CA2074651A1 - Vacuum press - Google Patents
Vacuum pressInfo
- Publication number
- CA2074651A1 CA2074651A1 CA002074651A CA2074651A CA2074651A1 CA 2074651 A1 CA2074651 A1 CA 2074651A1 CA 002074651 A CA002074651 A CA 002074651A CA 2074651 A CA2074651 A CA 2074651A CA 2074651 A1 CA2074651 A1 CA 2074651A1
- Authority
- CA
- Canada
- Prior art keywords
- board
- plates
- vacuum
- plate
- whilst
- 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.)
- Abandoned
Links
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 abstract description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
- B32B37/1018—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure using only vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
- B30B5/02—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
VACUUM PRESS
ABSTRACT OF THE DISCLOSURE
A vacuum press for use in gluing posters, photographs and like materials to flat boards, is disclosed. The vacuum press comprises a flat top plate and a flat bottom plate held in spaced apart relationship by a compressible seal. The compressible seal is dimensioned so as to provide a chamber within the plates.
This chamber is adapted to hold a board, which has at least one flat surface, and an outlet for the chamber is adapted for connection to a means for drawing a vacuum in the chamber. The plates are drawn together in a manner such that one of the plates exerts a pressing action on the at least one flat surface of the board whilst the seal is compressed.
b:HSS/6121-667/abstract/July 21.92/sm W:132
ABSTRACT OF THE DISCLOSURE
A vacuum press for use in gluing posters, photographs and like materials to flat boards, is disclosed. The vacuum press comprises a flat top plate and a flat bottom plate held in spaced apart relationship by a compressible seal. The compressible seal is dimensioned so as to provide a chamber within the plates.
This chamber is adapted to hold a board, which has at least one flat surface, and an outlet for the chamber is adapted for connection to a means for drawing a vacuum in the chamber. The plates are drawn together in a manner such that one of the plates exerts a pressing action on the at least one flat surface of the board whilst the seal is compressed.
b:HSS/6121-667/abstract/July 21.92/sm W:132
Description
2~7~
V~lln~ ~'~S~
FIELD OF ~E INVENTION:
The present invention relates to vacuum presses, in particular to new design vacuum presses for use in gluing posters, photographs and like materials to Hat boards.
DESCRIPTION OF THE DRAWINGS:
Figure la and Figure lb show prior art vacuum presses; Figure la is a conventional bag type press, and Figure lb is a conventional frame type press;
Figure 2 is a sectional view of a vacuum press in keeping with the present invention;
Figure 3 is a plan view o~ a vacuum press of the present invention;
Figures 4a and ~b are progressive sectional views of a vacuum press of the present invention; and Figure 5 is a sectional view of an alternative vacuum press of the present invention.
BACKGROUWD OF THE TNVENTION:
Present designs for vacuum presses are either of the bag type or the frame t~pe. For better understanding, these designs will now be described with reference to Fig. la, which LS a cross-sectional view of the bag type press; and Fig. lb, which is a cross-sectional view of the frame type press.
As shown in Fi~. la, the bag type vacuum press 10 comprises a flexible bag 11, a ribbed mat 14 on a support 13 and a vacuum outlet 15.
Flex~ble bag 11 is sealable to support 13.
- . : - , , . . - , . : :. - :: . -- : .
.: . . - . .
.. . .. .
... .
-- .- . . . ~: .
, ~ , ^~ 2~fi~
In use, a board 12 to be pressed is placed on mat 14 and bag 11 sealed to support 13. As air is drawn out of the bag through the operation of a pump connected to vacuum outlet 15, the bag is drawn around and presses onto board 12. The forces acting on the board are arrowed.
As is shown in Figure lb, the frame type vacuum press 20 compr~ses a rigid top plate 21 and a flexible bottom 23 overlayed by a ribbed mat 24.
