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:
Apr. 01, 1986
Filed:
Sep. 29, 1983
Raymond L Mortvedt, La Mesa, CA (US);
Ektelon, San Diego, CA (US);
Abstract
A molded composite racquet is provided, wherein the frame of the entire racquet is prepared using the combination of continuous graphite fibers longitudinal within the shape of the frame, wrapped in a bias arrangement with layers of fiberglass, that combination being covered by a protective resinous outerlayer. The presence of the graphite fiber in a unidirectional orientation around the hoop of the racquet in the plane of the strings increases the resistance against compression with minimal affect on the flexibility, bending or torsion, of the racquet. The concentric and bias orientation of the fiberglass layer supplies sturdiness to increase the resistance to torsion and bending stress. The molded composite racquet achieves a controlled impulse duration during impact with a game ball which provides greater control during impact and less shock to the user of the racquet during the recreation.