US3744473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite archery bow with bow limb tension control device
Assignee: Individual
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Filing: 1971-10-26
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Granted: 1973-07-10
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Expires: 1991-10-26
Abstract
Abstract An archery bow is composed of a rigid middle portion having a pair of rotatable members supported at equal distances from the center thereof, a pair of bow arms connected to the rotatable members respectively and extending from the ends of the rigid middle portion, with the bowstring extending between the outer end of the arms, means interconnecting the rotatable members causing them to rotate in unison and in opposite directions for equalizing the movement of the bow arms, and resilient tension means controlling the rotation of the rotatable members and the movement of the arms.
Inventors
- 👤 J Nishioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:56
CPC Classifications
F; F41; F41B; F41B5/00; F41B5/0094
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
157 words
A composite archery bow assembly comprising a rigid middle portion, a pair of rotatable members supported on each end of said middle portion respectively, a pair of bow arms fixedly connected to said rotatable members, respectively, and extending from said end sections of said middle portion, a channel extending longitudinally the length of said middle portion, means passing along through said channel and interconnecting said rotatable members for causing said rotatable members to rotate in unison and in opposite directions, whereby to equalize the movements of said rotatable members and therewith of said arms, a bowstring extending between the outer free ends of said arms, tension means connecting said bow arms and said end sections of said middle portion for applying tension to resist the movement of said bow arms inwardly-rearwardly towards each other and said tensioning means further including springs fixedly connected to the respective opposite ends of the middle portion and engaging the bow arms.
Claim 2
Dependent Claim
157 words
A composite archery bow assembly comprising a rigid middle portion, a pair of rotatable members supported on each end of said middle portion respectively, a pair of bow arms fixedly connected to said rotatable members, respectively, and extending from said end sections of said middle portion, a channel extending longitudinally the length of said middle portion, means passing along through said channel and interconnecting said rotatable members for causing said rotatable members to rotate in unison and in opposite directions, whereby to equalize the movements of said rotatable members and therewith of said arms, a bowstring extending between the outer free ends of said arms, tension means connecting said bow arms and said end sections of said middle portion for applying tension to resist the movement of said bow arms inwardly-rearwardly towards each other and said tensioning means further including springs fixedly connected to the respective opposite ends of the middle portion and engaging the bow arms.
Claim 3
Dependent Claim
78 words
The archery bow assembly of claim 1 comprising connected rotatable members each connected to one of said tension springs, said tension springs having their inner ends secured to the forward side of said rigid middle portion and extending obliquely forwardly in opposite directions from said middle portion, in the same plane with said middle portion and in opposite direction from said bow arms, and means connecting the outer free ends of said springs with said bow arms respectively.
Claim 4
Dependent Claim
28 words
The archery bow assembly of claim 2; with said means connecting the outer free ends of said springs with said bow arms being adjustably secured to said arms.
Claim 5
Dependent Claim
125 words
The archery bow assembly of claim 1 with the addition of toggle linkage connecting each of said bow arms with said rigid middle portion located on the rear side of the assembly, said tension assemblies comprising a tension spring for each bow arm, said tension springs having their inner ends secured to the forward side of said rigid middle portion and extending obliquely forwardly in oppo-site directions from said middle portion in the same plane with said middle portion and said bow arms and in opposite directions from said bow arms, joining means connecting the outer free ends of said springs with said toggle linkage respectively and each of said bow arms being provided with a slot enabling said joining means to pass freely therethrough.
Claim 6
Dependent Claim
114 words
The archery bow assembly of claim 1 with a radially-extending bracket on each of said rotatable members extending out beyond the end of saId rigid middle portion, said bow arms secured to said brackets respectively, and with said tension assemblies each tension spring is connected to a rotatable member and bow arm, said tension springs having their inner ends secured to the forward side of said rigid middle portion and extending obliquely forwardly in opposite directions from said middle portion in the same plane with said middle portion and said bow arms and in opposite direction from said bow arms, and means adjustably connecting the outer free ends of said springs with said brackets.
Claim 7
Dependent Claim
70 words
The archery bow assembly of claim 1 with tension spring connected to each bow arm, said tension springs having their inner ends secured to the rear face of said rigid portion and extending obliquely rearward in opposite directions from said middle portion in the same plane with said middle portion and said bow arms, and linkage connecting the outer free ends of said tension springs with said bow arms respectively.
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) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |