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US3733933A Expired / Lapsed US ⏱️ 0.0 years remaining

Sharpener for arrowheads

Assignee: Individual
•
Filing: 1971-01-08
•
Granted: 1973-05-22
•
Expires: 1991-01-08
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Abstract

Abstract An arrow broadhead sharpener to be held in one hand of an operative and comprising clamp members between which one blade of an arrowhead, another blade of which is to be sharpened or resharpened, is secured and a tool guide member extending transversely of the clamp members having apertures therein in which one end of a sharpening instrument or tool, such as, a file, stone, etc., is received while the other end is held by the other hand of the operator and moved over the cutting edge of the blade to be sharpened or resharpened.

Inventors

  • 👤 H Longbrake

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 12:39
CPC Classifications
B; B23; B23D; B23D67/00; B23D67/12

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 187 words
In a sharpener for arrow broadheads having at least two blades, an arrow broadhead holder adapted to be held in one hand by an operative for supporting an arrow broadhead by engagement with a blade other than the blade to be sharpened and comprising a first clamp member having a first surface for engaging one side of an arrow broadhead blade, a second clamp member having a second surface opposed to said first surface of said first clamp member for engaging the other side of the blade, means for moving said clamp members toward one another for releasably clamping a blade of an arrow broadhead therebetween, and a plate-like guide means carried by said first clamp member and extending at right angles with respect to said first surface and provided with at least one tool receiving aperture therethrough on each opposite side of and symmetrically located with respect to a plane parallel to the plane of said first surface but spaced slightly therefrom towards said second clamp member so as to be substantially symmetrically located relative to a blade clamped between said first and second clamp members.
Claim 2
Dependent Claim 187 words
In a sharpener for arrow broadheads having at least two blades, an arrow broadhead holder adapted to be held in one hand by an operative for supporting an arrow broadhead by engagement with a blade other than the blade to be sharpened and comprising a first clamp member having a first surface for engaging one side of an arrow broadhead blade, a second clamp member having a second surface opposed to said first surface of said first clamp member for engaging the other side of the blade, means for moving said clamp members toward one another for releasably clamping a blade of an arrow broadhead therebetween, and a plate-like guide means carried by said first clamp member and extending at right angles with respect to said first surface and provided with at least one tool receiving aperture therethrough on each opposite side of and symmetrically located with respect to a plane parallel to the plane of said first surface but spaced slightly therefrom towards said second clamp member so as to be substantially symmetrically located relative to a blade clamped between said first and second clamp members.
Claim 3
Dependent Claim 193 words
In a sharpener for steel broadhead arrowheads having at least two blades, an arrow broadhead holder for supporting an arrow broadhead by engagement with a blade other than the blade to be sharpened and comprising a first clamp member adapted to be held in one hand by an operative and having a first surface for engaging one side of an arrow broadhead blade, a plate-like guide means connected to said first clamp member and extending at right angles with respect to said first surface, a second clamp member having a second surface opposed to said first surface of said first clamp member for engaging the other side of the blade, and means for moving said clamp members toward one another for releasably clamping a blade of an arrow broadhead therebetween, said guide means having a shaft engaging means formed thereon substantially aligned with said surfaces for receiving the shaft of a broadhead arrow at least one blade of the broadhead of which is to be sharpened and at least one tool receiving aperture through said guide means on each opposite side of and located substantially symmetrical with reference to said shaft engaging means.
Claim 4
Dependent Claim 193 words
In a sharpener for steel broadhead arrowheads having at least two blades, an arrow broadhead holder for supporting an arrow broadhead by engagement with a blade other than the blade to be sharpened and comprising a first clamp member adapted to be held in one hand by an operative and having a first surface for engaging one side of an arrow broadhead blade, a plate-like guide means connected to said first clamp member and extending at right angles with respect to said first surface, a second clamp member having a second surface opposed to said first surface of said first clamp member for engaging the other side of the blade, and means for moving said clamp members toward one another for releasably clamping a blade of an arrow broadhead therebetween, said guide means having a shaft engaging means formed thereon substantially aligned with said surfaces for receiving the shaft of a broadhead arrow at least one blade of the broadhead of which is to be sharpened and at least one tool receiving aperture through said guide means on each opposite side of and located substantially symmetrical with reference to said shaft engaging means.
Claim 5
Dependent Claim 223 words
In a sharpener for broadhead arrowheads having at least two blades, an arrow holder adapted to be held in one hand by an operative for supporting an arrow broadhead by engagement with a blade other than the blade to be sharpened and comprising a first clamp member having a first surface for engaging one side of an arrow broadhead blade, a guide member connected to said first clamp member and extending at right angles with respect to said first surface, a second clamp membEr having a second surface opposed to said first surface of said first clamp member for engaging the other side of the blade and means for moving said clamp members toward one another for releasably clamping a blade of an arrow broadhead therebetween, said guide member having shaft engaging means formed thereon substantially aligned with said surfaces for receiving the shaft of a broadhead arrow at least one blade of the broadhead of which is to be sharpened and a plurality of pairs of tool receiving apertures through said guide member, the apertures of each pair being on opposite sides of and located substantially symmetrical with reference to a plane parallel with said first surface but offset towards said second surface so as to be substantially symmetrically located relative to a blade clamped between said first and second clamp members.
Claim 6
Dependent Claim 223 words
In a sharpener for broadhead arrowheads having at least two blades, an arrow holder adapted to be held in one hand by an operative for supporting an arrow broadhead by engagement with a blade other than the blade to be sharpened and comprising a first clamp member having a first surface for engaging one side of an arrow broadhead blade, a guide member connected to said first clamp member and extending at right angles with respect to said first surface, a second clamp membEr having a second surface opposed to said first surface of said first clamp member for engaging the other side of the blade and means for moving said clamp members toward one another for releasably clamping a blade of an arrow broadhead therebetween, said guide member having shaft engaging means formed thereon substantially aligned with said surfaces for receiving the shaft of a broadhead arrow at least one blade of the broadhead of which is to be sharpened and a plurality of pairs of tool receiving apertures through said guide member, the apertures of each pair being on opposite sides of and located substantially symmetrical with reference to a plane parallel with said first surface but offset towards said second surface so as to be substantially symmetrically located relative to a blade clamped between said first and second clamp members.
Claim 7
Dependent Claim 207 words
In a sharpener for arrow broadheads having at least two blades, an arrow holder assembly adapted to be held in one hand by an operative for supporting an arrow broadhead by engagement with a blade other than the blade to be sharpened and comprising a first clamp member having a surface for engaging one said of a blade of an arrow broadhead, guide means extending at right angles with respect to said surface and provided with at least one tool receiving aperture therethrough on each opposite side of and located substantially symmetrical with respect to the plane of said first surface, a second clamp member having a second surface opposed to said first surface of said first clamp member for engaging the other side of the blade, and means for moving said clamp members toward one another for releasably clamping a blade of an arrow broadhead therebetween, and an arrow broadhead blade sharpening tool, having one end adapted for selective extension through said apertures in said arrow holder assembly with the other end held by the other hand of the operative and reciprocation in contact with selective sides of the cutting edge of a blade to be sharpened of the arrow broadhead clamped in said holder assembly.
Claim 8
Dependent Claim 207 words
In a sharpener for arrow broadheads having at least two blades, an arrow holder assembly adapted to be held in one hand by an operative for supporting an arrow broadhead by engagement with a blade other than the blade to be sharpened and comprising a first clamp member having a surface for engaging one said of a blade of an arrow broadhead, guide means extending at right angles with respect to said surface and provided with at least one tool receiving aperture therethrough on each opposite side of and located substantially symmetrical with respect to the plane of said first surface, a second clamp member having a second surface opposed to said first surface of said first clamp member for engaging the other side of the blade, and means for moving said clamp members toward one another for releasably clamping a blade of an arrow broadhead therebetween, and an arrow broadhead blade sharpening tool, having one end adapted for selective extension through said apertures in said arrow holder assembly with the other end held by the other hand of the operative and reciprocation in contact with selective sides of the cutting edge of a blade to be sharpened of the arrow broadhead clamped in said holder assembly.
Claim 9
Dependent Claim 145 words
A sharpening device adapted to be held in one hand by an operative for sharpening arrow broadheads having at least two blades arranged symmetrically about the axis of an arrow shaft, comprising clamping means including a pair of clamping members with opposed surfaces movable toward and away from each other for releasably clamping an arrow broadhead by a blade other than the blade which is to be sharpened, means for moving said clamping members toward one another to releasably clamp an arrow broadhead blade therebetween, guide means carried by one of said clamping members and exteing at right angles with respect to said surfaces, and tool engaging means formed on said guide means on opposite sides of said surfaces for supporting a tool at either of two positions spaced symmetrically on opposite sides of a blade of an arrow broadhead clamped between said clamping members.
Claim 10
Dependent Claim 145 words
A sharpening device adapted to be held in one hand by an operative for sharpening arrow broadheads having at least two blades arranged symmetrically about the axis of an arrow shaft, comprising clamping means including a pair of clamping members with opposed surfaces movable toward and away from each other for releasably clamping an arrow broadhead by a blade other than the blade which is to be sharpened, means for moving said clamping members toward one another to releasably clamp an arrow broadhead blade therebetween, guide means carried by one of said clamping members and exteing at right angles with respect to said surfaces, and tool engaging means formed on said guide means on opposite sides of said surfaces for supporting a tool at either of two positions spaced symmetrically on opposite sides of a blade of an arrow broadhead clamped between said clamping members.
Claim 11
Dependent Claim 193 words
A sharpening device adapted to be held in one hand by an operative for sharpening arrow broadheads having at least two blades arranged symmetrically about the axis of an arrow shaft, comprising clamping means including a pair of clamping members with opposed surfaces movable toward and away from each other for releasably clamping an arrow broadhead by a blade other than the blade which is to be sharpened, means for moving said clamping members toward one another to releasably clamp an arrow broadhead blade therebetween, guide means carried by one of said clamping members and extending at right angles with respect to said surfaces, tool engaging means formed on said guide means on opposite sides of said surfaces for supporting a tool at either of two positions spaced symmetrically on opposite sides of a blade clamped between said clamping members, and shaft engaging means formed on said guide means for engaging and supporting the shaft of an arrow one blade of the broadhead of which is clamped between said clamping members so as to position a blade to be sharpened aT a desired attitude relative to said clamping means and said guide means.
Claim 12
Dependent Claim 193 words
A sharpening device adapted to be held in one hand by an operative for sharpening arrow broadheads having at least two blades arranged symmetrically about the axis of an arrow shaft, comprising clamping means including a pair of clamping members with opposed surfaces movable toward and away from each other for releasably clamping an arrow broadhead by a blade other than the blade which is to be sharpened, means for moving said clamping members toward one another to releasably clamp an arrow broadhead blade therebetween, guide means carried by one of said clamping members and extending at right angles with respect to said surfaces, tool engaging means formed on said guide means on opposite sides of said surfaces for supporting a tool at either of two positions spaced symmetrically on opposite sides of a blade clamped between said clamping members, and shaft engaging means formed on said guide means for engaging and supporting the shaft of an arrow one blade of the broadhead of which is clamped between said clamping members so as to position a blade to be sharpened aT a desired attitude relative to said clamping means and said guide means.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-05-21 1976-11-20 1977-05-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-05-21 1980-11-20 1981-05-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-05-21 1984-11-20 1985-05-22 $7700.00 Window Closed / Lapsed

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