Spearpoint assembly

Claim 2

In a spearpoint of the type tethered to a spearshaft by a cable and having a pointed distal end and a proximate end that releasably engages with an adaptor connected to the distal end of a spearshaft, the improvement which comprises a selective cable connector means to allow the spearpoint distal end to be rotated about an aperture of the spearpoint through which the cable is connected to said spearpoint, and means to maintain the rotated spearpoint adjacent to said cable, whereby retrieval of the spearpoint through a wound in a speared prey is facilitated.

Claim 3

In a spearpoint according to claim 1, wherein the improvement further comprises a spearpoint with a substantially circular midpoint cross-section that tapes to a point at its distal end and said cable connector means which comprises a first loop in said cable which engages through said which is transverse and aperture located proximate to said spearpoint midpoint and a second loop which constrains movement of a substantially circular connector element along said cable, said connector element having an internal diameter which is larger than the diameter of the spearpoint at its distal end and smaller than the diameter of the spearpoint at its midpoint.

Claim 4

In a spearpoint according to claim 2, wherein the improvement further comprises a spearpoint proximate end characterized by a single barb with a first surface facing in a first transverse direction thereby to define a concave extension to the spearpoint outer surface and the obverse barb surface facing in a second transverse diection thereby to define a convex extension of the spearpoint outer surface wherein, further, said transverse aperture substantially is perpendicular to the first and second transverse directions and with the cable connector means being adjacent to the spearpoint surface.

Claim 5

In a spearpoint according to claim 1, wherein the improvement further comprises a spearpoint having a substantially circular midpoint cross-section which becomes, at its proximate end, a single bath having a concave surface facing in a first transverse direction and a convex surface facing in a second transverse direction, obverse to the first and said proximate end further comprising an opening to a longitudinally extending internal bore that is non-tapered, and adapted to accept, without binding, a non-tapered distal end portion of an adaptor which in turn has a proximate end adapted to be mounted upon the distal end of a spearshaft.

Claim 6

An improved spearpoint assembly comprising, in combination: (i) a spearpoint with an elongated longitudinal dimension that extends between a pointed distal end and a proximate end that further comprises a single barb extending in a first transverse dimension and an internal bore; and (ii) a spearshaft adaptor with a distal end adapted releasably to engage within the spearpoint internal bore; and (iii) a tethering means adapted to connect the spearpoint to a spearshaft which comprises a flexible cable with a proximate end adapted for attachment to a spearshaft and a distal end further comprising means to connect the cable at an intermediate longitudinal location on the spearpoint; and (iv) means selectively to connect the spearpoint distal end with a portion of the cable spaced from the cable distal end.

Claim 7

An improved spearpoint assembly comprising, in combination: (i) a spearpoint with an elongated longitudinal dimension that extends between a pointed distal end and a proximate end that further comprises a single barb extending in a first transverse dimension and an internal bore; and (ii) a spearshaft adaptor with a distal end adapted releasably to engage within the spearpoint internal bore; and (iii) a tethering means adapted to connect the spearpoint to a spearshaft which comprises a flexible cable with a proximate end adapted for attachment to a spearshaft and a distal end further comprising means to connect the cable at an intermediate longitudinal location on the spearpoint; and (iv) means selectively to connect the spearpoint distal end with a portion of the cable spaced from the cable distal end.

Claim 8

The combination of claim 5 wherein the spearpoint is substantially circular in cross-section and tapers from said intermediate location to a point at its distal end, wherein said means selectively to connect the spearpoint distal end with the cable comprises a substantially circular element that is constrained for motion along a portion of the cable and is adapted to be engaged over said spearpoint and tightly against the tapered surface extending therefrom.

Claim 9

The combination of claim 6 wherein said spearshaft adaptor distal end comprises an elongated, right cylindrical surface with a diameter smaller and a length larger than the corresponding diameter and length of a longitudinally extending bore opening into the spearpoint from the proximate end thereof.

Claim 10

An improved spearpoint and adaptor assembly characterized by a longitudinally extending spearpoint with a pointed distal end, a proximate end further comprising a single barb extending in a first transverse direction and a non-tapered longitudinal bore adapted releasably to accept a non-tapered, longitudinally-extending distal end of an adaptor which further comprises a proximate end that in turn is adapted to be mounted upon the distal end of a spearshaft, wherein the improvement comprises a transverse aperture in the spearpoint that is located proximate to the center of gravity of said spearpoint and which extends substantially perpendicular to the transverse direction of said single barb, wherein further the first end of a flexible cable is defined with a first loop through said aperture and an adjacent second loop, wherein a connector element is adapted for a limited travel along said cable by said second loop and is sized to enable the spearpoint distal end to be held adjacent to a portion of said cable proximate the second loop for purposes of retrieval of the spearpoint, back though the wound in a speared prey.

Claim 11

An improved spearpoint and adaptor assembly characterized by a longitudinally extending spearpoint with a pointed distal end, a proximate end further comprising a single barb extending in a first transverse direction and a non-tapered longitudinal bore adapted releasably to accept a non-tapered, longitudinally-extending distal end of an adaptor which further comprises a proximate end that in turn is adapted to be mounted upon the distal end of a spearshaft, wherein the improvement comprises a transverse aperture in the spearpoint that is located proximate to the center of gravity of said spearpoint and which extends substantially perpendicular to the transverse direction of said single barb, wherein further the first end of a flexible cable is defined with a first loop through said aperture and an adjacent second loop, wherein a connector element is adapted for a limited travel along said cable by said second loop and is sized to enable the spearpoint distal end to be held adjacent to a portion of said cable proximate the second loop for purposes of retrieval of the spearpoint, back though the wound in a speared prey.