AU2019203402B2 - Fluid delivery system - Google Patents
Fluid delivery system Download PDFInfo
- Publication number
- AU2019203402B2 AU2019203402B2 AU2019203402A AU2019203402A AU2019203402B2 AU 2019203402 B2 AU2019203402 B2 AU 2019203402B2 AU 2019203402 A AU2019203402 A AU 2019203402A AU 2019203402 A AU2019203402 A AU 2019203402A AU 2019203402 B2 AU2019203402 B2 AU 2019203402B2
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- AU
- Australia
- Prior art keywords
- fluid
- diaphragm
- outlet
- inlet
- tube
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17596—Ink pumps, ink valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
- F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/073—Pumps having fluid drive the actuating fluid being controlled by at least one valve
- F04B43/0736—Pumps having fluid drive the actuating fluid being controlled by at least one valve with two or more pumping chambers in parallel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/18—Ink recirculation systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
A fluid delivery system is revealed. A double diaphragm pump
provided with two inlets and two outlets is mounted in the fluid delivery
5 system. An introducing pipeline is connected to one set of inlet and
outlet while a return pipeline is connected to the other set of inlet and
outlet. Thereby a pneumatic mechanism in the double diaphragm pump
drives two diaphragms therein to draw in and expel fluid in the system so
that the fluid flows in and out through the two sets of inlets and outlets.
10 Thus the pressure remains constant and the volume flow rate is uniform
during delivery and returning of the fluid. A drain-back tube provided
with a control valve is arranged between the introducing pipeline and the
return pipeline. The fluid is returned and delivered under control of the
control valve while changing fluids or cleaning pipelines of the system.
18
B
2
5 6
32
12
10
31 21
A 3
FIG.1
Description
2
5 6
32
12
10
31 21 A 3
FIG.1
Field of the Invention
The present invention relates to a fluid delivery system, especially to
a fluid delivery system in which fluid is delivered and recycled
uniformly under constant pressure and uniform volume flow rate.
Description of Related Art
Generally, fluid is pressurized by the pump to be delivered to the
desired location through pipelines. The pump is driven by an external
engine for drawing and expelling the fluid continuously. Yet most of the
engines are bulky and fuel consumption is required. Thus the engine is
suitable for outdoor use where no power is provided. For indoor use or
places easy to access to the power, the pump is usually driven by motors
or electromagnetic means.
The pump available now is only suitable for quick delivery and
liquids with lower requirements for delivery quality, unable to be applied
to machines with viscous fluids delivered at low speed such as printing
machine. An air pump is widely used for ink delivery in ink printing
machines. A diaphragm mounted in the pump is driven by the alternating air pressure for ink delivery to an ink fountain and use in printing. As shown in Fig. 5, one end of an air pump 7 is connected to an ink fountain
71 and the other end thereof is connected to an ink tube 81 of an ink
printing machine 8 while two ink fountain rollers 82 are disposed under
the ink tube 81 and the sections of the two ink fountain rollers 82 are
tangent to each other (in close contact with each other). The ink tube 81
is located just above the position where the surfaces of the two ink
fountain rollers 82 are in close contact and the two ink fountain rollers
82 are rotated from the lower to the upper in opposite directions
respectively so that ink from the ink tube 81 will not fall through a gap
between the contact surfaces of the two ink fountain rollers 82. Instead
of flowing down, the ink from the ink tube 81 flows into a trough formed
above the contact surfaces of the two ink fountain rollers 82 for being
attached to the surface of each of the rotating ink fountain rollers 82. At
the same time, redundant ink passes through two ends of the trough and
flows into an ink-collecting groove 83 set on each of the two ends of the
slot and the ink-collecting groove 83 is connected to a return tube 84 for
sending the ink back to the ink fountain 71 and recycling. The ink in the
ink-collecting groove 83 is dropped into the return tube 84. Then the ink
is returned to the ink fountain 71 by height difference defined in fluid
statics (gravity-driven flow) or capillary effect/penetration. Thus the ink
delivery in the printing machine available now has the following
shortcomings:
1. The pipe diameter of the return tube should be increased. The larger
the diameter/size, the easier the flow of viscous fluids being
delivered/returned. Thus the cost is increased.
2. The more viscous the fluid is, the slower the flow rate is. Thus the
solvent is evaporated easily and the ink is dried.
3. During the delivery process, the fluid is drawn in at a higher speed but
returned at a lower speed. Thus the delivered amount is not balanced
over time.
4. The pipelines are difficult to be cleaned. A lot of water is required for
cleaning the return tube owing to the dried ink attached to the tube wall.
Therefore it is a primary object of the present invention to provide a
fluid delivery system that includes a double diaphragm pump used for
driving two diaphragms to draw in and expel fluid alternately and then
the fluid flows in and out through two sets of inlets and outlets of the
double diaphragm pump. Thus the pressure remains constant and the
volume flow rate is uniform during the delivery and returning of the
fluid. Therefore the fluid is delivered smoothly and uniformly.
It is another object of the present invention to provide a fluid
delivery system in which only a little amount of water is required to clean pipelines thereof owing to constant pressure and uniform flow rate during delivery. Thus water used for cleaning is saved. Moreover, quick cleaning and replacement is achieved by a drain-back tube.
It is a further object of the present invention to provide a fluid
delivery system that features on no evaporation, no leakage and stable
fluid supply during fluid delivery process.
The structure and the technical means adopted by the present
invention to achieve the above and other objects can be best understood
by referring to the following detailed description of the preferred
embodiments and the accompanying drawings, wherein:
Fig. 1 is a schematic drawing showing structure (closed) of an
embodiment according of the present invention;
Fig. 2 is a schematic drawing showing an enlarged view of a pump in
action of an embodiment according of the present invention;
Fig. 3 is another schematic drawing showing an enlarged view of a pump
in action of an embodiment according of the present invention;
Fig. 4 is a schematic drawing showing structure (non-hermetic) of
another embodiment according of the present invention;
Fig. 5 is a schematic drawing showing structure of a prior art.
Refer to Fig. 1, a schematic drawing showing structure of a fluid
delivery system of the present invention is revealed. The fluid in the
system is delivered by the following steps.
(a) providing a fluid delivery system. A fluid delivery system A is used
for supplying fluid to a machine B and composed of an introducing
pipeline 2 connected to a fluid storage unit 4 for delivering fluid in the
fluid storage unit 4 to a fluid supply portion 5. The fluid supply portion 5
is connected to a return pipeline 3 for returning the fluid back to the fluid
storage unit 4.
(b) providing a double diaphragm pump. The double diaphragm pump 1
is mounted in the system A and the introducing pipeline 2 is connected
to an action path of a first diaphragm 11 thereof while the return pipeline
3 is connected to an action path of a second diaphragm 12 thereof;
(c) applying a pressure to the first diaphragm. The double diaphragm
pump 1 applies a pressure to the first diaphragm 11 so that fluid in the
fluid storage unit 4 is passed through the introducing pipeline 2 and the
action path of the first diaphragm 11, and delivered into the fluid supply
portion 5 for being used by the machine B.
(d) applying a pressure to the second diaphragm. The double diaphragm
pump 1 applies a pressure to the second diaphragm 12 so that fluid in the fluid supply portion 5 is passed through the return pipeline 3 and the action path of the second diaphragm 12, and returned to the fluid storage unit 4.
The above fluid delivery steps are carried out by a liquid delivery
system A according to the present invention and the liquid delivery
system A includes a double diaphragm pump 1, an introducing pipeline
2, a return pipeline 3, a fluid storage unit 4, and a fluid supply portion 5.
As shown in Fig. 2, the double diaphragm pump 1 consists of a
pneumatic mechanism 10 mounted therein, a first diaphragm 11, a
second diaphragm 12, a first inlet 13, a first outlet 14, a first fluid
chamber 15, a second inlet 16, a second outlet 17, a second fluid
chamber 18 and a plurality of check valves 19. The first diaphragm 11
and the second diaphragm 12 are disposed on the pneumatic mechanism
10 that is provided with a lever 102 and an air-intake portion 101 that
brings air therein for driving the first and the second diaphragms 11, 12
to move and act. The first inlet 13 and the first outlet 14 are arranged at
one end of the pneumatic mechanism 10 with the first diaphragm 11
while the first fluid chamber 15 is formed between the first diaphragm
11, the first inlet 13 and the first outlet 14. The second inlet 16 and the
second outlet 17 are disposed on another end of the pneumatic
mechanism 10 with the second diaphragm 12 while the second fluid chamber 18 is formed between the second diaphragm 12, the second inlet 16 and the second outlet 17. Each inlet and each outlet are provided with one of the check valves 19 correspondingly.
