The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2001
Filed:
May. 17, 2000
Ronald L. Thomas, Frankston, TX (US);
Other;
Abstract
A hollow shaft hunting arrow carries a small volume of liquified carbon dioxide which is released by flash expansion upon penetration into the thorax of a game animal. The thorax is pressurized with carbon dioxide gas at sub-zero temperature to cause collapse of the lungs and fibrillation of the heart, so that the animal can be harvested on the spot, thus avoiding escape and uncertain recovery. The liquified carbon dioxide is carried in an internal reservoir and is released by flash expansion upon opening actuation of a valve closure member. The arrowhead includes a freely movable center core which is attached to an actuator shaft that is engagable with a release valve. The release valve is actuated by either piercing a metallic membrane, fracturing a glass or ceramic lens or unseating the ball closure of a ball valve assembly. A small amount of fluorescent dye is introduced into the liquified carbon dioxide which provides a marker in the blood trail left by a wounded animal which will fluoresce or glow when exposed to ultraviolet light.