Michael P Schaeffer

US Patent:

55795854, Dec 3, 1996

Filed:

Oct 17, 1994

Appl. No.:

8/323935

Inventors:

Michael Schaeffer - Atlanta TX

International Classification:

G01C 1506
G01B 1126

US Classification:

33295

Abstract:

An apparatus that projects the horizontal and vertical axis of an object to be aligned for ready sighting by survey instruments is disclosed. The device consists of a v-frame with a rotatable head to which a target platform for mounting a vertical or horizontal scale may be affixed. The v-frame is held on the object and moved about the object until the surveyor can see the target scale without having to remove ancillary equipment that would ordinarily obscure the target. Standard surveying methods may then be used to align the object.

US Patent:

20170045180, Feb 16, 2017

Filed:

Aug 10, 2015

Appl. No.:

14/822572

Inventors:

Michael Edward Schaeffer - Atlanta TX, US

International Classification:

F16M 11/24
F16M 11/16
F16M 11/04

Abstract:

A survey tripod assembly kit is disclosed that is easily adjustable in small increments to stable operational heights ranging from a few inches to eight feet or more and that can be easily disassembled and packed into a luggage-sized carrying case that is easily transportable from site to site. The subject survey tripod assembly desirably includes an instrument support plate, a plurality of cooperatively engageable leg sections comprising at least three leg sections of each of a plurality of different lengths that are each configured to be joined in threaded engagement to another leg section or to the instrument support plate, and three swiveling adjustable feet that are each configured to be joined in threaded engagement with at least one leg section or with the instrument support plate. A survey tripod assembly made from the subject kit is also disclosed.