CA1230871A - Resilient suspension for conduits - Google Patents
Resilient suspension for conduitsInfo
- Publication number
- CA1230871A CA1230871A CA000462224A CA462224A CA1230871A CA 1230871 A CA1230871 A CA 1230871A CA 000462224 A CA000462224 A CA 000462224A CA 462224 A CA462224 A CA 462224A CA 1230871 A CA1230871 A CA 1230871A
- Authority
- CA
- Canada
- Prior art keywords
- sleeve
- spring
- casing
- tension rod
- suspension
- 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
-
- 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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
- F16L3/205—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs
- F16L3/2053—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction having supporting springs the axis of each spring being parallel with the direction of the movement of the pipe
Abstract
ABSTRACT OF THE DISCLOSURE
A tension rod for the suspension of a conduit has an abutment element threaded thereon for abutment of a spring casing from above or from below. The spring casing contains a compression spring acting between the bottom of the casing and a spring disk secured to the tension rod. An internal sleeve extends from the bottom of the casing and prevents complete compression of the spring. The threaded on abutment element adjustable limits decompression of the spring. Through supplementary structure the tension rod can be locked to the casing in a load-independent fashion.
A tension rod for the suspension of a conduit has an abutment element threaded thereon for abutment of a spring casing from above or from below. The spring casing contains a compression spring acting between the bottom of the casing and a spring disk secured to the tension rod. An internal sleeve extends from the bottom of the casing and prevents complete compression of the spring. The threaded on abutment element adjustable limits decompression of the spring. Through supplementary structure the tension rod can be locked to the casing in a load-independent fashion.
Description
1~3~871
2~337-314 The present invention relates to the resilient suspension of tubular conduits.
Suspensions of the type to which the invention pertains recolor that a spring contained, for example, within a casing is dimensioned to be able to support the weight of a conduit suspended generally on a tension rod. In the case of a pipe for the conduct lion of steam, it will be observed, however, that the weight of the steam is neglected in calculating the pertinent weight. Such conduits have to be inspected from time to time with regard to their pressure tightness. For this purpose they are filled with water, which of course increases the weight, thus significantly raising the load which the conduit exert upon its suspension. In practice, it was found that the resilient suspension may in fact become overloaded and completely compressed losing all of the resiliency. Another instance has to be observed in that it may be necessary at times to release the conduit or a portion thereof from the suspension. In such eases the loading of the spring is actually removed because the load is in fact omitted in its entirety.
Considering these various abnormal conditions, it has been suggested to provide certain stops or locking mechanisms for such resilient suspensions, including, for example, bolts or pins which lock the tension rod to the spring; housing in a foree-transmittinc3 relationship Other locking mechanisms are known; for example, the spring disks may be positively connected to the spring casing through an appropriate pin. In still other versions, it is known ~3C1 ~37i to provide teeth in the housing to be engaged with toothed locking sheets.
In all these instances one has to expect difficulties because it requires generally that certain bores in the system are aligned, but on account of variations in loading, this align-mint is not obtained so that the locking pin insertion cannot take place. This involves, for example, situations of bores in the tension rod or the spring disk or the housing or the like. In practice of course one will try to manipulate the equipment to restore the requisite alignment, for example, through lifting of the tubing; however, this is a manual operation and may require a considerable force that is not necessarily commensurate with the requisite precision of alignment.
SUMMARY OF THE INVENTION
It is an object of the invention to provide a resilient suspension for tubes permitting an adjustment of the locking position in any disposition of the spring vis-a-vis the load supporting tension rod, and in a further relation to the spring housing. Moreover, the resilient suspension is to be constructed so that the locking position permits a suitable adjustment of the bias of the spring suspension on a steady scale.
The invention provides a resilient suspension for tubular conduits comprising:
a tubular casing having a bottom;
a sleeve extending into the casing and mounted on said bottom;
~23~
a compression spring in said housing enclosing said sleeve and bearing with one end against said bottom;
a tension rod having a spring disk affixed thereto, said spring disk being situated in said casing and bearing against the other end of said spring;
said sleeve having an axial dimension within said casing slightly larger than the axial dimension of said spring when fully compressed; and stop means threaded onto the tension rod to limit, through abutment with the casing or a portion stationary relative the casing, displacement of the tension rod commensurate to deco-press ion of said spring.
Preferably, there is a spacer ring made of synthetic material provided between the tension rod and the sleeve.
Preferably the sleeve also extends downwards below the case bottom and the threadec~on stop is constructed as an abutment ring which bears against the lower axial end face of the sleeve.
A supplementary sleeve may be provided to grip around the abutment ring and to be engaged onto a threaded Portion of the first mentioned sleeve which extends below the spring housing, but is otherwise freely movable. Issue supplementary sleeve locks the tension rod to the casing.
The abutment ring preferably has an axial bore traversing its inner thread for insertion of a pin made of a soft synthetic material and being amenable at its outer periphery to be squeezed into the outer thread on the tension rod. Alternatively, the ~3~371 abutment ring may be provided with a radial bore into which a soft synthetic screw can be threaded. Either method locks the stop ring to the tension rod.
As an alternative embodiment the tension rod could be extended upwards beyond the disk, and on the tension rod is engaged a threaded sleeve which is slidingly received in the cover of the casing. Moreover, this threaded sleeve has a collar bearing on the inside of the cover of the casing.
The inventive construction offers the advantage that the abutment or stop member is displaceable relative to the tension rod, and therefore can assume any disposition vis-a-vis the tension rod with reference to the spring housing or casing to effect engage-mint therewith. In this fashion it can serve as an abutment so that in the no-load condition, the tension of the spring is retained. In other words, the spring remains in compression. In case of an increase of the load, the sleeve in the interior of the casing serves as abutment for the spring disk so that a blocking position of the spring is safely avoided.
While the specification concludes with claims particularly pointing out and distinctly claiming the subject matter which is regarded as the invention, it if believed that the invention, and features and advantages thereof will be better understood from the following description taken in connection with the accompanying drawings in which:
Figure 1 is a longitudinal section through a preferred embodiment of the present invention, the resilient suspension ~3~37~
being shown in a non-abutment position;
Figure 2 shows the same suspension device as Figure 1 but in one of the two stop positions of the tension rod;
Figure 3 is a similar longitudinal section, but showing a slight modification.
Referring first to Figures 1 and 2, the inventive resilient suspension device includes a spring casing 3 which contains a compression spring 5 in coaxial relation. This compression spring 5 is biased between a bottom end 6 of the casing 3 and a spring disk 7. A tension rod 1 is secured centrally and coccal with the disk 7. The tension rod 1 is screw-threaded, and particularly has a threaded portion 2 near its lower end 1 for engagement with a conventional load bearing carrier or the like (not shown), which in turn is connectable to a tube or conduit, is likewise not shown.
The portion of the rod to which this load bearing carrier or suspension device is connected projects from the casing 3 through the bottom 6.
The tension rod 1 is received in part by a sleeve 8 radially spaced from the rod, and in turn received within the spring 5. The sleeve 8 also projects to some extent below the bottom 6 of the casing 3. As illustrated in Figure 1, the sleeve 8 to the extent it projects into casing 3 ills an axial dimension which appears to be shorter than the axial dimension of the spring 5. However, these dimensions are chosen such that upon full come press ion the spring 5 will in fact have an axial dimension smaller than the axial dimension of the sleeve 8 inside casing 3. Therefore, ~L~3~3~37~
the upper end pa of the sleeve 8 can serve as abutment and stop for the spring disk 7 whenever the compression of the spring reaches a near limit situation. This will occur when the load on the tension rod is too high, and constitutes one stop position for the rod 1. The sleeve 8 is fixed to the casing 3, as by welding.
An abutment ring 4 is engaged onto the threaded portion 2 of the tension rod 1. Independently of the position of the tension rod vis-a-vis the casing 3, the abutment ring 4 may be brought into abutment with the lower end face 8b of the sleeve 8.
This specific position of abutment is shown in Figure 2. This feature thus limits the expandability of the spring and constitutes the second stop position for the rod 1.
Figure 2 illustrates moreover a supplemental sleeve 10 which is threaded onto a thread 9 on the sleeve 8. This supple-mental sleeve 10 has a collar portion which extends under the ring 4. This means that the sleeve 10 when threaded onto the sleeve 8 can prevent downwards displacement of the tension rod 1 via the annuls 4 threaded on the tension rod 1, namely whenever the ring 4 abuts the inwardly extending collar of the supplemental sleeve 10.
The ring 4 moreover is provided with a radial bore 11 into which a set screw 12 is threadedly inserted. Preferably a rather soft synthetic material is used for that purpose. The tip of the screw can engage the thread 2 in whatever disposition ring 4 occupies to lock the abutment ring 4 against unwanted displace-mint and thereby positively define the disposition of the ring 4 on the tension rod 1, which of course is an adjustable position vis-a-vis the abutment position it may attain under certain load conditions as against the axial front face pa of the sleeve 8.
Another feature which can be observed is a sleeve 18 comprising a spacer made of synthetic material. The sleeve 18 is also threaded onto the tension rod 1, and slidingly enrages the interior of the sleeve 8.
The locking position of the ring 4 can in the alternative be attained by a pin which is likewise made of a soft synthetic material, but which axially traverses the thread of the ring 4, and can be wedged into the thread of the tension rod 1 to accord-tingly lock the ring 4 into the adjusted position.
It can thus be seen that the ring 4 can be threaded onto the tension rod 1 and arrested thereon in a particular position.
This then establishes a limit in the expansion of the spring 5.
In other words, the spring 5 is never being fully extended or relieved, but rather its extension is limited by the ring 4. On the other hand, the axial dimension of the spring 5 vis-a-vis the axial dimension of the sleeve 8 limits the amount of compression the spring 5 may undergo before being blocked. Finally, the supple-mental sleeve 10 permits locking of the tension rod 1 in a position in which irrespective of the load conditions on the tension God 1, the abutment ring 4 is forced against the lower end of the sleeve 8.
These various dispositions of adjustment are finely and accurately adjustable simply through the threading of the ring 4 on rod 1 and the treading of sleeve 10 on sleeve 8.
The example shown in Figure 3 employ the basic print supply outlined above, except that certain physical relationships _ 7 ~3~8~
are reversed without change of function. In this example, the rod 1 has been extended beyond the spring disk 7, the extension being denoted by reference numeral 21, and the threading of that extension by reference numeral 22. A supplemental sleeve 14 is threaded onto the extension 21, and is slid ably disposed vis-a-vis the casing cover 13. This cover is likewise provided in the embodiment shown in Figure 1 and 2 but there it does not have any specific function.
In Figure 3 it is used as an element for guiding the sleeve 14, and of course it closes the casing 3 from above. This sleeve 14 has a collar 15 which can be made to bear against the cover 13 from below and thereby provide a predetermined limit position for the tension rod 1 when it has been threaded into the sleeve 14. This way one positions the tension rod 1 and avoids complete decompression of the spring. The sleeve 8 in this embodiment fulfills the same function as before, i.e., it prevents the complete compression of the sprint 5.
It can thus be seen that the effect of the spring 5 is adjustable through appropriate position control on the tension rod 1, which, as per Figures 1 and 2, can be provided on the lower portion, i.e., underneath the sprint housing 3, while in the embodiment of Figure 3 this position adjustment is carried out in the upper portion of the system.
It should be noted that the suspension shown in FicJure 2 is usable not only as a resilient hanger, but also, with a slight modification as a spring support. For the latter use the spring 5 would be arranged on the opposite side of the disk 7.
Suspensions of the type to which the invention pertains recolor that a spring contained, for example, within a casing is dimensioned to be able to support the weight of a conduit suspended generally on a tension rod. In the case of a pipe for the conduct lion of steam, it will be observed, however, that the weight of the steam is neglected in calculating the pertinent weight. Such conduits have to be inspected from time to time with regard to their pressure tightness. For this purpose they are filled with water, which of course increases the weight, thus significantly raising the load which the conduit exert upon its suspension. In practice, it was found that the resilient suspension may in fact become overloaded and completely compressed losing all of the resiliency. Another instance has to be observed in that it may be necessary at times to release the conduit or a portion thereof from the suspension. In such eases the loading of the spring is actually removed because the load is in fact omitted in its entirety.
Considering these various abnormal conditions, it has been suggested to provide certain stops or locking mechanisms for such resilient suspensions, including, for example, bolts or pins which lock the tension rod to the spring; housing in a foree-transmittinc3 relationship Other locking mechanisms are known; for example, the spring disks may be positively connected to the spring casing through an appropriate pin. In still other versions, it is known ~3C1 ~37i to provide teeth in the housing to be engaged with toothed locking sheets.
In all these instances one has to expect difficulties because it requires generally that certain bores in the system are aligned, but on account of variations in loading, this align-mint is not obtained so that the locking pin insertion cannot take place. This involves, for example, situations of bores in the tension rod or the spring disk or the housing or the like. In practice of course one will try to manipulate the equipment to restore the requisite alignment, for example, through lifting of the tubing; however, this is a manual operation and may require a considerable force that is not necessarily commensurate with the requisite precision of alignment.
SUMMARY OF THE INVENTION
It is an object of the invention to provide a resilient suspension for tubes permitting an adjustment of the locking position in any disposition of the spring vis-a-vis the load supporting tension rod, and in a further relation to the spring housing. Moreover, the resilient suspension is to be constructed so that the locking position permits a suitable adjustment of the bias of the spring suspension on a steady scale.
The invention provides a resilient suspension for tubular conduits comprising:
a tubular casing having a bottom;
a sleeve extending into the casing and mounted on said bottom;
~23~
a compression spring in said housing enclosing said sleeve and bearing with one end against said bottom;
a tension rod having a spring disk affixed thereto, said spring disk being situated in said casing and bearing against the other end of said spring;
said sleeve having an axial dimension within said casing slightly larger than the axial dimension of said spring when fully compressed; and stop means threaded onto the tension rod to limit, through abutment with the casing or a portion stationary relative the casing, displacement of the tension rod commensurate to deco-press ion of said spring.
Preferably, there is a spacer ring made of synthetic material provided between the tension rod and the sleeve.
Preferably the sleeve also extends downwards below the case bottom and the threadec~on stop is constructed as an abutment ring which bears against the lower axial end face of the sleeve.
A supplementary sleeve may be provided to grip around the abutment ring and to be engaged onto a threaded Portion of the first mentioned sleeve which extends below the spring housing, but is otherwise freely movable. Issue supplementary sleeve locks the tension rod to the casing.
The abutment ring preferably has an axial bore traversing its inner thread for insertion of a pin made of a soft synthetic material and being amenable at its outer periphery to be squeezed into the outer thread on the tension rod. Alternatively, the ~3~371 abutment ring may be provided with a radial bore into which a soft synthetic screw can be threaded. Either method locks the stop ring to the tension rod.
As an alternative embodiment the tension rod could be extended upwards beyond the disk, and on the tension rod is engaged a threaded sleeve which is slidingly received in the cover of the casing. Moreover, this threaded sleeve has a collar bearing on the inside of the cover of the casing.
The inventive construction offers the advantage that the abutment or stop member is displaceable relative to the tension rod, and therefore can assume any disposition vis-a-vis the tension rod with reference to the spring housing or casing to effect engage-mint therewith. In this fashion it can serve as an abutment so that in the no-load condition, the tension of the spring is retained. In other words, the spring remains in compression. In case of an increase of the load, the sleeve in the interior of the casing serves as abutment for the spring disk so that a blocking position of the spring is safely avoided.
While the specification concludes with claims particularly pointing out and distinctly claiming the subject matter which is regarded as the invention, it if believed that the invention, and features and advantages thereof will be better understood from the following description taken in connection with the accompanying drawings in which:
Figure 1 is a longitudinal section through a preferred embodiment of the present invention, the resilient suspension ~3~37~
being shown in a non-abutment position;
Figure 2 shows the same suspension device as Figure 1 but in one of the two stop positions of the tension rod;
Figure 3 is a similar longitudinal section, but showing a slight modification.
Referring first to Figures 1 and 2, the inventive resilient suspension device includes a spring casing 3 which contains a compression spring 5 in coaxial relation. This compression spring 5 is biased between a bottom end 6 of the casing 3 and a spring disk 7. A tension rod 1 is secured centrally and coccal with the disk 7. The tension rod 1 is screw-threaded, and particularly has a threaded portion 2 near its lower end 1 for engagement with a conventional load bearing carrier or the like (not shown), which in turn is connectable to a tube or conduit, is likewise not shown.
The portion of the rod to which this load bearing carrier or suspension device is connected projects from the casing 3 through the bottom 6.
The tension rod 1 is received in part by a sleeve 8 radially spaced from the rod, and in turn received within the spring 5. The sleeve 8 also projects to some extent below the bottom 6 of the casing 3. As illustrated in Figure 1, the sleeve 8 to the extent it projects into casing 3 ills an axial dimension which appears to be shorter than the axial dimension of the spring 5. However, these dimensions are chosen such that upon full come press ion the spring 5 will in fact have an axial dimension smaller than the axial dimension of the sleeve 8 inside casing 3. Therefore, ~L~3~3~37~
the upper end pa of the sleeve 8 can serve as abutment and stop for the spring disk 7 whenever the compression of the spring reaches a near limit situation. This will occur when the load on the tension rod is too high, and constitutes one stop position for the rod 1. The sleeve 8 is fixed to the casing 3, as by welding.
An abutment ring 4 is engaged onto the threaded portion 2 of the tension rod 1. Independently of the position of the tension rod vis-a-vis the casing 3, the abutment ring 4 may be brought into abutment with the lower end face 8b of the sleeve 8.
This specific position of abutment is shown in Figure 2. This feature thus limits the expandability of the spring and constitutes the second stop position for the rod 1.
Figure 2 illustrates moreover a supplemental sleeve 10 which is threaded onto a thread 9 on the sleeve 8. This supple-mental sleeve 10 has a collar portion which extends under the ring 4. This means that the sleeve 10 when threaded onto the sleeve 8 can prevent downwards displacement of the tension rod 1 via the annuls 4 threaded on the tension rod 1, namely whenever the ring 4 abuts the inwardly extending collar of the supplemental sleeve 10.
The ring 4 moreover is provided with a radial bore 11 into which a set screw 12 is threadedly inserted. Preferably a rather soft synthetic material is used for that purpose. The tip of the screw can engage the thread 2 in whatever disposition ring 4 occupies to lock the abutment ring 4 against unwanted displace-mint and thereby positively define the disposition of the ring 4 on the tension rod 1, which of course is an adjustable position vis-a-vis the abutment position it may attain under certain load conditions as against the axial front face pa of the sleeve 8.
Another feature which can be observed is a sleeve 18 comprising a spacer made of synthetic material. The sleeve 18 is also threaded onto the tension rod 1, and slidingly enrages the interior of the sleeve 8.
The locking position of the ring 4 can in the alternative be attained by a pin which is likewise made of a soft synthetic material, but which axially traverses the thread of the ring 4, and can be wedged into the thread of the tension rod 1 to accord-tingly lock the ring 4 into the adjusted position.
It can thus be seen that the ring 4 can be threaded onto the tension rod 1 and arrested thereon in a particular position.
This then establishes a limit in the expansion of the spring 5.
In other words, the spring 5 is never being fully extended or relieved, but rather its extension is limited by the ring 4. On the other hand, the axial dimension of the spring 5 vis-a-vis the axial dimension of the sleeve 8 limits the amount of compression the spring 5 may undergo before being blocked. Finally, the supple-mental sleeve 10 permits locking of the tension rod 1 in a position in which irrespective of the load conditions on the tension God 1, the abutment ring 4 is forced against the lower end of the sleeve 8.
These various dispositions of adjustment are finely and accurately adjustable simply through the threading of the ring 4 on rod 1 and the treading of sleeve 10 on sleeve 8.
The example shown in Figure 3 employ the basic print supply outlined above, except that certain physical relationships _ 7 ~3~8~
are reversed without change of function. In this example, the rod 1 has been extended beyond the spring disk 7, the extension being denoted by reference numeral 21, and the threading of that extension by reference numeral 22. A supplemental sleeve 14 is threaded onto the extension 21, and is slid ably disposed vis-a-vis the casing cover 13. This cover is likewise provided in the embodiment shown in Figure 1 and 2 but there it does not have any specific function.
In Figure 3 it is used as an element for guiding the sleeve 14, and of course it closes the casing 3 from above. This sleeve 14 has a collar 15 which can be made to bear against the cover 13 from below and thereby provide a predetermined limit position for the tension rod 1 when it has been threaded into the sleeve 14. This way one positions the tension rod 1 and avoids complete decompression of the spring. The sleeve 8 in this embodiment fulfills the same function as before, i.e., it prevents the complete compression of the sprint 5.
It can thus be seen that the effect of the spring 5 is adjustable through appropriate position control on the tension rod 1, which, as per Figures 1 and 2, can be provided on the lower portion, i.e., underneath the sprint housing 3, while in the embodiment of Figure 3 this position adjustment is carried out in the upper portion of the system.
It should be noted that the suspension shown in FicJure 2 is usable not only as a resilient hanger, but also, with a slight modification as a spring support. For the latter use the spring 5 would be arranged on the opposite side of the disk 7.
Claims (6)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A resilient suspension for tubular conduits comprising:
a tubular casing having a bottom;
a sleeve extending into the casing and mounted on said bottom;
a compression spring in said housing enclosing said sleeve and bearing with one end against said bottom;
a tension rod having a spring disk affixed thereto said spring disk being situated in said casing and bearing against the other end of said spring;
said sleeve having an axial dimension within said casing slightly larger than the axial dimension of said spring when fully compressed; and stop means threaded onto the tension rod to limit, through abutment with the casing or a portion stationary relative the casing, displacement of the tension rod commensurate to decompression of said spring.
a tubular casing having a bottom;
a sleeve extending into the casing and mounted on said bottom;
a compression spring in said housing enclosing said sleeve and bearing with one end against said bottom;
a tension rod having a spring disk affixed thereto said spring disk being situated in said casing and bearing against the other end of said spring;
said sleeve having an axial dimension within said casing slightly larger than the axial dimension of said spring when fully compressed; and stop means threaded onto the tension rod to limit, through abutment with the casing or a portion stationary relative the casing, displacement of the tension rod commensurate to decompression of said spring.
2. A resilient suspension as in Claim 1, wherein said sleeve has a projecting portion extending downwards from said casing bottom, and said stop means is constructed as a threaded ring that is adapted to abut said projecting portion of the sleeve.
3. A suspension as in Claim 2, further including a supple-mentary sleeve provided for threading onto the downwards project-ing portion of the sleeve for holding said ring against said sleeve.
4. A suspension as in Claim 2 or 3, including locking means for preventing said ring from unthreading.
5. A resilient suspension as in Claim 1, 2 or 3, including a synthetic spacer provided between the sleeve and the tension rod, the spacer being threaded on the tension rod and slidable within the sleeve.
6. A suspension as in Claim 1, wherein said tension rod has an extension beyond the spring disk traversing an upper cover of the casing, there being an auxiliary sleeve threaded on the tension rod extension having collar means for abutment of said upper casing cover to thereby establish a displacement limit for the tension rod commensurate to a decompression of the spring.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3332098 | 1983-09-02 | ||
| DEP3332098.5 | 1983-09-02 | ||
| DEP3432599.9 | 1984-08-31 | ||
| DE19843432599 DE3432599A1 (en) | 1983-09-02 | 1984-08-31 | Spring shackle for pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1230871A true CA1230871A (en) | 1987-12-29 |
Family
ID=25813770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000462224A Expired CA1230871A (en) | 1983-09-02 | 1984-08-31 | Resilient suspension for conduits |
Country Status (3)
| Country | Link |
|---|---|
| CA (1) | CA1230871A (en) |
| DE (1) | DE3432599A1 (en) |
| ES (1) | ES293630Y (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3334136A1 (en) * | 1983-09-16 | 1985-03-28 | Mannesmann AG, 4000 Düsseldorf | Spring pot |
| DE202009006900U1 (en) | 2009-05-13 | 2009-07-23 | Pipe Support Systems Gmbh International | Spring support, in particular for pipelines and apparatus |
| CN107941453B (en) * | 2018-01-02 | 2024-04-05 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel free tail-spin test model recovery rod |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7740070U1 (en) * | 1977-12-28 | 1978-05-11 | Mannesmann Ag, 4000 Duesseldorf | SPRING HOLDER FOR PIPELINE |
| DE2835435C3 (en) * | 1978-08-12 | 1981-04-23 | Witzenmann Gmbh Metallschlauch-Fabrik Pforzheim, 7530 Pforzheim | Spring hangers or supports, in particular for pipelines |
-
1984
- 1984-08-31 DE DE19843432599 patent/DE3432599A1/en active Granted
- 1984-08-31 CA CA000462224A patent/CA1230871A/en not_active Expired
-
1986
- 1986-04-16 ES ES1986293630U patent/ES293630Y/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES293630U (en) | 1986-08-16 |
| DE3432599C2 (en) | 1989-03-30 |
| ES293630Y (en) | 1987-05-01 |
| DE3432599A1 (en) | 1985-03-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |