DK135390A - ROOM RENOVATION APPLIANCE - Google Patents

ROOM RENOVATION APPLIANCE Download PDF

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Publication number
DK135390A
DK135390A DK135390A DK135390A DK135390A DK 135390 A DK135390 A DK 135390A DK 135390 A DK135390 A DK 135390A DK 135390 A DK135390 A DK 135390A DK 135390 A DK135390 A DK 135390A
Authority
DK
Denmark
Prior art keywords
hammer head
pipe
drawn
pipeline
new
Prior art date
Application number
DK135390A
Other languages
Danish (da)
Other versions
DK163592C (en
DK135390D0 (en
DK163592B (en
Inventor
Gunnar Guldbrand
Original Assignee
Gunnar Guldbrand
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
Priority claimed from DK264589A external-priority patent/DK264589D0/en
Application filed by Gunnar Guldbrand filed Critical Gunnar Guldbrand
Priority to DK135390A priority Critical patent/DK163592C/en
Publication of DK135390D0 publication Critical patent/DK135390D0/en
Publication of DK135390A publication Critical patent/DK135390A/en
Publication of DK163592B publication Critical patent/DK163592B/en
Application granted granted Critical
Publication of DK163592C publication Critical patent/DK163592C/en

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  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

An apparatus for pipe renovation, in particular for use in pipe renovation in existing underground systems such as sewer and waste water pipeline systems, comprising a hammer head 1 which, by means of a winch 30, is drawn through the existing pipeline 6 and breaks the latter in two and displaces the pipe broken in two out into the surrounding ground, and in which a new pipe 7 can be fastened to the hammer head 1 so as to be drawn through the existing pipeline 6 simultaneously, is described. A hammer head design of considerably reduced length and diameter which is considerably easier to control and also capable of being drawn backwards so that stopping work and drawing backwards is possible along the way has a hammer head 1 consisting of two components 10; 20, 200 fitting one inside the other, one component 10 having an external diameter which is smaller than the internal diameter of the pipeline, that is to say the internal diameter of the new pipe 7, and the other component 20, 200 being mountable on the end of the new pipe 7 and comprising externally a breaking surface which forms a transition surface from the front end of the hammer head 10, 32, 31 connected to the winch 30 and the outer surface of the new pipe 7, or the outer surface of the new laying duct. A number of more specific embodiments of the components (for instance of 10; 20, 200) of the hammer head 1 are also described in greater detail. <IMAGE>
DK135390A 1989-05-31 1990-05-31 ROOM RENOVATION APPLIANCE DK163592C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK135390A DK163592C (en) 1989-05-31 1990-05-31 ROOM RENOVATION APPLIANCE

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DK264589A DK264589D0 (en) 1989-05-31 1989-05-31 ROOM RENOVATION APPLIANCE
DK264589 1989-05-31
DK135390 1990-05-31
DK135390A DK163592C (en) 1989-05-31 1990-05-31 ROOM RENOVATION APPLIANCE

Publications (4)

Publication Number Publication Date
DK135390D0 DK135390D0 (en) 1990-05-31
DK135390A true DK135390A (en) 1990-12-01
DK163592B DK163592B (en) 1992-03-16
DK163592C DK163592C (en) 1992-08-10

Family

ID=26065633

Family Applications (1)

Application Number Title Priority Date Filing Date
DK135390A DK163592C (en) 1989-05-31 1990-05-31 ROOM RENOVATION APPLIANCE

Country Status (1)

Country Link
DK (1) DK163592C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993013351A1 (en) * 1991-12-31 1993-07-08 Kayes Allan G Soil displacement hammer for replacing underground pipes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993013351A1 (en) * 1991-12-31 1993-07-08 Kayes Allan G Soil displacement hammer for replacing underground pipes

Also Published As

Publication number Publication date
DK163592C (en) 1992-08-10
DK135390D0 (en) 1990-05-31
DK163592B (en) 1992-03-16

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