SURVEY MONUMENTS OF FRANGIBLE SECTIONS

• US 3,748,795 A
• Filed: 02/24/1972
• Issued: 07/31/1973
• Est. Priority Date: 02/24/1972
• Status: Expired due to Term

• Current Assignee: Peter Berntsen
• Original Assignee: Peter Berntsen
• Inventors: Berntsen, Peter
• Primary Examiner(s): Abbott, Frank L.
• Assistant Examiner(s): Braun, Leslie A.
• Application Number:
  US05/229,129
• Time in Patent Office: 523 Days
• Field of Search: 52/98,154,103-105,726,DIG.4,737-739 94/1.5 40/145 248/156 256/13.1
• US Class Current: 52/98
• CPC Class Codes: G01C 15/04 Permanent marks; Boundary markers
• CPC Class Codes: Y10S 52/04 Magnetic connecting means for building components

Abstract

A light-weight extendable survey monument. The metal-alloy monument standard is made up of a plurality of integral undulating webs connecting top and base flanges and having a carrying handle formed in one of the webs. The webs have vertically spaced transverse lines of weakness formed therein. The monument has one or more permanent magnets, at least one which is positioned below the lowermost line of weakness. A cap is received on a threaded stud extending from the top end of the standard. Extension elements are provided for placement between the cap and standard for spacing the cap in extended relation on the standard. The base has a depending centering point.

Claims

1. A light-weight aluminum-alloy survey monument comprising:

a. an elongate standard having, 1. top and base flanges disposed substantially transverse to the longitudinal axis of the standard, 2. a plurality of longitudinally extending radially disposed integral webs connecting said top and base flanges, each of said webs being continuous between said top and base flanges and having an undulating shaped outer edge, the undulations of each web being in alternating phase relation with the undulations of each next adjacent web, and 3. a plurality of vertically spaced lines of weakness formed in said webs, b. a cap attached at the top of said standard, and c. at least one permanent magnet affixed to said standard.

2. The light-weight aluminum-alloy survey monument as specified in claim 1 having an opening formed in one of said webs near the mid-portion of said standard providing a handle portion on said standard intermediate its ends.

3. a plurality of vertically spaced lines of weakness formed in said webs, b. a cap attached at the top of said standard, and c. at least one permanent magnet affixed to said standard.