Surveyor's monument

• US 4,185,425 A
• Filed: 09/05/1978
• Issued: 01/29/1980
• Est. Priority Date: 09/05/1978
• Status: Expired due to Term

• Current Assignee: Jon A. Merkel
• Original Assignee: Jon A. Merkel
• Inventors: Merkel, Jon A.
• Primary Examiner(s): Perham, Alfred C.
• Application Number:
  US05/939,255
• Time in Patent Office: 511 Days
• Field of Search: 33/293, 85/36, 52/103,104
• US Class Current: 52/103
• CPC Class Codes: G01C 15/04 Permanent marks; Boundary markers

Abstract

A new surveyor'"'"'s monument characterized by its permanent connection with the ground, including an elongated metal stake and a plastic form monument permanently affixed on the upper portion of the stake. The monument member includes a hollow tube with a locking means at the upper end thereof and fixedly attached to said upper end by a plastic cap. The hollow tube is permanently embedded in the said plastic monument, said tube and locking means engaging the upper end of the stake.

Claims

1. A surveyor'"'"'s monument compromising a body made of rigid synthetic material, having a central core therein adapted for placement on the top of a conventional surveyor'"'"'s metal stake, said stake having a slightly tapered upper end, said central core compromising (a) a section of tubing made of a synthetic material complementary to the rigid body of the surveyor'"'"'s monument, (b) a stake locking means, placed over the upper end of said tube, said stake locking means having an opening therein smaller than the diameter of said stake and through which said stake is pressed to permanently affix said means to said stake, (c) and a means for securing said stake locking means to the upper end of said tube in such a fashion as to prevent the passage into said tube during the manufacturing process of the plastic material which forms the surveyor'"'"'s monument body, the central core of said surveyor'"'"'s monument compromised of parts (a), (b), and (c), being completely surrounded by the synthetic material compromising the body of the surveyor'"'"'s monument.

2. The surveyor'"'"'s monument as in claim 1 wherein the outer surface of the monument body has a coating of a pigmented polyester gel coat.

3. The surveyor'"'"'s monument as in claim 1 wherein the said synthetic material making up the body of said monument is a polyurethane foam.

4. A surveyor'"'"'s monument as in claim 3 wherein the said securing means for securing the said stake locking means to the upper end of said tube consists of a rigid cap which is securely affixed to the upper end of said tube having the stake locking means thereon.

5. The surveyor'"'"'s monument of claims 4 wherein the said tube component of the central core is made of a plastic PVC material and is of an inner diameter slightly greater than the outer diameter of the metal stake over which said monument is placed.

6. A surveyor'"'"'s monument as in claim 3 wherein the stake locking means consists of a metal cap having flanged edges which engage the upper end of said tube, said cap having an opening therein with an inner diameter at least equal to the inner diameter of said tube and a depth of sufficient size to receive the tapered upper end of the metal stake, said stake locking means also having at least one metal finger or portion protruding accross the opening in said metal cap in a vertical oblique angle in such a configuration that when the tapered upper end of said stake protrudes through the said opening in the said metal cap, the said angled metal finger or portion permanently engages said upper end of said stake to prevent is removal from said metal cap.