CA1186178A - Insect protection for openings of buildings and process for manufacturing this insect protection - Google Patents
Insect protection for openings of buildings and process for manufacturing this insect protectionInfo
- Publication number
- CA1186178A CA1186178A CA000403910A CA403910A CA1186178A CA 1186178 A CA1186178 A CA 1186178A CA 000403910 A CA000403910 A CA 000403910A CA 403910 A CA403910 A CA 403910A CA 1186178 A CA1186178 A CA 1186178A
- Authority
- CA
- Canada
- Prior art keywords
- net
- opening
- building
- insect protection
- width
- 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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- Catching Or Destruction (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention provides an insect protection for use in the openings of buildings comprising a net of flex-ible weather-resistant and corrosion-resistant material pro-vided with horizontal folds, so as to be upwardly and downwardly moveable between a first open position, in which it is folded concentric wise at the folds and leaves the opening of the building at least partially free, and a second essentially extended closed position, in which it closes the opening of the building, the net being disposable within the opening of the building and having in an undeformed condition a width greater than the distance between the lateral boundary surfaces of the opening of the building such that the lateral edges of the net elastically contact said lateral boundary surfaces in an unfolded condition, and a horizontal weight rod fixed to a lower end portion of the net and having a lesser length than the width of the net and means for moving the net upwardly and downardly bet-ween said positions.
The present invention provides an insect protection for use in the openings of buildings comprising a net of flex-ible weather-resistant and corrosion-resistant material pro-vided with horizontal folds, so as to be upwardly and downwardly moveable between a first open position, in which it is folded concentric wise at the folds and leaves the opening of the building at least partially free, and a second essentially extended closed position, in which it closes the opening of the building, the net being disposable within the opening of the building and having in an undeformed condition a width greater than the distance between the lateral boundary surfaces of the opening of the building such that the lateral edges of the net elastically contact said lateral boundary surfaces in an unfolded condition, and a horizontal weight rod fixed to a lower end portion of the net and having a lesser length than the width of the net and means for moving the net upwardly and downardly bet-ween said positions.
Description
6~
The ~xesent invention relates to an insect p~otec--tion for use in the openings of buildin~, in particular window~.
It is known to close the openings of buildings, in particula~ windows, with a net to prevent insects, such as flies, mosquitoes and wasps from ente~ing the building through such openings. This net is fre~uent]~ fastened on a rigid frame which can Be applied in front the opening of the building.
Such an insect protection is effective when carefully mounted hut cannot be used everywhere and for example cannot be used in those places where the opening of the building is only difficul--tly accessible or where the outer side of such openings is given a profile, for example by window drips or casings.
An insect protection is also known which can be lower-ed in front of the opening of the building similar to a curtain.
E'or reliably hindering insects from enterin,g the building, the lateral edges of the curtain must, on lowering of the curtain be sealingly pressed against -the face of the building and be maintained in this position. This not only requires separate fastening means but also makes it necessary to use these fast-ening means which requires additional work.
Another known insect protection is in the form of a roller window curtain which in wound-up condition is housed in a casing built into the window lintel, guide rails being pro-vided at the lateral side surfaces of the window lintel within which the curtain can be pulled down in a sealing condition.
~uch an insec-t protection is not oniy Very expensive but also reduces the effective width of the window opening so that such guide rails cannot be mounted at an~ place, paxticularly if -they ~epresent a~n obstacle for completely opening the window~
The ~resent inVention proYide~ an insec-t protection for openi~gs of buildings, inwhich the aEoresaid d~awba,cks of of conven~ional structures are avoided. The present invention 7~
provides an lnsect protection for openings of buildings such that the openings can reliably and in a simple manner and wi-th low capital expenditure be sealed against the ingress of insects. The present invention further provides insect protection which can universally be appiied and can be used independently from the type of the building openings to be sealed and from protrusions or the like provided on buildings. The present inven-tion again provides insect pro-tection which has an unobjectionable sealing against flying insects independently from whether exact size standards have been me-t or not even with uneven bordering surfaces of the building openings. The present invention also provides insect protection which occupies only a small space in its closed posi-tion leaving the buliding opening free so that in such position ingress of light and air through -the building openings is no-t reduced at all or only to a neglectible extent. The present invention again provides an insect protection which can be moved in a simple manner from a first closed position leaving the building opening free into a second opening position in which it closes the building opening. The invention also provides an insect pro-tection such that any ingress of insects through -the building openings is prevented even in case of high winds and storm conditions.
The present invention further provides a process for manufacturing such an insect protection in a simple manner.
According to the present invention, there is provided insect protection for an opening in a building, ~ ~6~
said opening being defined by a pair of substantially vertical side boundary surfaces, an upper boundary surface and a lower boundary surface, said protection comprising: a net of elastic weather-resistant and corrosion-resistant material to be placed within said opening and provided with permanent horizontal creases, said net adapted for vertical motlon between a first position in which said net is folded at said creases in zig-zag configuration to at least partially expose said opening, and a second substantially stretched position in which said net substantially seal.s said opening, the width of said net when in non deformed condition being greater than the width of said opening so that the lateral edges of said net are compressed be-tween said vertical side boundary surfaces; ahorizontal stabilizing rod fixed to the lower edge of said net, the length of said rod being less than the width of said opening; a pair of traction cords for moving said net upward and downward between said first and second positions, each such cord extending upward through a series of vertically disposed openings in said net, one such opening being situated between each such pair of adjacent creases and the lower end of each such cord being secured to said stabilizing rvd; and means for securing in tightly folded configuration the ~cess len~th said net to permit adjustment of the stretched length of said net to the height of said building opening.
Desirably the openings are elongated slots, the longitudinal axesofwhich extend from top to bottom.
Suitably fixing means are disposed on the trac-tion cords Eor holding several of the fixed folded edges of the net together so that the lower-most section of the net can be adjus-ted to the height of the building opening over which the net is required to be pulled upwardly.
Desirably the fixing means comprise slot-ted punched discs, the traction cords being passed through the holes of the punched discs and the punched discs being maintained in position by knots provided in the traction cords.
In a further embodiment of the present invention, fastening members are provided on -the bottom side of the weight rod, said fastening members cooperating with corresponding members on the bottom edge of the building opening to fix the net in its extended position in which the net closes -the opening - 3a -,~, of the build~ng.
The fastening members are press studs.
The present in~ention also provides a process for producing an insect protection compr.lsin~ a flexible net of weather-proof, corrosion resis-tant ~aterial provided with folds horizontally extending concentric like comprising coating the net with a compound which sizes the meshes of the ne-t and subsequently fixing the netin concentric like folds with heat and steam.
The present invention will be further illustrated by way of the accompanying drawings, in which:-Figure 1 is a front elevation of an opening of a building being closed by an insect protection according to one embodiment of the present invention;
Figure 2 is a section along line II-II of Figure 1, on an enlarged scale;
Figure 3 is a section along line III-I:[I of Figure 2;
Figure 4 is a detail of the upper edge of the build-ing opening at the beginning downward movement of the net from its first closed position, i.n which it leaves the build--ing opening free, into its second open position, in which it closes the building opening;
Figure 5 also is a detail of the upper edge of the building opening, during upward movement of the net; and Figure 6 is a side elevation of the fastening of the lower edge of the net.
~ e~errIng to the accompa~nying drawings, and opening of a building IS .to be tightly closed to the passage of insects but remain permeafile fo~ light and air, The building opening h.as a xectangular cro$s section which is limited by the window e~brasure wh~ch is defined bX two side surEaces 1, the lintel 2 and the parapet 3. ~ llead rail 4 is fixedly mounted on the lintel 2 or inserted into -this lintel and carrles a flex-ible net 5 rnade oE a weather-proof and corros:ion-resistant material, particularly a glass fibre Eabric. Net 5 is pleated in a zig-zag conf:iguration and the folding edges 6 have a distance of for exarrlpLe approximately 40 mm from one another. 'l'his ne-t 5 tightly closes the opening of the building in its extended open position ~Figure 1). For this the width B (Figure 1) of the net 5 is slightly greater than the inside width b of the building opening, i.e,sligh-tly greater than the dis-tance of both side sur-faces 1 of -the window frame or the window embrasure. Wi-th -this the net 5 slides along and tightly contac-ts the side surfaces 1 so -that there is a complete tightness agains-t flying insec-ts from ingress through the opening. The bottom edge of the net 5 has a weight rod 7 connected thereto which can be fixed to the para-pet 3 by rneans oE spring-loaded catches, press-studs 3 or the like. This also tends to prevent -the net 5 from being moved out of the building opening, for example by -the force of an incoming wind or draught, which would reduce the tigh-tness.
Within the building opening or wi-thin the window frame, the net 5 can be moved between a folded position (Figures 4 -to 5), in which the net leaves the building opening a-t least par-tially free and an extended position (Figure 1), in which the net closes the building opening. Two or more -traction cords 9 are provided for -this in the area of the lateral edges oE the ne-t 5, -the bottom ends of the -traction cords being fixed to the weight rod 7. FurtherMore, -the traction cords are passed upwardly through the head rai:L 4 and fur-ther, in a conventional manner, to a common traction member 10 (Figures 4, 5) which can be stopped in any desired manner in the folded position of the up-wardly pulled net 5. From this position, the net 5 can belowered under its own weight and under -the effect of the weight rod 7 in the direction of -the arrow 12 (Figure 4) and during this ~ ~36~'7~
~ovement of tlle net i-ts longitudinal edges 11 become upwardly bent due to the frictional adherence on the side surEaces 1 (Figure ~) which becomes possible due -to the elast:Lc flexibility of the net 5. When pulling the ne-t 5 from its extended position in -the upwarcl direction into -the folded posi-tion, leaving the building opening free, in the direction of arrow 13 of Figure 5, the lateral longitudinal edges 11 of the ne-t 5 sl:ide along -the side surfaces 1 and become bent in a clownward direction. F`or preventing tile weight rod 7 from sliding along the side surfaces :l of the build:ing opening during said movements, the length of the weight rod 7 is less than the inside width b of the building opening, and it a:Lso becomes possible to adapt the net to tlle exist:ing width of the building opening.
q~he traction cords 9, preferably consisting oE terylene, are passed through openings 14 of -the net 5, said openings being in the form of elongated slots having a length oE approxima-tely 5 mm the one longitudinal axes of which (as seen in the extended position of the net 5 shown in Figure 1) ex-tend in vertical direc-t:ion. Openings 14 are provided between -two adjacent folding edges 6 of -the net in a number corresponding to the number of the tension cords 9 and are dimensioned such that the tension cords 9 pass therethrough as snugly as possible so that insects canno-t enter through the remaining gap.
The net 5 folded in pleated configura-tion like a ja:Lousie, is designed so as to be univeraslly used within a wide range of heig}lts of the building opening. For this purpose, the lower portion 15 ~igure 6) comprising the overlength of the net 5 is in the extended position of -the ne-t 5 preventeci from becom-ing unfolded by limiting stops which urge said '71~
overlen~th in the di~ection of the weight rod 7. These limitin~
s-tops are formed o~ slot-ted punched discs 16 which are shifted on-to the tension cords 9 and held in position by knots 17 of the tension cords 9.
The ~et may be made of a glass fibre fabric having its folding edges fixed by a sizing operation. For this, the glass fibre net is coated with a compound fixing the net meshes, particularly with a liquid s~nthetic plastics material based on vinyl and subsequently fixed by accordion pleating under the action of heat and stea~.
The ~xesent invention relates to an insect p~otec--tion for use in the openings of buildin~, in particular window~.
It is known to close the openings of buildings, in particula~ windows, with a net to prevent insects, such as flies, mosquitoes and wasps from ente~ing the building through such openings. This net is fre~uent]~ fastened on a rigid frame which can Be applied in front the opening of the building.
Such an insect protection is effective when carefully mounted hut cannot be used everywhere and for example cannot be used in those places where the opening of the building is only difficul--tly accessible or where the outer side of such openings is given a profile, for example by window drips or casings.
An insect protection is also known which can be lower-ed in front of the opening of the building similar to a curtain.
E'or reliably hindering insects from enterin,g the building, the lateral edges of the curtain must, on lowering of the curtain be sealingly pressed against -the face of the building and be maintained in this position. This not only requires separate fastening means but also makes it necessary to use these fast-ening means which requires additional work.
Another known insect protection is in the form of a roller window curtain which in wound-up condition is housed in a casing built into the window lintel, guide rails being pro-vided at the lateral side surfaces of the window lintel within which the curtain can be pulled down in a sealing condition.
~uch an insec-t protection is not oniy Very expensive but also reduces the effective width of the window opening so that such guide rails cannot be mounted at an~ place, paxticularly if -they ~epresent a~n obstacle for completely opening the window~
The ~resent inVention proYide~ an insec-t protection for openi~gs of buildings, inwhich the aEoresaid d~awba,cks of of conven~ional structures are avoided. The present invention 7~
provides an lnsect protection for openings of buildings such that the openings can reliably and in a simple manner and wi-th low capital expenditure be sealed against the ingress of insects. The present invention further provides insect protection which can universally be appiied and can be used independently from the type of the building openings to be sealed and from protrusions or the like provided on buildings. The present inven-tion again provides insect pro-tection which has an unobjectionable sealing against flying insects independently from whether exact size standards have been me-t or not even with uneven bordering surfaces of the building openings. The present invention also provides insect protection which occupies only a small space in its closed posi-tion leaving the buliding opening free so that in such position ingress of light and air through -the building openings is no-t reduced at all or only to a neglectible extent. The present invention again provides an insect protection which can be moved in a simple manner from a first closed position leaving the building opening free into a second opening position in which it closes the building opening. The invention also provides an insect pro-tection such that any ingress of insects through -the building openings is prevented even in case of high winds and storm conditions.
The present invention further provides a process for manufacturing such an insect protection in a simple manner.
According to the present invention, there is provided insect protection for an opening in a building, ~ ~6~
said opening being defined by a pair of substantially vertical side boundary surfaces, an upper boundary surface and a lower boundary surface, said protection comprising: a net of elastic weather-resistant and corrosion-resistant material to be placed within said opening and provided with permanent horizontal creases, said net adapted for vertical motlon between a first position in which said net is folded at said creases in zig-zag configuration to at least partially expose said opening, and a second substantially stretched position in which said net substantially seal.s said opening, the width of said net when in non deformed condition being greater than the width of said opening so that the lateral edges of said net are compressed be-tween said vertical side boundary surfaces; ahorizontal stabilizing rod fixed to the lower edge of said net, the length of said rod being less than the width of said opening; a pair of traction cords for moving said net upward and downward between said first and second positions, each such cord extending upward through a series of vertically disposed openings in said net, one such opening being situated between each such pair of adjacent creases and the lower end of each such cord being secured to said stabilizing rvd; and means for securing in tightly folded configuration the ~cess len~th said net to permit adjustment of the stretched length of said net to the height of said building opening.
Desirably the openings are elongated slots, the longitudinal axesofwhich extend from top to bottom.
Suitably fixing means are disposed on the trac-tion cords Eor holding several of the fixed folded edges of the net together so that the lower-most section of the net can be adjus-ted to the height of the building opening over which the net is required to be pulled upwardly.
Desirably the fixing means comprise slot-ted punched discs, the traction cords being passed through the holes of the punched discs and the punched discs being maintained in position by knots provided in the traction cords.
In a further embodiment of the present invention, fastening members are provided on -the bottom side of the weight rod, said fastening members cooperating with corresponding members on the bottom edge of the building opening to fix the net in its extended position in which the net closes -the opening - 3a -,~, of the build~ng.
The fastening members are press studs.
The present in~ention also provides a process for producing an insect protection compr.lsin~ a flexible net of weather-proof, corrosion resis-tant ~aterial provided with folds horizontally extending concentric like comprising coating the net with a compound which sizes the meshes of the ne-t and subsequently fixing the netin concentric like folds with heat and steam.
The present invention will be further illustrated by way of the accompanying drawings, in which:-Figure 1 is a front elevation of an opening of a building being closed by an insect protection according to one embodiment of the present invention;
Figure 2 is a section along line II-II of Figure 1, on an enlarged scale;
Figure 3 is a section along line III-I:[I of Figure 2;
Figure 4 is a detail of the upper edge of the build-ing opening at the beginning downward movement of the net from its first closed position, i.n which it leaves the build--ing opening free, into its second open position, in which it closes the building opening;
Figure 5 also is a detail of the upper edge of the building opening, during upward movement of the net; and Figure 6 is a side elevation of the fastening of the lower edge of the net.
~ e~errIng to the accompa~nying drawings, and opening of a building IS .to be tightly closed to the passage of insects but remain permeafile fo~ light and air, The building opening h.as a xectangular cro$s section which is limited by the window e~brasure wh~ch is defined bX two side surEaces 1, the lintel 2 and the parapet 3. ~ llead rail 4 is fixedly mounted on the lintel 2 or inserted into -this lintel and carrles a flex-ible net 5 rnade oE a weather-proof and corros:ion-resistant material, particularly a glass fibre Eabric. Net 5 is pleated in a zig-zag conf:iguration and the folding edges 6 have a distance of for exarrlpLe approximately 40 mm from one another. 'l'his ne-t 5 tightly closes the opening of the building in its extended open position ~Figure 1). For this the width B (Figure 1) of the net 5 is slightly greater than the inside width b of the building opening, i.e,sligh-tly greater than the dis-tance of both side sur-faces 1 of -the window frame or the window embrasure. Wi-th -this the net 5 slides along and tightly contac-ts the side surfaces 1 so -that there is a complete tightness agains-t flying insec-ts from ingress through the opening. The bottom edge of the net 5 has a weight rod 7 connected thereto which can be fixed to the para-pet 3 by rneans oE spring-loaded catches, press-studs 3 or the like. This also tends to prevent -the net 5 from being moved out of the building opening, for example by -the force of an incoming wind or draught, which would reduce the tigh-tness.
Within the building opening or wi-thin the window frame, the net 5 can be moved between a folded position (Figures 4 -to 5), in which the net leaves the building opening a-t least par-tially free and an extended position (Figure 1), in which the net closes the building opening. Two or more -traction cords 9 are provided for -this in the area of the lateral edges oE the ne-t 5, -the bottom ends of the -traction cords being fixed to the weight rod 7. FurtherMore, -the traction cords are passed upwardly through the head rai:L 4 and fur-ther, in a conventional manner, to a common traction member 10 (Figures 4, 5) which can be stopped in any desired manner in the folded position of the up-wardly pulled net 5. From this position, the net 5 can belowered under its own weight and under -the effect of the weight rod 7 in the direction of -the arrow 12 (Figure 4) and during this ~ ~36~'7~
~ovement of tlle net i-ts longitudinal edges 11 become upwardly bent due to the frictional adherence on the side surEaces 1 (Figure ~) which becomes possible due -to the elast:Lc flexibility of the net 5. When pulling the ne-t 5 from its extended position in -the upwarcl direction into -the folded posi-tion, leaving the building opening free, in the direction of arrow 13 of Figure 5, the lateral longitudinal edges 11 of the ne-t 5 sl:ide along -the side surfaces 1 and become bent in a clownward direction. F`or preventing tile weight rod 7 from sliding along the side surfaces :l of the build:ing opening during said movements, the length of the weight rod 7 is less than the inside width b of the building opening, and it a:Lso becomes possible to adapt the net to tlle exist:ing width of the building opening.
q~he traction cords 9, preferably consisting oE terylene, are passed through openings 14 of -the net 5, said openings being in the form of elongated slots having a length oE approxima-tely 5 mm the one longitudinal axes of which (as seen in the extended position of the net 5 shown in Figure 1) ex-tend in vertical direc-t:ion. Openings 14 are provided between -two adjacent folding edges 6 of -the net in a number corresponding to the number of the tension cords 9 and are dimensioned such that the tension cords 9 pass therethrough as snugly as possible so that insects canno-t enter through the remaining gap.
The net 5 folded in pleated configura-tion like a ja:Lousie, is designed so as to be univeraslly used within a wide range of heig}lts of the building opening. For this purpose, the lower portion 15 ~igure 6) comprising the overlength of the net 5 is in the extended position of -the ne-t 5 preventeci from becom-ing unfolded by limiting stops which urge said '71~
overlen~th in the di~ection of the weight rod 7. These limitin~
s-tops are formed o~ slot-ted punched discs 16 which are shifted on-to the tension cords 9 and held in position by knots 17 of the tension cords 9.
The ~et may be made of a glass fibre fabric having its folding edges fixed by a sizing operation. For this, the glass fibre net is coated with a compound fixing the net meshes, particularly with a liquid s~nthetic plastics material based on vinyl and subsequently fixed by accordion pleating under the action of heat and stea~.
