DK214789D0 - Castings with a chip that can be knocked out - Google Patents

Castings with a chip that can be knocked out

Info

Publication number
DK214789D0
DK214789D0 DK214789A DK214789A DK214789D0 DK 214789 D0 DK214789 D0 DK 214789D0 DK 214789 A DK214789 A DK 214789A DK 214789 A DK214789 A DK 214789A DK 214789 D0 DK214789 D0 DK 214789D0
Authority
DK
Denmark
Prior art keywords
slug
zone
wall
cross
section
Prior art date
Application number
DK214789A
Other languages
Danish (da)
Other versions
DK214789A (en
DK172195B1 (en
Inventor
Jean-Claude Hauer
Alain Percebois
Original Assignee
Pont A Mousson
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 Pont A Mousson filed Critical Pont A Mousson
Publication of DK214789D0 publication Critical patent/DK214789D0/en
Publication of DK214789A publication Critical patent/DK214789A/en
Application granted granted Critical
Publication of DK172195B1 publication Critical patent/DK172195B1/en

Links

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
    • E02D29/14—Covers for manholes or the like; Frames for covers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings

Abstract

The invention relates to a casting (1) comprising a body having a wall (2) equipped with at least one slug (3) breakable by knocking so as to expose an orifice (4) through said wall (2) in place of said slug (3). The slug (3) is fixed to a resistant zone (5) of the wall (2) of the body by means of a breakable zone (6) surrounded by said resistant zone (5), the cross-section of this breakable zone (6), which connects the slug (3) to the resistant zone, being substantially reduced in relation to the cross-section of this resistant zone (5) and in relation to the cross-section of the slug (3). Moreover, the slug (3) is located completely outside the space defined by the two planes P1 and P2 between which the resistant zone (5) is inscribed. <IMAGE>
DK214789A 1988-05-05 1989-05-02 Castings with a knock-out piece DK172195B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8806047 1988-05-05
FR8806047A FR2630942B1 (en) 1988-05-05 1988-05-05 FOUNDRY PIECE PROVIDED WITH A BREAKABLE PELLET

Publications (3)

Publication Number Publication Date
DK214789D0 true DK214789D0 (en) 1989-05-02
DK214789A DK214789A (en) 1989-11-06
DK172195B1 DK172195B1 (en) 1997-12-22

Family

ID=9366022

Family Applications (1)

Application Number Title Priority Date Filing Date
DK214789A DK172195B1 (en) 1988-05-05 1989-05-02 Castings with a knock-out piece

Country Status (9)

Country Link
EP (1) EP0341179B1 (en)
AT (1) ATE70870T1 (en)
DE (1) DE68900596D1 (en)
DK (1) DK172195B1 (en)
ES (1) ES2024392T3 (en)
FR (1) FR2630942B1 (en)
GR (1) GR3003446T3 (en)
NO (1) NO170200C (en)
PT (1) PT90442B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT234061B (en) * 1962-08-20 1964-06-10 Kaiserslautern Guss Armatur Cover-like closure body made of cast iron for manhole openings
DE7800397U1 (en) * 1978-01-07 1978-05-03 Passavant-Werke Michelbacher Huette, 6209 Aarbergen LID FOR MANHOLE COVERS
CY1267A (en) * 1980-10-27 1984-11-23 Dover Eng Works Ltd Manufacturing manhole cover frames

Also Published As

Publication number Publication date
DK214789A (en) 1989-11-06
EP0341179B1 (en) 1991-12-27
NO891807D0 (en) 1989-05-02
EP0341179A1 (en) 1989-11-08
GR3003446T3 (en) 1993-02-17
ES2024392T3 (en) 1992-08-16
NO170200B (en) 1992-06-15
DE68900596D1 (en) 1992-02-06
ES2024392A4 (en) 1992-03-01
NO170200C (en) 1992-09-23
DK172195B1 (en) 1997-12-22
PT90442A (en) 1989-11-30
PT90442B (en) 1994-05-31
NO891807L (en) 1989-11-06
ATE70870T1 (en) 1992-01-15
FR2630942A1 (en) 1989-11-10
FR2630942B1 (en) 1991-04-05

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Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PBP Patent lapsed

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