EP0289736A1 - Manhole cover - Google Patents

Manhole cover Download PDF

Info

Publication number
EP0289736A1
EP0289736A1 EP88103475A EP88103475A EP0289736A1 EP 0289736 A1 EP0289736 A1 EP 0289736A1 EP 88103475 A EP88103475 A EP 88103475A EP 88103475 A EP88103475 A EP 88103475A EP 0289736 A1 EP0289736 A1 EP 0289736A1
Authority
EP
European Patent Office
Prior art keywords
cover
polyurethane
frame
cast iron
gray cast
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.)
Granted
Application number
EP88103475A
Other languages
German (de)
French (fr)
Other versions
EP0289736B1 (en
Inventor
Hermann-Heinz Burger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Burger-Armaturen GmbH
Original Assignee
Burger-Armaturen GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Burger-Armaturen GmbH filed Critical Burger-Armaturen GmbH
Priority to AT88103475T priority Critical patent/ATE62953T1/en
Publication of EP0289736A1 publication Critical patent/EP0289736A1/en
Application granted granted Critical
Publication of EP0289736B1 publication Critical patent/EP0289736B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/124—Shaft entirely made of synthetic material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
    • E02D29/14—Covers for manholes or the like; Frames for covers

Definitions

  • the invention relates to a road cap with an essentially hollow cylindrical frame which is widened to form a ring on one end face to form a cover seat, and with a cover which is received by the cover seat with its jacket.
  • Street caps are used to make it easier to access shut-off devices, drainage and control pipes from gas or water pipes in roadways and sidewalks.
  • a street cap consists of an almost hollow cylindrical - slightly frustoconical - frame, which is widened in a ring at its upper end and has a shoulder, and a cover which is inserted into the ring-shaped part. At the opposite end, the frame can have a flange for the stable and pull-out-safe mounting in a roadway or a walkway. Street caps are the subject of several DIN standards (cf. DIN 4055 to 4059).
  • Street caps consist of gray cast iron (see DIN 4058) or of polyurethane foam (see DE-U-81 25 409).
  • gray cast iron street caps the fit between cover and frame is low, which leads to the known "rattling" of the cover. This is not the case with polyurethane road caps. Rather, the lid can be inserted into the frame with a precise fit. The lid does not rattle in the frame.
  • the replacement of gray cast iron street caps with those made of polyurethane requires the complete removal of the gray cast iron street cap, which then becomes scrap. In many cases, this is an unacceptable effort.
  • the invention seeks to remedy this.
  • the invention has for its object to provide a road cap in which the fit between the frame and cover is given without having to produce the entire road cap from polyurethane. According to the invention, this object is achieved in that the cover seat and / or the jacket are made of polyurethane.
  • Polyurethanes are linear chain molecules created by polyaddition of diisocyanates to diols and contain the urethane group. Polyurethane foams are formed during polyaddition when water and / or carboxylic acids are present (cf. Römpps Chemie-Lexikon Volume 5 1975 pp. 2774/2775).
  • the road cap according to the invention has the properties of the road cap made entirely of polyurethane with regard to the accuracy of fit between the lid and the frame. Like this, it can be used instead of the gray cast iron street cap. They are used in exchange: the gray cast iron road cap is removed and a road cap according to the invention is used in its place. The removed road cap made of gray cast iron is then machined, provided with a cup-like recess in the area of the cover seat in an embodiment of the invention, and this is filled with polyurethane. A frame designed in this way can then be exchanged for the next gray cast iron street cap.
  • the frame need not be removed; rather, the cover made entirely of gray cast iron can be replaced on the spot with the cover according to the invention. Street caps according to the invention with a cover seat and a jacket made of polyurethane can also be newly manufactured and used in the factory.
  • the street cap chosen as an exemplary embodiment has a frame 1 into which a cover 2 is inserted.
  • Both the frame 1 and the cover 2 are made of gray cast iron and polyurethane in the embodiment. It is possible to manufacture only the frame 1 or only the cover 2 from gray cast iron and polyurethane; the other part only made of gray cast iron. However, the latter does not lead fully to the advantages sought with the invention.
  • the frame 1 has an essentially hollow cylindrical, slightly conical middle part 11 made of gray cast iron.
  • a ring 13 is formed on the central part 11 to form a cover seat 3.
  • the cover seat 3 is formed by a cup-like recess 12 in the ring 13, which is filled with polyurethane.
  • the cover 2 rests in the cover seat 3.
  • a web 14 projecting into the cavity is formed on the inner wall of the central part 11 in relation to the recess 12, which is offset inward in the axial direction. With the help of the web 14, the cover 2 is captively attached to the frame 1.
  • the middle part 11 merges into a flange 15.
  • the cover 2 is formed from a disk-shaped middle piece 21 made of gray cast iron and an annular jacket 4 surrounding the middle piece 21 made of polyurethane.
  • the jacket 4 is supplemented to a collar 23. It is possible on the inside of the Cover 2 reinforcement ribs.
  • the outer surface 22 of the cover 2 lies flush with the end face 16 of the ring 13.
  • the cover 2 has a recess 24 in the center for receiving actuating and holding members.

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Sewage (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

The manhole cover has a frame (1) and a lid (2). The frame (1) is of essentially hollow-cylindrical construction and at one end face is opened out into a ring (13) while forming a lid seat (3). With its casing (4), the lid (2) is accommodated by the lid seat (3). The lid seat (3) and the casing (4) are made of polyurethane. <IMAGE>

Description

Technisches Gebiet:Technical field:

Die Erfindung betrifft eine Straßenkappe mit einem im wesentlichen hohlzylindrischen Rahmen, der an einer Stirnseite unter Bildung eines Deckelsitzes zu einem Ring aufgeweitet ist, und mit einem Deckel, der mit seinem Mantel von dem Deckelsitz aufgenommen ist.The invention relates to a road cap with an essentially hollow cylindrical frame which is widened to form a ring on one end face to form a cover seat, and with a cover which is received by the cover seat with its jacket.

Um in Fahrbahnen und Gehwegen unter der Erdoberfläche verlegte Absperreinrichtungen, Abzug- und Kontroll­rohre von Gas- oder Wasserleitungen leicht zugänglich zu machen, werden Straßenkappen verwendet. Eine Straßenkappe besteht aus einem nahezu hohlzylindrischen - leicht kegelstumpfartigen - Rahmen, der an seinem einem - oberen - Ende ringförmig aufgeweitet ist und eine Schulter aufweist, sowie aus einem Deckel, der in den ringförmigen Teil eingelegt ist. Am entgegen­gesetzten Ende kann der Rahmen einem Flansch für die standfeste und auszugsichere Halterung in einer Fahr­bahn oder einem Gehweg aufweisen. Straßenkappen sind Gegenstand mehrerer DIN-Normen (vgl. DIN 4055 bis 4059).Street caps are used to make it easier to access shut-off devices, drainage and control pipes from gas or water pipes in roadways and sidewalks. A street cap consists of an almost hollow cylindrical - slightly frustoconical - frame, which is widened in a ring at its upper end and has a shoulder, and a cover which is inserted into the ring-shaped part. At the opposite end, the frame can have a flange for the stable and pull-out-safe mounting in a roadway or a walkway. Street caps are the subject of several DIN standards (cf. DIN 4055 to 4059).

Stand der Technik:State of the art:

Straßenkappen bestehen aus Grauguß (vgl. DIN 4058) oder aus Polyurethan-Schaum (vgl. DE-U- 81 25 409). Bei Straßenkappen aus Grauguß ist u.a. die Paßge­nauigkeit zwischen Deckel und Rahmen gering, was zu dem bekannten "Klappern" des Deckels führt. Dies ist bei Straßenkappen aus Polyurethan nicht der Fall. Vielmehr kann bei ihnen der Deckel paß­genau in den Rahmen eingebracht werden. Der Deckel klappert nicht in dem Rahmen. Der Ersatz von Straßen­kappen aus Grauguß durch solche aus Polyurethan setzt aber den vollständigen Ausbau der Straßen­kappe aus Grauguß voraus, die dann zu Schrott wird. Dies ist in zahlreichen Fällen ein nicht ver­tretbarer Aufwand.Street caps consist of gray cast iron (see DIN 4058) or of polyurethane foam (see DE-U-81 25 409). For gray cast iron street caps, the fit between cover and frame is low, which leads to the known "rattling" of the cover. This is not the case with polyurethane road caps. Rather, the lid can be inserted into the frame with a precise fit. The lid does not rattle in the frame. The replacement of gray cast iron street caps with those made of polyurethane requires the complete removal of the gray cast iron street cap, which then becomes scrap. In many cases, this is an unacceptable effort.

Darstellung der Erfindung:Presentation of the invention:

Hier will die Erfindung Abhilfe schaffen. Der Er­findung liegt die Aufgabe zugrunde, eine Straßen­kappe zu schaffen, bei der die Paßgenauigkeit zwischen Rahmen und Deckel gegeben ist, ohne die gesamte Straßenkappe aus Polyurethan herstellen zu müssen. Gemäß der Erfindung wird diese Aufgabe da­durch gelöst, daß der Deckelsitz und/oder der Mantel aus Polyurethan hergestellt sind.The invention seeks to remedy this. The invention has for its object to provide a road cap in which the fit between the frame and cover is given without having to produce the entire road cap from polyurethane. According to the invention, this object is achieved in that the cover seat and / or the jacket are made of polyurethane.

Polyurethane sind durch Polyaddition von Diisocya­naten an Diole entstehende lineare Kettenmoleküle, die die Urethan-Gruppierung enthalten. Polyurethan-­Schäume entstehen bei der Polyaddition, wenn Wasser und/oder Carbonsäuren zugegen sind (vgl. Römpps Chemie-Lexikon Band 5 1975 S. 2774/2775).Polyurethanes are linear chain molecules created by polyaddition of diisocyanates to diols and contain the urethane group. Polyurethane foams are formed during polyaddition when water and / or carboxylic acids are present (cf. Römpps Chemie-Lexikon Volume 5 1975 pp. 2774/2775).

Die Straßenkappe nach der Erfindung hat hinsicht­lich der Paßgenauigkeit zwischen Deckel und Rahmen die Eigenschaften der vollständig aus Polyurethan bestehenden Straßenkappe. Sie kann wie diese an Stelle der Straßenkappe aus Grauguß eingesetzt werden. Der Einsatz erfolgt im Austausch: Die Straßenkappe aus Grauguß wird ausgebaut und an ihrer Stelle eine Straßenkappe nach der Erfindung eingesetzt. Die ausgebaute Straßenkappe aus Grau­guß wird dann bearbeitet, in Ausgestaltung der Erfindung im Bereich des Deckelsitzes mit einer napfartigen Ausnehmung versehen und diese mit Poly­urethan ausgefüllt. Ein so ausgebildeter Rahmen kann dann gegen die nächste Straßenkappe aus Grau­guß ausgetauscht werden. Begnügt man sich - was in zahlreichen Fällen ausreicht - nur mit dem Aus­tausch des Deckels, der in Ausgestaltung der Erfindung aus einem scheibenartigen Mittelstück aus Grauguß und dem das Mittelstück umgebenden ringförmigen Mantel aus Polyurethan gebildet ist, braucht der Rahmen nicht ausgebaut zu werden; vielmehr kann an Ort und Stelle der vollständig aus Grauguß bestehende Deckel gegen den Deckel nach der Erfindung ausge­tauscht werden. Straßenkappen nach der Erfindung mit Deckelsitz und Mantel aus Polyurethan können auch fabrikmäßig neu hergestellt und eingesetzt werden.The road cap according to the invention has the properties of the road cap made entirely of polyurethane with regard to the accuracy of fit between the lid and the frame. Like this, it can be used instead of the gray cast iron street cap. They are used in exchange: the gray cast iron road cap is removed and a road cap according to the invention is used in its place. The removed road cap made of gray cast iron is then machined, provided with a cup-like recess in the area of the cover seat in an embodiment of the invention, and this is filled with polyurethane. A frame designed in this way can then be exchanged for the next gray cast iron street cap. If one is satisfied - which is sufficient in numerous cases - only with the replacement of the cover, which in the embodiment of the invention is formed from a disk-like middle piece made of gray cast iron and the annular jacket surrounding the middle piece made of polyurethane, the frame need not be removed; rather, the cover made entirely of gray cast iron can be replaced on the spot with the cover according to the invention. Street caps according to the invention with a cover seat and a jacket made of polyurethane can also be newly manufactured and used in the factory.

Kurze Beschreibung der Zeichnung:Brief description of the drawing:

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend näher beschrieben. Die einzige Figur zeigt in verkleinertem Maßstab einerseits die Ansicht, andererseits einen Axialschnitt einer straßenkappe.An embodiment of the invention is shown in the drawing and will be described in more detail below. The only figure shows the view on a smaller scale, on the one hand, and an axial section of a street cap on the other.

Bester Weg zur Ausführung der Erfindung:Best way to carry out the invention:

Die als Ausführungsbeispiel gewählte Straßenkappe weist einen Rahmen 1 auf, in den ein Deckel 2 ein­gelegt ist. Sowohl der Rahmen 1 als auch der Deckel 2 bestehen im Ausführungsbeispiel aus Grauguß und Polyurethan. Es ist möglich, nur den Rahmen 1 oder nur den Deckel 2 aus Grauguß und Polyurethan herzustellen; das jeweils andere Teil nur aus Grau­guß. Letzteres führt aber nicht in vollem Umfang zu den mit der Erfindung angestrebten Vorteilen.The street cap chosen as an exemplary embodiment has a frame 1 into which a cover 2 is inserted. Both the frame 1 and the cover 2 are made of gray cast iron and polyurethane in the embodiment. It is possible to manufacture only the frame 1 or only the cover 2 from gray cast iron and polyurethane; the other part only made of gray cast iron. However, the latter does not lead fully to the advantages sought with the invention.

Der Rahmen 1 weist ein im wesentlichen hohlzylin­drisches, leicht konisches Mittelteil 11 aus Grau­guß auf. An der einen Stirnseite des Rahmens 1 ist an das Mittelteil 11 unter Bildung eines Deckel­sitzes 3 ein Ring 13 angeformt. Der Deckelsitz 3 ist gebildet von einer napfartigen Ausnehmung 12 in dem Ring 13, die mit Polyurethan ausgefüllt ist. In dem Deckelsitz 3 ruht der Deckel 2. Gegenüber der Ausnehmung 12 in Axialrichtung nach innen versetzt ist an der Innenwandung des Mittelteils 11 ein in den Hohlraum ragender Steg 14 angeformt. Mit Hilfe des Stegs 14 wird der Deckel 2 unverlier­bar an dem Rahmen 1 befestig. Auf der dem Ring 13 abgewandten Stirnseite geht das Mittelteil 11 in einen Flansch 15 über.The frame 1 has an essentially hollow cylindrical, slightly conical middle part 11 made of gray cast iron. On one end of the frame 1, a ring 13 is formed on the central part 11 to form a cover seat 3. The cover seat 3 is formed by a cup-like recess 12 in the ring 13, which is filled with polyurethane. The cover 2 rests in the cover seat 3. A web 14 projecting into the cavity is formed on the inner wall of the central part 11 in relation to the recess 12, which is offset inward in the axial direction. With the help of the web 14, the cover 2 is captively attached to the frame 1. On the end face facing away from the ring 13, the middle part 11 merges into a flange 15.

Der Deckel 2 ist aus einem scheibenförmigen Mittel­stück 21 aus Grauguß und einem das Mittelstück 21 umgebenden ringförmigen Mantel 4 aus Polyurethan gebildet. Für die Auflage in dem Deckelsitz 3 und zur Stabilisierung ist der Mantel 4 zu einem Kragen 23 ergänzt. Es ist möglich, auf der Innenseite des Deckels 2 Verstärkungsrippen vorzusehen. Die äußere Oberfläche 22 des Deckels 2 liegt bündig mit der Stirnfläche 16 des Rings 13. Der Deckel 2 weist mittig eine Vertiefung 24 für die Aufnahme von Be­tätigungs- und Halteorganen auf.The cover 2 is formed from a disk-shaped middle piece 21 made of gray cast iron and an annular jacket 4 surrounding the middle piece 21 made of polyurethane. For the support in the cover seat 3 and for stabilization, the jacket 4 is supplemented to a collar 23. It is possible on the inside of the Cover 2 reinforcement ribs. The outer surface 22 of the cover 2 lies flush with the end face 16 of the ring 13. The cover 2 has a recess 24 in the center for receiving actuating and holding members.

Claims (3)

1. Straßenkappe mit einem im wesentlichen hohlzylin­drischen Rahmen, der an einer Stirnseite unter Bildung eines Deckelsitzes zu einem Ring aufge­weitet ist, und mit einem Deckel, der mit seinem Mantel von dem Deckelsitz aufgenommen ist, dadurch gekennzeichnet, daß der Deckelsitz (3) und/oder der Mantel (4) aus Polyurethan herge­stellt sind.1. Street cap with a substantially hollow cylindrical frame which is widened to form a ring on one end face to form a cover seat, and with a cover which is received with its jacket by the cover seat, characterized in that the cover seat (3) and / or the jacket (4) is made of polyurethane. 2. Straßenkappe nach Anspruch 1, dadurch gekenn­zeichnet, daß der aus Grauguß bestehende Rahmen (1) im Bereich des Deckelsitzes (3) mit einer napfartigen Ausnehmung (12) versehen ist, die mit Polyurethan ausgefüllt ist.2. Street cap according to claim 1, characterized in that the frame made of gray cast iron (1) in the region of the cover seat (3) is provided with a cup-like recess (12) which is filled with polyurethane. 3. Straßenkappe nach Anspruch 1, dadurch gekenn­zeichnet, daß der Deckel (2) aus einem scheiben­förmigen Mittelstück (21) aus Grauguß und dem das Mittelstück umgebenden ringförmigen Mantel (4) aus Polyurethan gebildet ist.3. Street cap according to claim 1, characterized in that the cover (2) from a disc-shaped central piece (21) made of gray cast iron and the annular shell surrounding the central piece (4) is formed from polyurethane.
EP88103475A 1987-05-04 1988-03-05 Manhole cover Expired - Lifetime EP0289736B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88103475T ATE62953T1 (en) 1987-05-04 1988-03-05 STREET CAP.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8706349U 1987-05-04
DE8706349U DE8706349U1 (en) 1987-05-04 1987-05-04 Street cap

Publications (2)

Publication Number Publication Date
EP0289736A1 true EP0289736A1 (en) 1988-11-09
EP0289736B1 EP0289736B1 (en) 1991-04-24

Family

ID=6807633

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88103475A Expired - Lifetime EP0289736B1 (en) 1987-05-04 1988-03-05 Manhole cover

Country Status (3)

Country Link
EP (1) EP0289736B1 (en)
AT (1) ATE62953T1 (en)
DE (2) DE8706349U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2427426A (en) * 2005-06-21 2006-12-27 Clark Drain Ltd Access cover lid for a manhole
EP3763879A1 (en) * 2019-07-11 2021-01-13 KSK Kunststoff-Straßenkappen GmbH Device for preferably flush mounting in a road surface

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29808066U1 (en) * 1997-11-03 1998-08-27 Neef, Claus, 57234 Wilnsdorf Street cap cover
DE202011109998U1 (en) 2011-04-27 2012-09-21 Burger-Armaturen Gmbh Surface box
DE102019210288A1 (en) * 2019-07-11 2021-01-14 KSK Kunststoff-Straßenkappen GmbH Device for preferably flush installation in the road surface

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH446210A (en) * 1966-04-05 1967-10-31 Von Roll Ag Manhole cover and process for their manufacture
DE2710922A1 (en) * 1977-03-12 1978-09-14 Streicher M Kg Manhole cover with sound deadening ring - has U=shaped ring with unequal limbs between cover and encircling frame
DE8125409U1 (en) * 1981-09-01 1982-01-07 Burger-Armaturen GmbH, 5840 Schwerte ROAD CAP

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH446210A (en) * 1966-04-05 1967-10-31 Von Roll Ag Manhole cover and process for their manufacture
DE2710922A1 (en) * 1977-03-12 1978-09-14 Streicher M Kg Manhole cover with sound deadening ring - has U=shaped ring with unequal limbs between cover and encircling frame
DE8125409U1 (en) * 1981-09-01 1982-01-07 Burger-Armaturen GmbH, 5840 Schwerte ROAD CAP

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2427426A (en) * 2005-06-21 2006-12-27 Clark Drain Ltd Access cover lid for a manhole
GB2427426B (en) * 2005-06-21 2010-01-06 Clark Drain Ltd Access cover lid for manholes
EP3763879A1 (en) * 2019-07-11 2021-01-13 KSK Kunststoff-Straßenkappen GmbH Device for preferably flush mounting in a road surface

Also Published As

Publication number Publication date
EP0289736B1 (en) 1991-04-24
ATE62953T1 (en) 1991-05-15
DE8706349U1 (en) 1987-07-02
DE3862512D1 (en) 1991-05-29

Similar Documents

Publication Publication Date Title
DE2743737A1 (en) METHOD AND DEVICE FOR THE ESTABLISHMENT OF ESSENTIAL DOME-SHAPED CONSTRUCTIONS OR THE LIKE, AND CONSTRUCTION CONSTRUCTED THEREFORE
EP0289736B1 (en) Manhole cover
DE2925411A1 (en) MAGNETIC COMPASS
EP0372545A2 (en) Manhole cover made of pig iron and concrete
EP0838553B1 (en) Manhole closure
DE4236193A1 (en) Underground-drain access shaft - is in plastic annular sections forming double wall filled with free-flowing and hardening material
DE3936929C1 (en)
EP0108164B1 (en) Process for manufacturing a weigh bridge and assembly unit with a load cell, especially for use in carrying out the process
DE8125409U1 (en) ROAD CAP
EP0132815B1 (en) Device for use with manipulation anchors of prefabricated concrete elements
DE1092637B (en) Manhole seated on a thin-walled storage container
DE9408599U1 (en) Street cap
DE1888659U (en) Protective device for amplifier housings in electrical communications engineering
DE3227512A1 (en) Consumable shielding container for radioactive waste
DE102008044659A1 (en) Water or wastewater tank
DE864261C (en) Arrangement for stiffening axially loaded, essentially circular and flat discs
DD270835A3 (en) RING CHANNEL GRANDAQUARIUM
DE1954882U (en) ROAD CAP.
DE69823021T2 (en) Nuclear reactor plant and method for producing a nuclear reactor plant
DE8116892U1 (en) COVER FOR A CHAMBER COVER
DE2833912C2 (en) Circular manhole cover made of cast iron and concrete
DE2429470A1 (en) Frame for manhole covers and road drains - is made of cast iron and small amount of concrete in cavity in lid
DE29905199U1 (en) Compensation ring for manhole covers and the like.
DE7115418U (en) Ring seal, especially for a filling element of a ring tank beer filling machine
DE202011109998U1 (en) Surface box

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE LI

17P Request for examination filed

Effective date: 19890419

17Q First examination report despatched

Effective date: 19890719

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE LI

REF Corresponds to:

Ref document number: 62953

Country of ref document: AT

Date of ref document: 19910515

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3862512

Country of ref document: DE

Date of ref document: 19910529

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030324

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20030325

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20030417

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040331

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041001

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL