DK11692A
Expired / Lapsed
DK
⏱️ 0.0 years remaining
PROCEDURE AND APPARATUS FOR DRIVING BEETS IN EARTH
Assignee: Helmuth Roemer
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Filing: 1992-01-31
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Granted: —
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Expires: 2012-01-31
Abstract
Abstract Method of laying underground pipes in which an oscillating movement in the longitudinal direction is superimposed on the driving movement of the pipe (14), characterised in that the oscillating movement takes place with a greater stroke speed in the driving direction than in the opposite direction. <IMAGE>
Inventors
- 👤 Helmuth Roemer
Bibliographic Details
Application Number
—
Jurisdiction
DK
Data Source
google_patents
Last Synchronized
2026-11-03 12:40
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/24
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