CA1321713C - Laminated locking staple - Google Patents
Laminated locking stapleInfo
- Publication number
- CA1321713C CA1321713C CA000573581A CA573581A CA1321713C CA 1321713 C CA1321713 C CA 1321713C CA 000573581 A CA000573581 A CA 000573581A CA 573581 A CA573581 A CA 573581A CA 1321713 C CA1321713 C CA 1321713C
- Authority
- CA
- Canada
- Prior art keywords
- locking means
- shaped elements
- metal
- central portion
- shaped
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members
- F16L37/14—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain
- F16L37/142—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially
- F16L37/144—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially the securing element being U-shaped
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B3/00—Key-type connections; Keys
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
- Y10S411/92—Staple
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Laminated Bodies (AREA)
- Clamps And Clips (AREA)
- Tents Or Canopies (AREA)
- Lubricants (AREA)
- Supports For Pipes And Cables (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A hose coupling or pipe connection (10) has detachable parts (20, 22) which are releasably locked together by two U-shaped cotter pins or locking staples (18) in accordance with the invention, the cotter pins or locking staples being of laminated form and comprising two or more joined-together leaves or plies (26, 28).
A hose coupling or pipe connection (10) has detachable parts (20, 22) which are releasably locked together by two U-shaped cotter pins or locking staples (18) in accordance with the invention, the cotter pins or locking staples being of laminated form and comprising two or more joined-together leaves or plies (26, 28).
Description
~ 2 ~7 ~3 This invention relates to a generally U-shaped laminated cotter pin or locking staple, especially for use in detachable hose couplings or pipe or tube connections.
British Paten-t Mo. 941,545 describes hose or pipe connections and couplings wherein a U-shaped cotter pin is used to hold two parts of the connection or coupling together in a detachable manner. Such an arrangement has the advantage that unsatisfactory connecting means such as screw ~oints or bayonet ~joints wherein a turning or twisting motion is required are completely avoided. This is of particular advantage in mines and other underground workings where hose or pipe connections or couplings are frequently located in inaccessible and inconvenient pIaces.
The present invention is concerned with an improvement in the U-shaped cotter pin described in that prior Patent, and arises out of an emerging market demand for cotter pins or locking staples which can accept the high levels of dynamic loading which are experienced in modern hydraulic installations such as those used in mines.
~Jith this consideration ~in ~mind, the present invention is directed to a generally~ U-shaped laminated cotter pin or locking staple compris1ng ~two or more ~joined-together leaves or plies. The invention also extends to couplings and connections incorporating such a staple.
: .
:
British Paten-t Mo. 941,545 describes hose or pipe connections and couplings wherein a U-shaped cotter pin is used to hold two parts of the connection or coupling together in a detachable manner. Such an arrangement has the advantage that unsatisfactory connecting means such as screw ~oints or bayonet ~joints wherein a turning or twisting motion is required are completely avoided. This is of particular advantage in mines and other underground workings where hose or pipe connections or couplings are frequently located in inaccessible and inconvenient pIaces.
The present invention is concerned with an improvement in the U-shaped cotter pin described in that prior Patent, and arises out of an emerging market demand for cotter pins or locking staples which can accept the high levels of dynamic loading which are experienced in modern hydraulic installations such as those used in mines.
~Jith this consideration ~in ~mind, the present invention is directed to a generally~ U-shaped laminated cotter pin or locking staple compris1ng ~two or more ~joined-together leaves or plies. The invention also extends to couplings and connections incorporating such a staple.
: .
:
- 2 - ~ 713 It is surprising ~rom an engineering point of view that a laminated cotter pin or locking staple of this construction can accept higher levels of dynamic loading than a solid cotter pin or staple of the construction shown in Patent No. 941,545 even i~ the width of the prior staple is increased so as to be, say, twice that of the co-tter pin illustrated in that Patent. It is however a fact that the laminated cotter pin or locking staple with which the present invention is concerned gives substantially better results than a solid cotter pin or locking staple of increased width.
The leaves or plies of the cotter pin or staple can be Joined together - for example by welding - at or near their free ends and/or at the curved intermediate portion of the cotter pin or staple. However, as will be explained below, other ways of joining the leaves or plies together are possible. The benefit of joining the leaves or plies together is that the cotter pin or staple will then be inserted into a hose or pipe connection or coupling as a unit. Thus, if the leaves or plies were not to be joined in this way, it would then make it possible for a mining technician to insert only one ply or leaf into a connection or coupling which could be hazardous under normal operating conditions. Alternatively, he mi~ht insert ~a nail or other unsatisfactory packing element to take the place of a second leaf or ply.
Some examples o~ lamlnated co=ter pins or locking ~ 3 ~ 13i'~7','~3 staples in accordance with the invention are illustrated in the accompanying drawings, in which -Figure 1 is a part-sectional side view through a hose or pipe connection or coupling having detachable parts which are locked together by two IJ-shaped laminated cotter pins or locking staples in accordance with the invention:
Figure 2 is an enlarged perspective view of either one of the two cotter pins or locking staples shown in Figure 1: and Figures 3 - 6 are perspective views similar to Figure 2 of four further forms of cotter pin or locking staple in accordance with the invention.
Figure 1 shows a hose or pipe connection or coupling 10 for use, for example, in mining installations to convey hydraulic fluid under pressure to and from mining equipment. It includes a sleeve 12 having two pairs of circular openings 14 and 16 on either side of a vertical plane passing through the longitudinal axis of the sleeve which receive respective U-shaped cotter pins or locking ~ staples 18 which lock the sleeve on to respective coupling members 20 and 22. For this purpose, the two coupling members 20 and 22 are each provided with an annular groove 24 which tangentially receives portions of the legs of the respective staples 18. Locking of the two coupl1ng members 20 and 22 on to the sleeve 18 is therefore effected by inserting the staples into the respective holes 14 and 16 : and by withdrawing the staples fr,m tbose holes when it is .
.
_ 4 - ~ 3~ 3 desired to cletach the parts of the coupling ~rom each other.
Because of the high levels of dynamic loading which are experienced in modern hydraulic installations, each staple 18 is made of laminated form as shown in Figure 2 so as to comprise two joined-together leaves or plies 26 and 28. These two plies are of exactly the same shape as each other and they are welded together at their free ends 30 and at their curved intermediate portions 32. This means that their opposing surfaces, whilst being in close contact with each other, are Joined at only three spaced~apart points.
Surprising as it may seem, such a oonstruction gives better results from the point of view of resistance to dynamic loading than a single solid staple having the same width as that shown in Figure 2.
Although Figures 2 to 6 each show a staple made ~rom square-sectioned plies substantially any cross-sectional shape for each ply is possible, for example round section or hexagonal section. Furthermore, one of the plies of one staple may have a different cross section from the other ply of that same staple.
Figures 3 to 6 show alternative forms of staple which achieve the same results as that shown ln Figure 2.
Thus, Figure 3 shows-a staple 34 having two plie~ 36 and 38 formed by cutting slits 40 in the two legs of the staple from their ex1;reme ends 42. In this case, there~ore, the two plies 36 and 38 are Joined together over the solid curved centFal section 44 of the staple.
- 5 - ~ 3 Figure 4 illustrates a similar form of staple 46 to that shown in Figure 3 except that the slits 40 start from a point 48 displaced upwardly by a small distance from the extreme ends 42 of the staple. In other words, the two plies 36 and 38 in this construction are joined together both at the central portion 44 of the staple and at`their end portions.
The staple 50 shown in Figure 5 has the plies 36 and 38 separated by a single slit 52 which extends without interruption from a point 54 near the extreme end 56 of one leg right round to a corresponding point 58 displaced from the extreme end 60 of the other leg. This means that the staple 50 has its plies Joined together at the end portions only.
Figure 6 shows a staple 62 made of a single length of metal which is first bent into a U-shape so as to form one ply 64, after which the portions 66 and~ 68 are bent round at 70 and 72 respectively~so as to form a second ply having a welded-together butt joint 74 where the two bent-round portions 66 and 68 meet one another. The two plies of the staple 62 are therefore joined together at the portions 70 and 72.
Although the-various staples shown in the drawings are all provided with just two plies, it is to be understood that staples in accordance with the invent1on can have three or more plies where thia is desired.
Staples in accordance with the invention wlll ~ .
.
'" ','.' ' `' "' , ~ ~ .
.
- 6 - ~ 7~3 normally be made o~ high-quality steel to enable them to withstand the dynamic loading to which they are subjected during normal use of hose or pipe connections or couplings with which they are used. Where it is desirable to prevent rusting or corrosion of the staples, they could o~ course be made of a non-corroding metal or alloy such as stainless steel or bronze.
The leaves or plies of the cotter pin or staple can be Joined together - for example by welding - at or near their free ends and/or at the curved intermediate portion of the cotter pin or staple. However, as will be explained below, other ways of joining the leaves or plies together are possible. The benefit of joining the leaves or plies together is that the cotter pin or staple will then be inserted into a hose or pipe connection or coupling as a unit. Thus, if the leaves or plies were not to be joined in this way, it would then make it possible for a mining technician to insert only one ply or leaf into a connection or coupling which could be hazardous under normal operating conditions. Alternatively, he mi~ht insert ~a nail or other unsatisfactory packing element to take the place of a second leaf or ply.
Some examples o~ lamlnated co=ter pins or locking ~ 3 ~ 13i'~7','~3 staples in accordance with the invention are illustrated in the accompanying drawings, in which -Figure 1 is a part-sectional side view through a hose or pipe connection or coupling having detachable parts which are locked together by two IJ-shaped laminated cotter pins or locking staples in accordance with the invention:
Figure 2 is an enlarged perspective view of either one of the two cotter pins or locking staples shown in Figure 1: and Figures 3 - 6 are perspective views similar to Figure 2 of four further forms of cotter pin or locking staple in accordance with the invention.
Figure 1 shows a hose or pipe connection or coupling 10 for use, for example, in mining installations to convey hydraulic fluid under pressure to and from mining equipment. It includes a sleeve 12 having two pairs of circular openings 14 and 16 on either side of a vertical plane passing through the longitudinal axis of the sleeve which receive respective U-shaped cotter pins or locking ~ staples 18 which lock the sleeve on to respective coupling members 20 and 22. For this purpose, the two coupling members 20 and 22 are each provided with an annular groove 24 which tangentially receives portions of the legs of the respective staples 18. Locking of the two coupl1ng members 20 and 22 on to the sleeve 18 is therefore effected by inserting the staples into the respective holes 14 and 16 : and by withdrawing the staples fr,m tbose holes when it is .
.
_ 4 - ~ 3~ 3 desired to cletach the parts of the coupling ~rom each other.
Because of the high levels of dynamic loading which are experienced in modern hydraulic installations, each staple 18 is made of laminated form as shown in Figure 2 so as to comprise two joined-together leaves or plies 26 and 28. These two plies are of exactly the same shape as each other and they are welded together at their free ends 30 and at their curved intermediate portions 32. This means that their opposing surfaces, whilst being in close contact with each other, are Joined at only three spaced~apart points.
Surprising as it may seem, such a oonstruction gives better results from the point of view of resistance to dynamic loading than a single solid staple having the same width as that shown in Figure 2.
Although Figures 2 to 6 each show a staple made ~rom square-sectioned plies substantially any cross-sectional shape for each ply is possible, for example round section or hexagonal section. Furthermore, one of the plies of one staple may have a different cross section from the other ply of that same staple.
Figures 3 to 6 show alternative forms of staple which achieve the same results as that shown ln Figure 2.
Thus, Figure 3 shows-a staple 34 having two plie~ 36 and 38 formed by cutting slits 40 in the two legs of the staple from their ex1;reme ends 42. In this case, there~ore, the two plies 36 and 38 are Joined together over the solid curved centFal section 44 of the staple.
- 5 - ~ 3 Figure 4 illustrates a similar form of staple 46 to that shown in Figure 3 except that the slits 40 start from a point 48 displaced upwardly by a small distance from the extreme ends 42 of the staple. In other words, the two plies 36 and 38 in this construction are joined together both at the central portion 44 of the staple and at`their end portions.
The staple 50 shown in Figure 5 has the plies 36 and 38 separated by a single slit 52 which extends without interruption from a point 54 near the extreme end 56 of one leg right round to a corresponding point 58 displaced from the extreme end 60 of the other leg. This means that the staple 50 has its plies Joined together at the end portions only.
Figure 6 shows a staple 62 made of a single length of metal which is first bent into a U-shape so as to form one ply 64, after which the portions 66 and~ 68 are bent round at 70 and 72 respectively~so as to form a second ply having a welded-together butt joint 74 where the two bent-round portions 66 and 68 meet one another. The two plies of the staple 62 are therefore joined together at the portions 70 and 72.
Although the-various staples shown in the drawings are all provided with just two plies, it is to be understood that staples in accordance with the invent1on can have three or more plies where thia is desired.
Staples in accordance with the invention wlll ~ .
.
'" ','.' ' `' "' , ~ ~ .
.
- 6 - ~ 7~3 normally be made o~ high-quality steel to enable them to withstand the dynamic loading to which they are subjected during normal use of hose or pipe connections or couplings with which they are used. Where it is desirable to prevent rusting or corrosion of the staples, they could o~ course be made of a non-corroding metal or alloy such as stainless steel or bronze.
Claims (11)
1. A generally U-shaped unitary fluid coupling locking means having two legs with free ends and a curved central portion made of metal and adapted to hold together, in a detachable manner, two parts of a hose coupling, pipe connection or tube connection, the locking means being of rectangular cross-section substantially throughout its length to provide, on both sides of the locking means, flat side surfaces subject, in use, to dynamic loading, wherein said locking means comprises first and second U-shaped elements of rectangular cross-section arranged face-to-face with opposed flat faces of the elements in abutting contact whereby dynamic loading is transmitted through the opposed abutting flat faces from one element to the other, and connection means connecting the two U-shaped elements together in a permanent manner so that they cannot be separated.
2. Locking means according to claim 1, wherein the two U-shaped elements are connected together adjacent their free end portions.
3. Locking means according to claim 1, wherein the two U shaped elements are connected together at the curved central portion of the locking means.
4. Locking means according to claim 1, wherein the two U-shaped elements are of exactly the same shape as each other.
5. Locking means according to claim 1, wherein the two U-shaped elements are each of square cross-section.
6. Locking means according to claim 1, wherein the connection means comprises weld metal.
7. A generally U-shaped fluid coupling locking means having two legs with extreme ends and a curved central portion made from a single piece of metal and adapted to hold together, in a detachable manner, two parts of a hose coupling, pipe connection or tube connection, the locking means being of rectangular cross-section substantially throughout its length to provide, on both sides of the locking means, flat side surfaces subject, in use, to dynamic loading, wherein said locking means is partially divided into first and second U-shaped elements of rectangular cross-section by at least one longitudinally-extending through-slit in the metal of the locking means, said U-shaped elements nonetheless remaining permanently connected to each other by metal which is not slit.
8. Locking means according to claim 7, wherein two slits are formed in the two legs of the locking means, which slits stop short of the curved central portion of the locking means.
9. Locking means according to claim 7, wherein two slits which start from points displaced from the extreme ends of the locking means stop short of the curved central portion of the locking means.
10. Locking means according to claim 7, wherein a single slit extends without interruption from a point near the extreme end of one leg of the locking means around to a corresponding point displaced from the extreme end of the other leg wherein the two U-shaped elements are connected together at their end portions only.
11. A generally U-shaped fluid coupling locking means made from a single piece of metal and adapted to hold together, in a detachable manner, two parts of a hose coupling, pipe connection or tube connection, the locking means being of rectangular cross-section substantially throughout its length to provide on both sides of the locking means, flat side surfaces subject, in use, to dynamic loading, wherein said locking means is made from a single length of metal which is first bent into a U-shape and which then has end portions bent round into two half-U
portions, there being a butt-welded joint where ends of the two half-U portions meet each other.
portions, there being a butt-welded joint where ends of the two half-U portions meet each other.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8718392 | 1987-08-04 | ||
| GB878718392A GB8718392D0 (en) | 1987-08-04 | 1987-08-04 | Laminated cotter pin/locking staple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1321713C true CA1321713C (en) | 1993-08-31 |
Family
ID=10621774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000573581A Expired - Lifetime CA1321713C (en) | 1987-08-04 | 1988-08-02 | Laminated locking staple |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4923350A (en) |
| EP (1) | EP0302674B1 (en) |
| JP (1) | JPH01112097A (en) |
| AT (1) | ATE78573T1 (en) |
| AU (1) | AU613935B2 (en) |
| CA (1) | CA1321713C (en) |
| DE (1) | DE3872974T2 (en) |
| ES (1) | ES2034243T3 (en) |
| GB (1) | GB8718392D0 (en) |
| IN (1) | IN172113B (en) |
| ZA (1) | ZA885693B (en) |
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| EP3854318B1 (en) | 2016-04-12 | 2024-02-14 | Applied Medical Resources Corporation | Surgical stapler having articulation mechanism |
| WO2017180746A1 (en) | 2016-04-12 | 2017-10-19 | Applied Medical Resources Corporation | Surgical stapler having a powered handle |
| DE102017119704B4 (en) * | 2017-08-28 | 2022-11-10 | Norma Germany Gmbh | Line coupling and container herewith |
| US10953518B2 (en) * | 2017-11-16 | 2021-03-23 | Parras Engineering Inc. | Locking system for suspended loads |
| KR102680497B1 (en) | 2018-02-27 | 2024-07-04 | 어플라이드 메디컬 리소시스 코포레이션 | Surgical stapler with electric handle |
| DE202019102927U1 (en) | 2018-06-08 | 2019-05-31 | Vauth-Sagel Holding Gmbh & Co. Kg | Mounting device for quick attachment of a component and furniture with the mounting device |
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| CN112377690B (en) * | 2020-11-11 | 2021-10-08 | 武汉博汇油田工程服务有限公司 | Adopt universal manifold sled of big latus rectum that union connects |
| AU2022208381A1 (en) | 2021-01-14 | 2023-07-06 | Applied Medical Resources Corporation | Surgical stapler having shaft recognition mechanism |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7241954U (en) * | 1974-03-28 | Hemscheidt H Maschinenfabrik | Plug-in coupling for the detachable connection of pipelines | |
| US1983373A (en) * | 1932-01-30 | 1934-12-04 | Hope Webbing Co Inc | Tape fastener |
| US1948462A (en) * | 1933-03-21 | 1934-02-20 | Scovill Manufacturing Co | Panel fastener |
| DE1204894B (en) * | 1961-05-05 | 1965-11-11 | Hemscheidt Maschf Hermann | Device for releasable, sealing connection of especially high pressure lines with one another or with connection points, preferably for underground facilities |
| FR1398823A (en) * | 1964-03-31 | 1965-05-14 | Ct De Rech S De Pont A Mousson | Advanced coupling for line pipes and its components |
| US3527485A (en) * | 1968-07-26 | 1970-09-08 | Btr Industries Ltd | Releasable pipe coupling |
| DE1914465A1 (en) * | 1969-03-21 | 1970-10-01 | Hemscheidt Maschf Hermann | Connecting bracket |
| US3929357A (en) * | 1974-11-13 | 1975-12-30 | Gen Motors Corp | Quick connect coupling with tandem snap rings |
| US4275813A (en) * | 1979-06-04 | 1981-06-30 | United States Surgical Corporation | Coherent surgical staple array |
| US4431218A (en) * | 1982-02-05 | 1984-02-14 | Dayco Corporation | Fluid coupling and method of making same |
| US4433861A (en) * | 1982-02-16 | 1984-02-28 | Stefan Kreczik | Arrangement for connecting two pipe ends |
| US4708558A (en) * | 1986-02-21 | 1987-11-24 | Flexible Steel Lacing Company | Wire fastener |
-
1987
- 1987-08-04 GB GB878718392A patent/GB8718392D0/en active Pending
-
1988
- 1988-07-29 AT AT88307031T patent/ATE78573T1/en not_active IP Right Cessation
- 1988-07-29 EP EP88307031A patent/EP0302674B1/en not_active Expired - Lifetime
- 1988-07-29 DE DE8888307031T patent/DE3872974T2/en not_active Expired - Lifetime
- 1988-07-29 ES ES198888307031T patent/ES2034243T3/en not_active Expired - Lifetime
- 1988-08-01 AU AU20265/88A patent/AU613935B2/en not_active Expired
- 1988-08-02 CA CA000573581A patent/CA1321713C/en not_active Expired - Lifetime
- 1988-08-02 IN IN554/MAS/88A patent/IN172113B/en unknown
- 1988-08-02 US US07/227,339 patent/US4923350A/en not_active Expired - Lifetime
- 1988-08-03 ZA ZA885693A patent/ZA885693B/en unknown
- 1988-08-04 JP JP63195302A patent/JPH01112097A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| ATE78573T1 (en) | 1992-08-15 |
| GB8718392D0 (en) | 1987-09-09 |
| DE3872974T2 (en) | 1993-02-25 |
| IN172113B (en) | 1993-04-10 |
| AU2026588A (en) | 1989-02-09 |
| ES2034243T3 (en) | 1993-04-01 |
| ZA885693B (en) | 1989-04-26 |
| AU613935B2 (en) | 1991-08-15 |
| EP0302674A1 (en) | 1989-02-08 |
| DE3872974D1 (en) | 1992-08-27 |
| EP0302674B1 (en) | 1992-07-22 |
| JPH01112097A (en) | 1989-04-28 |
| US4923350A (en) | 1990-05-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |
Effective date: 20100831 |