CA1203455A - Masa sheeting apparatus - Google Patents
Masa sheeting apparatusInfo
- Publication number
- CA1203455A CA1203455A CA000431148A CA431148A CA1203455A CA 1203455 A CA1203455 A CA 1203455A CA 000431148 A CA000431148 A CA 000431148A CA 431148 A CA431148 A CA 431148A CA 1203455 A CA1203455 A CA 1203455A
- Authority
- CA
- Canada
- Prior art keywords
- roller
- masa
- band
- sheet
- hoops
- 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.)
- Expired
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- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
ABSTRACT
A masa sheeter having a sheeting roller provided with a plurality of hoops set in spaced circumferential grooves to carry scrap back into the sheeter infeed zone, a cutter acting against the roller to cut product pieces from the masa sheet between the hoops, and a tensioned flat rectangular wire band passing through said hoods and extending along the surface of the roller for peeling the product pieces from the roller.
A masa sheeter having a sheeting roller provided with a plurality of hoops set in spaced circumferential grooves to carry scrap back into the sheeter infeed zone, a cutter acting against the roller to cut product pieces from the masa sheet between the hoops, and a tensioned flat rectangular wire band passing through said hoods and extending along the surface of the roller for peeling the product pieces from the roller.
Description
3~
SPECIFICATION
MASA SHEETING APPARATUS
BACKGROUND OF THE INVENTION
The present invention relates to masa sheeting apparatus and, more particularly, to such apparatus in which a wire is employed to peel the masa sheet from the sheeting rollers.
Masa sheeting machines are used in the production of thin corn products formed from unleavened cornmeal dough such as tor-tillas and tortilla chips. These machines have for decades com-prised a pair of sheeting rollers positioned beneath a hopper. The masa squeezed between the rolls forms a sheet which adheres to the rollers by a wire so ~hat the entire sheet is carried by the second roller. A cutting device actingiagainst the second roller outlines product pieces in the sheet. A second peeling wire is provided to strip the masa sheet and the product pieces from the second roller after the cutting operation. The product pieces fall onto a take-away conveyor, but the scrap portions of the sheet are carried along with the roller back into the hopper by thin hoops ~itted to the roller.
The second roller is provided with spaced circumferential grooves in whlch the hoops are loosely positioned. The hoops are formed in place from bands having adjustably interlocking ends, The formed hoops have a diameter slightly less than that of the roller so that they remain captive within the grooves.
The grooves are sufficiently deep to allow the hoops to assume eccentric positions in which they protrude from the grooves a significant distance, g~
~2~3~iS
As the masa sheet is formed between the sheeting rollers, the masa is pressed against the hoops as well as the cylindrical surfaces of the rollers. Therefore, the masa sheet adheres to the hoops also. The second peeling wire is threaded through the hoops so that as the wire peels the masa sheet from the surface of the roller the sheet continues to adhere to the hoops and the cut pieces are severed from the sheet and fall onto the take-away conveyor as the sheet is æeeled from the roller, but the remainder of the sheet (the scrap) is carried by the hoops back into the hopper. For the decade~
that this type of machinery has been in operation, piano wire or similar high tensile strength round wire has been used exclusively as the peeling wires. The preferred wire size is .014 inc'n in diameter. wire of .016 inch diameter is also used, although it does not peel as well as the thinner wire. Over these decades of use, there has been a consistant pattern of breakage of the peel wires. The wires used to ~eel the cut masa sheet from the second sheeting rollers break after an average of about 8 hours of use. The wires used to peel the masa sheet from the first sheeting rollers brea~c after an average of about 32 hours of use. Each machine has a double set of sheeting rollers and, therefore, on the average
SPECIFICATION
MASA SHEETING APPARATUS
BACKGROUND OF THE INVENTION
The present invention relates to masa sheeting apparatus and, more particularly, to such apparatus in which a wire is employed to peel the masa sheet from the sheeting rollers.
Masa sheeting machines are used in the production of thin corn products formed from unleavened cornmeal dough such as tor-tillas and tortilla chips. These machines have for decades com-prised a pair of sheeting rollers positioned beneath a hopper. The masa squeezed between the rolls forms a sheet which adheres to the rollers by a wire so ~hat the entire sheet is carried by the second roller. A cutting device actingiagainst the second roller outlines product pieces in the sheet. A second peeling wire is provided to strip the masa sheet and the product pieces from the second roller after the cutting operation. The product pieces fall onto a take-away conveyor, but the scrap portions of the sheet are carried along with the roller back into the hopper by thin hoops ~itted to the roller.
The second roller is provided with spaced circumferential grooves in whlch the hoops are loosely positioned. The hoops are formed in place from bands having adjustably interlocking ends, The formed hoops have a diameter slightly less than that of the roller so that they remain captive within the grooves.
The grooves are sufficiently deep to allow the hoops to assume eccentric positions in which they protrude from the grooves a significant distance, g~
~2~3~iS
As the masa sheet is formed between the sheeting rollers, the masa is pressed against the hoops as well as the cylindrical surfaces of the rollers. Therefore, the masa sheet adheres to the hoops also. The second peeling wire is threaded through the hoops so that as the wire peels the masa sheet from the surface of the roller the sheet continues to adhere to the hoops and the cut pieces are severed from the sheet and fall onto the take-away conveyor as the sheet is æeeled from the roller, but the remainder of the sheet (the scrap) is carried by the hoops back into the hopper. For the decade~
that this type of machinery has been in operation, piano wire or similar high tensile strength round wire has been used exclusively as the peeling wires. The preferred wire size is .014 inc'n in diameter. wire of .016 inch diameter is also used, although it does not peel as well as the thinner wire. Over these decades of use, there has been a consistant pattern of breakage of the peel wires. The wires used to ~eel the cut masa sheet from the second sheeting rollers break after an average of about 8 hours of use. The wires used to peel the masa sheet from the first sheeting rollers brea~c after an average of about 32 hours of use. Each machine has a double set of sheeting rollers and, therefore, on the average
2! wires must be replaced per machine during each ei~ht-hour work shift. Replacement of each wire requires 15 to 20 minutes, during which time the machine is inoperative. Therefore, up to 50 minutes of an eight-hour shift is conventionally lost.
Therefore, on the average, each machine is idle for 30 to 50 minutes during each eight-hour shift with a resulting loss of up to 10~ of production.
b3~S5 SUMMARY OF THE INVENTION
One embodiment of this invention provides an improve-ment in masa sheeting apparatus. The apparatus includes a hopper for receiving masa, first and second driven rollers positioned beneath said hopper in closely spaced relation-ship to form a masa sheet, means for separating said masasheet from said first roller, a cutting member acting against said second roller for cutting said masa sheet, a take-away conveyor, and a tensioned wire extending along the surface of said second roller above said second roller.
The improvement comprises said second tensioned wire being a flat band having a width and a thickness, the widthwise surface thereof being held flat against the surface of said second roller.
In another embodiment the apparatus comprises a hopper for receiving masa, first and second driven rollers posi-tioned beneath said hopper in closely spaced relationship to form a masa sheet, means for separating said masa sheet from said first roller, said second roller having spaced circumferential grooves and hoops loosely positioned in said grooves, said hoops having an outside diameter about equal to that of said second roller between said grooves, a cutting member acting against said second roller for cutting said masa sheet between said grooves, a take-away conveyor, and a tensioned wire passing through said hoops and extending along the surface of said second roller above said take-away conveyor for separating said cut masa sheet from said second roll. The improvement comprises said second tensioned wire being a flat band having a width and thickness, the widthwise surface thereof being held flat against the surface of said second roller.
, . . .
~U`3~S~
BRIEF DESCRIPTION OF THE DRAWINGS
A preferred embodiment of the invention has been chosen for purposes of illustration and description and is shown in the accompanying drawings, forming a part of the specification wherein:
Fig. l is a side elevational view illustrating the general arrangement of a masa sheeting apparatus embody-ing the present invention;
Fig. 2 is an elevational view taken along line 2-2 on Fig. l;
Fig. 3 is a sectional view taken along line 3-3 on ~ig. 2;
Fig. 4 is a sectional view taken along line 4-4 on Fig. l;
Fig. 5 is a view taken along line 5-5 on Fig. 4;
Fig. 6 is a view taken along line 6-6 on Fig. 4;
Fig. 7 is a schematic sectional view taken along the line 7-7 on Fig. 2 and illustrating the general operation of the masa sheeting apparatus.
Fig. 8 is an enlarged view of a portion of Fig. 7, illustrating the peeling wire of the present invention in operation.
'~"' - 3a -!
~L21~3~55 DESCRIPTIO~ OF THE PREFERRED E'IBODI~lENT
Referring to the drawings in detail there is shown a masa sheeting machine l0 embodvin~ the ~resent invention.
The sheeter 10 is a dual machine, having two essentially identical assemblies located side by side within a single frame structure. For purposes of simDlicity, only one assembly is shown in the drawin~s except in Fig 2 where a portion of the second assemblv is illustrated. Also for purposes of simplicity, only those elements of the machine are shown which must be described in order to impart a full understanding of the invention; for example, the conventional gear train used to drive the elements of the machine is not disclosed.
The masa sheeting machine 10 includes side frame plates 11 (one of which is shown) and a center frame plate 12 (Fig 2) which together support the elements that make up the two assem~lies.
The assembly shown, comprises a hopper 14, a pair of sheeting rollers 15 and 16, a rotary cutter 14, and a take-away conveyor 1~.
The roller 15 has a smooth uninterrupted cvlindrical surface and is mounted on an axial shaft that is journalled on one end in a bearing 20 carried by the frame plate 11 and on the other end in a bearin~ (not shown) carried by the center frame plate 12. The second roller 16 is joined by a thick shaft 21 to the second roller 22 of the other sheeting assembly. A short shaft 24 extending from the roller 16 is journalled in a bearing 25 positioned in the frame plate 11.
~ similar arrangement (not shown) is provided on the opposite end of the roller 22 to complete the supporting arrangement of the dual rollers 16 and 22.
`` ~2~3~55 The conveyor 19 includes a roller 26 extending between the center frame plate 12 and the side frame plate 11, and journalled in bearings 27 mounted in the frame plates. An endless conveyor band 29 extends from the roller 26 to a second roller 30 (F'ig 7) to carry the product to the next production operation.
The second roller sheeting 16 is formed with spaced circumferential grooves 31 o~ generally rectangular cross-section, as shown in Fig 34. In each of these grooves a thin steel hoop 32 is positloned. The hoops are formed in place from bands having adjustably interlockinq ends. The hoops are formed to have a diameter slightlY less than that of the roller 16 so that thev remain captive within the grooves.
The frame plate 11 is provided with a recess 34, extending along the edge of the roller 16 and an oT~ening 35 adjacent the edge of the roller 15. Peeling wire tensioning mechanisms 36 and 37 are mounted on the outer surface of the frame ~late 11 adjacent to the recess 34 and the opening 35 respectively.
Referring to Fig 2, a oeeling wire 40 extends from a peg 41 mounted on the center frame olate along the surface of the roller 16 in a gentle spiral to the tensioning mechanism 36. The peeling wire 40 passes through the hoops 32 as shown in Figs 2, 3, 4, and 8. At the point where the wire 40. passes under each hoop, the hoop protrudes from the groove 31.
The tensioning mechanisms 36 and 37 each include a guide plate 42, a blo,ck 44 perpendicular to the plate 42, a tensioning peg 45 extending through the block and having a worm-drive gear 46 mounted on the end thereof, and a hand operated worm gear 47 havinq a shaEt 49 and handle 50 connected thereto.
!
~2~55 The gulde plate 42 is formed with a n~lmber of slots 51 therein and when the peelin~ wire 40 is installed it is set into one of these slots and then wrapoed around the tensioning pet 45. The handle 50 is used to drive the worm gear 47 and rotate the peg 45 to tension the wire sùfficientl~ to produce a good neeling action, a very stic~y masa requiring more tension than a drier masa.
In accordance with the present invention the peelin~
wire 40 has a flat band form and is installed so that the large widthwise surface lies flat against the cylindrical surface o~ the second roller. In the Dreferred embodiment, the flat band is formed by rolling a round wire and, therefore, the band has rounded edges as shown in Fig ~.
The slots 51 are enlarged to receive the width of the peeling wire band. The band is laid flat in the slots 51 and twisted 90 degrees before being wrapped around the tensioning peg 45.
Another flat wire band 52 (see Fig 3) extends along the surface of the first sheeting roller 15 between an attachment (not shown) provided on the center frame olate 12 and the tensioning mechanism 3'. As shown in Fig 7, the masa sheet formed by the sheeting rolls 15 and 16 is peeled from the roller 15 by the peeling wire 52. The rotary cutter cuts product pieces from the masa sheet, however, both the cut pieces and the remainder of the sheet continue to adhere to the surface of the roller 16 and to the outer surfaces of the hoops 32.
As shown in FicJ 8, the peeling wire 40 separates the cut product ~ieces and the remainder of the sheet from the surface of the roller 16. The oroduct pieces fall onto tl-e take-away convevor 19. The scrap masa sheet however continues to adhere to the ~;~Q3~5 surface of tne hoops 32 which are protruding from ~heir grooves.
The hoops thus carry the scrap masa sheet back into the hooper.
In the sheeting machine 10, the roller 16 has a diameter of about 6.5 inches and a length of about 15 inches. Peeling wire bands of stainless steel having a thickness of .010 inch and a width of .062 inch were installed in the sheetinq machine and the machine was operated in a noncommercial test run held under normal production conditions for one eight-hour shift per day, five days a week, for two weeks. During this two-week period not a single peeling wire broke or was replaced for any reason. During such a period, if prior art peeling wires were used, it would have been necessar~ to replace 20 wires on the second rollers and several on the first rollers. In addition the wire bands 40 and 52 peeled the masa sheet from the rollers 15 and 16 more throughly than did the Drior art round piano wires.
1`he invention is not limited to masa sheeting machines with rollers of a particular size. Other masa sheeters have rollers of ~ inch and 10 inch diameter. The present invention will provide the same efficacious results on machines with rollers of these or greater dimensions.
It will be seen from the foregoing that the present invention provides an improvement in ~asa sheeting apparatus which severlv reduces lost production time resulting from the replacement o~ peeling wires.
Therefore, on the average, each machine is idle for 30 to 50 minutes during each eight-hour shift with a resulting loss of up to 10~ of production.
b3~S5 SUMMARY OF THE INVENTION
One embodiment of this invention provides an improve-ment in masa sheeting apparatus. The apparatus includes a hopper for receiving masa, first and second driven rollers positioned beneath said hopper in closely spaced relation-ship to form a masa sheet, means for separating said masasheet from said first roller, a cutting member acting against said second roller for cutting said masa sheet, a take-away conveyor, and a tensioned wire extending along the surface of said second roller above said second roller.
The improvement comprises said second tensioned wire being a flat band having a width and a thickness, the widthwise surface thereof being held flat against the surface of said second roller.
In another embodiment the apparatus comprises a hopper for receiving masa, first and second driven rollers posi-tioned beneath said hopper in closely spaced relationship to form a masa sheet, means for separating said masa sheet from said first roller, said second roller having spaced circumferential grooves and hoops loosely positioned in said grooves, said hoops having an outside diameter about equal to that of said second roller between said grooves, a cutting member acting against said second roller for cutting said masa sheet between said grooves, a take-away conveyor, and a tensioned wire passing through said hoops and extending along the surface of said second roller above said take-away conveyor for separating said cut masa sheet from said second roll. The improvement comprises said second tensioned wire being a flat band having a width and thickness, the widthwise surface thereof being held flat against the surface of said second roller.
, . . .
~U`3~S~
BRIEF DESCRIPTION OF THE DRAWINGS
A preferred embodiment of the invention has been chosen for purposes of illustration and description and is shown in the accompanying drawings, forming a part of the specification wherein:
Fig. l is a side elevational view illustrating the general arrangement of a masa sheeting apparatus embody-ing the present invention;
Fig. 2 is an elevational view taken along line 2-2 on Fig. l;
Fig. 3 is a sectional view taken along line 3-3 on ~ig. 2;
Fig. 4 is a sectional view taken along line 4-4 on Fig. l;
Fig. 5 is a view taken along line 5-5 on Fig. 4;
Fig. 6 is a view taken along line 6-6 on Fig. 4;
Fig. 7 is a schematic sectional view taken along the line 7-7 on Fig. 2 and illustrating the general operation of the masa sheeting apparatus.
Fig. 8 is an enlarged view of a portion of Fig. 7, illustrating the peeling wire of the present invention in operation.
'~"' - 3a -!
~L21~3~55 DESCRIPTIO~ OF THE PREFERRED E'IBODI~lENT
Referring to the drawings in detail there is shown a masa sheeting machine l0 embodvin~ the ~resent invention.
The sheeter 10 is a dual machine, having two essentially identical assemblies located side by side within a single frame structure. For purposes of simDlicity, only one assembly is shown in the drawin~s except in Fig 2 where a portion of the second assemblv is illustrated. Also for purposes of simplicity, only those elements of the machine are shown which must be described in order to impart a full understanding of the invention; for example, the conventional gear train used to drive the elements of the machine is not disclosed.
The masa sheeting machine 10 includes side frame plates 11 (one of which is shown) and a center frame plate 12 (Fig 2) which together support the elements that make up the two assem~lies.
The assembly shown, comprises a hopper 14, a pair of sheeting rollers 15 and 16, a rotary cutter 14, and a take-away conveyor 1~.
The roller 15 has a smooth uninterrupted cvlindrical surface and is mounted on an axial shaft that is journalled on one end in a bearing 20 carried by the frame plate 11 and on the other end in a bearin~ (not shown) carried by the center frame plate 12. The second roller 16 is joined by a thick shaft 21 to the second roller 22 of the other sheeting assembly. A short shaft 24 extending from the roller 16 is journalled in a bearing 25 positioned in the frame plate 11.
~ similar arrangement (not shown) is provided on the opposite end of the roller 22 to complete the supporting arrangement of the dual rollers 16 and 22.
`` ~2~3~55 The conveyor 19 includes a roller 26 extending between the center frame plate 12 and the side frame plate 11, and journalled in bearings 27 mounted in the frame plates. An endless conveyor band 29 extends from the roller 26 to a second roller 30 (F'ig 7) to carry the product to the next production operation.
The second roller sheeting 16 is formed with spaced circumferential grooves 31 o~ generally rectangular cross-section, as shown in Fig 34. In each of these grooves a thin steel hoop 32 is positloned. The hoops are formed in place from bands having adjustably interlockinq ends. The hoops are formed to have a diameter slightlY less than that of the roller 16 so that thev remain captive within the grooves.
The frame plate 11 is provided with a recess 34, extending along the edge of the roller 16 and an oT~ening 35 adjacent the edge of the roller 15. Peeling wire tensioning mechanisms 36 and 37 are mounted on the outer surface of the frame ~late 11 adjacent to the recess 34 and the opening 35 respectively.
Referring to Fig 2, a oeeling wire 40 extends from a peg 41 mounted on the center frame olate along the surface of the roller 16 in a gentle spiral to the tensioning mechanism 36. The peeling wire 40 passes through the hoops 32 as shown in Figs 2, 3, 4, and 8. At the point where the wire 40. passes under each hoop, the hoop protrudes from the groove 31.
The tensioning mechanisms 36 and 37 each include a guide plate 42, a blo,ck 44 perpendicular to the plate 42, a tensioning peg 45 extending through the block and having a worm-drive gear 46 mounted on the end thereof, and a hand operated worm gear 47 havinq a shaEt 49 and handle 50 connected thereto.
!
~2~55 The gulde plate 42 is formed with a n~lmber of slots 51 therein and when the peelin~ wire 40 is installed it is set into one of these slots and then wrapoed around the tensioning pet 45. The handle 50 is used to drive the worm gear 47 and rotate the peg 45 to tension the wire sùfficientl~ to produce a good neeling action, a very stic~y masa requiring more tension than a drier masa.
In accordance with the present invention the peelin~
wire 40 has a flat band form and is installed so that the large widthwise surface lies flat against the cylindrical surface o~ the second roller. In the Dreferred embodiment, the flat band is formed by rolling a round wire and, therefore, the band has rounded edges as shown in Fig ~.
The slots 51 are enlarged to receive the width of the peeling wire band. The band is laid flat in the slots 51 and twisted 90 degrees before being wrapped around the tensioning peg 45.
Another flat wire band 52 (see Fig 3) extends along the surface of the first sheeting roller 15 between an attachment (not shown) provided on the center frame olate 12 and the tensioning mechanism 3'. As shown in Fig 7, the masa sheet formed by the sheeting rolls 15 and 16 is peeled from the roller 15 by the peeling wire 52. The rotary cutter cuts product pieces from the masa sheet, however, both the cut pieces and the remainder of the sheet continue to adhere to the surface of the roller 16 and to the outer surfaces of the hoops 32.
