Suspended drywall ceiling grid system support members
US11802407B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2021 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Apr 29, 2042 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B9/245
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A support member for a suspended drywall ceiling grid system includes a central web formed of two layers of sheet metal having first and second ends, a reinforcement bulb extending from an upper portion of the central web between the first and second ends, opposed flanges extending from a lower portion of the central web between the first and second ends, first and second end connectors integral with the central web and extending from the first and second ends of the central web, respectively, past the flanges, each of the opposed flanges having an upper surface and a knurled lower surface between the central web and a rolled edge portion, and each rolled edge portion having an initial region tilted downward and outward and extending into a curved region, wherein the curved region is rolled upward and inward and terminates in an outer edge toward the initial region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.