Patents
US 8529389 B2: Inverted tooth chain and sprocket drive system with reduced meshing impact
- Granted
- 2013-09-10
- Filed
- 2010-06-14 application 12814963
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An inverted tooth chain and sprocket drive system in which the initial contact distance ICD, the meshing impact angle Sigma (σ), the link plate entrance angle Beta (β), and other aspects of the meshing geometry are controlled and optimized to reduce noise and vibration by using a particular chain link plate form and, in preferred cases, by modifying the sprocket tooth pressure angle. The system can include first and second sprockets for which the pressure angle can be controlled to ensure that the desired values for the initial contact distance ICD, the meshing impact angle Sigma (σ), and the link plate entrance angle Beta (β) are equal for both sprockets even though the sprockets have different tooth counts. For a chain pitch P in the range of 6.35 mm to 7.7 mm, the initial contact distance ICD is controlled such that 0.49P≦ICD≦0.53P, the meshing impact angle Sigma (σ) is controlled such that σ≦34°, and the link plate entrance angle Beta (β) is controlled such that β≦9°. For certain chain and sprocket configurations, σ≦31° and β≦7°.
Source: PVGPATDIS, file of 2026-04-10 (ipg130910.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Cloyes Gear and Products, Inc. 19 patents | US company or organization | Barling, AR | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| James D. Young | Chesaning, MI | 17 | PVGPATDIS, file of 2026-04-10 | |
| Darren J. Stewart | Howell, MI | 6 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F16G | Belts, cables, or ropes, predominantly used for driving purposes; chains; fittings predominantly used therefor | F16G13/04 | PVGPATDIS, file of 2026-04-10 |
| F16H | Gearing | F16H7/06 | 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 |
|---|---|---|---|---|---|
| 2022-02-18 | Release of security interest Release of security interest | LBC CREDIT AGENCY SERVICES, LLC, AS AGENT signed 2022-02-17 | HH-CLOYES, INC. FORT SMITH, AR | 59232/1 | ECORSEXC, file of 2026-09-25 |
| 2018-07-09 | Assignment Assignment of assignor's interest | CLOYES GEAR AND PRODUCTS, INC. signed 2018-04-04 | HH-CLOYES, INC. FORT LAUDERDALE, FL | 47254/45 | ECORSEXC, file of 2026-09-25 |
| 2018-06-21 | Security interest Security interest Security interest | HH-CLOYES, INC. signed 2018-04-04 | LBC CREDIT AGENCY SERVICES, LLC, AS AGENT PHILADELPHIA, PA | 46410/539 | ECORSEXC, file of 2026-09-25 |
| 2018-04-05 | Release of security interest Release of security interest | JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT signed 2018-04-04 | CLOYES GEAR AND PRODUCTS, INC. FORT SMITH, AR | 45845/469 | ECORSEXC, file of 2026-09-25 |
| 2017-06-08 | Security interest Security interest Security interest | AMERICAN AXLE & MANUFACTURING, INC. signed 2017-06-05 CLOYES GEAR AND PRODUCTS, INC. signed 2017-06-05 GREDE II LLC signed 2017-06-05 GREDE LLC signed 2017-06-05 METALDYNE BSM, LLC signed 2017-06-05 METALDYNE, LLC signed 2017-06-05 MSP INDUSTRIES CORPORATION signed 2017-06-05 | JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT BROOKLYN, NY | 42734/1 | ECORSEXC, file of 2026-09-25 |
| 2017-04-06 | Release of security interest Release of security interest in patents recorded at r/f 034024/0217 | GOLDMAN SACHS BANK USA, AS AGENT signed 2017-04-06 | CLOYES GEAR AND PRODUCTS, INC. FORT SMITH, AR | 42178/504 | ECORSEXC, file of 2026-09-25 |
| 2014-10-21 | Release of security interest Release of security interest in patents (release of 029087/0140) | GOLDMAN SACHS BANK USA signed 2014-10-20 | CLOYES GEAR AND PRODUCTS, INC. FORT SMITH, AR | 34029/635 | ECORSEXC, file of 2026-09-25 |
| 2014-10-20 | Security interest Security interest Patent security agreement | CLOYES GEAR AND PRODUCTS, INC. signed 2014-10-20 | GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT NEW YORK, NY | 34024/217 | ECORSEXC, file of 2026-09-25 |
| 2013-02-14 | Release of security interest Termination of security interest reel/frame 025998/0965 and 028863/0964 | BANK OF AMERICA, N.A. signed 2012-10-05 | CLOYES GEAR AND PRODUCTS, INC. FORT SMITH, AR | 29816/396 | ECORSEXC, file of 2026-09-25 |
| 2012-10-08 | Release of security interest Termination of security interest | BANK OF AMERICA, N.A., signed 2012-10-05 | CLOYES GEAR AND PRODUCTS, INC., FORT SMITH, AR | 29088/944 | ECORSEXC, file of 2026-09-25 |
| 2012-10-05 | Security interest Security interest Security agreement | CLOYES GEAR AND PRODUCTS, INC. signed 2012-10-05 | GOLDMAN SACHS BANK USA, AS COLLATERAL AGENT NEW YORK, NY | 29087/140 | ECORSEXC, file of 2026-09-25 |
| 2012-08-28 | Security interest Security interest Security agreement | CLOYES GEAR AND PRODUCTS, INC. signed 2012-08-24 | BANK OF AMERICA, N.A., AS AGENT CHICAGO, IL | 28863/910 | ECORSEXC, file of 2026-09-25 |
| 2011-03-22 | Security interest Security interest Security agreement | CLOYES GEAR AND PRODUCTS, INC. signed 2011-03-21 | BANK OF AMERICA, N.A., AS COLLATERAL AGENT SAN FRANCISCO, CA | 25998/965 | ECORSEXC, file of 2026-09-25 |
| 2010-10-18 | Assignment Assignment of assignor's interest | STEWART, DARREN J. signed 2010-10-06 YOUNG, JAMES D. signed 2010-10-06 | CLOYES GEAR AND PRODUCTS, INC. FORT SMITH, AR | 25149/858 | 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.