CA1179236A - Swimming pool cover removal and storage system - Google Patents
Swimming pool cover removal and storage systemInfo
- Publication number
- CA1179236A CA1179236A CA000419493A CA419493A CA1179236A CA 1179236 A CA1179236 A CA 1179236A CA 000419493 A CA000419493 A CA 000419493A CA 419493 A CA419493 A CA 419493A CA 1179236 A CA1179236 A CA 1179236A
- Authority
- CA
- Canada
- Prior art keywords
- pool
- shaped members
- pole
- shaped
- sides
- 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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- Toys (AREA)
Abstract
ABSTRACT
An apparatus and method for removing and storing a swimming pool cover from an above-ground level pool. The apparatus includes a pair of pedestals disposed at the edge of the pool and diametrically opposed to each other. A pair of U-shaped members are provided, each of the U-shaped members being rotatably mounted on one of the pedestals. A tube member having hand wheels mounted at each end thereof is disposed in the U-shaped members. The swimming pool cover is attached to-the tube member. The sides of the U-shaped members are spaced to permit the tube member to rotate therein. In operation, one of the hand wheels is first rotated to roll or wind the cover upon the pole member.
Then one end of the pole member is lifted to clear its U-shaped member and the freed end is thence carried around the periphery of the pool to a predetermined location where a third U-shaped member or hook is provided. The freed end is rested in the third U-shaped member or hook. Then the other end of the pole member is lifted out of its U-shaped member and thence carried to and laid in a fourth U-shaped member or hook to store the pool cover and make the pool available for use.
An apparatus and method for removing and storing a swimming pool cover from an above-ground level pool. The apparatus includes a pair of pedestals disposed at the edge of the pool and diametrically opposed to each other. A pair of U-shaped members are provided, each of the U-shaped members being rotatably mounted on one of the pedestals. A tube member having hand wheels mounted at each end thereof is disposed in the U-shaped members. The swimming pool cover is attached to-the tube member. The sides of the U-shaped members are spaced to permit the tube member to rotate therein. In operation, one of the hand wheels is first rotated to roll or wind the cover upon the pole member.
Then one end of the pole member is lifted to clear its U-shaped member and the freed end is thence carried around the periphery of the pool to a predetermined location where a third U-shaped member or hook is provided. The freed end is rested in the third U-shaped member or hook. Then the other end of the pole member is lifted out of its U-shaped member and thence carried to and laid in a fourth U-shaped member or hook to store the pool cover and make the pool available for use.
Description
il79236 SWIMMING POOL COVER REMOVAL AND STORAGE SYSTEM
BACKGROUND OF THE INVENTION
This invention relates to swimming pool cover removal and storage systems and, in particular, to such systems for use with above-ground pools.
Swimming pool cover removal and storage systems are well known in the art. Such systems are used to remove and store a thermal swimming pool cover or blanket to permit the pool to be used and to easily replace the cover after the pool has been used to help keep it at a comfortable temperature. .
Exemplary prior art pool cover removal and storage systems are disclosed in U.S. Patent 4,328,930 to Kalendovsky and U.S. Patent 4,324,370 to Guard et al.
The prior art systems have been well adapted for use with permanently installed in-ground pools. The prior art systems are also relatively expensive to manufacture which has quite expectedly restricted their use to the conventional (and relatively expensive) in-ground pool.
1~79Z36 However~ there e~ists a need for an easily manufactured and installed pool cover removal and storage system for use with above-ground pools. Due to the comple::ity and cost o~ the prior art systems~ they do not fulfill this need.
In the prior art~ pool covers are typically merely floated on the surface of above-yround pools~ if a cover is used at all. ~emoval and storage systems are typically not used due to their high cost compared to the cost of the above-ground pool. Howeverj a thermal olanket or cover should be ~sed with above-ground pool to help maintain it at a comfortable temperature and to reduce the cost of heating same. Indeed, a thermal or insulating blan~et or cover can be even more important for an above-ground pool than an in-ground pool due to the greater propensity for heat to escape througb the sides of an above-ground pool compared to an in-ground pool.
SUMMAkY OF THE INvENTION
The swimming pool cover removal and storage system of the present invention is easily and ine~:pensively manufactured and~ moreover~ is easy to install.
In accordance with the invention~ a pair of ~upport units are provided for mounting at the edge or lip of an ~7S236 above-ground pool and at diametrically opposed positions.
Each support unit includes a pedestal mounted on the pool and an U-shaped bracket rotatably received therein. ~ pole unit i 5 carried by the U-shaped members and may rotate therein when handwheels at either end thereof are rotated.
The pool cover i 5 attached to the pole unit and is ~Jound upon the pole unit when rotated~ Additional U-shaped members or hooks are provided in the vicinity of the pool for storage of the pool cover after it has been rolled or ~Jound upon the pole unit. The pole unit may be carried~ one end at a time~ from the U-shaped member at the edge of the pool to the hook for storage purposes. In this operation, the opposite U-shaped member rctates to accomodate the translation of the tube to the storage area. These steps are reversed in order to return the cover to the pool.
Bh'IEF DESC~'IFTION OF THE D~WINGS
Figure 1 is a view in perspective of an above-ground pool employing the present invention;
Figure ~ is an e~.ploded~ perspective view of a support unit and associated handwheel !
Figure 3 depicts the handwheeli Figures 4 and ~ are elevational views of the handwheel and associated pedestals;
Figure 6 is a sectional view through the poles of the pole 11~2316 unit; and Figure 7 is a plan view of the pool and the pool cover removal and storage system showing its in-use and storage configurations.
DETAILED DESCRIPJION
Turning first to Figure 1~ there is depicted a perspective view of an above-ground 5Wi mming pool 1 equipped with a swimming pool cover removal and storage system in accordance with the present invention. ~bove-ground puols are typically ten to 24 feet in diameter and three to five feet in depth. In order to keep the pool at a comfortable swimming temperature~ it should be provided with a thermal or insulating blan~et or cover ~ which floats on the surface of the water. The cover typically has many small air pockets formed in it which not only cause the cover to float on water, but also provide a reasonable degree of thermal insulation. The cover may be translucent to aid heating of the water in the pool by sunlight falling thereon.
The pool cover removal and storage system includes a pair of support units 10, which are preferably mounted at diametrically opposed positions at the edge of the pool and a pole unit 20 to which the cover 2 is preferably releasably attached. The pole unit 20 includes a pair of handwheel 5 21 which are intended to be rotated by hand~ for e::ample! to roll the cover onto the pole unit ~0 when it i5 desired to store the cover and make use of the pool.
Support units 10 are more clearly shown in Figure 2 where one is depicted in an e::ploded perspective view along with an associated handwheel 21. Each support unit 10 includes a pedestal 11 which is preferably releasably attached to lip or edge 3 (see Fig. 1~ of the pool~ for example~ by means of clips 13. Clips 13 may be attached to the pool 1 by any convenient means.
Pedestal 11 includes an upright sleeve 12. Each unit 10 also includes an U-shaped member 15 which has a pair of spaced sides 16 and a downwardly directed cylindrical member 17 which is si~ed to be rotatably received in sleeve 12 of pedestal 11. Pedestal 11 and U-shaped member 15 both preferably have coaxially arranged aperatures 14~ lB therein whose function subsequentially will be described.
For ease of manufacture by molding~ handwheel 21 may be formed of two pieces as shown in Figure ~. The wheel grip piece 22 and the cylinder piece 23 are then joined together after molding~ for example~ by means of a fastener 24. As can be seen by reference to Figure 3~ when joined~ the two pieces define a cylinder 25 with spaced apart first and ~'79236 second flanges 26~ 27.
As is best seen in Figures 4 and 5~ the diameter of cylinder 25 cooperates with the spacing of sides 16 (as well as the radius of the trough) of U-shaped member 15 while the spacing of flanges ~6~ 27 cooperates with width of sides 16 to (1~ fi~: the a~:ial position of pole unit 20 with respect to support units 1~ while permitting free rotation of pole unit 20 in the U-shaped members 15 of support units 10 and
BACKGROUND OF THE INVENTION
This invention relates to swimming pool cover removal and storage systems and, in particular, to such systems for use with above-ground pools.
Swimming pool cover removal and storage systems are well known in the art. Such systems are used to remove and store a thermal swimming pool cover or blanket to permit the pool to be used and to easily replace the cover after the pool has been used to help keep it at a comfortable temperature. .
Exemplary prior art pool cover removal and storage systems are disclosed in U.S. Patent 4,328,930 to Kalendovsky and U.S. Patent 4,324,370 to Guard et al.
The prior art systems have been well adapted for use with permanently installed in-ground pools. The prior art systems are also relatively expensive to manufacture which has quite expectedly restricted their use to the conventional (and relatively expensive) in-ground pool.
1~79Z36 However~ there e~ists a need for an easily manufactured and installed pool cover removal and storage system for use with above-ground pools. Due to the comple::ity and cost o~ the prior art systems~ they do not fulfill this need.
In the prior art~ pool covers are typically merely floated on the surface of above-yround pools~ if a cover is used at all. ~emoval and storage systems are typically not used due to their high cost compared to the cost of the above-ground pool. Howeverj a thermal olanket or cover should be ~sed with above-ground pool to help maintain it at a comfortable temperature and to reduce the cost of heating same. Indeed, a thermal or insulating blan~et or cover can be even more important for an above-ground pool than an in-ground pool due to the greater propensity for heat to escape througb the sides of an above-ground pool compared to an in-ground pool.
SUMMAkY OF THE INvENTION
The swimming pool cover removal and storage system of the present invention is easily and ine~:pensively manufactured and~ moreover~ is easy to install.
In accordance with the invention~ a pair of ~upport units are provided for mounting at the edge or lip of an ~7S236 above-ground pool and at diametrically opposed positions.
Each support unit includes a pedestal mounted on the pool and an U-shaped bracket rotatably received therein. ~ pole unit i 5 carried by the U-shaped members and may rotate therein when handwheels at either end thereof are rotated.
The pool cover i 5 attached to the pole unit and is ~Jound upon the pole unit when rotated~ Additional U-shaped members or hooks are provided in the vicinity of the pool for storage of the pool cover after it has been rolled or ~Jound upon the pole unit. The pole unit may be carried~ one end at a time~ from the U-shaped member at the edge of the pool to the hook for storage purposes. In this operation, the opposite U-shaped member rctates to accomodate the translation of the tube to the storage area. These steps are reversed in order to return the cover to the pool.
Bh'IEF DESC~'IFTION OF THE D~WINGS
Figure 1 is a view in perspective of an above-ground pool employing the present invention;
Figure ~ is an e~.ploded~ perspective view of a support unit and associated handwheel !
Figure 3 depicts the handwheeli Figures 4 and ~ are elevational views of the handwheel and associated pedestals;
Figure 6 is a sectional view through the poles of the pole 11~2316 unit; and Figure 7 is a plan view of the pool and the pool cover removal and storage system showing its in-use and storage configurations.
DETAILED DESCRIPJION
Turning first to Figure 1~ there is depicted a perspective view of an above-ground 5Wi mming pool 1 equipped with a swimming pool cover removal and storage system in accordance with the present invention. ~bove-ground puols are typically ten to 24 feet in diameter and three to five feet in depth. In order to keep the pool at a comfortable swimming temperature~ it should be provided with a thermal or insulating blan~et or cover ~ which floats on the surface of the water. The cover typically has many small air pockets formed in it which not only cause the cover to float on water, but also provide a reasonable degree of thermal insulation. The cover may be translucent to aid heating of the water in the pool by sunlight falling thereon.
The pool cover removal and storage system includes a pair of support units 10, which are preferably mounted at diametrically opposed positions at the edge of the pool and a pole unit 20 to which the cover 2 is preferably releasably attached. The pole unit 20 includes a pair of handwheel 5 21 which are intended to be rotated by hand~ for e::ample! to roll the cover onto the pole unit ~0 when it i5 desired to store the cover and make use of the pool.
Support units 10 are more clearly shown in Figure 2 where one is depicted in an e::ploded perspective view along with an associated handwheel 21. Each support unit 10 includes a pedestal 11 which is preferably releasably attached to lip or edge 3 (see Fig. 1~ of the pool~ for example~ by means of clips 13. Clips 13 may be attached to the pool 1 by any convenient means.
Pedestal 11 includes an upright sleeve 12. Each unit 10 also includes an U-shaped member 15 which has a pair of spaced sides 16 and a downwardly directed cylindrical member 17 which is si~ed to be rotatably received in sleeve 12 of pedestal 11. Pedestal 11 and U-shaped member 15 both preferably have coaxially arranged aperatures 14~ lB therein whose function subsequentially will be described.
For ease of manufacture by molding~ handwheel 21 may be formed of two pieces as shown in Figure ~. The wheel grip piece 22 and the cylinder piece 23 are then joined together after molding~ for example~ by means of a fastener 24. As can be seen by reference to Figure 3~ when joined~ the two pieces define a cylinder 25 with spaced apart first and ~'79236 second flanges 26~ 27.
As is best seen in Figures 4 and 5~ the diameter of cylinder 25 cooperates with the spacing of sides 16 (as well as the radius of the trough) of U-shaped member 15 while the spacing of flanges ~6~ 27 cooperates with width of sides 16 to (1~ fi~: the a~:ial position of pole unit 20 with respect to support units 1~ while permitting free rotation of pole unit 20 in the U-shaped members 15 of support units 10 and
(2) permit the pole unit 20 to be eacily withdrawn from the support unit 10~
Pole unit 20 includes a pole 28~ and preferably a pair of telescopically arranged poles 28a and 28b, the free ends of which are attached to and received in the cylinder pieces 23 of handwheels ~1. Attachment between cylinder pieces 23 and poles ~8a~ 28b is preferably achieved by means of self-tapping screws (not shown).
Figure 6 shows the telescoping poles 28a~ 28b in cross section. The inner pole 28a is preferably provided with a plurality of protuberances 41 while the outer pole 28b is preferably provided with a plurality of inwardly directed ridges 4~. In one relative rotational position~ the inner and outer poles are free to telescopically move with respect to each other. In another rotational position~ the ~7~6 protuberances 41 and ridges 4~ engage and lock the poles 28a~ ~8b from further rotational or a~ial movement with respect to each other.
If further or atiditional secureme~t between poles ?8a~ ~b is desired or nece6sary~ then appropriate loc~sing devices~
such as self-tapping screws~ may be employed between poles ?aa~ ~8b.
The capability to telescope and lock the telescoped poles 28a~ 28b together is highly desireable as above-ground pools come in many si~es and this feature permits the pool cover removal and storage system to accomodate a range of pool si~es. ~s might be anticipated~ this reduces the cost of manufacturing and stocking the system. It also makes the system easy to install by the owner of the pool.
The operation of the pool cover removal and storage system is now described with particular reference to Figure 7 which is a plan view of the pool 1 of Figure 1. To remove the cover 2~ one of the handwheels ~1 is rotated to wind the cover ? upon the pole unit 20. Thereafter one end of the pole unit ?O is lifted out of its U-shaped member lS and the free end of pole unit ?O i 5 thence carried around the pool 1 to any convenient place at which a third U-shaped member or hook ~0 is disposed to receive and hold the free end. When ~7g2~ti the free end i5 carried around pool 1, the other end remains supported in its U-shaped member 15 as that U-shaped member 15 rotates with respect to pedestal 11. U-shaped member may be mounted on a fence or post in the vlcinity of pool 1 and may be of similar con~truction to member lS~ but needing no cylindrical member 17 and perhaps having a wider spacing between its sides 16.
Then the other end of pole unit ~-~ is raised out of its U-shaped member 15 and carried to another U-shaped member or hook 30. Both hooks ~ are positioned such that pole unit 2C) and the cover 2 thereon are stored out of the way of persons using the pool 1.
The present pool cover removal and storage system may be easily operated by one person. Indeed, at any time during the removal process the person removing and storing cover 2 need only carry one-half the weight of the cover 2, pole~s) ~8 and handwheels 21~ As the pole(s) 28 are preferably formed from drawn aluminum and the pedestals 11~ U-shaped members 15 and handwheel units are preferably formed from injection molded plastic~ the weight lifted by that person may be easily managed. ~lso the cover 2 is easier to remove than removal by hand 5i nce the surface tension which tends to hold the cover 2 to the surface of the water in the pool 1 is rather efficiently overcome by drawing up the cover 1~7923~
_g_ towards pole(s) ~8.
Once the pool cover 2 and pole unit 20 is conveniently stored in the vicinity of the pool, the aperatures 14S 18 in the pedestals and members 15 may be used~ if desired, to receive upright poles (not shown) used to support a volleyball or other game-playing net or device.
The pedestals 11, U-shaped members 15 and hand~Jheels 21 are preferably injection molded high impact stryene plastic having appro~:imately five percent silicon and appropriate ultraviolet inhibitors added thereto. The addition of silicon makes the moving plastic parts essentially self lubricating.
Having described my invention in connection with a particular embodiment~ modification may now suggest itself to those skilled in the art. The invention itself i5 not to be limited to the embodiment described, e~cept as set forth in the appended claims.
Pole unit 20 includes a pole 28~ and preferably a pair of telescopically arranged poles 28a and 28b, the free ends of which are attached to and received in the cylinder pieces 23 of handwheels ~1. Attachment between cylinder pieces 23 and poles ~8a~ 28b is preferably achieved by means of self-tapping screws (not shown).
Figure 6 shows the telescoping poles 28a~ 28b in cross section. The inner pole 28a is preferably provided with a plurality of protuberances 41 while the outer pole 28b is preferably provided with a plurality of inwardly directed ridges 4~. In one relative rotational position~ the inner and outer poles are free to telescopically move with respect to each other. In another rotational position~ the ~7~6 protuberances 41 and ridges 4~ engage and lock the poles 28a~ ~8b from further rotational or a~ial movement with respect to each other.
If further or atiditional secureme~t between poles ?8a~ ~b is desired or nece6sary~ then appropriate loc~sing devices~
such as self-tapping screws~ may be employed between poles ?aa~ ~8b.
The capability to telescope and lock the telescoped poles 28a~ 28b together is highly desireable as above-ground pools come in many si~es and this feature permits the pool cover removal and storage system to accomodate a range of pool si~es. ~s might be anticipated~ this reduces the cost of manufacturing and stocking the system. It also makes the system easy to install by the owner of the pool.
The operation of the pool cover removal and storage system is now described with particular reference to Figure 7 which is a plan view of the pool 1 of Figure 1. To remove the cover 2~ one of the handwheels ~1 is rotated to wind the cover ? upon the pole unit 20. Thereafter one end of the pole unit ?O is lifted out of its U-shaped member lS and the free end of pole unit ?O i 5 thence carried around the pool 1 to any convenient place at which a third U-shaped member or hook ~0 is disposed to receive and hold the free end. When ~7g2~ti the free end i5 carried around pool 1, the other end remains supported in its U-shaped member 15 as that U-shaped member 15 rotates with respect to pedestal 11. U-shaped member may be mounted on a fence or post in the vlcinity of pool 1 and may be of similar con~truction to member lS~ but needing no cylindrical member 17 and perhaps having a wider spacing between its sides 16.
Then the other end of pole unit ~-~ is raised out of its U-shaped member 15 and carried to another U-shaped member or hook 30. Both hooks ~ are positioned such that pole unit 2C) and the cover 2 thereon are stored out of the way of persons using the pool 1.
The present pool cover removal and storage system may be easily operated by one person. Indeed, at any time during the removal process the person removing and storing cover 2 need only carry one-half the weight of the cover 2, pole~s) ~8 and handwheels 21~ As the pole(s) 28 are preferably formed from drawn aluminum and the pedestals 11~ U-shaped members 15 and handwheel units are preferably formed from injection molded plastic~ the weight lifted by that person may be easily managed. ~lso the cover 2 is easier to remove than removal by hand 5i nce the surface tension which tends to hold the cover 2 to the surface of the water in the pool 1 is rather efficiently overcome by drawing up the cover 1~7923~
_g_ towards pole(s) ~8.
Once the pool cover 2 and pole unit 20 is conveniently stored in the vicinity of the pool, the aperatures 14S 18 in the pedestals and members 15 may be used~ if desired, to receive upright poles (not shown) used to support a volleyball or other game-playing net or device.
The pedestals 11, U-shaped members 15 and hand~Jheels 21 are preferably injection molded high impact stryene plastic having appro~:imately five percent silicon and appropriate ultraviolet inhibitors added thereto. The addition of silicon makes the moving plastic parts essentially self lubricating.
Having described my invention in connection with a particular embodiment~ modification may now suggest itself to those skilled in the art. The invention itself i5 not to be limited to the embodiment described, e~cept as set forth in the appended claims.
Claims (8)
1. An apparatus for removing and storing a swimming pool cover from an above-ground level pool, said apparatus comprising:
(a) a pair of pedestals disposed at the edge of the pool and diametrically opposed to each other;
(b) a pair of U-shaped members, each of said U-shaped members being rotatably mounted on one of said pedestals;
(c) a tube member having hand wheels mounted at each end thereof and means for attaching said swimming pool cover thereto;
(d) the sides of said U-shaped members being spaced to rotatably receive said tube member.
(a) a pair of pedestals disposed at the edge of the pool and diametrically opposed to each other;
(b) a pair of U-shaped members, each of said U-shaped members being rotatably mounted on one of said pedestals;
(c) a tube member having hand wheels mounted at each end thereof and means for attaching said swimming pool cover thereto;
(d) the sides of said U-shaped members being spaced to rotatably receive said tube member.
2. The apparatus of claim 1, wherein said tube member comprises a pair of telescoping tubes, said tubes including means for engaging and locking said tubes together.
3. The apparatus of claim 2, wherein said engaging and locking means comprise a plurality of protuberances arranged on the exterior of an inner one of said tubes and a plurality of ridges on the interior of an outer one of said tubes, said protuberances and said ridges engaging each other as one tube is rotated with respect to the other.
4. The apparatus of claim 3 wherein said tubes comprise drawn aluminum tubes.
5. The apparatus of claim 1, wherein said pedestals and said U-shaped members are comprised of styrene and silicon.
6. The apparatus of claim 1, wherein said pedestals comprise an upright cylindrical sleeve and said U-shaped members include a downwardly directed cylindrical member sized to be received in said sleeve, said sleeves and said cylindrical members cooperating to provide bearings permitting rotational movement between said pedestals and said U-shaped members.
7. The apparatus of claim 6, wherein said hand wheels include a wheel grip and and a pole receiving sleeve attached thereto, said pole receiving sleeve including first and second flanges on its outer surface, the region on its outer surface between said flanges being adapted to be received by the sides of each said U-shaped member, said flanges being spaced apart at least as far as the width of the sides of said U-shaped member.
8. A method of removing and storing a swimming pool cover from an above-ground pool comprising the steps of:
(a) rotating a hand grip attached to a pole member which is rotatably received between the sides of a pair of U-shaped members disposed at diametrically opposed sides of the pool until the pool cover, which is attached to said pole member, is wound thereon;
(b) lifting one end of the pole so as to clear the sides of one of the U-shaped members and moving the freed end around the periphery of the pool to a predetermined location and placing the freed end in a third U-shaped member disposed at said predetermined location; and (c) lifting the other end of the pole so as to clear the sides of the other one of the pair of U-shaped members and placing the other end in a fourth U-shaped member.
(a) rotating a hand grip attached to a pole member which is rotatably received between the sides of a pair of U-shaped members disposed at diametrically opposed sides of the pool until the pool cover, which is attached to said pole member, is wound thereon;
(b) lifting one end of the pole so as to clear the sides of one of the U-shaped members and moving the freed end around the periphery of the pool to a predetermined location and placing the freed end in a third U-shaped member disposed at said predetermined location; and (c) lifting the other end of the pole so as to clear the sides of the other one of the pair of U-shaped members and placing the other end in a fourth U-shaped member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44848082A | 1982-12-10 | 1982-12-10 | |
| US448,480 | 1982-12-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1179236A true CA1179236A (en) | 1984-12-11 |
Family
ID=23780471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000419493A Expired CA1179236A (en) | 1982-12-10 | 1983-01-14 | Swimming pool cover removal and storage system |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU1714483A (en) |
| CA (1) | CA1179236A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5606749A (en) * | 1990-05-03 | 1997-03-04 | 2679965 Canada Inc., Vogue Pool Products | Swimming pool cover and roll-up device |
-
1983
- 1983-01-14 CA CA000419493A patent/CA1179236A/en not_active Expired
- 1983-07-21 AU AU17144/83A patent/AU1714483A/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5606749A (en) * | 1990-05-03 | 1997-03-04 | 2679965 Canada Inc., Vogue Pool Products | Swimming pool cover and roll-up device |
Also Published As
| Publication number | Publication date |
|---|---|
| AU1714483A (en) | 1984-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |