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Title: Racket for tennis and similar games
Claims: What is claimed is: 1. A game racket including: an annular head portion composed of a resilient material; a first string for the racket looped through holes in the head portions in a first series of passes extending transversely across the area circumscribed by the head portion, and a second string for the racket looped through holes in the head portion in a second series of passes extending longitudinally across the area circumscribed by the head portion; an elongated handle affixed to the head portion; a neck portion interposed between the handle and the head portion; first and second arms each extending partially around the opposite sides of said head portion on the outer peripheral surface thereof a limited distance adjacent said neck portion, said arms being coupled to the adjacent ends of said second series of passes; and an adjusting means attached to said arms to produce sliding movement of said arms relative to said head portion along the outer peripheral surface thereof to pull said second series of passes into tension by differential amounts proportional to the individual lengths of the passes of said second series, thereby to compress said head portion and cause said head portion to extend its lateral dimensions, thereby to pull said passes of said first series into tension by differential amounts proportional to the individual lengths of said passes of said first series, so as to distribute the load applied thereto and thereby to pull the first series of passes into tension corresponding to the tension of the second series of passes. 2. The racket defined in claim 1, in which each of said arms is encased in a plastic casing having grooves therein for receiving the ends of said passes of said second series. 3. The racket defined in claim 1, in which said elongated handle is generally hollow, and in which said adjusting means is mounted in said handle adjacent the remote end thereof. 4. The racket defined in claim 1, in which said adjusting means is mounted in said neck portion between said head portion and the adjacent end of said elongated handle. 5. The racket defined in claim 1, and which includes pivot means interconnecting said arms within said neck portion, a pull rod connected at one end to said pivot means, a plug threaded to the remote end of said pull rod by a first series of threads, a socket mounted on said racket in coaxial relationship with said plug and said rod, said socket threadably receiving said plug by a second series of threads, in which the numbers of threads per inch of the first and second series are different to create a mechanical advantage to the adjusting means. 6. The racket defined in claim 5, in which said plug and socket are mounted in said neck portion. 7. A game racket including: an annular head portion composed of a resilient material; a first string for the racket looped through holes in the head portion in a first series of passes extending transversely across the area circumscribed by the head portion, and a second string for the racket looped through holes in the head portion in a second series of passes extending longitudinally across the area circumscribed by the head portion; an elongated handle affixed to the head portion; a neck portion interposed between the handle and the head portion; first and second arms each extending partially around the opposite sides of said head portion a limited distance adjacent said neck portion, said arms being coupled to the adjacent ends of said second series of passes; and adjusting means attached to said arms to produce sliding movement of said arms relative to said head portion along the peripheral surface thereof to pull said second series of passes into tension by differential amounts proportional to the individual lengths of the passes of said second series, thereby to compress said head portion and cause said head portion to extend its lateral dimensions, thereby to pull said passes of said first series into tension by differential amounts proportional to the individual lengths of said passes of said first series, so as to distribute the load applied thereto and thereby to pull the first series of passes into tension corresponding to the tension of the second series of passes, and a pull rod connected to said arms, a plug threaded to the remote end of said pull rod by a first series of threads, a socket mounted on said racket in coaxial relationship with said plug and said rod, said socket threadably receiving said plug by a second series of threads, and in which the numbers of threads per inch are of the first and second series are different to create a mechanical advantage to the adjusting means. 8. A game racket including: an annular head portion composed of a resilient material; a first string for the racket looped through holes in the head portion in a first series of passes extending across the area circumscribed by the head portion, and a second string for the racket looped through holes in the head portion in a second series of passes extending transversely of the first series across the area circumscribed by the head portion; an elongated handle affixed to the head portion; adjusting means attached to the passes of the second series for tensioning the strings; a pull rod connected to said adjusting means and extending coaxially with said handle; a rotatable plug threaded to the remote end of said pull rod by a first series of threads; and a socket threadably receiving said rotatable plug by a second series of threads, in which the numbers of threads per inch of the first and second series are different to create a mechanical advantage to the adjusting means. Other info: Inventors: Stevens, Robert (Newport Beach, CA, US) Application Number: 344751 Filing Date: 1973-03-26 Publication_date: 1977-03-22 Assignee: Primary Class(es): 473/534 Other Classes: US Patent Ref:
Other Refs:
Primary Examiner: Apley, Richard J. Assistant Examiner: Attorney: Beecher; Keith D. |
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