between fixing plate 46 ' and pressure handle 40 '。The structure of described check valve 6 ' is identical with the check valve 6 in the first embodiment。
Below the operation principle of the second embodiment to above-mentioned mastic automatic extruder is illustrated:
During fill, lotion of toothpaste fills up in cylinder 1 ' the 3rd and moves device 2 ' and the 4th all area of space moving between device 3 '。When user presses pressure handle 40 ', discharge nozzle 5 ' drives the 4th to move device 3 ' bottom towards cylinder 1 ' in cylinder 1 ' and moves, owing to the 3rd moves device 2 ' and cannot move towards the bottom of cylinder 1 ', therefore, mastic in former space can only move towards the direction of discharge nozzle 5 ', to be backed down by check valve 6 ', and then making the lotion of toothpaste in space enter discharge nozzle 5 ' from check valve 6 ', namely lotion of toothpaste is extruded。When user unclamps pressure handle 40 ', effect due to flexible member 41 ', pressure handle 40 ' will then revert to original position, discharge nozzle 5 ' moves driving the 4th to move device 3 ' direction away from bottom in cylinder 1 ', now, 3rd moves the space that device 2 ' and the 4th moves between device 3 ' becomes big, check valve 6 ' is closed simultaneously, pressure in space will diminish, 3rd moves device 2 ' atmospheric pressure outward more than the pressure in space, and then make the described 3rd to move device 2 ' direction of bottom will to be directed away from along the inwall of cylinder 1 ' and move, upwards elapse by mastic, to fill up whole space。Pressing pressure handle 40 ' again, described mastic automatic extruder will repeat above-mentioned action。
Above-mentioned mastic automatic extruder utilizes the principle of pressure that mastic can easily be extruded, and reusable and comparatively novel。
Above disclosed it is only one preferred embodiment of the present invention, certainly can not limit the interest field of the present invention, the equivalent variations therefore made according to the claims in the present invention with this, still belong to the scope that the present invention contains。
Claims (5)
1. a mastic automatic extruder, including: cylinder, first move device, second move device, press device, discharge nozzle and check valve, described first moves device and second moves device and may be contained within cylinder, described press device and second moves device and is connected, described discharge nozzle is connected with cylinder, and one end that described check valve is arranged in discharge nozzle and does not connect with cylinder on discharge nozzle is opened；Described first moves device is slidably arranged in cylinder near the position of its bottom and by the bottom end seal of cylinder；Described second moves device is slidably arranged near the position on its top and by the end sealing of cylinder in cylinder, and described discharge nozzle is connected with the top of cylinder；Described press device is arranged at the top of cylinder and is positioned at the second top moving device, and described press device slides up and down along the inwall of cylinder for driving second to move device；Described first moves device includes the first diaphragm seal and isolator, described first diaphragm seal is connected with isolator, described first diaphragm seal is for by the bottom end seal of cylinder, and described isolator can only move along the inwall of cylinder towards the direction away from cylinder bottom for making the first diaphragm seal；Wherein, described cylinder is cylindrical, and its top is step-like and includes Part I and Part II, and the height of Part I is less than the height of Part II, and described Part I seals and is connected with discharge nozzle；Described press device includes pressure handle, flexible member, fore-set and fixing plate, the column that one end of described pressure handle is protruded with the top middle portion of cylinder is hinged, described fixing plate is for the Part II on sealed cylinder top, described fixing plate is further opened with the through hole greater diameter than fore-set diameter, described second moves device includes the second diaphragm seal, described second diaphragm seal is for sealing the Part II of described cylinder, one end of described fore-set is fixing with the bottom surface of pressure handle to be connected, the other end is fixing with the second diaphragm seal after the through hole on fixing plate to be connected, the part that described flexible member is placed on fore-set between fixing plate and pressure handle；On described first diaphragm seal and the second diaphragm seal, thickness along its periphery is more than the thickness in centre position。
2. mastic automatic extruder as claimed in claim 1, it is characterised in that: described isolator includes connector and some legs, and one end of described some legs is all flexibly connected with connector, the other end of described some legs and the inwall Interference contact of cylinder；Described connector is connected to the end face of the first diaphragm seal。
3. mastic automatic extruder as claimed in claim 1, it is characterised in that: described check valve includes catch and some legs, and one end of described some legs is all connected with the end face of catch, and the other end of described some legs is provided with crotch。
4. mastic automatic extruder as claimed in claim 1, it is characterised in that: described flexible member is butterfly spring。
5. mastic automatic extruder as claimed in claim 1, it is characterised in that: described mastic automatic extruder also includes lid, and described lid sets described press device for the top cover being sheathed on cylinder。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410108225.9A CN103832700B (en) | 2014-03-21 | 2014-03-21 | Mastic automatic extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410108225.9A CN103832700B (en) | 2014-03-21 | 2014-03-21 | Mastic automatic extruder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103832700A CN103832700A (en) | 2014-06-04 |
| CN103832700B true CN103832700B (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410108225.9A Expired - Fee Related CN103832700B (en) | 2014-03-21 | 2014-03-21 | Mastic automatic extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103832700B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742626B (en) * | 2016-11-11 | 2018-08-07 | 陈海军 | A kind of toothpaste tube |
| CN108670090B (en) * | 2018-04-30 | 2019-12-06 | 嘉兴厚亿纺织股份有限公司 | Toothpaste squeezing machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511068A (en) * | 1982-01-19 | 1985-04-16 | Gap Gesselschaft Fuer Auswertungen Und Patente Ag | Dispenser for paste-like products |
| GB2161222A (en) * | 1984-06-29 | 1986-01-08 | Aerosol Inventions Dev | Arrangement for adding a stripe to a dispensed pasty material |
| US4684044A (en) * | 1984-03-14 | 1987-08-04 | Realex Corporation | Viscous product dispenser having externally located, dispensed product shearing outlet valve provided with lost-motion action |
| DE3631158A1 (en) * | 1986-09-12 | 1988-03-24 | Future Patents Dev Fpd | Dispenser for pasty compositions |
| US4875604A (en) * | 1986-01-17 | 1989-10-24 | Joachim Czech | Dispenser for paste-like products |
| US4991744A (en) * | 1988-02-04 | 1991-02-12 | Colgate Palmolive Company | Dispenser for the metered delivery of pasty products |
| CN2271510Y (en) * | 1994-06-24 | 1997-12-31 | 李常明 | Double-piston storage appts |
| CN2422249Y (en) * | 2000-02-22 | 2001-03-07 | 上海中业科技有限公司 | Press type toothpaste tube |
-
2014
- 2014-03-21 CN CN201410108225.9A patent/CN103832700B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511068A (en) * | 1982-01-19 | 1985-04-16 | Gap Gesselschaft Fuer Auswertungen Und Patente Ag | Dispenser for paste-like products |
| US4684044A (en) * | 1984-03-14 | 1987-08-04 | Realex Corporation | Viscous product dispenser having externally located, dispensed product shearing outlet valve provided with lost-motion action |
| GB2161222A (en) * | 1984-06-29 | 1986-01-08 | Aerosol Inventions Dev | Arrangement for adding a stripe to a dispensed pasty material |
| US4875604A (en) * | 1986-01-17 | 1989-10-24 | Joachim Czech | Dispenser for paste-like products |
| DE3631158A1 (en) * | 1986-09-12 | 1988-03-24 | Future Patents Dev Fpd | Dispenser for pasty compositions |
| US4991744A (en) * | 1988-02-04 | 1991-02-12 | Colgate Palmolive Company | Dispenser for the metered delivery of pasty products |
| CN2271510Y (en) * | 1994-06-24 | 1997-12-31 | 李常明 | Double-piston storage appts |
| CN2422249Y (en) * | 2000-02-22 | 2001-03-07 | 上海中业科技有限公司 | Press type toothpaste tube |
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| CN103832700A (en) | 2014-06-04 |
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Granted publication date: 20160622 Termination date: 20210321 |