Patents
US 12667191 B2: Weight responsive chair
- Granted
- 2026-06-30
- Filed
- 2023-10-20 application 18382257
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An office-type chair includes a weight responsive mechanism having a front link pivotally connected between the base and the seat, a rear link pivotally connected between the seat and the backrest, and a resilient element, wherein the force of a user occupying the seat pivots the front link and the rear link against a resistance created by the resilient element an amount proportional to the weight of the user to increase the effective length of the moment arm between the user and the recline axis, such that the force to pivot the backrest about the recline axis varies as a function of the weight of the user. In one embodiment, a secondary recline spring between the base and the backrest, the secondary spring contributing to the biasing force of the recline tension spring when the backrest is moved to the reclined position.
Source: PTBLXML, file of 2026-06-30 (ipgb20260630.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Haworth, Inc. 200 patents | US company or organization | Holland, MI | PTBLXML, file of 2026-06-30 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Peter J. Beyer | Hamilton, MI | 13 | PTBLXML, file of 2026-06-30 | |
| Kyle R. Fleet | Zeeland, MI | 18 | PTBLXML, file of 2026-06-30 | |
| Teresa A. Bellingar | Holland, MI | 19 | PTBLXML, file of 2026-06-30 | |
| Mark J. Sherman | Zeeland, MI | 11 | PTBLXML, file of 2026-06-30 | |
| John A. Colasanti | Hudsonville, MI | PTBLXML, file of 2026-06-30 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A47C | Chairs; sofas; beds | A47C1/03272 | PTBLXML, file of 2026-06-30 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-01-09 | Security interest Security interest Security interest | HAWORTH, INC. signed 2026-01-07 | PNC BANK, NATIONAL ASSOCIATION PITTSBURGH, PA | 74279/827 | PASDL, file of 2026-10-15 |
| 2023-10-20 | Assignment Assignment of assignor's interest | BEYER, PETER J. signed 2023-10-19 FLEET, KYLE R. signed 2023-10-19 BELLINGAR, TERESA A. signed 2023-10-19 SHERMAN, MARK J. signed 2023-10-19 COLASANTI, JOHN A. signed 2023-10-19 | HAWORTH, INC. HOLLAND, MI | 65295/567 | PASDL, file of 2026-10-15 |
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.