Prism pole for a surveying system
OwnerBradley C. Burgess, Joseph D. Eskerinventors
Life of this patent
Estimating the term…
Abstract
The prism pole consists of an extensible aluminum pole that can be adjusted between a length of 30 and 47 inches. The pole has a hardened steel point on one end thereof and a prism assembly on its opposite end. The prism pole also has a steel point mounted to the prism assembly such that the pole can be turned "upside down" placing the prism assembly approximately 4 inches from the point being measured. To assist in plumbing the prism pole, two level vials are provided, the first being observable when the pole is in the upright position and the second being observable when the pole is in the upside down position.
Claims2
An improved prism pole for use in a surveying system, comprising:
- a) a pole having a first point at one end thereof and a prism assembly at the opposite end thereof, said first point being engageable with a point being located to orient the prism assembly in a first position;
- b) a second point mounted adjacent the prism assembly, said second point being engageable with the point being located to orient the prism assembly in a second position;
- and
- c) first and second level vials mounted on said pole such that the first level vial is observable when said prism assembly is in the first position and said second vial is observable when said prism assembly is in the second position.
Dependencies are inferred from the claim text.