The flexible bottom 23 is sealable to top plate 21 whilst a vacuum outlet 25 is provided in the flexible bottom 23 to facilitate the removal of air held in the spaca between plate 21 and bottom 23.
In use, the board 22 to be pressed is placed between plate 21 and bottom 23. As air is drawn out of the space between plate 21 and bottom ~3 through the operation of a pump connected to outlet 25, the bottom 23 is drawn towards plate 21 thereby pressing the board thereto. The forces acting on the boar~ are arrowed.
Using both press types, a poster, photograph or other laminar material may be readily adhered to the surface of a board by virtue of the even application of pressure either by contact with the bag of the bag type or the rigid plate in the frame type.
Both the bag and frame type vacuum presses are not, however, useful in conjunction with thick boards, as the flexible portions thereof hav0 to wrap around the corners of the board. With thick boards, this involves substantial stretching of the sides. In addition, neither the bag nor the frame type of vacuum press is satisfactory for use with boards that are relatively sof~, such as foamboards. In this case when the flexible portion wraps around the corners of the board, the corners are damaged.
.. .... . . . . . . . . .
-. : - .
: ', :
: . . ,, , . . -,, .
- .. ,~
. . ' - , . '. .
2 ~
Finally, the bag type and the frame type of vacuum presses cannot be used to simultaneously adhere laminar materials to both the upper and lower surfaces of a board.
SUMMARY OF THE INVENTION:
The present inventor has recognized these deficiencies in the prior art vacuum presses and with the present invention seeks to prov~de a vacuum press in which:
- both sides of the board can be pressed at the same time;
- very thick boards can be accommodated; and - soft boards can be pressed with high pressure without damage thereto.
Accordingly, in a first aspect, the present invention consists in a vacuum press comprising a flat top plate and a flat bottom plate held in spaced apart relationship by a compressible seal which is dirnensioned so as to provide within said plates a chamber adapted to hold a board having at least one flat surface, and an outlet for said chamber adapted for connection to a means for drawing a vacuum in said chamber whereby said plates are drawn together in a manner such that one of sa~d plates exerts a pressing action on the at least one flat surface of the board whilst said seal is compressed.
In a second aspect, the present invention further consists in a method for adhering a laminar material to a board using the vacuum press of this invention.
. . .-, . :.. . :
,.
~- -.
. . : ~ ....... . .
.: ' :. :, . ' ' ' : . ' . . . , , ,: .
. . : . . :,. .
, 2 ~
DE S CR I PT I ON OF _THE I NV ENT I ON
In order to better understand the nature of the invention, an embodiment of the invention and its operation will now be described with reference to the accompanying drawing in which:
Fig. 2, 4a, 4b and 5 are sectional views; and Fig. 3 is a plan view of a vacuum press (top plate removed) of the invention.
The vacuum press 30 comprises a flat top plate 31, a flat bottom plate 33 and a compressible seal 32 that serves to maintain the plates in spaced apart relationship. Each of the plates 31, 33 are rectangular in shape with the compressible seal 32 being disposed around the periphery of bottom plate 33. The seal may be formed, for example, from rubber.
In proximity to the seal 32 and formed in bottom plate 33 is a nozzle 36 for connection to a vacuum pump. This nozzle provides an outlet to the chamber 37 formed by the plates 31, 33 and seal 32. Whilst one of the plates 31, 33 must be rigid under vacuum, preferably the other plate is able to bow under vacuum. This enables the press to withstand very high vacuums without the necessity of having to construct plates to withstand the forces involved. In this case, flatness of the press will be maintained by the integrity of the stronger plate.
Desirably the bottom plate 33 is formed from steel or other suitable material so as to be as rigid as possible. The top plate 31 rnay then be formed from aluminum or synthetic plastics material so as to permit bowing thereof when under high vacuum. Although not shown in the drawings, the plates 31, 33 are hingedly connected and are provided with a set of gas springs to assist in lifting the top plate 3]. in operation.
:, . : . , ,, ~ ... . . .
. .
- , ~7~
As is shown in Fi~s. 4a and ~b, during operation a board 34 is placed in chamber 37. The board will bear a laminar material and adhesive for fixing the material thereto. In Fig. 4a, the press is shown before vacuum is applied and it w;ll be seen that top plate 31 is spaced apart from board 34.
In Fig. 4b, the press is shown with vacuum drawn through nozzle 36.
The board 34 is held compressed between plates 31 and 33 whilst seal 32 is compressed to the same thickness as the board.
It will be evident that the maximum thickness of board that may be accommodated by the press will be governed by the thickness of seal 32. If it is desired to utilize a board of greater thickness, a spacer disposed around the seal may be used.
In Fig. 5, an embodiment is shown in which a spacer 35 is used to accommodate a board 34 of greater thickness than seal 32. The operation of the press will be the same as previously described.
Whilst in the drawings the board 34 is shown as occupying substantially all of the area of the chamber 37 available, boards having smaller areas may be accommodated. In these circumstances, it may be necessary to position off-cuts oE board in the void area of the chamber around the board to be pressed to minimize bowing of the less rigid plate over the void area.
Whilst this invention has been described with reference to certain and preferred embodiments, the person skilled in this art will read;l y appreciate that numerous variations and modifications may be made to this invention without departing from the spirit or scope thereof.
b:~lS516121-667!specific17u1y 21.921sm ~1276 ', : ': ' . ;
- .
... . , :
., , - . - ' ~ ,
V~lln~ ~'~S~
FIELD OF ~E INVENTION:
The present invention relates to vacuum presses, in particular to new design vacuum presses for use in gluing posters, photographs and like materials to Hat boards.
DESCRIPTION OF THE DRAWINGS:
Figure la and Figure lb show prior art vacuum presses; Figure la is a conventional bag type press, and Figure lb is a conventional frame type press;
Figure 2 is a sectional view of a vacuum press in keeping with the present invention;
Figure 3 is a plan view o~ a vacuum press of the present invention;
Figures 4a and ~b are progressive sectional views of a vacuum press of the present invention; and Figure 5 is a sectional view of an alternative vacuum press of the present invention.
BACKGROUWD OF THE TNVENTION:
Present designs for vacuum presses are either of the bag type or the frame t~pe. For better understanding, these designs will now be described with reference to Fig. la, which LS a cross-sectional view of the bag type press; and Fig. lb, which is a cross-sectional view of the frame type press.
As shown in Fi~. la, the bag type vacuum press 10 comprises a flexible bag 11, a ribbed mat 14 on a support 13 and a vacuum outlet 15.
Flex~ble bag 11 is sealable to support 13.
- . : - , , . . - , . : :. - :: . -- : .
.: . . - . .
.. . .. .
... .
-- .- . . . ~: .
, ~ , ^~ 2~fi~
In use, a board 12 to be pressed is placed on mat 14 and bag 11 sealed to support 13. As air is drawn out of the bag through the operation of a pump connected to vacuum outlet 15, the bag is drawn around and presses onto board 12. The forces acting on the board are arrowed.
As is shown in Figure lb, the frame type vacuum press 20 compr~ses a rigid top plate 21 and a flexible bottom 23 overlayed by a ribbed mat 24.
The flexible bottom 23 is sealable to top plate 21 whilst a vacuum outlet 25 is provided in the flexible bottom 23 to facilitate the removal of air held in the spaca between plate 21 and bottom 23.
In use, the board 22 to be pressed is placed between plate 21 and bottom 23. As air is drawn out of the space between plate 21 and bottom ~3 through the operation of a pump connected to outlet 25, the bottom 23 is drawn towards plate 21 thereby pressing the board thereto. The forces acting on the boar~ are arrowed.
Using both press types, a poster, photograph or other laminar material may be readily adhered to the surface of a board by virtue of the even application of pressure either by contact with the bag of the bag type or the rigid plate in the frame type.
Both the bag and frame type vacuum presses are not, however, useful in conjunction with thick boards, as the flexible portions thereof hav0 to wrap around the corners of the board. With thick boards, this involves substantial stretching of the sides. In addition, neither the bag nor the frame type of vacuum press is satisfactory for use with boards that are relatively sof~, such as foamboards. In this case when the flexible portion wraps around the corners of the board, the corners are damaged.
.. .... . . . . . . . . .
-. : - .
: ', :
: . . ,, , . . -,, .
- .. ,~
. . ' - , . '. .
2 ~
Finally, the bag type and the frame type of vacuum presses cannot be used to simultaneously adhere laminar materials to both the upper and lower surfaces of a board.
SUMMARY OF THE INVENTION:
The present inventor has recognized these deficiencies in the prior art vacuum presses and with the present invention seeks to prov~de a vacuum press in which:
- both sides of the board can be pressed at the same time;
- very thick boards can be accommodated; and - soft boards can be pressed with high pressure without damage thereto.
Accordingly, in a first aspect, the present invention consists in a vacuum press comprising a flat top plate and a flat bottom plate held in spaced apart relationship by a compressible seal which is dirnensioned so as to provide within said plates a chamber adapted to hold a board having at least one flat surface, and an outlet for said chamber adapted for connection to a means for drawing a vacuum in said chamber whereby said plates are drawn together in a manner such that one of sa~d plates exerts a pressing action on the at least one flat surface of the board whilst said seal is compressed.
In a second aspect, the present invention further consists in a method for adhering a laminar material to a board using the vacuum press of this invention.
. . .-, . :.. . :
,.
~- -.
. . : ~ ....... . .
.: ' :. :, . ' ' ' : . ' . . . , , ,: .
. . : . . :,. .
, 2 ~
DE S CR I PT I ON OF _THE I NV ENT I ON
In order to better understand the nature of the invention, an embodiment of the invention and its operation will now be described with reference to the accompanying drawing in which:
Fig. 2, 4a, 4b and 5 are sectional views; and Fig. 3 is a plan view of a vacuum press (top plate removed) of the invention.
The vacuum press 30 comprises a flat top plate 31, a flat bottom plate 33 and a compressible seal 32 that serves to maintain the plates in spaced apart relationship. Each of the plates 31, 33 are rectangular in shape with the compressible seal 32 being disposed around the periphery of bottom plate 33. The seal may be formed, for example, from rubber.
In proximity to the seal 32 and formed in bottom plate 33 is a nozzle 36 for connection to a vacuum pump. This nozzle provides an outlet to the chamber 37 formed by the plates 31, 33 and seal 32. Whilst one of the plates 31, 33 must be rigid under vacuum, preferably the other plate is able to bow under vacuum. This enables the press to withstand very high vacuums without the necessity of having to construct plates to withstand the forces involved. In this case, flatness of the press will be maintained by the integrity of the stronger plate.
Desirably the bottom plate 33 is formed from steel or other suitable material so as to be as rigid as possible. The top plate 31 rnay then be formed from aluminum or synthetic plastics material so as to permit bowing thereof when under high vacuum. Although not shown in the drawings, the plates 31, 33 are hingedly connected and are provided with a set of gas springs to assist in lifting the top plate 3]. in operation.
:, . : . , ,, ~ ... . . .
. .
- , ~7~
As is shown in Fi~s. 4a and ~b, during operation a board 34 is placed in chamber 37. The board will bear a laminar material and adhesive for fixing the material thereto. In Fig. 4a, the press is shown before vacuum is applied and it w;ll be seen that top plate 31 is spaced apart from board 34.
In Fig. 4b, the press is shown with vacuum drawn through nozzle 36.
The board 34 is held compressed between plates 31 and 33 whilst seal 32 is compressed to the same thickness as the board.
It will be evident that the maximum thickness of board that may be accommodated by the press will be governed by the thickness of seal 32. If it is desired to utilize a board of greater thickness, a spacer disposed around the seal may be used.
In Fig. 5, an embodiment is shown in which a spacer 35 is used to accommodate a board 34 of greater thickness than seal 32. The operation of the press will be the same as previously described.
Whilst in the drawings the board 34 is shown as occupying substantially all of the area of the chamber 37 available, boards having smaller areas may be accommodated. In these circumstances, it may be necessary to position off-cuts oE board in the void area of the chamber around the board to be pressed to minimize bowing of the less rigid plate over the void area.
Whilst this invention has been described with reference to certain and preferred embodiments, the person skilled in this art will read;l y appreciate that numerous variations and modifications may be made to this invention without departing from the spirit or scope thereof.
b:~lS516121-667!specific17u1y 21.921sm ~1276 ', : ': ' . ;
- .
... . , :
., , - . - ' ~ ,
Claims (14)
1. A vacuum press comprising a flat top plate and a flat bottom plate held in spaced apart relationship by a compressible seal which is dimensioned so as to provide within said plates a chamber adapted to hold a board having at least one flat surface, and an outlet for said chamber adapted for connection to a means for drawing a vacuum in said chamber, whereby said plates are drawn together in a manner such that one of said plates exerts a pressing action on the at least one flat surface of the board whilst said seal is compressed.
2. A vacuum press as claimed in claim 1 wherein one of said plates is rigid whilst the other plate is less rigid such that, when a high vacuum is drawn, the less rigid plate will bow whilst the other plate retains its shape.
3. A vacuum press as claimed in claim 1, wherein each of the plates exerts a pressing action on two opposing flat surfaces of a board.
4. A vacuum press as claimed in claim 2, wherein each of the plates exerts a pressing action on two opposing flat surfaces of a board.
5. A vacuum press as claimed in claim 1, wherein the compressible seal extends around the periphery of one of the plates.
6. A vacuum press as claimed in claim 1, wherein the outlet is positioned in the bottom plate in proximity to the seal.
7. A vacuum press as claimed in claim 1, wherein the top and bottom plates are hingedly connected.
8. A vacuum press as claimed in claim 1, wherein the board is a soft board.
9. A method for adhering a laminar material to a flat surface of a board comprising providing either the laminar material or said surface with an adhesive, placing said laminar material in contact with the board and pressing the laminar material to said board; wherein said vacuum press comprises a flat top plate and a flat bottom plate held in spaced apart relationship by a compressible seal which is dimensioned so as to provide within said plates a chamber adapted to hold a board having at least one flat surface, and an outlet for said chamber adapted for connection to a means for drawing a vacuum in said chamber, whereby said plates are drawn together in a manner such that one of said plates exerts a pressing action on the at least one flat surface of the board whilst said seal is compressed.
10. The method of claim 9, wherein one of said plates is rigid whilst the other plate is less rigid so that, when a high vacuum is drawn, the less rigid plate will bow whilst the other plate retains its shape.
11. A method for adhering two sheets of laminar material respectively to two opposing flat surfaces of a board, comprising providing either the sheets of laminar material or the surfaces of the board with an adhesive, placing a sheet of the laminar material in contact with one of the surfaces of the board and pressing said sheets of laminar material to said board; wherein said vacuum press comprises a flat top plate and a flat bottom plate held in spaced apart relationship by a compressible seal which is dimensioned so as to provide within said plates a chamber adapted to hold a board having at least one flat surface, and an outlet for said chamber adapted for connection to a means for drawing a vacuum in said chamber, whereby said plates are drawn together in a manner such that one of said plates exerts a pressing action on the at least one flat surface of the board whilst said seal is compressed.
12. The method of claim 11, wherein one of said plates is rigid whilst the other plate is less rigid so that, when a high vacuum is drawn, the less rigid plate will bow whilst the other plate retains its shape.
13. The method of claim 9, wherein the board is a soft board.
14. The method of claim 11, wherein the board is a soft board.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU69943/91A AU629727B2 (en) | 1990-01-24 | 1991-01-24 | Vacuum press |
| CA002074651A CA2074651A1 (en) | 1990-01-24 | 1992-07-24 | Vacuum press |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPJ831690 | 1990-01-24 | ||
| AU69943/91A AU629727B2 (en) | 1990-01-24 | 1991-01-24 | Vacuum press |
| CA002074651A CA2074651A1 (en) | 1990-01-24 | 1992-07-24 | Vacuum press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2074651A1 true CA2074651A1 (en) | 1994-01-25 |
Family
ID=27155825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002074651A Abandoned CA2074651A1 (en) | 1990-01-24 | 1992-07-24 | Vacuum press |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU629727B2 (en) |
| CA (1) | CA2074651A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2481969A (en) * | 2010-07-05 | 2012-01-18 | Vestas Wind Sys As | Sealing elements for use in fabrication of composite structures |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU638604B2 (en) * | 1990-09-17 | 1993-07-01 | Architectural Custom Moulding Pty. Limited | Cornice |
| US6146578A (en) * | 1997-10-09 | 2000-11-14 | Lear Corporation | Method for molding headliners |
| WO2018178874A1 (en) * | 2017-03-27 | 2018-10-04 | Sabic Global Technologies B.V. | Vacuum-assisted tools for use in pressing stacks of one or more laminae and related methods |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950210A (en) * | 1973-04-10 | 1976-04-13 | Seal Incorporated | Vacuum press |
-
1991
- 1991-01-24 AU AU69943/91A patent/AU629727B2/en not_active Ceased
-
1992
- 1992-07-24 CA CA002074651A patent/CA2074651A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2481969A (en) * | 2010-07-05 | 2012-01-18 | Vestas Wind Sys As | Sealing elements for use in fabrication of composite structures |
Also Published As
| Publication number | Publication date |
|---|---|
| AU6994391A (en) | 1991-07-25 |
| AU629727B2 (en) | 1992-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1380829A (en) | Vacuum press and method of bonding | |
| ATE314181T1 (en) | PERFORATED SURFACE THAT CAN BE PRESSURED FOR HOLDING SHEET-SHAPED MATERIAL | |
| JP3676845B2 (en) | Depressurized stencil printing method and apparatus with simple structure | |
| JPH0531743A (en) | Vacuum press lamination molding method and apparatus | |
| CA2074651A1 (en) | Vacuum press | |
| EP0231067A2 (en) | Photography pin board system | |
| US5937752A (en) | Method and apparatus for pressure type stencil printing | |
| JPH0329939U (en) | ||
| JPS5954514A (en) | Pressing device | |
| US4705392A (en) | Vacuum apparatus blanket and method of making the same | |
| KR920000129A (en) | Apparatus and method for fabricating an integrated circuit package into multiple thin layers | |
| JP3670379B2 (en) | Printed object holding apparatus and stencil printing method and apparatus using the same | |
| CN214986475U (en) | Hot-pressing sealing device for liquid food plastic bag | |
| JPH0585353B2 (en) | ||
| KR960010661Y1 (en) | Flatbed Crimping Device | |
| JPH0355176B2 (en) | ||
| JPS63299928A (en) | Jig for pressing laminated plate | |
| JPS59188506U (en) | Non-drained expansion joint device | |
| JPS5852010A (en) | Packing method by tape material | |
| JPH0616778Y2 (en) | Stencil stamp | |
| JPS63161726U (en) | ||
| JPH04349696A (en) | Vacuum packing device in vacuum molding of printed wiring board | |
| FI68785C (en) | YTBEKLAEDNINGSFOERFARANDE OCH ANORDNING | |
| JPH08300791A (en) | Method and apparatus for reducing pressure stencil printing that prevents clogging of suction port | |
| JPS5819555Y2 (en) | Printing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |