Break-away sectionalized driven rod

Static structures (e.g. – buildings) – Land marker or monument

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

52726, 52585, E01F 902

Patent

active

044412886

ABSTRACT:
A sectionalized attachable rod survey monument of the type which is driven into the ground has a lower anchor pilot rod section and an upper rod section made of a solid aluminum alloy. An axial hole is drilled in the upper end of the pilot rod section and the lower end of the upper rod section to accept a stainless steel roll pin, and the two rods are separated by a stainless steel spacer washer. The spring pin becomes compressed when it is inserted into the holes in the ends of the rods and holds them together. The rods cannot physically be pulled apart under normal use; but when the upper rod is mechanically disturbed, such as when it is hit by road equipment or vandalized, the rods separate from one another. A permanent magnet is carried in the bottom of the hole in the lower pilot rod to permit detection of the marker location whenever the upper rod does become separated from the lower pilot rod. By using stainless steel for the spring pin and the spacer washer, metallurgical fusion between the two rod sections is prevented; so that they may be separated even after they have been in the ground for a considerable length of time.

REFERENCES:
patent: 825069 (1906-07-01), Peirce
patent: 2527681 (1950-10-01), Lewis et al.
patent: 3377765 (1968-04-01), Greeley
patent: 3437059 (1969-04-01), Stonier et al.
patent: 4087945 (1978-05-01), Berntsen et al.
patent: 4254597 (1981-03-01), Feldman et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Break-away sectionalized driven rod does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Break-away sectionalized driven rod, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Break-away sectionalized driven rod will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-886555

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.