US3815916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fletching unit for arrow
Assignee: Individual
•
Filing: 1970-04-13
•
Granted: 1974-06-11
•
Expires: 1990-04-13
Abstract
Abstract A unitary fletching unit for an arrow utilizing chordally directed vanes integrated with a tubular body which resiliently embraces the shaft of the arrow and on which the vanes describe a helical pattern. The fletching unit is preferably formed of an elastomeric synthetic resin of very thin section or wall thickness so as to provide a fletching unit having a weight not greater than twice the weight of a comparably sized feather fletching.
Inventors
- 👤 R Meszaros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:34
CPC Classifications
F; F42; F42B; F42B6/00; F42B6/02; F42B6/04; F42B6/06; Y; Y10; Y10S; Y10S273/00; Y10S273/04; Y10S273/08
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
96 words
In a fletching unit for an arrow, the combination of an elastic tubular body portion of substantially circular crosssection for mounting on an arrow shaft, a plurality of selfsustaining flexible vanes upstanding from said body portion in circumferentially-spaced relationship and integrated therewith, each of said vanes being disposed in a non-radial substantially chordally directed relationship to said circular body portion, and each of said vanes extending substantially longitudinally of said body portion and defining a uniform helical pattern at its juncture with said body portion whereby to oppose flight-induced change in the pitch of said vanes.
Claim 2
Dependent Claim
96 words
In a fletching unit for an arrow, the combination of an elastic tubular body portion of substantially circular crosssection for mounting on an arrow shaft, a plurality of selfsustaining flexible vanes upstanding from said body portion in circumferentially-spaced relationship and integrated therewith, each of said vanes being disposed in a non-radial substantially chordally directed relationship to said circular body portion, and each of said vanes extending substantially longitudinally of said body portion and defining a uniform helical pattern at its juncture with said body portion whereby to oppose flight-induced change in the pitch of said vanes.
Claim 3
Dependent Claim
31 words
A combination as defined in claim 1, wherein said tubular body portion is of slightly smaller diameter than the shaft diameter of the arrow on which it is to be mounted.
Claim 4
Dependent Claim
18 words
A combination as defined in claim 1, wherein said vanes define a helical pitch of at least 20*.
Claim 5
Dependent Claim
23 words
A combination as defined in claim 1, wherein said body portion is provided with a plurality of weight-reducing openings in the wall thereof.
Claim 6
Dependent Claim
18 words
A combination as defined in claim 1, wherein said fletching unit is formed of an elastomeric synthetic resin.
Claim 7
Dependent Claim
18 words
A combination as defined in claim 5, wherein said vanes have a thickness of less than 0.010 inches.
Claim 8
Dependent Claim
28 words
A cOmbination as defined in claim 5, wherein said fletching unit has a weight of not more than 20 grains and a length of at least 5 inches.
Claim 9
Dependent Claim
114 words
In an arrow, the combination of a shaft, an arrowhead mounted on the forward end of said shaft, a fletching unit resiliently secured adjacent the rearward end of said shaft, said fletching unit being formed of an elastomeric synthetic resin and comprising a tubular body portion of substantially circular cross-section and of smaller diameter than said shaft and a plurality of circumferentially spaced upstanding self-sustaining flexible vanes integrated with said body portion, each of said vanes being disposed in a non-radial substantially chordally directed relationship to said circular body portion and defining a uniform helical pattern at its juncture with said body portion, whereby to oppose flight-induced change in the pitch of said vanes.
Claim 10
Dependent Claim
114 words
In an arrow, the combination of a shaft, an arrowhead mounted on the forward end of said shaft, a fletching unit resiliently secured adjacent the rearward end of said shaft, said fletching unit being formed of an elastomeric synthetic resin and comprising a tubular body portion of substantially circular cross-section and of smaller diameter than said shaft and a plurality of circumferentially spaced upstanding self-sustaining flexible vanes integrated with said body portion, each of said vanes being disposed in a non-radial substantially chordally directed relationship to said circular body portion and defining a uniform helical pattern at its juncture with said body portion, whereby to oppose flight-induced change in the pitch of said vanes.
Claim 11
Dependent Claim
18 words
A combination as defined in claim 8, wherein said vanes define a helical pitch of at least 20*.
References Cited (Backward Citations)
US2887319A
Cited
US2782036A
Cited
US2830818A
Cited
FR1148138A
Cited
US3428321A
Cited
US3539187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |