US4570608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Archery bow stabilizer and vibration dampener
Assignee: Individual
•
Filing: 1983-03-29
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Granted: 1986-02-18
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Expires: 2003-03-29
Abstract
Abstract An inertial archery bow stabilizer and vibration dampner is disclosed. A stud is rigidly embedded in the archery bow and has an energy disipating rod fixed to and projecting forwardly of the stud. The rod is received within an encapsulating sealed cylinder having an internal chamber filled with a viscous fluid in which the rod is disposed. At its outer end and externally thereof, the cylinder is provided with another stud to which the archer may afix a selected stabilizing weight. The stabilizer is effective to limit bow movement during arrow cast and rapidly dampen and attenuate energy released as characterized by dampened bow vibration.
Inventors
- 👤 Ernest W. Masterfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:15
CPC Classifications
F; F41; F41B; F41B5/00; F41B5/14; F41B5/1403; F41B5/1426
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
82 words
In an inertial stabilizer for a conventional archery bow, said stabilizer comprising: a hollow member, a viscous fluid disposed in said member, energy dissipating means including a stud for rigid connection to a conventional bow, said hollow member being fixedly and rigidly connected to the stud, a rod connected to the stud and disposed within the hollow member in direct contact with the viscous fluid, said stabilizer being arranged to extend outwardly and generally forwardly of said conventional bow when mounted thereon.
Claim 2
Dependent Claim
82 words
In an inertial stabilizer for a conventional archery bow, said stabilizer comprising: a hollow member, a viscous fluid disposed in said member, energy dissipating means including a stud for rigid connection to a conventional bow, said hollow member being fixedly and rigidly connected to the stud, a rod connected to the stud and disposed within the hollow member in direct contact with the viscous fluid, said stabilizer being arranged to extend outwardly and generally forwardly of said conventional bow when mounted thereon.
Claim 3
Dependent Claim
33 words
An inertial stabilizer for a conventional archery bow according to claim 1, and including connection means at the outer end of the member adapted to fixedly and selectively connect a stabilizer weight thereto.
Claim 4
Independent Claim
139 words
An apparatus for rigid, removable attachment to a forward portion of a handle on a conventional archery bow to dampen vibrations during arrowcasting comprising: an axially elongated hollow member having a viscous fluid disposed within a chamber in the member, means to fixedly secure the apparatus to a bow so that the axially elongated member extends generally forwardly of a bow, and means communicating with the viscous fluid to distribute bow-created vibrations to the fluid during arrowcast and to thereby dampen the vibratory effects of the deflexing energy of an arrowcast on a bow, said communicating means comprising an energy distributing rod means having one end thereof formed for rigid embedment in a forward bow handle portion and with the other end of said rod means projecting forwardly into the chamber and into direct contact with the viscous fluid.
Claim 5
Independent Claim
139 words
An apparatus for rigid, removable attachment to a forward portion of a handle on a conventional archery bow to dampen vibrations during arrowcasting comprising: an axially elongated hollow member having a viscous fluid disposed within a chamber in the member, means to fixedly secure the apparatus to a bow so that the axially elongated member extends generally forwardly of a bow, and means communicating with the viscous fluid to distribute bow-created vibrations to the fluid during arrowcast and to thereby dampen the vibratory effects of the deflexing energy of an arrowcast on a bow, said communicating means comprising an energy distributing rod means having one end thereof formed for rigid embedment in a forward bow handle portion and with the other end of said rod means projecting forwardly into the chamber and into direct contact with the viscous fluid.
Claim 6
Dependent Claim
88 words
In a stabilizer for a conventional archery bow having a central handle portion comprising; a hollow generally cylindrical member having a chamber therein, a viscous fluid disposed within said chamber, securing means at one end of the generally cylindrical member to fixedly mount the stabilizer to a handle portion of an archery bow so that, when so mounted, the stabilizer will project generally forward of a bow handle portion, said securing means including energy distributing means disposed within the chamber and in direct contact with the viscous fluid.
Claim 7
Dependent Claim
88 words
In a stabilizer for a conventional archery bow having a central handle portion comprising; a hollow generally cylindrical member having a chamber therein, a viscous fluid disposed within said chamber, securing means at one end of the generally cylindrical member to fixedly mount the stabilizer to a handle portion of an archery bow so that, when so mounted, the stabilizer will project generally forward of a bow handle portion, said securing means including energy distributing means disposed within the chamber and in direct contact with the viscous fluid.
Claim 8
Dependent Claim
61 words
A stabilizer according to claim 4, wherein said securing means includes: one end of a stud formed for embedment in the handle portion when the stabilizer is mounted on a bow, the other end of said stud being rigidly connected to the generally cylindrical member, said energy distributing means including a rod connected to the stud and disposed within the chamber.
Claim 9
Dependent Claim
40 words
A stabilizer according to claim 5, and including: means removably connecting an inertial stabilizing weight to the cylindrical member at the point thereon most distal from a bow handle portion when the stabilizer is mounted on a bow handle portion.
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) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |