CH652158A5 - Joint for connecting together sections or lengths of reinforced concrete piles - Google Patents
Joint for connecting together sections or lengths of reinforced concrete piles Download PDFInfo
- Publication number
- CH652158A5 CH652158A5 CH6825/82A CH682582A CH652158A5 CH 652158 A5 CH652158 A5 CH 652158A5 CH 6825/82 A CH6825/82 A CH 6825/82A CH 682582 A CH682582 A CH 682582A CH 652158 A5 CH652158 A5 CH 652158A5
- Authority
- CH
- Switzerland
- Prior art keywords
- joint
- lengths
- reinforced concrete
- seats
- blades
- Prior art date
Links
- 239000011150 reinforced concrete Substances 0.000 title abstract description 9
- 239000002184 metal Substances 0.000 abstract description 10
- 239000004567 concrete Substances 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract description 4
- 210000002105 tongue Anatomy 0.000 abstract 2
- 238000005266 casting Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 206010013647 Drowning Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- 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
- F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
- F16L25/0018—Abutment joints
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
Description
652158 652158
2 2
RIVENDICAZIONI
1. Giunto per il collegamento fra segmenti o tronchi di pali in calcestruzzo armato, del tipo comprendente una coppia di ghiere munite di armature assiali associate alle teste dei tronchi di palo da collegare per annegamento nel getto dei tronchi stessi, caratterizzato da ciò, che di dette ghiere una comporta sedi a forma di tasca, mentre l'altra presenta lame sporgenti assialmente a baionetta atte ad inserirsi in dette sedi per il collegamento, e da ciò che comprende spinotti conici da inserire forzati entro fori, posti in corrispondenza nel collegamento, attraversanti dette lame e le pareti di dette sedi delle due ghiere. 1. Joint for the connection between segments or trunks of reinforced concrete poles, of the type comprising a pair of ferrules equipped with axial armatures associated with the heads of the pile trunks to be connected by drowning in the casting of the trunks themselves, characterized in this way, which said ring nuts one has pocket-shaped seats, while the other has axially protruding bayonet blades suitable for insertion in said seats for connection, and from this which includes conical pins to be inserted forced into holes, placed in correspondence in the connection, passing through said blades and the walls of said seats of the two ring nuts.
2. Giunto come in rivendicazione 1, in cui dette ghiere sono costituite da fasce metalliche ad anello al cui interno sono applicate mediante saldatura dette sedi a tasca o, rispettivamente, dette lame sporgenti a baionetta, nonché spezzoni di tondino costituenti dette armature assiali da annegare nel getto dei tronchi di palo. 2. Joint as in claim 1, wherein said ring nuts are made up of ring-shaped metal bands inside which said pocket seats or respectively protruding bayonet blades are applied by welding, as well as pieces of rod constituting said axial armatures to be drowned in the casting of the tree trunks.
3. Giunto come nelle rivendicazioni 1 e 2, in cui detti spinotti vengono rivestiti di una camicia metallica tagliata lungo una direttrice. 3. Joint as in claims 1 and 2, wherein said pins are coated with a metal jacket cut along a direction.
4. Giunto come nelle rivendicazioni 1 e 3, in cui fra le teste dei tronchi di palo da collegare, munite di dette ghiere, è inserito un cuscinetto od uno strato di resina sintetica adatti. 4. Joint as in claims 1 and 3, wherein between the heads of the pole trunks to be connected, equipped with said ring nuts, a suitable bearing or a layer of synthetic resin is inserted.
5. Giunto secondo le rivendicazioni da 1 a 4 con le parti metalliche ricavate per fusione. Joint according to claims 1 to 4 with the metal parts obtained by casting.
È noto che l'uso sempre più esteso dei pali in cemento armato ha portato, già da tempo, a costruire questi manufatti anche di dimensioni molto rilevanti, particolarmente con riguardo alla lunghezza, che spesso si richiede raggiunga e talvolta superi i 40 m. It is known that the increasingly widespread use of reinforced concrete poles has led, for some time, to building these products also of very significant dimensions, particularly with regard to the length, which is often required to reach and sometimes exceed 40 m.
È pure noto che il trasporto e l'impiego di pali così lunghi ha fatto sorgere difficoltà non trascurabili, in parte derivanti dal semplice ingombro dei pali stessi, in parte e, più gravemente, dalle sollecitazioni in essi prodotte dalle condizioni di trasporto e di uso. Il tentativo di superare queste difficoltà con un rinforzo delle armature interne, volto a renderle meglio rispondenti alle sollecitazioni di trasporto e di impiego, ha eliminato solo in parte le difficoltà sopra accennate ed ha aumentato il costo dei pali, per cui si è preferito già da tempo orientarsi verso la costruzione dei pali in cemento armato di rilevante lunghezza in segmenti o tronchi di palo da congiungere fra loro di testa man mano che essi vengono messi in opera o affondati (infissi nel terreno o sott'acqua). Una tale soluzione richiede ovviamente la previsione di adatti sistemi di collegamento, per i quali la tecnica ha già fornito numerosi tipi di giunti che sono stati largamente impiegati con buoni risultati. It is also known that the transport and use of such long poles has given rise to considerable difficulties, in part deriving from the simple size of the poles themselves, in part and, more seriously, from the stresses produced by the conditions of transport and use. . The attempt to overcome these difficulties with a reinforcement of the internal reinforcements, aimed at making them better responsive to transport and use stresses, has only partially eliminated the difficulties mentioned above and has increased the cost of the poles, for which it has already been preferred time to move towards the construction of reinforced concrete poles of considerable length in segments or pole trunks to be joined together at the head as they are installed or sunk (fixtures in the ground or underwater). Such a solution obviously requires the provision of suitable connection systems, for which the technique has already provided numerous types of joints which have been widely used with good results.
Le sempre maggiori esigenze della tecnica delle costruzioni di abbinare all'efficacia e alla sicurezza già ottenute con le soluzioni note, una speditezza di esecuzione e una economia di costo maggiori di quelle ottenibili con tali soluzioni hanno tuttavia reso meno rispondenti alle attuali necessità i giunti noti ed hanno consigliato di studiare un tipo perfezionato di giunto che meglio si adattasse alla prassi costruttiva più moderna. The ever increasing requirements of the construction technique to combine the efficiency and safety already obtained with the known solutions, a faster execution and a higher cost economy than those obtainable with these solutions have however made known joints less responsive to current needs. and they recommended to study an improved type of joint that best suited to the most modern construction practice.
Questo giunto, oggetto della presente invenzione, è del tipo comprendente una coppia di ghiere munite di armature assiali associate alle teste dei tronchi di palo in cemento armato da collegare per annegamento nel getto dei tronchi stessi ed è caratterizzato da ciò, che di dette ghiere una comporta sedi assiali a forma di tasca, mentre l'altra presenta lame sporgenti assialmente a baionetta atte ad inserirsi in dette sedi per il collegamento e da ciò, che comprende spinotti conici da inserire forzati entro fori, posti in corrispondenza del collegamento, attraversanti dette lame e le pareti di dette sedi delle due ghiere. This joint, object of the present invention, is of the type comprising a pair of ferrules equipped with axial armatures associated with the heads of the reinforced concrete pile trunks to be connected by drowning in the casting of the trunks themselves and is characterized in that by said ferrules a it has axial pocket-shaped seats, while the other has axially bayonet-protruding blades suitable for insertion in said seats for connection and from this, which includes conical pins to be forced forced into holes, placed in correspondence with the connection, through said blades and the walls of said seats of the two ferrules.
Le ghiere del giunto consistono preferibilmente in una 5 fascia metallica ad anello al cui interno sono applicati mediante saldatura dette sedi a tasca o dette lame sporgenti a baionetta ed elementi di tondino o simili costituenti le armature assiali da annegare nel getto dei tronchi di palo (i quali vengono generalmente a contatto di testa con le loro io parti in cemento). Pure preferibilmente detti spinotti conici vengono rivestiti da una camicia metallica tagliata lungo una direttrice per favorire l'applicazione degli spinotti stessi e migliorare la sicurezza del collegamento. The ring nuts of the joint preferably consist of a 5 ring-shaped metal band inside which are applied by welding said pocket seats or said protruding bayonet blades and rod elements or the like which constitute the axial reinforcements to be drowned in the casting of the pole trunks (the which generally come into contact with their concrete parts). Also preferably said conical pins are covered by a metal jacket cut along a direction to facilitate the application of the pins and improve the security of the connection.
Il trovato viene ora descritto in maggior dettaglio qui di seguito, a scopo puramente esemplificativo, facendo riferimento ai disegni allegati che ne illustrano una pratica forma di esecuzione e nei quali: The invention is now described in greater detail below, purely by way of example, with reference to the attached drawings which illustrate a practical embodiment and in which:
fig. 1 mostra le due ghiere del giunto disegnate contrap-20 poste in una vista prospettica; e fig. 2 è una vista prospettica di due tronchi di palo muniti delle ghiere del giunto secondo l'invenzione di fig. 1 pronti per essere collegati di testa per formare un palo. Fig. 1 shows the two ring nuts of the joint drawn counter-20 placed in a perspective view; and fig. 2 is a perspective view of two pole trunks equipped with the ring nuts of the joint according to the invention in fig. 1 ready to be butted to form a pole.
Il giunto secondo l'invenzione illustrato dai disegni è 25 formato da una coppia di ghiere metalliche ad anello 1 e 2 sul cui interno vengono applicate per saldatura rispettivamente sedi assiali a tasca 3 e lame assiali sporgenti a baionetta 4, uniformemente distanziate tra loro. Sempre all'interno delle ghiere 1 e 2 vengono saldati elementi di tondi-30 no 5 disposti assialmente ed eventualmente piegati (in 5'). The joint according to the invention illustrated by the drawings is 25 formed by a pair of ring-shaped metal ring nuts 1 and 2 on whose inside axial pocket seats 3 and axial bayonet protruding blades 4 are applied respectively, uniformly spaced apart. Still inside the ring nuts 1 and 2, elements of rods 30 or 5 arranged axially and possibly bent (in 5 ') are welded.
Nella forma di esecuzione illustrata del giunto secondo l'invenzione sono previste quattro sedi a tasca 3 e quattro corrispondenti lame a baionetta 4, uniformemente distanziate. È chiaro peraltro che potrebbero essere previsti solo 35 tre di questi elementi per tronchi di palo di piccolo diametro o più di quattro per tronchi di palo di grande diametro. In the illustrated embodiment of the joint according to the invention, four pocket seats 3 and four corresponding bayonet blades 4 are provided, uniformly spaced apart. It is clear, however, that only 35 three of these elements could be provided for small diameter pile logs or more than four for large diameter pile logs.
Sedi 3 della ghiera 1 e lame sporgenti 4 della ghiera 2 sono disposte e formate in modo da corrispondersi, con le lame 4 capaci di inserirsi in modo facile e pratico, ma con 40 una certa precisione, nelle sedi 3 quando le ghiere 1 e 2 vengono contrapposte ed avvicinate. Fori 6 attraversano le pareti contrapposte delle sedi 3 e fori 7 le lame 4, detti fori essendo destinati a disporsi in corrispondenza reciproca quando le lame 4 vengano inserite nelle sedi 3. 45 Completano il giunto spinotti conici 8 (fig. 2) muniti di una camicia metallica 9 tagliata in 10 lungo una direttrice, destinati ad essere inseriti nei fori 6 e 7 delle sedi 3 e delle lame 4. Seats 3 of the ring nut 1 and protruding blades 4 of the ring nut 2 are arranged and formed so as to correspond, with the blades 4 capable of being inserted in an easy and practical way, but with a certain precision, in the seats 3 when the ring nuts 1 and 2 they are opposed and brought closer. Holes 6 pass through the opposite walls of the seats 3 and holes 7 the blades 4, said holes being intended to be arranged in mutual correspondence when the blades 4 are inserted in the seats 3. 45 They complete the joint with tapered pins 8 (fig. 2) equipped with a metal jacket 9 cut into 10 along a line, intended to be inserted in holes 6 and 7 of seats 3 and blades 4.
Come mostra la fig. 2, le ghiere 1 e 2 vengono appli-50 cate sulla testa di due tronchi o segmenti di palo 11 e 12 in cemento armato da collegare, al quale sono resi solidali per essere riempite dal getto dei tronchi stessi e per avere gli elementi assiali di tondino 5 annegati nel medesimo getto. As shown in fig. 2, the ferrules 1 and 2 are applied to the head of two logs or pole segments 11 and 12 in reinforced concrete to be connected, to which they are made integral to be filled by the casting of the logs themselves and to have the axial elements of rod 5 drowned in the same jet.
È evidente che allorché si debbono collegare di testa i 55 tronchi 11 e 12 — di cui si sarà curata la perfetta esecuzione piana e perpendicolare all'asse delle superfici terminali in cemento 13 e 14 — si appoggeranno i tronchi l'uno all'altro dopo averli disposti in allineamento, inserendo le lame sporgenti a baionetta 4 della ghiera 2 del tronco 12 60 entro le sedi a tasca 3 della ghiera 1 del tronco 11. Si applicheranno quindi gli spinotti 8 muniti della loro camicia 9 inserendone uno in ciascuno dei fori 6 delle sedi 3 visibili all'esterno della ghiera 1, in modo che essi penetrino anche nei fori 7 delle lame 4 posti in corrispondenza dei 65 fori 6 ed impegnino questi ultimi anche entro la parete interna delle sedi 3. Gli spinotti 8 vanno forzati mediante colpi di mazzetta, in modo da stabilire un collegamento rigido e stabile fra ghiere 1 e 2 e perciò fra i tronchi Ile It is evident that when the 55 trunks 11 and 12 must be connected at the head - the perfect execution of which will be perpendicular to the axis of the concrete end surfaces 13 and 14 - the trunks will rest one after the other arranging them in alignment, inserting the bayonet protruding blades 4 of the ring nut 2 of the trunk 12 60 into the pocket seats 3 of the ring nut 1 of the trunk 11. The pins 8 fitted with their jacket 9 will then be applied by inserting one into each of the holes 6 of the seats 3 visible on the outside of the ring nut 1, so that they also penetrate the holes 7 of the blades 4 placed in correspondence with the 65 holes 6 and engage the latter also within the internal wall of the seats 3. The pins 8 must be forced by means of blows of a bunch, so as to establish a rigid and stable connection between ring nuts 1 and 2 and therefore between the trunks Ile
3 3
652158 652158
12 del palo di cemento armato da realizzare. La presenza delle camicie 9 tagliate lungo la direttrice 10 assicura una elasticità molto opportuna dell'impegno tra spinotti e ghiere e, insieme alla conicità degli spinotti stessi, garantisce la stabilità del collegamento. 12 of the reinforced concrete pole to be built. The presence of the shirts 9 cut along the line 10 ensures a very suitable elasticity of the engagement between pins and ring nuts and, together with the taper of the pins themselves, guarantees the stability of the connection.
Il collegamento fra due tronchi muniti delle ghiere del giunto secondo l'invenzione avviene con. grande praticità ed efficacia, in brevissimo tempo e può essere affidata a personale di limitata specializzazione, realizzando perciò quelle economie che si desideravano, mentre è peraltro del tutto sicuro ed efficace. Le superfici terminali dei tronchi 11 e 12 The connection between two sections equipped with the ring nuts of the joint according to the invention takes place with. great practicality and effectiveness, in a very short time and can be entrusted to personnel of limited specialization, thus realizing those economies that were desired, while it is also completely safe and effective. The end surfaces of logs 11 and 12
possono essere finite in calcestruzzo, senza particolari aggiunte, oppure possono essere trattate con resine sintetiche. Queste possono anche essere applicate al momento dell'accoppiamento di testa dei pali a guisa di cuscinetto di colle-5 gamento. Si può inoltre prevedere la introduzione fra le superfici di testa dei tronchi da collegare di cuscinetti veri e propri di materiale adatto. they can be finished in concrete, without particular additions, or they can be treated with synthetic resins. These can also be applied at the head coupling of the poles as a connection bearing. It is also possible to provide for the insertion of proper bearings of suitable material between the head surfaces of the logs to be connected.
Il giunto secondo l'invenzione si presta particolarmente bene per essere applicato a tronchi di pali di cemento arto mato centrifugato di sezione circolare, con gli spinotti disposti in modo da agire radialmente. The joint according to the invention lends itself particularly well to be applied to trunks of centrifuged reinforced concrete poles of circular section, with the pins arranged so as to act radially.
v v
1 foglio disegni 1 sheet of drawings
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT25492/81A IT1139936B (en) | 1981-12-09 | 1981-12-09 | JOINT FOR THE CONNECTION BETWEEN SEGMENTS OR LOGS OF REINFORCED CONCRETE POLES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH652158A5 true CH652158A5 (en) | 1985-10-31 |
Family
ID=11216860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH6825/82A CH652158A5 (en) | 1981-12-09 | 1982-11-23 | Joint for connecting together sections or lengths of reinforced concrete piles |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT388405B (en) |
| BR (1) | BR8207163A (en) |
| CH (1) | CH652158A5 (en) |
| IT (1) | IT1139936B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3726697A1 (en) * | 1987-08-11 | 1989-02-23 | Leonhard Moll Gmbh & Co | Subdivided centrifugally cast concrete mast with coupling, and process for producing the coupling |
| GB2447199B (en) * | 2005-12-12 | 2009-05-06 | Romtech Ltd | Method of splicing pile cages, set of components therefor, and assembled pile cages |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005011851U1 (en) * | 2005-07-28 | 2005-10-20 | Goldbeck Bau Gmbh | Prefabricated base and pillar arrangement for buildings, has fishplates for connection of pillar with base at upper side of base and at lower end of pillar and bolts for connecting fishplates by driving them into aligned boreholes |
| CN107724384B (en) * | 2017-11-24 | 2023-09-15 | 华中科技大学 | A pile-to-pile connection construction method |
| EP4223936A1 (en) * | 2022-02-03 | 2023-08-09 | Centrum Pæle A/S | Foundation pile, pile foundation, coupling element and a method for installing a foundation pile into the ground |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB842746A (en) * | 1956-09-24 | 1960-07-27 | Erik Solve Severinsson | A device for joining pile sections and comprising two end parts adapted to be coupled together |
| FR1249535A (en) * | 1959-11-20 | 1960-12-30 | Frankignoul Pieux Armes | Reinforced concrete pilot formed from prefabricated elements |
| SE345150B (en) * | 1964-04-01 | 1972-05-15 | S Nilsson | |
| SE307108B (en) * | 1967-05-17 | 1968-12-16 | Johnson Construction Co Ab | |
| US3422630A (en) * | 1967-12-21 | 1969-01-21 | Gaston Marier | Concrete pile construction |
| SE331261B (en) * | 1969-03-28 | 1970-12-14 | E Wennstroem | |
| GB1288088A (en) * | 1969-07-17 | 1972-09-06 | ||
| US3728864A (en) * | 1971-03-04 | 1973-04-24 | G Wiswell | Apparatus for repairing steel supporting piles |
| BE792604A (en) * | 1971-12-13 | 1973-03-30 | Laine Martti | EXTENSIBLE JOINTS FOR CONCRETE MASSES |
| US3748863A (en) * | 1972-01-19 | 1973-07-31 | Texaco Inc | Connection for a nonmetallic foundation pile |
| ZA721940B (en) * | 1972-02-22 | 1972-12-27 | Stabilator Ab | A locking joint for concrete piles comprising joined sections |
-
1981
- 1981-12-09 IT IT25492/81A patent/IT1139936B/en active
-
1982
- 1982-11-23 CH CH6825/82A patent/CH652158A5/en not_active IP Right Cessation
- 1982-12-02 AT AT0438482A patent/AT388405B/en not_active IP Right Cessation
- 1982-12-09 BR BR8207163A patent/BR8207163A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3726697A1 (en) * | 1987-08-11 | 1989-02-23 | Leonhard Moll Gmbh & Co | Subdivided centrifugally cast concrete mast with coupling, and process for producing the coupling |
| DE3726697C2 (en) * | 1987-08-11 | 1999-11-04 | Leonhard Moll Gmbh & Co | Divided centrifugal concrete mast with coupling and method for producing the coupling |
| GB2447199B (en) * | 2005-12-12 | 2009-05-06 | Romtech Ltd | Method of splicing pile cages, set of components therefor, and assembled pile cages |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1139936B (en) | 1986-09-24 |
| ATA438482A (en) | 1988-11-15 |
| BR8207163A (en) | 1983-10-11 |
| IT8125492A0 (en) | 1981-12-09 |
| AT388405B (en) | 1989-06-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |