Tree stand rangefinder and method of using the same
OwnerJohn M. Davidinventor
Life of this patent
Estimating the term…
Abstract
A hand held device adapted to be used by an archer situated in an elevated position to aid in the determination of the approximate ground distance to a stationary or moving target in a simple and efficient manner in order that he might thereby increase his chances of hitting the target.
Claims18
A distance measuring device including a base member, means connected to said base member for suspending the same in a vertical position, a pair of spaced opposed pins disposed on said base member, with one of said pins indicating a ground distance to be determined and the other being a sight pin, support means disposed on said base member between said pins, indicia markings spaced along said support means indicating differing heights above ground level, and an adjustable pin means mounted for movement with respect to said support means and to said markings to designate an above-ground height whereby said sight pin sequentially cooperates with said one pin and said adjustable pin when said base member is held in suspension to determine a maximum distance and a second distance therewithin.
A self-contained hand-held device for measuring distance from an above-ground position, comprising:
- a) a support member;
- b) first and second projection members on said support member for measuring a preselected distance;
- c) said first projection member including a sight pin;
- d) means associated with said second projection member for indicating an above-ground height;
- and
- e) means for suspending the device freely in a vertical plane;
- f) whereby when the device suspends freely in a vertical plane, said first and second projection members cooperate spatially to point a location corresponding to said preselected distance.
Dependencies are inferred from the claim text.