Shuttlecock and method of making the same
Abstract
Abstract A SHUTTLECOCK HAVING A FLEXIBLE SKIRT INCLUDING A FLARED ARRAY OF STEMS, A VANE AREA AND A STEM-EXTENSION COLLAR, IS MOULDED FROM NYLON, THE ASSEMBLY FORMING A ONE-PIECE STRUCTURE. THE STEM-EXTENSION COLLAR IS CYLINDRICALLY BUT IS CURLED OR STRAIGHT FLANGE, RIM OR ENLARGEMENT IS FORMED ON ITS OUTER END, EITHER IN THE MOULD OF PREFERABLY, AFTER REMOVAL THEREFROM. A STRIKING CAP MADE OF EXPANDED POLYVINYL CHLORIDE IS SLIPPED OVER THE OUTER END OF THE STEM-EXTENSION COLLAR. THE CAP THEN STARTS TO SHRINK AND AS A RESULT OF THIS SHRINKAGE A GROOVE IS FORMED ON THE INNER WALLS OF THE CAP, THE ANNULAR FLANGE, RIM OR ENLARGEMENT THEN FITTING SNUGLY IN SAID GROOVE AND LOCKING THE CAP AGAINST ANY RECTILLINEAR MOVEMENT OR REMOVAL. BUT THE CAP MAY BE ROTATED ON ITS AXIS, HENCE THROUGH FIRMLY SECURED IS NOT RIDIGLY MOUNTED. THIS SPIN-ABILITY OF THE CAP IS AN ADVANTAGEOUS FEATURE WHEN PLAYING BADMINTON.
Inventors
- 👤 William Charles Carlton
Bibliographic Details
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