The introducing pipeline 2 is composed of a first guiding tube 21
and a second guiding tube 22. One end of the first guiding tube 21 and
one end of the second guiding tube 22 are connected to the first inlet 13
and the first outlet 14 of the double diaphragm pump 1 respectively.
The return pipeline 3 includes a first return tube 31 and a second
return tube 32, being connected to the second inlet 16 and the second
outlet 17 of the double diaphragm pump 1 respectively. The pipe
diameter of the introducing pipeline 2 is the same as that of the return
pipeline 3.
The fluid storage unit 4 used for supplying fluid required and
receiving fluid returned is connected to the first guiding tube 21 and the
second return tube 32.
The fluid supply portion 5 is used for supplying fluid required to the
machine B and connected to the second guiding tube 22 and the first
return tube 31.
While in use, the present invention can be applied to various
machines used for transporting viscous liquids (such as oil, ink, liquid
glucose, slurry, etc.). The above system A is used in combination with
the delivery steps. Refer to Fig. 1 and Fig. 2, this embodiment is used in
fluid (ink) transportation in the printing machine.
Refer to Fig. 1-3, the machine B receiving fluid from the system A
in this embodiment is a printing machine and the system A is responsible
for ink delivery in the printing machine. That means ink supply in the
printing machine is performed by the fluid delivery system A. The
system in the printing machine can be a closed fluid delivery system, a
doctor blade chamber system, a conventional liquid delivery system, etc.
As shown in Fig. 1, the present system is applied to a closed fluid
delivery system and composed of a fluid storage unit 4 filled with ink
therein, an introducing pipeline 2 for sending fluid, a return pipeline 3
for recycling fluid, a double diaphragm pump 1 that connects the
introducing pipeline 2 and the return pipeline 3, and a fluid supply
portion 5 for supplying fluid to a machine B. Thus a closed delivery path
is formed. The introducing pipeline 2 and the return pipeline 3 have the
same pipe diameter. Then run the steps (a) and (b): providing a double
diaphragm pump 1 with two sets of inlets and outlets. A pneumatic
mechanism 10 is mounted in the double diaphragm pump 1 and provided
with a first diaphragm 11 and a second diaphragm 12 on two ends thereof, respectively. Just like the general pump, the pneumatic mechanism 10 is provided with an air-intake portion 101 that brings air for driving the first and the second diaphragms 11, 12 to move and act. A first inlet 13 and a first outlet 14 are arranged at one end of the pneumatic mechanism 10 with the first diaphragm 11 and a first fluid chamber 15 is formed between the first diaphragm 11, the first inlet 13 and the first outlet 14 (that's an action path of the first diaphragm 11).
The end of the pneumatic mechanism 10 with the second diaphragm 12
is provided with a second inlet 16 and a second outlet 17 while a second
fluid chamber 18 is formed between the second diaphragm 12, the
second inlet 16 and the second outlet 17 (that's an action path of the
second diaphragm 12). Each of the inlets as well as the outlets is
provided with a check valve 19. The first inlet 13 and the first outlet 14
are connected to the introducing pipeline 2 composed of a first guiding
tube 21 and a second guiding tube 22. One end of the first guiding tube
21 is connected to the first inlet 13 while the other end thereof is
connected to a fluid storage unit 4 filled with ink therein. One end of the
second guiding tube 22 is connected to the first outlet 14 and the other
end thereof is connected to a fluid supply portion 5 that is corresponding
to an anilox roller of a printing machine (a machine). A return pipeline 3
connects the fluid supply portion 5 with the double diaphragm pump 1
and the fluid storage unit 4. The return pipeline 3 includes a first return
tube 31 and a second return tube 32. One end of the first return tube 31 is connected to the fluid supply portion 5 while the other end thereof is connected to the second inlet 16. One end of the second return tube 32 is connected to the second outlet 17 and the other end thereof is connected to the fluid storage unit 4.
The fluid supply portion 5 not only provides ink required to the
anilox roller of the printing machine but also removes redundant ink
attached to the anilox roller. Then the ink removed is turned back to the
fluid storage unit 4 by the return pipeline 3. Take the step (c) when the
pneumatic mechanism 10 of the double diaphragm pump 1 drives the
first diaphragm 11 and the second diaphragm 12 to act. The lever 102
drives the first diaphragm 11 to move toward the first fluid chamber 15
and cause ink in the first fluid chamber 15 moving toward the first outlet
14 and pushing the check valve 19. Thus the ink is flowing into the
second guiding tube 22 to be delivered to the fluid supply portion 5. The
ink being pushed by the first diaphragm 11 makes the check valve 19 of
the first inlet 13 close. At the same time, the second diaphragm 12 is
moved away from the second fluid chamber 18 owing to the movement
of the first diaphragm 11 toward the first fluid chamber 15 by the lever
102 so that a negative pressure is created in the second fluid chamber 18
and the check valve 19 of the second outlet 17 is drawn back to close the
second outlet 17. At the same time, the check valve 19 of the second inlet 16 is pushed away from the hole, allowing ink in the first return tube 31 (intend to be recycled) to flow into the second fluid chamber 18.
Next run the step (d). Refer to Fig. 3, ink in the second fluid
chamber 18 is moved toward the second outlet 17 to push the check
valve 19 of the second outlet 17 when the lever 102 drives the second
diaphragm 12 to move toward the second fluid chamber 18. Thus the ink
is flowing into the second return tube 32 to be delivered to the fluid
storage unit 4. The ink being squeezed pushes the check valve 19 of the
second inlet 16 to close the second inlet 16 for blocking ink in the first
return tube 31 to flow in. At the same time, the first diaphragm 11 is
moved away from the first fluid chamber 15 owing to the movement of
the second diaphragm 12 toward the second fluid chamber 18 by the
lever 102 so that a negative pressure is created in the first fluid chamber
15 and the check valve 19 of the first outlet 14 is drawn back to close the
first outlet 14. Simultaneously the check valve 19 of the first inlet 13 is
pushed off to open the first inlet 13, causing ink in the first guiding tube
21 from the fluid storage unit 4 to flow into the first fluid chamber 15.
By alternately drawing and expelling mentioned above, the pressure
remains constant and the volume flow rate (the volume of fluid delivered
per unit time) is uniform during the delivery and returning of the
ink/fluid. Thus the fluid is delivered uniformly.
Refer to Fig. 1, Fig. 2 and Fig. 3, when the printing machine is
stopped for changing colors or cleaning, fluid in the system A should be
cleaned out. A drain-back tube 6 is arranged between the second guiding
tube 22 and the second return tube 32 and provided with a control valve
61. For changing colors or cleaning, firstly the first guiding tube 21 is
released from the fluid storage unit 4. Then the control valve 61 is open
so that the second guiding tube 22 and the second return tube 32
communicate with each other. Thus ink in the second guiding tube 22
flows into the second return tube 32 through the drain-back tube 6. Next
ink originally inside the system pipelines is pushed out by the double
diaphragm pump 1 and returned to the fluid storage unit 4, without the
waste of ink. Then fluid in the fluid storage unit 4 is replaced by cleaning
solution or ink in different colors. Lastly the system A is turned on after
the control valve 61 being closed and the fluid is delivered into the
system pipelines by the alternately drawing and expelling mentioned
above for cleaning pipelines or color changing during printing.
Furthermore, as shown in Fig. 4, the present system is applied to a
non-hermetic fluid delivery system. The system A is composed of a fluid
storage unit 4 filled with ink therein, an introducing pipeline 2 for
delivering fluid, a return pipeline 3 for recycling fluid, a double
diaphragm pump 1 that connects the introducing pipeline 2 and the
return pipeline 3, and a fluid supply portion 5 for supplying fluid to a machine B. Thus a non-hermetic fluid delivery system is formed. The steps in the operation process are the same as those mentioned above.
The present invention has the following advantages compared with
the structure available now.
1. The pneumatic mechanism in the double diaphragm pump draws in
and expels the fluid alternately so that the fluid flow in and out through
the two sets of inlets and outlets. Thus the pressure remains constant and
the volume flow rate is uniform during the delivery and returning of the
fluid. Therefore the fluid is delivered smoothly and uniformly.
2. The pipe diameter of the introducing pipe and that of the return
pipeline are the same so that the cost-saving is achieved.
3. Owing to constant pressure and uniform flow rate during delivery,
only a little amount of water is required to clean the pipelines of the
system so that the water is saved.
4. No matter applied to the closed fluid delivery system or the general
fluid delivery system, the present system features on no evaporation, no
leakage and stable fluid supply.
5. By arrangement of the drain-back tube, not only fluid in the system
will not be wasted during cleaning or liquid changing, quick cleaning
and liquid changing can also be achieved.
Additional advantages and modifications will readily occur to those
skilled in the art. Therefore, the invention in its broader aspects is not
limited to the specific details, and representative devices shown and
described herein. Accordingly, various modifications may be made
without departing from the spirit or scope of the general inventive
concept as defined by the appended claims and their equivalent.
Claims (3)
1. A fluid delivery system used for supplying fluid to a machine
comprising:
a double diaphragm pump that includes a pneumatic mechanism
mounted therein and provided with a first diaphragm, a second
diaphragm, and an air-intake portion that brings air therein for
driving the first and the second diaphragms to move and act
through action paths, a first inlet and a first outlet that are
disposed on one end of the pneumatic mechanism with the first
diaphragm, a first fluid chamber formed between the first
diaphragm, the first inlet and the first outlet, a second inlet and a
second outlet that are disposed on another end of the pneumatic
mechanism with the second diaphragm, a second fluid chamber
formed between the second diaphragm, the second inlet and the
second outlet, a plurality of check valves each of which disposed
on the first inlet, the first outlet, the second inlet and the second
outlet correspondingly;
an introducing pipeline composed of a first guiding tube with one
end thereof connected to the first inlet of the double diaphragm
pump, and a second guiding tube with one end thereof connected
to the first outlet of the double diaphragm pump;
a return pipeline that includes a first return tube connected to the
second inlet of the double diaphragm pump, and a second return tube connected to the second outlet of the double diaphragm pump; a fluid storage unit used for supplying fluid required and receiving fluid returned and connected to the first guiding tube and the second return tube; a fluid supply portion that supplies fluid required to the machine and connected to the second guiding tube and the first return tube; and a drain-back tube arranged between the second guiding tube and the second return tube and provided with a control valve; wherein fluid in the fluid storage unit is passed through the introducing pipeline and the action path of the first diaphragm and delivered into the fluid supply portion to be used by the machine when the double diaphragm pump applies a pressure to the first diaphragm; fluid in the fluid supply portion is passed through the return pipeline and the action path of the second diaphragm, and returned to the fluid storage unit when the double diaphragm pump applies a pressure to the second diaphragm; fluid in the introducing pipeline is sent back to the return pipeline and then returned to the fluid storage unit when the second guiding tube and the second return tube communicate with each other by the drain-back tube.
2. The fluid delivery system as claimed in claim 1, wherein the
introducing pipeline and the return pipeline have the same pipe
diameter.
3. The fluid delivery system as claimed in claim 1, wherein the fluid
delivery system is a closed fluid delivery system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2019203402A AU2019203402B2 (en) | 2019-05-15 | 2019-05-15 | Fluid delivery system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2019203402A AU2019203402B2 (en) | 2019-05-15 | 2019-05-15 | Fluid delivery system |
Publications (2)
Publication Number | Publication Date |
---|---|
AU2019203402A1 AU2019203402A1 (en) | 2020-12-03 |
AU2019203402B2 true AU2019203402B2 (en) | 2021-01-21 |
Family
ID=73551700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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AU2019203402A Active AU2019203402B2 (en) | 2019-05-15 | 2019-05-15 | Fluid delivery system |
Country Status (1)
Country | Link |
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AU (1) | AU2019203402B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4643124A (en) * | 1985-05-13 | 1987-02-17 | Ryco Graphic Manufacturing, Inc. | Liquid coating supply system for a printing press blanket coater |
US20060114303A1 (en) * | 2002-06-10 | 2006-06-01 | Lutz Telljohann | Method and device for supplying printing ink to and carrying it off from a doctor blade device of the inking system of a rotary printing press and/or for cleaning the doctor blade device |
-
2019
- 2019-05-15 AU AU2019203402A patent/AU2019203402B2/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4643124A (en) * | 1985-05-13 | 1987-02-17 | Ryco Graphic Manufacturing, Inc. | Liquid coating supply system for a printing press blanket coater |
US20060114303A1 (en) * | 2002-06-10 | 2006-06-01 | Lutz Telljohann | Method and device for supplying printing ink to and carrying it off from a doctor blade device of the inking system of a rotary printing press and/or for cleaning the doctor blade device |
Also Published As
Publication number | Publication date |
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AU2019203402A1 (en) | 2020-12-03 |
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