CA1036325A - Clamping ring having a closure member made of synthetic plastics material - Google Patents
Clamping ring having a closure member made of synthetic plastics materialInfo
- Publication number
- CA1036325A CA1036325A CA206,539A CA206539A CA1036325A CA 1036325 A CA1036325 A CA 1036325A CA 206539 A CA206539 A CA 206539A CA 1036325 A CA1036325 A CA 1036325A
- Authority
- CA
- Canada
- Prior art keywords
- tongue
- clamping strap
- side walls
- extending
- bridge elements
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D63/00—Flexible elongated elements, e.g. straps, for bundling or supporting articles
- B65D63/10—Non-metallic straps, tapes, or bands; Filamentary elements, e.g. strings, threads or wires; Joints between ends thereof
- B65D63/1018—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like
- B65D63/1027—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like the integral securing member being formed as a female and male locking member, e.g. locking head and locking teeth, or the like
- B65D63/1063—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like the integral securing member being formed as a female and male locking member, e.g. locking head and locking teeth, or the like the female locking member being provided with at least one plastic barb
- B65D63/1081—Joints produced by application of integral securing members, e.g. buckles, wedges, tongue and slot, locking head and teeth or the like the integral securing member being formed as a female and male locking member, e.g. locking head and locking teeth, or the like the female locking member being provided with at least one plastic barb with barbs situated on opposite sides of, or concentrically in, the female locking member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/14—Bale and package ties, hose clamps
- Y10T24/1498—Plastic band
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Closures For Containers (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The specification describes a unitary plastic clamping strap having an elongated body portion with a head molded at one end thereof and a tongue formed at the other end with stop latches on its edges adapted to locking engage saw teeth formed in a longitudinally extending channel in the bead.
The head is comprised of a pair of transversely spaced side walls which are interconnected by two sets of transversely extending longitudinally spaced bridge elements spaced from one another in a normal direction. The saw teeth are formed on each side wall with a saw tooth disposed adjacent or associated with each bridge element. The bridge elements of the sets are formed so as not to overlap with one another in the normal direction to simplify manufacturing procedures of the strap.
The specification describes a unitary plastic clamping strap having an elongated body portion with a head molded at one end thereof and a tongue formed at the other end with stop latches on its edges adapted to locking engage saw teeth formed in a longitudinally extending channel in the bead.
The head is comprised of a pair of transversely spaced side walls which are interconnected by two sets of transversely extending longitudinally spaced bridge elements spaced from one another in a normal direction. The saw teeth are formed on each side wall with a saw tooth disposed adjacent or associated with each bridge element. The bridge elements of the sets are formed so as not to overlap with one another in the normal direction to simplify manufacturing procedures of the strap.
Description
~036325 This invention relates to a clamping device for use in holding two members together and, particularly, to a device -for clamping a lid to a container.
The invention is intended to simplify the manufacture of devices of this nature while providing a simple and in-expensive detachable or non-detachable device capable of supplying relatively large forces to the members to be clamped.
The present invention may be broadly described as a unitary plastic clamping strap, comprising: a head molded at one end thereof, a tongue at the other end thereof having stop latches disposed on the edges of the tongue, an elongated body portion interconnecting the head and the tongue, the head having a pair of transversely spaced side walls extending in a normal direction with respect to the body portion, a first set of transversely extending, spaced bridge elements interconnecting the side walls, a second set of transversely extending, spaced ~ :
bridge elements interconnecting the side walls, the second set being spaced from the first set in the normal direction and being flush with the body portion, the bridge elements of the sets being formed so as not to overlap one another in the normal direction, the side walls and the first and second sets of bridge elements defining a longitudinally extending channel for receiving the tongue, channel saw teeth formed on each side ~
wall in the channel extending in a normal direction, a channel -saw tooth being disposed adjacent each bridge element of each ` set, the channel saw teeth and the tongue stop latches being adapted for locking interconnection with one another when the -tongue is inserted into the channel. ;~
` These and other features of the invention will become clear in the following description of the preferred embodiment of the invention where reference is made to the appended drawings wherein:
Figure 1 is an elevational view partially in section of the clamping device;
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. ~, . . .
Figurc 2 i~ a top plan vicw of thc locking mcans;
Fi~urc 3 is a hottom plan view of the locking means;
Figure 4 i8 a side view of the clamping device;
Figure 5 is a view of the tongue portion showing the locking barbs;
Figure 6 is a perspective view of the clamping device in engagement with a lid and container; and Figure 7 is a view showing the manner in which the device may ~e released.
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Wi~h reference to Figure 1, numeral 1 designates a clamping body having a locking means ~ and a tongue portion
The invention is intended to simplify the manufacture of devices of this nature while providing a simple and in-expensive detachable or non-detachable device capable of supplying relatively large forces to the members to be clamped.
The present invention may be broadly described as a unitary plastic clamping strap, comprising: a head molded at one end thereof, a tongue at the other end thereof having stop latches disposed on the edges of the tongue, an elongated body portion interconnecting the head and the tongue, the head having a pair of transversely spaced side walls extending in a normal direction with respect to the body portion, a first set of transversely extending, spaced bridge elements interconnecting the side walls, a second set of transversely extending, spaced ~ :
bridge elements interconnecting the side walls, the second set being spaced from the first set in the normal direction and being flush with the body portion, the bridge elements of the sets being formed so as not to overlap one another in the normal direction, the side walls and the first and second sets of bridge elements defining a longitudinally extending channel for receiving the tongue, channel saw teeth formed on each side ~
wall in the channel extending in a normal direction, a channel -saw tooth being disposed adjacent each bridge element of each ` set, the channel saw teeth and the tongue stop latches being adapted for locking interconnection with one another when the -tongue is inserted into the channel. ;~
` These and other features of the invention will become clear in the following description of the preferred embodiment of the invention where reference is made to the appended drawings wherein:
Figure 1 is an elevational view partially in section of the clamping device;
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. ~, . . .
Figurc 2 i~ a top plan vicw of thc locking mcans;
Fi~urc 3 is a hottom plan view of the locking means;
Figure 4 i8 a side view of the clamping device;
Figure 5 is a view of the tongue portion showing the locking barbs;
Figure 6 is a perspective view of the clamping device in engagement with a lid and container; and Figure 7 is a view showing the manner in which the device may ~e released.
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Wi~h reference to Figure 1, numeral 1 designates a clamping body having a locking means ~ and a tongue portion
2. The tongue portion extends from one end of the body portion and is formed with barbs or teeth 3 adapted for engagement in the locking means 4.
The body portion 1 is an elongated member having a U-shaped cross-section defined by a pair of spaced walls 11 and a bridge wall member 12. The space defined by walls 11 and 12 define a rim or projection receiving space 21 into which the rim or projection of a container and its lid are inserted prior to clamping as will become apparent in due course. For - -increased stiffness of body portion 1, a stiffening rib 10 ex-tending longitudinally of body 1 is provided. The device is preferably formed of a thermoplastic injection mouldable synthetic material for resiliency and strength.
Locking means 4 will now be described. It is provided with first and second sèts of spaced bridge elements 6 and 7, respectively, spaced from one another in order ~o provide a tongue receiving space 23 (Figure 4) which has a height 26 only slightly larger than the thickness 25 of the tongue 2.
The first and second sets of bridge elements 6 and 7 extend transversely of the longitudinal axis 14 of the body 1 ~-~
and are connected at Lheir ends to a pair of s~aced depending walis 5which for all intents and purposes are extensions of spaced walls 11. The upper surface 19 of elements 7 are flush with upper surface 22 of wall 12 as shown in Figure 1. As further shown in Figure 1, each element of one set is positioned between two bridge elements of the other set except for the elements at the ends of the locking means 4.
Walls 5 are formed with locking projections 8 and 9 -" lr/
.
. . ~ . .~ .
in the tongue receiving space 23. Projections 8 are positioned along wall 5 and immediately below ~Figure 1) each element 6, whereas ,each projection 9 is positioned immediately above an element 7. All of the pro~ections are formed with camming surfaces 34 and locking surfaces 35. Surfaces 35 are substantial-ly at right angles to the longitudinal axis of body 1 and are adapted to lockingly engage surfaces 13 of barbs 3 which will ~ , -be described below.
Projections 9 may be extended downwardly ~Figure 1) ~ ~ , into the rim receiving space 21 to permit smoother introduction of the rim into the space while also tending to reduce frictional resistance during insertion thereof. As shown in Figure 3, the portions of projections 9 in space 21 are designated by numeral 24 and are arcuate in shape.
The tongue portion 2 of the device will now be des-cribed with reference to Figures 1 and 5. Tongue 2 is fixed ;or connected to the body 1, as shown in Figure 1, with its low~r or bottom surface 28 substantially flush or level with the upper surface 22 of bridge wall 12. The tongue thickness 25, as previously mentioned, is slightly less than the height 26 of the tongue receiving space 23. Barbs 3 are inclined at an acute angle to the longitudinal axis 14 of the device and positioned along the side edges of the tongue. Each barb is formed with a locking surface 13 adapted for locking engagement wit~ surface 35 of the projections 8 or 9 of locking means 4.
Locking surfaces 13, as with locking surfaces 35, are substantial-ly at right angles to the axis 14 of the device.
With reference to Figures 6 and 7, the method of use and operation will now be described. Both lid 15 and container 16 are each provided with a rim or projection which are introduced lr//~
~- . , .
into the rim receiving space 21 by wrapping the device around the rims. The end of tongue 2 is then introduced tangentially into the tongue receiving space 23 in the direction of arrows 30 and 32 and inserted therethrough until shoulder 27 of body 1 abuttingly engages the end face of the locking means 4 and the locking surfaces 13 of each barb 3 engages a locking surface 35 of a projection 8 or 9. If the length of the body and lock- -ing means together is less than the circumference of the con-tainér, the device will be subjected to tensile forces which will be transmitted to the lid 15 and container 16 as a radial compressive force. The direction of this force is indicated by arrow 31 in Figure 1. Thus, it can be seen that in the manner just described, the device clamps and holds the lid 15 to the container 16. It will be understood that the device is not -limited to holding a lid to a container but,rather, may be used to hold any two or more members in the manner described.
From the oregoing description, it will be appreciated that the device is of non-detachable form. The device may be converted to a detachable form by cutting ~he locking means 4 along line a-b as shown in Figure 6, using a knife 38. Thus, the set of bridge elements 6 may be pivoted along line c-d and by pulling the tongue in the direction of arrow 29 in Figure 7, the tongue will come out of locking engagement with the locking means. Obviously, if the tongue is not pulled, the tensile force to which the device is subjected while in the locked position, will serve to maintain the device in that position.
The device may be formed in a two part injection mould, doing so without the use of side slides. With this proCedure, a portion of barbs 3 and a set of bridge elements may be formed by the upper half of the mould while the remainder of the device is formed by the lower half of the mould. The two halves are inter-.
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. .
.
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~nj~t~on connected during the ig~ib~ procedure. In this manner no overlapping occurs and, thus, no lateral i~nition is necessary.
In the same ignition process, the side parts of the closure and the device are also produced.
:' - :.
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The body portion 1 is an elongated member having a U-shaped cross-section defined by a pair of spaced walls 11 and a bridge wall member 12. The space defined by walls 11 and 12 define a rim or projection receiving space 21 into which the rim or projection of a container and its lid are inserted prior to clamping as will become apparent in due course. For - -increased stiffness of body portion 1, a stiffening rib 10 ex-tending longitudinally of body 1 is provided. The device is preferably formed of a thermoplastic injection mouldable synthetic material for resiliency and strength.
Locking means 4 will now be described. It is provided with first and second sèts of spaced bridge elements 6 and 7, respectively, spaced from one another in order ~o provide a tongue receiving space 23 (Figure 4) which has a height 26 only slightly larger than the thickness 25 of the tongue 2.
The first and second sets of bridge elements 6 and 7 extend transversely of the longitudinal axis 14 of the body 1 ~-~
and are connected at Lheir ends to a pair of s~aced depending walis 5which for all intents and purposes are extensions of spaced walls 11. The upper surface 19 of elements 7 are flush with upper surface 22 of wall 12 as shown in Figure 1. As further shown in Figure 1, each element of one set is positioned between two bridge elements of the other set except for the elements at the ends of the locking means 4.
Walls 5 are formed with locking projections 8 and 9 -" lr/
.
. . ~ . .~ .
in the tongue receiving space 23. Projections 8 are positioned along wall 5 and immediately below ~Figure 1) each element 6, whereas ,each projection 9 is positioned immediately above an element 7. All of the pro~ections are formed with camming surfaces 34 and locking surfaces 35. Surfaces 35 are substantial-ly at right angles to the longitudinal axis of body 1 and are adapted to lockingly engage surfaces 13 of barbs 3 which will ~ , -be described below.
Projections 9 may be extended downwardly ~Figure 1) ~ ~ , into the rim receiving space 21 to permit smoother introduction of the rim into the space while also tending to reduce frictional resistance during insertion thereof. As shown in Figure 3, the portions of projections 9 in space 21 are designated by numeral 24 and are arcuate in shape.
The tongue portion 2 of the device will now be des-cribed with reference to Figures 1 and 5. Tongue 2 is fixed ;or connected to the body 1, as shown in Figure 1, with its low~r or bottom surface 28 substantially flush or level with the upper surface 22 of bridge wall 12. The tongue thickness 25, as previously mentioned, is slightly less than the height 26 of the tongue receiving space 23. Barbs 3 are inclined at an acute angle to the longitudinal axis 14 of the device and positioned along the side edges of the tongue. Each barb is formed with a locking surface 13 adapted for locking engagement wit~ surface 35 of the projections 8 or 9 of locking means 4.
Locking surfaces 13, as with locking surfaces 35, are substantial-ly at right angles to the axis 14 of the device.
With reference to Figures 6 and 7, the method of use and operation will now be described. Both lid 15 and container 16 are each provided with a rim or projection which are introduced lr//~
~- . , .
into the rim receiving space 21 by wrapping the device around the rims. The end of tongue 2 is then introduced tangentially into the tongue receiving space 23 in the direction of arrows 30 and 32 and inserted therethrough until shoulder 27 of body 1 abuttingly engages the end face of the locking means 4 and the locking surfaces 13 of each barb 3 engages a locking surface 35 of a projection 8 or 9. If the length of the body and lock- -ing means together is less than the circumference of the con-tainér, the device will be subjected to tensile forces which will be transmitted to the lid 15 and container 16 as a radial compressive force. The direction of this force is indicated by arrow 31 in Figure 1. Thus, it can be seen that in the manner just described, the device clamps and holds the lid 15 to the container 16. It will be understood that the device is not -limited to holding a lid to a container but,rather, may be used to hold any two or more members in the manner described.
From the oregoing description, it will be appreciated that the device is of non-detachable form. The device may be converted to a detachable form by cutting ~he locking means 4 along line a-b as shown in Figure 6, using a knife 38. Thus, the set of bridge elements 6 may be pivoted along line c-d and by pulling the tongue in the direction of arrow 29 in Figure 7, the tongue will come out of locking engagement with the locking means. Obviously, if the tongue is not pulled, the tensile force to which the device is subjected while in the locked position, will serve to maintain the device in that position.
The device may be formed in a two part injection mould, doing so without the use of side slides. With this proCedure, a portion of barbs 3 and a set of bridge elements may be formed by the upper half of the mould while the remainder of the device is formed by the lower half of the mould. The two halves are inter-.
lr/~-..
. .
.
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~nj~t~on connected during the ig~ib~ procedure. In this manner no overlapping occurs and, thus, no lateral i~nition is necessary.
In the same ignition process, the side parts of the closure and the device are also produced.
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Claims (12)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A unitary plastic clamping strap, comprising:
a head molded at one end thereof, a tongue at the other end thereof having stop latches disposed on the edges of said tongue, an elongated body portion interconnecting said head and said tongue, said head having a pair of transversely spaced side walls extending in a normal direction with respect to said body portion, a first set of transversely extending, spaced bridge elements interconnecting said side walls, a second set of transversely extending, spaced bridge elements inter-connecting said side walls, said second set being spaced from said first set in said normal direction and being flush with said body portion, the bridge elements of said sets being formed so as not to overlap one another in said normal direction, said side walls and said first and second sets of bridge elements defining a longitudinally extending channel for receiving said tongue, channel saw teeth formed on each said side wall in said channel extending in a normal direction, a channel saw tooth being disposed adjacent each bridge element of each said set, said channel saw teeth and said tongue stop latches being adapted for locking interconnection with one another when said tongue is inserted into said channel.
a head molded at one end thereof, a tongue at the other end thereof having stop latches disposed on the edges of said tongue, an elongated body portion interconnecting said head and said tongue, said head having a pair of transversely spaced side walls extending in a normal direction with respect to said body portion, a first set of transversely extending, spaced bridge elements interconnecting said side walls, a second set of transversely extending, spaced bridge elements inter-connecting said side walls, said second set being spaced from said first set in said normal direction and being flush with said body portion, the bridge elements of said sets being formed so as not to overlap one another in said normal direction, said side walls and said first and second sets of bridge elements defining a longitudinally extending channel for receiving said tongue, channel saw teeth formed on each said side wall in said channel extending in a normal direction, a channel saw tooth being disposed adjacent each bridge element of each said set, said channel saw teeth and said tongue stop latches being adapted for locking interconnection with one another when said tongue is inserted into said channel.
2. A clamping strap as defined in Claim 1, wherein said stop latches are formed with one edge extending at an acute angle with respect to the center line of said strap and another edge extending substantially transversely with respect to said center line, said other edge defining a locking face.
3. A clamping strap as defined in Claim 1, said body portion being of U-shaped cross-section with the arms thereof extending in the normal direction opposite to that of said first set of bridge elements.
4. A clamping strap as defined in Claim 3, said side walls being coextensive with the arms of said U-shape, said side walls and arms defining a rim receiving space.
5. A clamping strap as defined in Claim 4, wherein a number of said channel saw teeth extend into said receiving space.
6. A clamping strap as defined in Claim 4, wherein the ends of said side walls remote from said first set of bridge elements and the arms of said U-shape being flush and defining a supporting face, a number of said saw teeth extending as far as said supporting face.
7. A clamping strap as defined in Claim 6, wherein the spacing between said first and second sets of bridge elements corresponding to the thickness of said tongue.
8. A clamping strap as defined in Claim 1, wherein said body portion is formed with a longitudinally extending stiffening rib.
9. A clamping strap as defined in Claim 5, wherein said head is formed of a thermoplastic injection moldable synthetic material.
10. A clamping strap as defined in Claim 1, wherein one end of each element of said second set being detached from one of said side walls to permit removal of said tongue from said channel.
11. A clamping strap as defined in Claim 1, said tongue being offset in a normal direction toward said first set with respect to the base of said U-shape so as to define a stop, the amount of the offset being equal to the thickness of said tongue.
12. A clamping strap as defined in Claim 1, wherein the distance between said side walls is greater than the distance between the arms of said U-shape.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732340360 DE2340360C3 (en) | 1973-08-09 | Tension ring lock made of plastic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1036325A true CA1036325A (en) | 1978-08-15 |
Family
ID=5889324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA206,539A Expired CA1036325A (en) | 1973-08-09 | 1974-08-08 | Clamping ring having a closure member made of synthetic plastics material |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3922758A (en) |
| JP (1) | JPS5748701B2 (en) |
| CA (1) | CA1036325A (en) |
| GB (1) | GB1426670A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2505425C3 (en) * | 1975-02-08 | 1979-04-26 | A. + W. Schobel Ohg, 7211 Lauffen | Tension ring lock |
| US4635411A (en) * | 1980-10-14 | 1987-01-13 | Aaron Kurzen | Construction panel system |
| US4823442A (en) * | 1988-03-07 | 1989-04-25 | Gagnier Products Company | Hose clamp |
| WO2011094509A1 (en) * | 2010-01-29 | 2011-08-04 | Colton Michael R | Fastener to secure rebar rods and associated methods |
| CN103910131A (en) * | 2014-03-07 | 2014-07-09 | 苏州市职业大学 | Seal cover |
| US11883612B2 (en) | 2020-01-17 | 2024-01-30 | Quest Medical, Inc. | Tubing management band |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1804725A (en) * | 1930-02-27 | 1931-05-12 | Ward C Walker | Hose clamp |
| US2900696A (en) * | 1956-02-27 | 1959-08-25 | John H Bacon | Dog collar or the like |
| US2935773A (en) * | 1957-05-14 | 1960-05-10 | Weckesser Ethan | Cable clamps |
| US3147522A (en) * | 1960-06-01 | 1964-09-08 | Schumm Erich | Flexible tie |
| FR1490708A (en) * | 1966-06-23 | 1967-08-04 | Tarwil | Separable element connection device |
| BE746745A (en) * | 1969-03-07 | 1970-08-17 | Legrand Sa | SOFT FIXING COLLAR |
| US3748696A (en) * | 1972-01-19 | 1973-07-31 | M Martin | Fastener |
-
1974
- 1974-07-30 GB GB3354874A patent/GB1426670A/en not_active Expired
- 1974-08-06 US US495289A patent/US3922758A/en not_active Expired - Lifetime
- 1974-08-08 CA CA206,539A patent/CA1036325A/en not_active Expired
- 1974-08-09 JP JP49091918A patent/JPS5748701B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5748701B2 (en) | 1982-10-18 |
| GB1426670A (en) | 1976-03-03 |
| JPS5072062A (en) | 1975-06-14 |
| US3922758A (en) | 1975-12-02 |
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