US3683883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizer for archery bow
Assignee: Nippon Gakki Co Ltd
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Filing: 1971-02-23
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Granted: 1972-08-15
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Expires: 1991-02-23
Abstract
Abstract A stabilizer for an archery bow comprising a rod member and a weight body integrally connected to the free end of the rod member the other end of which is fixed to an archery bow, is further improved in such a manner that the weight body is formed into a non-magnetic outer casing housing a plurality of weight members made of a permanent magnet material so that the weight members can be freely moved inside of the outer casing against magnetic forces caused by the permanent magnet weight members, whereby energy of any vibration or shock, attraction or repression, caused in the archery bow and transmitted to the weight members is consumed within the weight body and the intensity of the vibration or shock is rapidly minimized.
Inventors
- 👤 Tadao Izuta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:33
CPC Classifications
F; F41; F41B; F41B5/00; F41B5/14; F41B5/1403; F41B5/1426
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
110 words
A stabilizer for an archery bow comprising a rod member adapted to be fixed at a suitable position on an archery bow, said rod having a free end, a weight body connected to the free end of the rod member, said weight body comprising a non-magnetic outer casing, said casing including a plurality of individual weight members therein, said weight members being permanent magnets, said weight body being larger in size than necessary to house the weight members, and said weight members being individually movable inside of said casing in side by side relationship so that energy of any vibration or shock transmitted to the weight members is thereby consumed.
Claim 2
Dependent Claim
110 words
A stabilizer for an archery bow comprising a rod member adapted to be fixed at a suitable position on an archery bow, said rod having a free end, a weight body connected to the free end of the rod member, said weight body comprising a non-magnetic outer casing, said casing including a plurality of individual weight members therein, said weight members being permanent magnets, said weight body being larger in size than necessary to house the weight members, and said weight members being individually movable inside of said casing in side by side relationship so that energy of any vibration or shock transmitted to the weight members is thereby consumed.
Claim 3
Dependent Claim
38 words
A stabilizer as set forth in claim 1 wherein said weight body further comprises a magnetic member attached to and positioned inside of said casing, any one Of said weight members being magnetically attracted by said magnetic member.
Claim 4
Dependent Claim
22 words
A stabilizer as set forth in claim 2 wherein the north to south magnetic poles is the arrangement of said weight members.
Claim 5
Dependent Claim
33 words
A stabilizer as set forth in claim 1 wherein the weight members are arranged in said weight body in a north-north, south-south manner so that a repelling force acts between the weight members.
Claim 6
Dependent Claim
40 words
A stabilizer as set forth in claim 1 wherein said plurality of weight members consists of four permanent magnets, and the north magnetic poles of the adjacent pair of permanent magnets adjacent each other with a repelling force acting therebetween.
Claim 7
Dependent Claim
56 words
A stabilizer as set forth in claim 1 wherein said plurality of weight members consists of four permanent magnets, the north magnetic poles of the outwardly disposed pair of permanent magnets are positioned away from each other and the north magnetic poles of the intermediately disposed adjacent pair of permanent magnets are arranged facing each other.
Claim 8
Dependent Claim
50 words
A stabilizer as set forth in claim 1 wherein the outer casing made of a non-magnetic material is connected to the free end of the rod member in such a manner that the longitudinal axis of the outer casing is disposed perpendicular to the longitudinal axial of the rod member.
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) | 1975-08-15 | 1976-02-14 | 1976-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-15 | 1980-02-14 | 1980-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-15 | 1984-02-14 | 1984-08-15 | $7700.00 | Window Closed / Lapsed |