US3850156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite archery bow
Assignee: Individual
•
Filing: 1973-06-01
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Granted: 1974-11-26
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Expires: 1993-06-01
Abstract
Abstract A composite archery bow utilizing a plurality of laminations with fibers oriented to give them a substantial transverse angulation with respect to the long axis of the bow limbs. The fibers in the laminations are oriented in opposite directions on the facing and backing of the limb to prevent any distortion of the finished limb. The recurve portions of the bow are relatively long and straight, and are connected to the major limb portion by a small bend radius portion of approximately two to three inches in radius.
Inventors
- 👤 F Eicholtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:20
CPC Classifications
F; F41; F41B; F41B5/00; F41B5/0005; F41B5/001; F41B5/0015; F41B5/0021; Y; Y10; Y10S; Y10S273/00; Y10S273/07; Y10S273/23
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
A composite archery bow comprising: a wood core having an upper limb and a lower limb, a plurality of fiber reinforced layers on the back and face of said wood core, at least a first one of said fiber reinforced layers on each of said back and said face of said wood core having a fiber axial orientation at a substantial angle to a plane including the longitudinal axis of said core and perpendicular to said layers, but said axial orientation being less than 90* to said plane. the fibers in the corresponding layers in the corresponding sides of said upper and lower limbs of said wood core being oppositely oriented, at least a second one of said fiber reinforced layers on each of said back and said face of said core having a fiber axial orientation substantially equal but oppositely directed from the angular orientation of said first layers.
Claim 2
Dependent Claim
150 words
A composite archery bow comprising: a wood core having an upper limb and a lower limb, a plurality of fiber reinforced layers on the back and face of said wood core, at least a first one of said fiber reinforced layers on each of said back and said face of said wood core having a fiber axial orientation at a substantial angle to a plane including the longitudinal axis of said core and perpendicular to said layers, but said axial orientation being less than 90* to said plane. the fibers in the corresponding layers in the corresponding sides of said upper and lower limbs of said wood core being oppositely oriented, at least a second one of said fiber reinforced layers on each of said back and said face of said core having a fiber axial orientation substantially equal but oppositely directed from the angular orientation of said first layers.
Claim 3
Dependent Claim
35 words
An archery bow according to claim 1 further including: a recurve portion on each of said limbs having a curved interconnection portion with a radius of less than 3 inches and a substantially straight portion.
Claim 4
Dependent Claim
17 words
An archery bow according to claim 1 wherein: said fiber orientation is substantially 30* from said plane.
Claim 5
Dependent Claim
19 words
An archery bow according to claim 1 wherein: said fiber reinforced layers on said face only comprising graphite fibers.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |