US3887186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broadhead
Assignee: Brunswick Corp
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Filing: 1974-02-19
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Granted: 1975-06-03
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Expires: 1994-02-19
Abstract
Abstract An arrowhead comprises a conical ferrule having a rounded tip with a slot therein. A primary blade is securely brazed on the outside of the ferrule. The primary blade extends forward well beyond the rounded tip and has an opening in that portion of the blade which projects beyond the rounded tip. A replaceable auxiliary blade fits into the ferrule slot and includes a pair of fastening arms which snap into a pair of holes on the ferrule. The auxiliary blade is positioned perpendicular to the primary blade with its pointed tip located within the primary blade opening.
Inventors
- 👤 Jr Oscar N Matlock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:56
CPC Classifications
F; F42; F42B; F42B6/00; F42B6/02; F42B6/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
162 words
An arrowhead comprising: a ferrule having a conical body with a tip on the forward end of the ferrule, a planar slot in the ferrule extending rearward from the tip of the ferrule into the conical body; a flat primary blade securely fixed to the outside of the conical body, the primary blade lying in a plane substantially perpendicular to that of the planar slot and extending forward well beyong the ferrule tip, the primary blade having an opening in the portion of the primary blade which projects beyong the ferrule tip; a flat auxiliary blade having a forward portion thereof positioned within the planar slot and rearwardly directed tips, the forward portion extending forward beyond the ferrule tip and terminating in a point located within the primary blade opening; and means on the ferrule located on the opposite sides of the conical body substantially in the same plane as the slot for receiving the rearwardly directed tips of the auxiliary blade.
Claim 2
Dependent Claim
162 words
An arrowhead comprising: a ferrule having a conical body with a tip on the forward end of the ferrule, a planar slot in the ferrule extending rearward from the tip of the ferrule into the conical body; a flat primary blade securely fixed to the outside of the conical body, the primary blade lying in a plane substantially perpendicular to that of the planar slot and extending forward well beyong the ferrule tip, the primary blade having an opening in the portion of the primary blade which projects beyong the ferrule tip; a flat auxiliary blade having a forward portion thereof positioned within the planar slot and rearwardly directed tips, the forward portion extending forward beyond the ferrule tip and terminating in a point located within the primary blade opening; and means on the ferrule located on the opposite sides of the conical body substantially in the same plane as the slot for receiving the rearwardly directed tips of the auxiliary blade.
Claim 3
Dependent Claim
16 words
An arrowhead as recited in claim 1 wherein the means located on the ferrule are holes.
Claim 4
Dependent Claim
30 words
An arrowhead as set forth in claim 2 wherein said flat auxiliary blade further comprises a pair of fastening members, one of which is positioned within each of said holes.
Claim 5
Dependent Claim
29 words
An arrowhead as set forth in claim 2 wherein each of said pair of holes is circular, the centers of said circular holes being coplanar with said planar slot.
Claim 6
Dependent Claim
13 words
An arrowhead as recited in claim 2 wherein the holes are circular holes.
Claim 7
Dependent Claim
22 words
An arrowhead as recited in claim 2 wherein the conical body has a bore for receiving one end of an arrow shaft.
Claim 8
Dependent Claim
21 words
An arrowhead as set forth in claim 1 wherein said flat auxiliary blade is substantially thinner than said flat primary blade.
Claim 9
Dependent Claim
21 words
An arrowhead as set forth in claim 1 wherein said primary blade is brazed on the outside of said conical body.
Claim 10
Dependent Claim
178 words
An arrowhead comprising: a ferrule having a conical body with a rounded tip on the forward end of said ferrule, a planar slot in said ferrule extending rearward from the forward end of said ferrule into said conical body, and a pair of circular holes located on opposite sides of said conical body, the center of said circular holes being coplanar with said planar slot; a flat primary blade securely brazed on the outside of said conical body, said main blade lying in a plane substantially perpendicular to that of said planar slot, and extending forward well beyond said rounded tip, said primary blade having an opening in the portion of said main blade which projects beyond said rounded tip; and a flat auxiliary blade having a forward portion thereof positioned within said planar slot, said forward portion extending forward beyond said rounded tip and terminating in a pointed tip located within said primary blade opening, said auxiliary blade having a pair of fastening members, one of which is adapted to fit in each of said circular holes.
Claim 11
Dependent Claim
178 words
An arrowhead comprising: a ferrule having a conical body with a rounded tip on the forward end of said ferrule, a planar slot in said ferrule extending rearward from the forward end of said ferrule into said conical body, and a pair of circular holes located on opposite sides of said conical body, the center of said circular holes being coplanar with said planar slot; a flat primary blade securely brazed on the outside of said conical body, said main blade lying in a plane substantially perpendicular to that of said planar slot, and extending forward well beyond said rounded tip, said primary blade having an opening in the portion of said main blade which projects beyond said rounded tip; and a flat auxiliary blade having a forward portion thereof positioned within said planar slot, said forward portion extending forward beyond said rounded tip and terminating in a pointed tip located within said primary blade opening, said auxiliary blade having a pair of fastening members, one of which is adapted to fit in each of said circular holes.
Claim 12
Dependent Claim
178 words
An arrowhead comprising: a ferrule having a conical body with a rounded tip on the forward end of said ferrule, a planar slot in said ferrule extending rearward from the forward end of said ferrule into said conical body, and a pair of circular holes located on opposite sides of said conical body, the center of said circular holes being coplanar with said planar slot; a flat primary blade securely brazed on the outside of said conical body, said main blade lying in a plane substantially perpendicular to that of said planar slot, and extending forward well beyond said rounded tip, said primary blade having an opening in the portion of said main blade which projects beyond said rounded tip; and a flat auxiliary blade having a forward portion thereof positioned within said planar slot, said forward portion extending forward beyond said rounded tip and terminating in a pointed tip located within said primary blade opening, said auxiliary blade having a pair of fastening members, one of which is adapted to fit in each of said circular holes.
Claim 13
Dependent Claim
178 words
An arrowhead comprising: a ferrule having a conical body with a rounded tip on the forward end of said ferrule, a planar slot in said ferrule extending rearward from the forward end of said ferrule into said conical body, and a pair of circular holes located on opposite sides of said conical body, the center of said circular holes being coplanar with said planar slot; a flat primary blade securely brazed on the outside of said conical body, said main blade lying in a plane substantially perpendicular to that of said planar slot, and extending forward well beyond said rounded tip, said primary blade having an opening in the portion of said main blade which projects beyond said rounded tip; and a flat auxiliary blade having a forward portion thereof positioned within said planar slot, said forward portion extending forward beyond said rounded tip and terminating in a pointed tip located within said primary blade opening, said auxiliary blade having a pair of fastening members, one of which is adapted to fit in each of said circular holes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |