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:
May. 27, 1986
Filed:
Nov. 14, 1984
Randy D Sines, Oxnard, CA (US);
Bruce W Farber, Oak View, CA (US);
Karakal Corp. of the Americas, Oxnard, CA (US);
Abstract
The present invention makes use of tension transmitting device between an outward head frame surface and string chords such that tension along one string chord can be transmitted through the tension transmitting device to the next adjacent string chord. Transmission of tension allows strain energy to be stored in several string chords instead of only those directly contacted by the impacting object. This results in larger string deflection with a smaller increase in string tension. A first form of the tension transmitting device is an independent rocker member that can be received between the string as it wraps over the outer racket head surface between adjacent holes. The rockers receive the string along top rocker surfaces. Bottom rocker surfaces are substantially cylindrical for friction-free rocking engagement against the outer surface of the racket head frame. Tension applied along one of the string chord segments will therefore be directly transmitted through rocking motion of the rocker device to the adjacent string chords throughout the entire string length.