Mechanical guns and projectors – Spring – Bow
Reexamination Certificate
2000-02-11
2001-07-10
Ricci, John A. (Department: 3712)
Mechanical guns and projectors
Spring
Bow
C124S900000
Reexamination Certificate
active
06257219
ABSTRACT:
BACKGROUND OF THE INVENTION
Applicant is the inventor of U.S. Pat. No. 5,809,982, which issued Sep. 22, 1998 and was entitled “Compound Bow With Counteracting Weight”, the entire contents of which are hereby incorporated by reference.
When a cam returns to the rest position after the bow is shot, it vibrates or oscillates back and forth very quickly, along with the bowstring, with the vibration damping out over a short period of time. Applicant has discovered that by mounting the counterweight elastically or resiliently to the cam and/or the idler wheel , the vibration is more quickly dampened out because the counterweight acts in opposition to the vibration, as well as providing the other benefits discussed in connection with U.S. Pat. No. 5,809,982.
BRIEF SUMMARY OF THE INVENTION
The inventive elastically mounted counterweight is comprised of a body having a rotation point for journaling the body to a bow limb. The body includes a damping device for absorbing vibrational energy as the rotating member vibrates against a bowstring when the rotating member returns to a rest position from a drawn position.
The rotating member may either be a cam or a pulley and may either be used on a single rotating member or both rotating members on the bow.
The damping device may be a counterweight which is either resiliently or elastically mounted to the body, such as carrying the counterweight in a rubber mounting ring.
The end of the extension arm may itself be elastically or resiliently mounted to the remainder of the extension arm to dampen vibration, either alone or in combination with the elastically mounted counterweight.
These and other more detailed and specific objectives and an understanding of the invention will become apparent from a consideration of the following Detailed Description of the Invention in view of the Drawings.
Other inventions which may be utilized with, or which may be otherwise relevant to, the present invention are disclosed in the following concurrently filed and commonly assigned applications: U.S. application Ser. No. 09/503,013, entitled “Bow Vibration Damper”; U.S. application Ser. No. 09/502,643, entitled “Dual Feed Pivoting Feed-Out”; U.S. application Ser. No. 09/502,354, entitled “Round Wheel Cam”; U.S. application Ser. No. 09/502,917, entitled “Archery Bow with Bow String Coplanar with the Longitudinal Axis of the Bow Handle”; and U.S. application Ser. No. 09/502,152, entitled “Level Nocking Point Travel Cam”.
For the purpose of this disclosure, all US patents and patent applications and all other publications referenced herein are incorporated herein by reference in their entirety.
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McPherson Mathew A.
Ricci John A.
Vidas Arrett & Steinkraus P.A.
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