Removable gas line marker system
First Claim
Patent Images
1. A marker system comprising:
- a marker post holder;
a passage formed in the holder and having an upper entrance opening;
the passage adapted to removably receive therein a marker post via the upper entrance opening; and
a first connector member carried by the holder and adapted for releasably connecting the holder to a tube with a portion of the holder extending over an upwardly opening interior chamber formed in the tube;
the tube adapted to be positioned underground with its interior chamber communicating with above ground atmosphere.
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Abstract
A marker post system for marking the location underground pipelines includes marker post holder which removably holds a marker post. The marker post holder is configured for releasable connection with an underground tube. Removal of the holder from the tube provides manual access to the interior chamber of the tube to facilitate cleaning the interior chamber and removing a broken segment of a marker post which otherwise would be difficult without digging up the tube. A substantially watertight seal is preferably provided between the holder and marker post to prevent water from entering the interior chamber of the underground tube.
39 Citations
20 Claims
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1. A marker system comprising:
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a marker post holder; a passage formed in the holder and having an upper entrance opening;
the passage adapted to removably receive therein a marker post via the upper entrance opening; anda first connector member carried by the holder and adapted for releasably connecting the holder to a tube with a portion of the holder extending over an upwardly opening interior chamber formed in the tube;
the tube adapted to be positioned underground with its interior chamber communicating with above ground atmosphere. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A marker system comprising:
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a tube defining an interior chamber having an upper entrance opening;
the tube adapted to be positioned underground with its interior chamber communicating with above ground atmosphere;a marker post holder releasably connected to the tube and comprising a portion extending over the interior chamber; a passage formed in the holder adjacent the upper entrance opening; and an annular sealing member forming a substantially watertight seal with the holder and defining a through opening which communicates with the passage and is adapted to receive therethrough the marker post to form a substantially watertight seal with the marker post.
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20. A marker system comprising:
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a tube defining an interior chamber having an upper entrance opening;
the tube adapted to be positioned underground with its interior chamber communicating with above ground atmosphere;a marker post holder releasably connected to the tube and comprising a portion extending over the interior chamber; a passage formed in the holder adjacent the upper entrance opening; and a plurality of engaging members within the interior chamber adapted to engage a marker post inserted into the interior chamber via the passage.
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Specification