Patents
US 11253741 B2: Cam mechanism for adjustable torque without cable slack
- Granted
- 2022-02-22
- Filed
- 2018-03-07 application 16487215
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A cam mechanism may include a cam assembly rotatably mounted to an axis shaft and having a profile arc adapted for receiving a belt or cable, a belt adjustment lever pivotally mounted to the cam assembly and having a control bearing, and a cam range slot plate rigidly mounted to the axis shaft and defining a slot in sliding communication with the control bearing of the belt adjustment lever, wherein the belt adjustment lever is connected to one end of a belt or cable, and the opposite end of the belt or cable is connected to a moveable weight stack, and wherein the cam assembly is rotatable relative to the cam range slot plate.
Source: PVGPATDIS, file of 2026-04-10 (ipg220222.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Specialty Fitness Systems, LLC 13 patents | US company or organization | Chambersburg, PA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Jerry K. Leipheimer | Sharon, PA | 14 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A63B | Apparatus for physical training, gymnastics, swimming, climbing, or fencing; ball games; training equipment | A63B21/155 | 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 |
|---|---|---|---|---|---|
| 2019-08-20 | Assignment Assignment of assignor's interest | LEIPHEIMER, JERRY K. signed 2018-03-08 | SPECIALTY FITNESS SYSTEMS, LLC FRANKLIN, PA | 50102/341 | 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.