Abstract: A billiard cue shaft includes a shaft body having first and second ends, a longitudinal axis and a first length. The shaft body includes a wooden rod and an outer layer of fiber reinforced plastic (FRP) wrapped around the surface of the wooden rod. The shaft body further includes a straight section with a first outer diameter and a second length, and a tapered section. The wooden rod has a bore with a predetermined inner diameter and a predetermined depth. The predetermined depth of the bore of the wooden rod is about 15% to 55% of the first length of the shaft body. The predetermined inner diameter of the bore of the wooden rod is about 51% to 81% of the first outer diameter of the straight section of the shaft body. The billiard cue shaft thereby has the advantage of natural wood and can decrease the deflection.

Abstract: A safety bat for striking balls or the like comprises a tubular body and a safety means. The tubular body extends along a longitudinal axis and includes a plurality of layers made of fiber-reinforced resin sheets. The safety means is disposed on the tubular body to eliminate the danger of damage caused by projectiles from the bat that breaks or shatters during use and such a safety means does not alter the bat's strength or performance.

Abstract: A ball bat body extends along a longitudinal axis and comprises a front section and a rear section. The front section includes a first tubular member and the rear section includes a second tubular member. The first tubular member is formed by a first fiber-reinforced resin sheet with a first connecting portion. The second tubular member is formed by a second fiber-reinforced resin sheet with a second connecting portion. The fibers of the first fiber-reinforced resin sheet extend in a first angle relative to the longitudinal axis of the bat body. The fibers of the second fiber-reinforced resin sheet extend in a second angle relative to the longitudinal axis of the bat body. The first connecting portion of the first fiber reinforced resin sheet and the second connecting portion of the second fiber reinforced resin sheet are linked up in an un-overlapping or overlapping way.

Abstract: A clipping device is used to clip and hold one eyeglass frame or multi-eyeglass frames. The clipping device comprises a base, an upper portion and a lower portion. The base includes a top side, a bottom side, a front surface and a back surface. The base, the upper portion and the lower portion are constructed to jointly define a receiving room with multi-receiving sections to hold and clip one frame or multi-frames for eyeglasses.

Abstract: A stringing means is made integrally with, or an independent device secured on, the throat of a badminton racket. The badminton racket includes a hoop-shaped head with a longitudinal axis, a shaft and a throat connecting the shaft to the head along the longitudinal axis thereof. The head of the racket defines a stringed hitting surface with a sweet zone. The stringing means comprises at least two guiding holes and a guiding channel. Each of the guiding holes is spaced apart in a predetermined distance and includes an opened outer end to be as a string inlet and an inner end connected with the guiding channel. When a badminton racket is equipped with such a stringing means, portions of the string chords for forming the sweet zone of the stringed hitting surface can thread through the means and extend in parallel with the longitudinal axis of the head.

Abstract: A stringing device for a sports racket includes a base and a cleat. The base has a pair of opposing side ends, an upper surface and a bottom surface. The base further has a guiding groove with an open end and a string engaging surface. The cleat extends downward from the bottom surface of the base and has a guiding channel with an inlet and an outlet. The inner diameter of the guiding channel is larger than the outer diameter of the racket string. The string engaging surface of the guiding groove has a suspending portion corresponding to the inlet of the guiding channel for guiding a racket string entering/exiting from the open end of the guiding groove to thread through the guiding channel from the inlet or outlet thereof without touching the inner wall of the guiding channel.

Abstract: A temple or a front section for eyeglasses that includes a tube with a longitudinal axis. The tube includes at least a layer made of fiber reinforced plastic materials. The layer has a plurality of fiber yarns being woven in such a way that each of fiber yarns extends in a predetermined angle relative to the longitudinal axis of the tube so that the temple or front section is lightweight, strong enough, and has a well elasticity.

Abstract: A hybrid material bat comprises an elongate shaft, a reinforcing member, a barrel body and a grip body. The shaft is made of rigid materials and includes a front portion, an intermediate portion and a rear portion. The barrel body is made of materials with good striking performance and includes a striking section for striking, impacting, or hitting and a mid-section. The grip body is made of resilient materials with good shock absorbing property, and has a front end and a terminal end. The reinforcing member is made of rigid materials and disposed on a distal end of said front portion of said shaft. The barrel body intimately surrounds the front portion of the shaft and the reinforcing member. The grip body intimately surrounds the rear portion of the shaft.

Abstract: A drumstick comprises an elongated rigid body having a front section, a shaft section and a handle section. The front section is made of wooden or bamboo materials and has a top end and a distal end. A striking tip is mounted on the top end. The handle section is also made of wooden or bamboo materials and has a front end and a butt end. The shaft section is made of composite materials and has a first end, and a second end. The first end of the shaft section is jointed to with the distal end of the front section. The second end of the shaft section is jointed to with the front end of the handle. The shaft section further includes a receiving room defined between the first and second ends for receiving vibration-absorbing devices or weights.

Abstract: A shaft for a lacrosse stick comprises an elongated tubular body and an outer layer. The body is made of rigid materials. The body can be constructed by one piece or a plurality of sections and have a top end for attachment to a lacrosse head and a butt end to be slipped onto by an end cap. The outer layer is made of elastic materials, such as plastic PU (polyurethane), foam materials which are wrapped around a predetermined portion of the body. The wall thickness of the body is designed in a range of 1.00 mm to 3.00 mm. The thickness of the outer layer is designed in Abstract a range of 0.50 mm to 3.00 mm.

Abstract: A hybrid material bat comprises an elongate shaft, a reinforcing member, a barrel body and a grip body. The shaft is made of rigid materials and includes a front portion, an intermediate portion and a rear portion. The barrel body is made of materials with good striking performance and includes a striking section for striking, impacting, or hitting and a mid-section. The grip body is made of resilient materials with good shock absorbing property, and has a front end and a terminal end. The reinforcing member is made of rigid materials and disposed on a distal end of said front portion of said shaft. The barrel body intimately surrounds the front portion of the shaft and the reinforcing member. The grip body intimately surrounds the rear portion of the shaft.

Abstract: A shaft of a billiard cue includes a first section and a second section connected to the first section. The first section is made of natural wood and has a front end to be a top end of the shaft and a rear connecting end to connect to the second section. The second section is not made of natural wood but of a material with a hardness being greater than that of the first section. The second section has a front connecting end to connect with the rear connecting end of the first section and a rear end to be a bottom end of the shaft.

Abstract: A shaft of a billiard cue includes a first section and a second section connected to the first section. The first section is made of natural wood and has a front end to be a top end of the shaft and a rear connecting end to connect to the second section. The second section is not made of natural wood but of a material with a hardness being greater than that of the first section. The second section has a front connecting end to connect with the rear connecting end of the first section and a rear end to be a bottom end of the shaft.

Abstract: A shaft of a cue stick for billiards or pool, includes an elongated tapered body laminated of a plurality of wood strips, each of the wood strips in cross-section having a sector section with an arcuate outer surface and an arc inner notch such that when the wood strips are laminated together, the arcuate outer surfaces form an outer surface of the body and the inner notches define an axial hole through the body; and a circular core tube made of a material having a greater rigidity than wood and having a shorter length than the axial hole, the tube being firmly received in the axial hole in such a way that the cue sticks body has a front hollow section extending a predetermined length along its axis from larger diameter to the smaller diameter end.

Abstract: A billiard cue includes a shaft, a ferrule engaged with the shaft and a tip mounted on the ferrule. The shaft includes a tenon defining an outward annular shoulder. The ferrule includes an opened end, an opposed closed end and an interior bore. The bore has a front portion and a rear portion. The diameter of the front portion is larger than that of the rear portion to define an inward annular shoulder therebetween. The tenon of the shaft is received in the front portion of the bore in such a way that the top surface of the tenon snugly leans against the inward annular shoulder, the end surface of the opened end of the ferrule is snugly seated against the outward annular shoulder of the shaft, and a buffer space is defined by the rear portion of the bore of the ferrule.

Abstract: An improved ferrule of a billiard/pool cue includes a generally cylindrical body with an open end and an opposed closed end. An interior bore is formed in the body and extends inward from the open end of the body for a predetermined distance toward the closed end of the body. An isolated hollow room is formed in the body and located between the inner end of the bore and the closed end of the body. The ferrule is attached to a shaft of a billiard/pool cue by means of a tenon formed on the shaft. Whereby the ferrule can tightly engage with the shaft of the cue and in the same time absorb the impact forces generated during the impact of the cue on a ball.

Abstract: A picture frame assembly includes a main body having a receiving portion for receiving a picture. A cover with a transparent portion is attached to the main body to against and display the picture received in the main body. A first urging means is disposed between the main body and the cover to produce a first urging force to urge against the cover to firmly be attached to the main body, and as the cover is released from the main body to urge against the cover to depart from the main body in a first direction. A second urging means is disposed between the main body and the cover to produce a second urging force to urge against the cover to depart from said main body in a second direction when the cover is released from the main body.

Abstract: An improved ferrule of a billiard/pool cue includes a generally cylindrical body with an open end and an opposed closed end. An interior bore is formed in the body and extends inward from the open end of the body for a predetermined distance toward the closed end of the body. An isolated hollow room is formed in the body and located between the inner end of the bore and the closed end of the body. The ferrule is attached to a shaft of a billiard/pool cue by means of a tenon formed on the shaft. Whereby the ferrule can tightly engage with the shaft of the cue and in the same time absorb the impact forces generated during the impact of the cue on a ball.

Abstract: A slip-on ferrule assembly for billiard cues includes a ferrule having a side wall and an end wall. The side wall has an outer surface and an inner surface. The end wall has an outer surface and an inner surface. The inner surfaces of the side wall and the end wall define a chamber in the ferrule. A tip is mounted on the outer surface of the end wall of the ferrule. A tenon is provided on one end of a conventional cue and inserted into the chamber of the ferrule. Means for tightly securing the ferrule to the tenon is fitted between the ferrule and the tenon.