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:
Nov. 18, 1980
Filed:
Feb. 06, 1978
Tom P Airhart, Hurst, TX (US);
Skyline Industries, Inc., Fort Worth, TX (US);
Abstract
A carbon fiber-reinforced plastic arrow is disclosed having a tubular shaft with a length of from 25 to 32 inches, a wall thickness of from 0.022 to 0.032 inch and an internal diameter of from 0.19 to 0.26 inch, the shaft having a stiffness measured by center deflection under a two pound center load of from 0.25 to 0.7 inch. The tubular shaft is constructed of carbon fiber-reinforced plastic to include an interior section in which the carbon fibers run in two directions, each balanced with respect to the other, of at least 30.degree. to the axis of the arrow, and an outer section in which substantially all of the fibers are parallel to the axis of the arrow, and the arrow includes a head having a weight of from 45% to 60% of the weight of the shaft.