Claims
- 1. A barbless fishing hook comprising:
a base shank portion, a tapered end portion having a pointed end at a distal end thereof, and a curved shank portion extending between said base shank portion and said tapered end portion, said tapered end portion having an inner side in opposed facing relation to said base shank portion and an opposite outer side, a convexity having a gently inclined tapered leading surface and a contiguous smoothly inclined rear surface, said convexity formed on only said inner side of said tapered end portion, wherein a thin end of said tapered leading surface points to said pointed end and said rear surface is adjacent said curved shank portion, and wherein said rear surface is more steeply inclined relative to said tapered end than said tapered leading surface, and wherein said outer side of said tapered end portion is linear from said curved shank portion to said pointed end in a plane containing said point, said tapered end portion, said convexity and said base shank portion, so that said convexity forms an asymmetry on said tapered end portion relative to a longitudinal axis of said tapered end portion, and wherein said rear surface of said convexity does not form an undercut relative to said tapered end portion.
- 2. The barbless fishing hook of claim 1 wherein said convexity is of the shape of a teardrop on said tapered end portion.
- 3. A barbless fishing hook of claim 1 wherein said tapered end portion has
a longitudinal axis, said pointed end lying on said axis, and extending longitudinally along said tapered end portion, a radially expanded surface over said convexity, said radially expanded surface extending radially outwardly of said longitudinal axis so as to define, in a first plane perpendicular to said longitudinal axis, a smoothly rounded radial arc devoid of stress concentration causing corners or elongate protrusions and so as to define, in a second plane containing said longitudinal axis, along the intersection of said second plane with said radially expanded surface, a line of intersection smoothly blending said radially expanded surface with said tapered end portion adjacent said pointed end at one end of said line of intersection and with said curved shank portion at an opposite end of said line of intersection and said distance between said line of intersection and said longitudinal axis, perpendicular to said longitudinal axis, increasing smoothly, so as to define a first slope, along said tapered end portion from adjacent said pointed end to a maximum radial distance where said smoothly rounded generally radial arc sweeps out a maximum area contained in said first plane, a truncation surface adjacent said maximum area, on an opposite side of said first plane containing said maximum area said truncation surface smoothly rounding off said radially expanded surface so as to smoothly blend with said curved shank portion, without an undercut, said truncation surface having a second slope, said second slope steeper than said first slope.
- 4. The barbless fishing hook of claim 3 wherein said first slope is smoothly and gently inclined so as to form an acute angle with said longitudinal axis adjacent said pointed end, said first slope extending between said pointed end and a domed apex on said convexity wherein said domed apex has a smoothly rounded surface extending between said first slope and said truncation surface, said truncation surface extending along said tapered end portion between said domed apex and said curved shank portion, and wherein said convexity has opposite first and second sides extending smoothly laterally radially outward of said longitudinal axis.
- 5. The barbless fishing hook of claim 4 wherein said domed apex and said first and second sides form a continuously smooth rounded surface.
- 6. The barbless fishing hook of claim 3 wherein said radially expanded surface is a conical surface extending from adjacent said pointed end, along said tapered end portion, said conical surface smoothly expanding increasingly radially outward of said longitudinal axis, said conical surface truncated at said truncation surface.
- 7. The barbless fishing hook of claim 1 wherein said convexity forms at a leading end thereof the shape of a bisected truncated elliptical cone, truncated at its widest end and bisected along its longitudinal axis of symmetry, and forms at a contiguous rear end thereof a bisected hemisphere, bisected along its axis of symmetry, said bisected truncated elliptical cone smoothly contiguous with said bisected hemisphere at an intersection of a widest end of said bisected hemisphere and said widest end of said bisected truncated elliptical cone.
- 8. The barbless fishing hook of claim 1 wherein said convexity forms at a leading end thereof generally the shape of a first bisected truncated elliptical cone, truncated at its widest end and bisected along its longitudinal axis, and forms at a contiguous rear end thereof a second bisected truncated elliptical cone, bisected along its axis of symmetry, said first bisected truncated elliptical cone smoothly contiguous with said second bisected truncated elliptical cone at an intersection of a widest end of said second bisected truncated elliptical cone and said widest end of said first bisected truncated elliptical cone.
- 9. A barbless fishing hook comprising:
a base shank portion, a tapered end portion having a pointed end at a distal end thereof, and a curved shank portion extending between said base shank portion and said tapered end portion, said tapered end portion having an inner side in opposed facing relation to said base shank portion and an opposite outer side, a convexity having a gently inclined tapered leading surface and a contiguous smoothly inclined rear surface, said convexity formed on only said outer side of said tapered end portion, wherein a thin end of said tapered leading surface points to said pointed end and said rear surface is adjacent said curved shank portion, and wherein said rear surface is more steeply inclined relative to said tapered end than said tapered leading surface, and wherein said inner side of said tapered end portion is linear from said curved shank portion to said pointed end in a plane containing said point, said tapered end portion, said convexity and said base shank portion, so that said convexity forms an asymmetry on said tapered end portion relative to a longitudinal axis of said tapered end portion, and wherein said rear surface of said convexity does not form an undercut relative to said tapered end portion.
- 10. The barbless fishing hook of claim 9 wherein said convexity is of the shape of a teardrop on said tapered end portion.
- 11. A barbless fishing hook of claim 9 wherein said tapered end portion has
a longitudinal axis, said pointed end lying on said axis, and extending longitudinally along said tapered end portion, a radially expanded surface over said convexity, said radially expanded surface extending radially outwardly of said longitudinal axis so as to define, in a first plane perpendicular to said longitudinal axis, a smoothly rounded radial arc devoid of stress concentration causing corners or elongate protrusions and so as to define, in a second plane containing said longitudinal axis, along the intersection of said second plane with said radially expanded surface, a line of intersection smoothly blending said radially expanded surface with said tapered end portion adjacent said pointed end at one end of said line of intersection and with said curved shank portion at an opposite end of said line of intersection and said distance between said line of intersection and said longitudinal axis, perpendicular to said longitudinal axis, increasing smoothly, so as to define a first slope, along said tapered end portion from adjacent said pointed end to a maximum radial distance where said smoothly rounded generally radial arc sweeps out a maximum area contained in said first plane, a truncation surface adjacent said maximum area, on an opposite side of said first plane containing said maximum area, said truncation surface smoothly rounding off said radially expanded surface so as to smoothly blend with said curved shank portion, without an undercut, said truncation surface having a second slope, said second slope steeper than said first slope.
- 12. The barbless fishing hook of claim 11 wherein said first slope is smoothly and gently inclined so as to form an acute angle with said longitudinal axis adjacent said pointed end, said first slope extending between said pointed end and a domed apex on said convexity wherein said domed apex has a smoothly rounded surface extending between said first slope and said truncation surface, said truncation surface extending along said tapered end portion between said domed apex and said curved shank portion, and wherein said convexity has opposite first and second sides extending smoothly laterally radially outward of said longitudinal axis.
- 13. The barbless fishing hook of claim 12 wherein said domed apex and said first and second sides form a continuously smooth rounded surface.
- 14. The barbless fishing hook of claim 11 wherein said radially expanded surface is a conical surface extending from adjacent said pointed end, along said tapered end portion, said conical surface smoothly expanding increasingly radially outward of said longitudinal axis, said conical surface truncated at said truncation surface.
- 15. The barbless fishing hook of claim 9 wherein said convexity forms at a leading end thereof the shape of a bisected truncated elliptical cone, truncated at its widest end and bisected along its longitudinal axis of symmetry, and forms at a contiguous rear end thereof a bisected hemisphere, bisected along its axis of symmetry, said bisected truncated elliptical cone smoothly contiguous with said bisected hemisphere at an intersection of a widest end of said bisected hemisphere and said widest end of said bisected truncated elliptical cone.
- 16. The barbless fishing hook of claim 15 wherein said convexity forms at a leading end thereof generally the shape of a first bisected truncated elliptical cone, truncated at its widest end and bisected along its longitudinal axis, and forms at a contiguous rear end thereof generally a second bisected truncated elliptical cone, bisected along its axis of symmetry, said first bisected truncated elliptical cone smoothly contiguous with said second bisected truncated elliptical cone at an intersection of a widest end of said second bisected truncated elliptical cone and said widest end of said first bisected truncated elliptical cone.
- 17. A barbless fishing hook comprising:
a base shank portion, a tapered end portion having a pointed end at a distal end thereof, and a curved shank portion extending between said base shank portion and said tapered end portion, a convexity having a gently inclined tapered leading surface and a contiguous smoothly inclined rear surface, said convexity formed on only one side of said tapered end portion, wherein a thin end of said tapered leading surface points to said pointed end and said rear surface is adjacent said curved shank portion, and wherein said rear surface is more steeply inclined relative to said tapered end than said tapered leading surface, and wherein a side opposite said only one side of said tapered end portion is linear from said curved shank portion to said pointed end in a plane containing said point, said tapered end portion, and said convexity, so that said convexity forms an asymmetry on said tapered end portion relative to a longitudinal axis of said tapered end portion, and wherein said rear surface of said convexity does not form an undercut relative to said tapered end portion.
- 18. The barbless fishing hook of claim 9 wherein said convexity is teardrop shaped on said tapered end portion.
- 19. A fishhook comprising:
an apertured eye; an integral elongated shank having an elongated axis terminating in an integral return bend portion, a spear portion integral with the bend portion having a longitudinal axis generally parallel to the elongated as of said shank, said spear portion being rounded in cross sections; a barb, integral with said spear portion adjacent and generally parallel to said shank and facing the same said barb terminating in a sharpened point; said barb having a pre-barb section having a surface extending upwardly in a direction normal to the longitudinal axis of said spear portion, said surface being integrally formed with said spear portion at a first end and integrally formed with a rounded barb section at a second end, said rounded barb section.
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application is a Continuation of United States Continuation-in-Part patent application Ser. No. 09/594,222 filed Jun. 14, 2000 which is a Continuation-in-Part of United States Continuation-in-Part patent application Ser. No. 09/134,066 filed Aug. 13, 1998 which is a Continuation-in-Part from U.S. patent application Ser. No. 08/702,243 filed Aug. 27, 1996 which claims priority from U.S. Provisional Patent Application No. 60/005,350 filed Oct. 18, 1995.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60005350 |
Oct 1995 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
09594222 |
Jun 2000 |
US |
Child |
10146071 |
May 2002 |
US |
Continuation in Parts (2)
|
Number |
Date |
Country |
Parent |
09134066 |
Aug 1998 |
US |
Child |
09594222 |
Jun 2000 |
US |
Parent |
08702243 |
Aug 1996 |
US |
Child |
09134066 |
Aug 1998 |
US |