|Publication number||USRE42842 E1|
|Application number||US 11/874,833|
|Publication date||Oct 18, 2011|
|Priority date||Jan 23, 2002|
|Also published as||CA2473523A1, CA2473523C, US6966314, US20030136392, WO2003062733A1|
|Publication number||11874833, 874833, US RE42842 E1, US RE42842E1, US-E1-RE42842, USRE42842 E1, USRE42842E1|
|Inventors||Mathew A. McPherson|
|Original Assignee||Mcpherson Mathew A|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (14), Non-Patent Citations (2), Referenced by (6), Classifications (11), Legal Events (2)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The subject invention relates to archery bows, and particularly to a device for damping the vibration and sound generated in the process of drawing and releasing the bow string.
The bowstring on an archery bow is under a great deal of tension when the bow is in the braced condition. The bowstring carries at least a portion of the load required to bring the bow limbs to the brace position. In the case of the compound bow the bowstring carries the greatest portion of the load imposed between the bows limb tips in the brace condition with the secondary cables carrying the remainder. On recurve bows the bowstring is subjected to the entire load imposed between the bows limb tips. As such when the bowstring is displaced at or near its center and released it vibrates like a string on a musical instrument sending vibrations into the strings attachment points as well as creating noise by displacing the air around it.
A number of innovations have been directed at reducing the noise associated with these residual string vibrations associated with shooting a bow. In some cases attachments have been placed on the bowstring at various locations in an attempt to lessen or dampen these vibrations and the associated noise level. Some of these items with such names as Bear Puffs, Spider legs and String Leaches are well known to those in the sport as accessories that can be attached to the bowstring to reduce string noise.
Another means to reduce bow string vibration is disclosed in U.S. Pat. No. 4,061,125 titled “BOWSTRING POSITIONING DEVICE”. The '125 patent shows an arm which extends rearwardly from the bow handle having a resilient member mounted on the extended end which engages the bowstring in the bows braced position. Along these same lines U.S. Pat. No. 4,461,267 titled “COMPOUND BOW” shows the use of two similar devices extending reward from the bow handle and intercepting the bowstring. While these devices were rather efficient at damping the bow strings vibrations that would otherwise been transmitted into the bow handle, the resiliency of the bumpers themselves did little to reduce the string noise and in most cases amplified rather than reduced the string noise. U.S. Pat. No. 5,720,269 titled “BOWSTRING SOUND DAMPENER” operates similar to the previously mentioned patents but provides a better means of arresting the bowstring so as to reduce string noise. All three patents '125, '267 and '269 are forms of string bumpers that engage the bowstring near the bowstrings center point in an area where the bowstring is traveling the fastest during arrow launch and all three string bumpers stop the forward progress of the bowstring at the brace position making separation of the arrow from the bowstring abrupt and premature. While the string bumpers of the '125 and '269 patents tend to reduce the shock and vibrations felt at the bow hand when shooting they did very little to reduce string noise and in most cases aggravated that problem. The initial impact point of the bowstring on these bow handle mounted bumpers tends to be laterally inconsistent and results in effecting shooting accuracy adversely.
Applicants have solved the problem identified above with a bowstring vibration and noise suppressor. The vibration and noise suppressor is carried by a support having an attachment device at an end of the support for attachment to a limb of an archery bow. The support carries the vibration and noise suppressor which is configured and arranged to suppress vibration and noise created by the bowstring when launching an arrow.
The attachment device can be a U-shaped bracket designed to attach to the tip of a limb. The attachment device could also be a bracket shaped to attach to one side of the limb tip, either by gluing or with set screws. The vibration and noise suppressor can be an elastomer, such as a rubber or urethane and may also be solid or semi-solid, such as a gel material.
The support may be made of aluminum, plastic or a composite material, such as fiberglass, carbon composite or carbon laminate, or any other desired material.
A detailed description of the invention is hereafter described with specific reference being made to the drawings in which:
While this invention may be embodied in many different forms, there are shown in the drawings and described in detail herein specific preferred embodiments of the invention. The present disclosure is an exemplification of the principles of the invention and is not intended to limit the invention to the particular embodiments illustrated.
Referring now to
As best seen in
The support section 26 and U-shaped bracket 27 are made of rigid aluminum in the embodiment shown in
The noise and vibration suppressing material 28 may be any elastomer, such as rubber or urethane, and may be either solid or semi-solid, such as a gel material. Applicant is currently using a formulation sold by RTP Company, 580 East Front Street Winona, Minn., 55987, U.S.A. called #2799 SX 96204, which is a styrenic thermoplastic elastomer having a 30 durometer (30 Shore A).
As best seen in
As seen in
The above examples and disclosure are intended to be illustrative and not exhaustive. These examples and description will suggest many variations and alternatives to one of ordinary skill in this art. All these alternatives and variations are intended to be included within the scope of the attached claims. Those familiar with the art may recognize other equivalents to the specific embodiments described herein which equivalents are also intended to be encompassed by the claims attached hereto.
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|Citing Patent||Filing date||Publication date||Applicant||Title|
|US8656899 *||Jan 5, 2011||Feb 25, 2014||Hunter's Manufacturing Co.||Barrel cable suppressor|
|US8991380||Feb 25, 2014||Mar 31, 2015||Hunter's Manufacturing Co., Inc.||Barrel cable suppressor|
|US9046317 *||Oct 31, 2012||Jun 2, 2015||Mcp Ip, Llc||Archery bow cable damper|
|US9200863||Jan 6, 2014||Dec 1, 2015||Hunter's Manufacturing Co., Inc.||Crossbow cable saver|
|US20120006311 *||Jan 5, 2011||Jan 12, 2012||Hunter's Manufacturing Company, Inc., d/b/a as TenPoint Crossbow Technologies||Barrel Cable Suppressor|
|US20140116408 *||Oct 31, 2012||May 1, 2014||Mcp Ip, Llc||Archery bow cable damper|
|U.S. Classification||124/89, 124/86, 124/25.6|
|International Classification||F41B5/14, F41B5/20|
|Cooperative Classification||F41B5/1426, F41B5/1407, F41B5/105|
|European Classification||F41B5/14D2, F41B5/14D6, F41B5/10B|
|Nov 1, 2011||CC||Certificate of correction|
|Feb 28, 2013||FPAY||Fee payment|
Year of fee payment: 8