Patents
US 8635994 B1: Multilayer composite limbs for an archery bow
- Granted
- 2014-01-28
- Filed
- 2009-10-19 application 12581818
- Type
- Utility · 26 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An archery bow comprises a central riser, first and second bow limbs attached to the riser, and a draw cable coupled to the bow limbs. Each bow limb comprises a multilayer composite structure having a compression layer, a tension layer, and an intermediate layer between the compression and tension layers, with the limbs arranged so that drawing the bow causes each limb to bend toward its corresponding compression layer. Each layer comprises corresponding fibers embedded in a corresponding polymer matrix. Elastic moduli of the compression and tension layers are each smaller than that of the intermediate layer. A method comprises attaching the first and second bow limbs to the riser and coupling the draw cable to the limbs. Another method can further comprise forming each bow limb by embedding the corresponding fibers of each layer in the corresponding polymer matrix, and curing the corresponding polymer matrix.
Source: PVGPATDIS, file of 2026-04-10 (ipg140128.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| BOWTECH, LLC 21 patents | US company or organization | Eugene, OR | BOWTECH, LLC State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Craig Thomas Yehle | Junction City, OR | 53 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F41B | Weapons for projecting missiles without use of explosive or combustible propellant charge; weapons not otherwise provided for | F41B5/0068 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2023-01-20 | Security interest Security interest Patent security agreement | BLACK GOLD ARCHERY, LLC signed 2023-01-19 BOWTECH, LLC signed 2023-01-19 EXCALIBUR CROSSBOW, LLC signed 2023-01-19 | TEXAS CAPITAL BANK, AS ADMINISTRATIVE AGENT DALLAS, TX | 62439/321 | ECORSEXC, file of 2026-09-25 |
| 2022-11-04 | Correction Entity conversion | BOWTECH, INC. signed 2022-07-13 | BOWTECH, LLC EUGENE, OR | 61882/752 | ECORSEXC, file of 2026-09-25 |
| 2022-07-07 | Release of security interest Release of security interest | ANTARES CAPITAL LP, AS US AGENT signed 2022-07-01 | EXCALIBUR CROSSBOW, INC. EUGENE, OR | 60427/413 | ECORSEXC, file of 2026-09-25 |
| 2015-09-08 | Security interest Security interest Assignment of intellectual property security agreement | GENERAL ELECTRIC CAPITAL CORPORATION signed 2015-08-21 | ANTARES CAPITAL LP CHICAGO, IL | 36562/510 | ECORSEXC, file of 2026-09-25 |
| 2014-04-28 | Security interest Security interest Security interest | BOWTECH, INC. signed 2014-04-28 | GENERAL ELECTRIC CAPITAL CORPORATION, AS US AGENT CHICAGO, IL | 32766/929 | ECORSEXC, file of 2026-09-25 |
| 2014-03-26 | Name change Change of name | EXTREME TECHNOLOGIES, INC. signed 2013-07-11 | BOWTECH, INC. EUGENE, OR | 32526/967 | ECORSEXC, file of 2026-09-25 |
| 2013-12-22 | Name change Change of name | EXTREME TECHNOLOGIES, INC. signed 2013-07-11 | BOWTECH, INC. EUGENE, OR | 31867/601 | ECORSEXC, file of 2026-09-25 |
| 2012-12-14 | Assignment Assignment of assignor's interest | YEHLE, CRAIG T. signed 2012-12-14 | EXTREME TECHNOLOGIES, INC. EUGENE, OR | 29470/371 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.