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US 6,550,178 B1Granted
Spear assembly
OwnerWilliam H. Rogersinventor
Life of this patent
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OwnerWilliam H. Rogersinventor
Estimating the term…
A spear assembly for fishing underwater and inside undersea structures includes an elongated hollow shaft filled with rigid plastic foam material to inhibit entry of water and to rigidify the shaft and has a rear portion and a forward portion, which may include a metallic rod to add weight and strength to the punch delivered by the spear, and a rear portion rigidly connected to the forward portion, a repleacable sharp spear tip for piercing the fish is located at a proximal end of the forward portion, an elastic band for propelling the shaft when the band is released is carried on a movable mechanical means to enable a diver to quickly adjust the tension power of the band by moving it close to the spear tip while keeping the shooting hand indexed in the same release position near the forward portion of the spear. The proximity of the elastic band and the spear tip enables the diver to maneuver the forward portion inside and around undersea structures to spear the nearby fish. An alternative embodiment of the present invention includes a pair of tension bands carried on respective slidable lock means. The bands are located diametrically opposite from each other on both sides of the shaft to provide equalized forces on the shaft, which assist in forcing the spear to be propelled in the appropriate longitudinal axis of the shaft.
A spear assembly for underwater fishing comprising an elongated shaft having a longitudinal axis and including a forward portion having proximal and distal ends and a rear portion and having a spear tip coupled to said proximal end of said forward portion, tension means for forwardly propelling said spear against urging of said tension means to cause said tip to pierce a fish, and a selectively movable and lockable mechanical means slidably disposed on said rear portion of said shaft for carrying said tension means to different locations on said shaft, said tension means being continuously affixed to said mechanical means.
A spear assembly for underwater fishing comprising a longitudinal shaft having forward and rear portions, said forward portion having proximal and distal ends and having a spear tip coupled to said proximal end of said forward portion, a pair of elastic bands for propelling said spear against urging of said bands, a pair of selectively movable lock means mounted on said rear portion, said pair of bands being coupled to respective said pair of lock means, said pair of lock means automatically locking prevent forward movement of said pair of lock means when said pair of bands are stretched forwardly toward said spear tip, and said pair of lock means being diametrically oppositely positioned on sides of said shaft for providing equalized forces on said shaft to assist in directing said shaft along a longitudinal axis of said shaft.
A spear assembly for underwater fishing comprising an elongated hollow shaft having a forward portion including proximal and distal ends and rear portion and including a replaceable sharp spear tip at a proximal end of said forward end portion for piercing and catching fish, a tension means located on said rear portion for propelling said shaft, and selectively movable and lockable mechanical means slidably mounted on said shaft for carrying said tension means and preventing forward movement thereof after being locked, said forward portion being tapered and enlarging in circumference generally medially from said distal end toward said proximal end near said spear tip, said forward portion being textured to create turbulence to increase velocity of said shaft underwater and to assist in gripping said forward portion, said forward portion includes a metal member extending from within said shaft forwardly and terminating in proximity with said spear tip to provide strength and weight to said forward portion, said shaft being substantially filled with foamed polymeric material to prevent water from entering same and to rigidify said shaft, said shaft includes carbon fiber sheets rolled about said metal member and glued internally of said shaft.
Dependencies are inferred from the claim text.