Claims (9)
EXCLUSIVE PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS
FOLLOWS:
1. Insect protection for an opening in a building, said opening being defined by a pair of substantially vertical side boundary surfaces, an upper boundary surface and a lower boundary surface, said protection comprising: a net of elastic weather-resistant and corrosion-resistant material to be placed within said opening and provided with permanent horizontal creases, said net adapted for vertical motion between a first position in which said net is folded at said creases in zig-zag configuration to at least partially expose said opening, and a second substantially stretched position in which said net substantially seals said opening, the width of said net when in non-deformed condition being greater than the width of said opening so that the lateral edges of said net are compressed between said vertical side boundary surfaces; horizontal stabilizing rod fixed to the lower edge of said net, the length of said rod being less than the width of said opening; a pair of traction cords for moving said net upward and downward between said first and second positions, each such cord extending upward through a series of vertically disposed openings in said net, one such opening being situated between each such pair of adjacent creases and the lower end of each such cord being secured to said stabilizing rod; and means for securing in tightly folded configuration the excess length of said net to permit adjustment of the stretched length of said net to the height of said building opening.
2. Insect protection according to claim 1, wherein said openings are elongated slots, the longitudinal axes of which extend vertically when said net is in said stretched position.
3. Insect protection according to claim 1, wherein said securing means comprise slotted discs, through the slots of which said traction cords are passed, said discs being maintained in position by knots in said traction cords.
4. Insect protection according to claim further comprising fastening means for adhering said stabilizing rod to said lower boundary surface of said building opening to secure said net in said stretched position substantily sealing said opening.
5. Insect protection according to claim 1, wherein said net material is glass fibre fabric coated with synthetic plastics material.
6. Insect protection according to claim 4, wherein the fastening means are spring-loaded catches.
7. Insect protection according to claim 4, wherein the fastening means are press studs.
8. A process for producing an insect protection, for an opening in a building, said opening being defined by a pair of substantially vertical side boundary surfaces, an upper boundary surface and a lower boundary surface, said process comprising the steps of: providing a net of elastic weather-resistant and corrosion-resistant material placed within said opening, and providing permanent horizontal creases in said net by coating the net with a sizing compound and subsequently fixing the net in a zig-zag configuration with heat and steam, said net adapted for vertical motion between a first position in which said net is folded at said creases in zig-zag configuration to at least partially expose said opening, and a second substantially stretched position in which said net substantially seals said opening, the width of said net when in non-deformed condition being greater than the width of said opening so that the lateral edges of said net are compressed between said vertical side boundary surfaces; fixing a horizontal stabilizing rod to the lower edge of said net, the length of said rod being less than the width of said opening;
providing a pair of traction cords for moving said net upward and downward between said first and second positions, each such cord extending upward through a series of vertically disposed openings in said net, one such opening being situated between each such pair of adjacent creases and the lower end of each such cord being secured to said stabilizing rod; and providing means for securing in tightly folded configuration the excess length of said net to permit adjustment of the stretched length of said net to the height of said building opening.
providing a pair of traction cords for moving said net upward and downward between said first and second positions, each such cord extending upward through a series of vertically disposed openings in said net, one such opening being situated between each such pair of adjacent creases and the lower end of each such cord being secured to said stabilizing rod; and providing means for securing in tightly folded configuration the excess length of said net to permit adjustment of the stretched length of said net to the height of said building opening.
9. A process according to claim 8, wherein the net is coated with a vinyl based liquid synthetic plastics material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000403910A CA1186178A (en) | 1982-05-27 | 1982-05-27 | Insect protection for openings of buildings and process for manufacturing this insect protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000403910A CA1186178A (en) | 1982-05-27 | 1982-05-27 | Insect protection for openings of buildings and process for manufacturing this insect protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1186178A true CA1186178A (en) | 1985-04-30 |
Family
ID=4122881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000403910A Expired CA1186178A (en) | 1982-05-27 | 1982-05-27 | Insect protection for openings of buildings and process for manufacturing this insect protection |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1186178A (en) |
-
1982
- 1982-05-27 CA CA000403910A patent/CA1186178A/en not_active Expired
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