As shown in FicJ 8, the peeling wire 40 separates the cut product ~ieces and the remainder of the sheet from the surface of the roller 16. The oroduct pieces fall onto tl-e take-away convevor 19. The scrap masa sheet however continues to adhere to the ~;~Q3~5 surface of tne hoops 32 which are protruding from ~heir grooves.
The hoops thus carry the scrap masa sheet back into the hooper.
In the sheeting machine 10, the roller 16 has a diameter of about 6.5 inches and a length of about 15 inches. Peeling wire bands of stainless steel having a thickness of .010 inch and a width of .062 inch were installed in the sheetinq machine and the machine was operated in a noncommercial test run held under normal production conditions for one eight-hour shift per day, five days a week, for two weeks. During this two-week period not a single peeling wire broke or was replaced for any reason. During such a period, if prior art peeling wires were used, it would have been necessar~ to replace 20 wires on the second rollers and several on the first rollers. In addition the wire bands 40 and 52 peeled the masa sheet from the rollers 15 and 16 more throughly than did the Drior art round piano wires.
1`he invention is not limited to masa sheeting machines with rollers of a particular size. Other masa sheeters have rollers of ~ inch and 10 inch diameter. The present invention will provide the same efficacious results on machines with rollers of these or greater dimensions.
It will be seen from the foregoing that the present invention provides an improvement in ~asa sheeting apparatus which severlv reduces lost production time resulting from the replacement o~ peeling wires.
Claims (14)
1. In masa sheeting apparatus comprising a hopper for receiving masa, first and second driven rollers positioned beneath said hopper in closely spaced relationship to form a masa sheet, means for separating said masa sheet from said first roller, a cutting member acting against said second roller for cutting said masa sheet, a take-away con-veyor, and a tensioned wire extending along the surface of said second roller above said second roller, the improve-ment comprising said second tensioned wire being a flat band having a width and a thickness, the widthwise surface thereof being held flat against the surface of said second roller.
2. Apparatus according to Claim 1 wherein the width of said band is about six times greater than the thickness thereof.
3. Apparatus according to Claim 1 wherein the thick-ness of said band is about .010 inch.
4. Apparatus according to Claim 3 wherein the width of said band is about .062 inch.
5. Apparatus according to Claim 4 wherein said second roller is at least about 6 inches in diameter.
6. Apparatus according to Claim 5 wherein said second roller is at least about 15 inches long.
7. Apparatus according to Claim 4 wherein said band has a generally rectangular cross-section with rounded edges.
8. In masa sheeting apparatus comprising a hopper for receiving masa, first and second driven rollers positioned beneath said hopper in closely spaced relationship to form a masa sheet, means for separating said masa sheet from said first roller, said second roller having spaced circum-ferential grooves and hoops loosely positioned in said grooves, said hoops having an outside diameter about equal to that of said second roller between said grooves, a cut-ting member acting against said second roller for cutting said masa sheet between said grooves, a take-away conveyor, and a tensioned wire passing through said hoops and extend-ing along the surface of said second roller above said take-away conveyor for separating said cut masa sheet from said second roll, the improvement comprising said second tensioned wire being a flat band having a width and thick-ness, the widthwise surface thereof being held flat against the surface of said second roller.
9. Apparatus according to Claim 8 wherein the width of said band is about six times greater than the thickness thereof.
10. Apparatus according to Claim 8 wherein the thick-ness of said band is about .010 inch.
11. Apparatus according to Claim 10 wherein the width of said band is about .062 inch.
12. Apparatus according to Claim 11 wherein said second roller is at least about 6 inches in diameter.
13. Apparatus according to Claim 12 wherein said second roller is at least about 12 inches long.
14. Apparatus according to Claim 11 wherein said band has a generally rectangular cross-section with rounded edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000431148A CA1203455A (en) | 1983-06-24 | 1983-06-24 | Masa sheeting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000431148A CA1203455A (en) | 1983-06-24 | 1983-06-24 | Masa sheeting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1203455A true CA1203455A (en) | 1986-04-22 |
Family
ID=4125551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000431148A Expired CA1203455A (en) | 1983-06-24 | 1983-06-24 | Masa sheeting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1203455A (en) |
-
1983
- 1983-06-24 CA CA000431148A patent/CA1203455A/en not_active Expired
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| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |